Cost of capital — private equity & credit

Your hurdle rate only looks conservative.

Are you measuring the 'true' cost of your fund's capital

An 8% threshold sits comfortably above a 7.27% blended funding cost. Seventy-three basis points of headroom. Then you count the capital sitting idle, the facilities drawn early, and the fees accruing on both — and the headroom is gone. Yield Horizon measures the cost of capital at the point of deployment — including funding costs, idle capital, fees and timing effects.

Yield Horizon helps private equity and private credit funds identify the hidden cost of idle, early-drawn and inefficiently deployed capital, so investment committees can make better deployment decisions.

Built by a fund finance and treasury practitioner — nine years across European private equity and private debt funds at Oaktree, before that Citco and KPMG. Not a consultancy pyramid.

Marginal ICC — worked example EUR 750mm fund
0 ↑ static hurdle 800
Funding cost
Costs the hurdle never sees
LP capital — 60% at 8.00%480 bps
Subscription line — 30% at 5.20%156 bps
NAV facility — 10% at 9.10%91 bps
Weighted funding cost727 bps

What the hurdle rate misses

Net idle capital drag361 bps
FX / IRS sourcing cost32 bps
Drawn capital opportunity cost76 bps
Invisible cost — outside the hurdle469 bps
Marginal ICC 1,196 bps
Static hurdle rate800 bps
Capital underpriced by396 bps

Illustrative, on the five-component ClarityStack v3.4 engine. Components are rounded to the nearest basis point; totals are computed on unrounded figures. Every input — source mix, days idle, drawdown timing, fee basis — is yours to set. See the full calculation, or start with the glossary if the terms are unfamiliar.

The invisible 469

Three costs that never reach the investment committee.

We call them invisible because the hurdle rate never sees them. A bank bills you for interest and it lands in the accounts; nobody bills you for the profit you failed to make while capital sat waiting. Both are real money. Only one gets counted — and the uncounted ones arise from timing rather than pricing, which is why a hurdle rate set once at fund formation cannot possibly capture them.

727 bps

Weighted funding cost

LP preferred return, subscription line and NAV facility, blended by their real share of the next drawdown. Conventional, well understood, and comfortably below a typical 800bps hurdle.

361 bps

Net idle capital drag

Preferred return compounds from the call date, not the deployment date, and the capital forgoes the return it would have earned deployed. Ninety days of idle capital costs EUR 11.0m gross — EUR 9.4m after deposit interest, and only if the LPA permits placement at all.

32 bps

FX / IRS sourcing cost

Only the premium over the base-currency tranche is incremental — the base draw is already priced in the funding cost. Charge the full path rate and you double-count it. Add the carry on swapping floating to fixed and the sourcing decision is worth 32 bps.

76 bps

Drawn capital opportunity cost

Facilities drawn ahead of deployment cost you the interest on the borrowing and the return that capital was not earning. Treasury systems capture the first because someone invoices for it. Nobody invoices for the second.

The discipline argument

What gets measured is the smaller number.

EUR 60m drawn seventy-five days ahead of deployment. The interest on that borrowing is invoiced, booked and visible — EUR 641,096. The return that capital was not earning while it sat there is neither invoiced nor booked, and it is nearly three times larger. Both are real. Only one shows up.

What treasury books
EUR 641,096
Facility interest at 5.20% for 75 days
What it actually costs
EUR 1,972,603
Sub line interest plus forgone deployment return at 14.00%, less deposit yield earned
Understated by 3.1×

Where ICC sits

WACC values the portfolio. ICC prices the decision.

ICC does not replace your valuation work. It sits earlier — a gate before IC approval, and an audit trail afterwards.

Anchor
WACC and CAPM derive from public market data and equity beta.
ICC derives from your LPA, facility pricing and drawdown log.
Frequency
Refreshed annually, sometimes quarterly.
Recalculated at the point of approval.
Basis
Average cost across the whole capital base.
Marginal cost of the next euro deployed.
Output
A framework requiring translation before use.
One line in the IC memo, with the workings visible.

Delivery

Six weeks, start to IC-ready.

The sequence is fixed because each stage depends on the one before it. Discovery sets the inputs; the build encodes them; the pilot proves them against live deals.

Weeks 1–2

Discovery

Capital structure mapping across LPA, credit agreements and hedging policy. Deployment pattern and idle capital audit.

Weeks 3–4

Build

ClarityStack™ calibrated to your fund. Capital source decision matrix integrated into the treasury playbook. IC memo template with an ICC field.

Weeks 5–6

Pilot

Live test across three to five deals. Variance analysis against your existing hurdle and against realised cost.

Ongoing

Institutionalise

Quarterly reporting, annual policy refresh, and LP-facing materials where capital allocation rigour is worth demonstrating. Every quarterly run is committed to a ledger and bridged to the last, so the committee sees why the number moved, not just that it did.

Engagement

Priced against the drag it removes.

On the worked example above, the invisible 469 basis points are driven by EUR 11.4m of drag on EUR 260m of capital called or drawn but not yet working. The pilot costs a fraction of one basis point of that.

Pilot

EUR 15–25k
4–6 weeks · capped scope

Calibrated ICC model, IC memo template, three-deal pilot against defined success criteria.

Full integration

EUR 35–50k
Includes annual refresh

Everything in the pilot, plus treasury playbook integration, scenario modelling and LP reporting materials.

Retained support

EUR 5–10k
Per quarter · optional

Policy updates, scenario work on live deals, and recalibration as facility terms change.

Fit

This works for some funds and not others.

Worth establishing early. A short call is usually enough to tell which side you are on.

Strong fit

  • EUR 1–10bn European private equity or credit, with a real treasury function
  • A CFO or COO willing to sponsor the work rather than delegate it downward
  • An investment committee that already applies quantitative gates
  • Active use of subscription lines, NAV facilities or multi-currency deployment
  • Preference for operational rigour over presentation

Poor fit

  • Treasury fully outsourced to the fund administrator
  • Investment committee process that is purely qualitative
  • Entirely evergreen LP base with no preferred return or call mechanics
  • Mid-fundraise and looking for optics rather than substance
  • Expecting a deck rather than a working model

Next step

Bring one live deal.

Thirty minutes, your numbers, no preparation needed. We calculate the marginal ICC on a deal you are actually looking at and compare it to the threshold you would otherwise have used. If the gap is not material, that is a useful answer too.

Book a diagnostic
Experience16+ years, in fund finance and private markets
SectorEuropean PE and Private Debt
SpecialismFund Finance and Treasury
QualificationICAEW, FCA
BasedLondon, UK
CoverageUK & Europe
ResponseWithin one working day

ClarityStack™ v3.4 — five-component methodology

The calculation, shown in full.

Nothing here is a black box. Every input has a stated source, every component has visible logic, and the two judgement variables are labelled as judgement variables. This is the working model, run on an illustrative EUR 750mm fund.

1,196
Marginal ICC (bps)
800
Static hurdle (bps)
+396
Hurdle understates by
+224
Deal spread over ICC

Start here if the jargon is unfamiliar.

This page is written for finance specialists, but the underlying idea is simple and worth understanding without the vocabulary. Here is the whole thing in ordinary language, followed by definitions of every term used elsewhere on the site.

The idea in one paragraph. A private equity fund raises money from investors and borrows from banks. That money is not free — investors are promised a return and banks charge interest. Before the fund invests in a company, it should check that the expected profit beats what the money is costing. Most funds check against a fixed figure chosen years earlier, usually 8%. That figure ignores several real costs, so it flatters every decision made against it. This model calculates the true, current cost instead.
Where the money comes from The three funding sources, and what each costs
TermIn this exampleWhat it means
LP capital60% at 8.00%Money from the fund's investors — pension schemes, insurers, wealthy families. "LP" means limited partner. They are promised a minimum return, called the preferred return, before the fund manager earns anything. Here that promise is 8% a year. It is the most expensive money in the mix.
Subscription line30% at 5.20%A bank loan secured against investors' unfulfilled promises to pay. Cheap, short-term, and used to move quickly on a deal before asking investors for cash. Sometimes shortened to "sub line".
NAV facility10% at 9.10%A bank loan secured against the companies the fund already owns. "NAV" is net asset value — what those holdings are worth. More expensive than a subscription line because the bank is taking more risk.
The vocabulary Every term used on this site
TermWhat it means
Measurement
Basis point (bps)One hundredth of one percent. 100 bps = 1%. Used because in finance the difference between 8.00% and 11.96% matters enormously, and "396 basis points" is clearer than "than ‘three point nine six percent".
AnnualisedA cost expressed as if it ran for a full year, so figures covering different periods can be compared. A 90-day cost is annualised by scaling it: 90 ÷ 365.
Marginal costThe cost of the next unit, rather than the average across everything so far. It matters because decisions are always about what to do next, and the next euro can cost quite a lot more than the average euro already spent.
The decision
Hurdle rateThe minimum return an investment must promise before the fund will consider it. Traditionally a fixed number set when the fund launched — typically 6% to 8% — and left unchanged for years.
ICCInternal Cost of Capital. What this model produces: the true, current, all-in cost of deploying the next euro. It replaces the fixed hurdle rate with a figure that reflects what is actually happening in the fund today.
IRRInternal rate of return — the annualised profit a deal is expected to make, as a percentage. If a deal's IRR is 14.2% and the ICC is 11.96%, the deal earns 2.24 percentage points more than the money costs.
SpreadThe gap between two rates. Here, the deal's expected return minus the cost of the capital funding it. A positive spread means the deal creates value; a negative one means it destroys value however profitable it looks in isolation.
Investment committee (IC)The group inside the fund that approves or rejects proposed investments. The ICC figure is designed to go into the paperwork they review.
The costs the hurdle rate misses
DragA cost that reduces returns without anyone deciding to incur it. It arises from timing — money sitting still, borrowed too early, or charged fees while doing nothing — rather than from the price of anything.
Invisible costDrag that a static hurdle rate never sees, because it arises from timing rather than pricing: capital sitting idle, facilities drawn early, and currency sourced at a premium. Some of it is invoiced, but most of it is not. Nobody bills a fund for the profit it failed to make while capital sat waiting, yet that loss is as real as any interest payment. In the worked example these costs total 469 bps, about 39% of the fund’s true cost of capital.
Called capitalMoney the fund has formally requested from its investors and now holds. From the moment it is called, the 8% preferred return starts accruing — whether or not it has been invested in anything.
Idle capitalCalled capital that has arrived but not yet been invested. It is costing 8% a year and earning perhaps 3.2% in a deposit account. The difference is pure loss, and it is the largest of the invisible costs.
DeploymentActually investing the money in a company. "Undeployed" means the cash is sitting in an account rather than working.
Commitment feeA small charge banks levy on the unused portion of a loan facility — payment for keeping the money available. Here 0.50% a year.
Facility interestThe interest paid to a bank on borrowed money during the period before it is put to work. Real, invoiced, and usually the only part of the waiting cost anyone records.
Carried interestConfusingly, "carry" in private equity means something else entirely: the fund manager's share of the profits, typically 20% of gains above the preferred return. It is not a cost of capital and plays no part in this model. Mentioned here only so the term is not mistaken for facility interest.
Opportunity costThe value of the thing you did not do. If capital sat in an account for 75 days instead of earning 14% in an investment, that forgone 14% is an opportunity cost. It never appears in the accounts, which is precisely why it gets ignored.
Fund mechanics
LPALimited partnership agreement — the contract between the fund manager and its investors. It sets the preferred return, the fees, and what the manager may do with cash that is waiting to be invested.
Management feeAn annual charge, here 1.50%, paid to the fund manager for running the fund. Charged either on the total investors committed, or on the value of what the fund currently holds.
Commitments vs AuM basisTwo ways of calculating that fee. On a commitments basis it is charged on the full amount investors promised, so it does not change with deployment. On an AuM basis (assets under management) it is charged on current holdings, which means the fund pays fees on capital sitting idle. Describe all three bases (commitments, called capital, NAV) and note that only commitments carries no marginal drag.
GPGeneral partner — the firm managing the fund and making the investment decisions. The client for this work.
Hedging / FXProtecting against currency movements when investing abroad. A euro fund buying a US business can either borrow dollars directly or borrow euros and use a currency contract. The two routes cost different amounts, and the model picks the cheaper.
Why any of this matters. In the worked example the fund believes its capital costs 8%. It actually costs 11.96%. The difference is EUR 11.4m of drag on EUR 260m of capital that had been called or drawn but was not yet working — the preferred return still accruing, the facility interest still running, and the return that capital was not earning. Deals approved in that gap looked profitable and were not.

What the model does, and what it will not do.

ClarityStack calculates the marginal cost of deploying the next unit of capital, for use as a pre-approval gate at investment committee. It replaces a static 6–8% hurdle rate with a live, audit-trailed threshold.

Marginal ICC (%) =  Weighted Cost of Next Unit Deployed
                + Net Idle Capital Drag — v3.4: charges the forgone deployment return symmetrically with Component 5
                + FX Sourcing Cost (optimised) — v3.4: premium form, path-optimised, plus IRS carry
                + Management Fee Drag Adjustment
                + Drawn Capital Opportunity Cost — v3.4: sub line carry + forgone return, less deposit yield earned
Two gating conditions Confirm before switching either toggle on
Neither should be assumed. Both change the answer materially.
ConditionWhat must be confirmedWhere
Multi-currency draw The credit agreement supports drawing in the target currency, at transparent per-currency pricing. Credit agreement
Idle cash placement The LPA permits called-but-undeployed capital to be held in interest-bearing accounts. Limited partnership agreement
Why the toggles must be confirmed. A fund that cannot place idle cash under its LPA carries a materially higher cost of capital than one that can — in this worked example, switching the toggle to NO adds 76 basis points to the marginal ICC.
Hardcoded input — editable
Formula — do not overwrite
Cross-tab link
Judgement variable — confirm before relying on output

Every input carries its source.

Thirty-three inputs (39 with Event Log mode), each labelled, each labelled with the document it comes from. Where a figure is a judgement rather than an observable rate, it says so. The worked example below is an illustrative EUR 750mm fund.

Inputs Edit blue cells only
InputValueUnitBasis / source
1  Fund parameters
Fund size (commitments)750,000,000EURLPA / final close documentation
Current NAV520,000,000EURLatest reported NAV
Called capital (cumulative)600,000,000EURCumulative drawn from LPs
Fund base currencyEURLPA
2  Capital source mix
LP capital — mix %60.0%%Deployment plan / treasury forecast
LP capital — cost (pref rate)8.00%%LPA preferred return
Sub line — mix %30.0%%Deployment plan / treasury forecast
Sub line — all-in cost5.20%%Credit agreement: SOFR/EURIBOR + margin
NAV facility — mix %10.0%%Deployment plan / treasury forecast
NAV facility — all-in cost9.10%%NAV facility agreement
Mix check100.0%%If this is not 100%, weighted cost is under- or overstated
3  Idle capital
Called capital sitting idle200,000,000EURTreasury cash position report
Days idle90daysCall date to expected deployment date
LP preferred return rate8.00%%LPA preferred return
Undrawn facility amount100,000,000EURUndrawn portion of credit facilities
Commitment fees on undrawn facilities0.50%%Credit agreement commitment fee. Charged on the undrawn amount, not on idle cash.
Overnight / term deposit yield3.20%%Treasury sweep rate at measurement date
Toggle: LPA permits idle cash placement?YESY/NMust be confirmed against the LPA. Set NO if unconfirmed.
4  Drawn but undeployed capital  — subscription facility
Amount drawn, not yet deployed60,000,000EURFacility drawdown log vs deployment log. Drawn against uncalled commitments, so it sits inside the EUR 750m envelope and is repaid by a future call.
Days drawn and undeployed75daysDrawdown date to actual deployment date
Facility interest rate on drawn amount5.20%%Subscription facility all-in rate. Re-link to the NAV facility rate (9.10%) for any portion drawn against NAV rather than commitments.
Forgone deployment return14.00%%Judgement input: fund target IRR or realised portfolio IRR
5  FX sourcing
Investment currencyUSDCurrency of the target investment
Foreign-currency deployment amount30,000,000EUR eq.Derived as 40% of the EUR 75m deployment
Proportion of deployment requiring FX40.0%%Set to 0% if the deal is base-currency only
Toggle: multi-currency facility available?YESY/NMust be confirmed in the credit agreement. Set NO if unconfirmed.
Path A — native-currency tranche rate5.65%%Credit agreement: target-currency tranche pricing
Path B — base-currency tranche rate5.20%%Credit agreement: base-currency tranche pricing
Path B — forward points (annualised)0.68%%FX forward quote; embeds cross-currency basis
IRS carry cost (floating → fixed)0.45%%Net cost of swapping floating to fixed
IRS notional as % of deployment30.0%%Share of deployed capital carrying IRS exposure
6  Management fee
Toggle: fee basisCOMMITMENTSCommit / Called / NAVCommitments = no marginal fee on the next unit. Called capital = fee rate × fresh-call share. NAV = full fee rate.
Management fee rate1.50%%LPA management fee provision
7  Drag allocation basis  — non-working capital
Called capital sitting idle (LP-funded)200,000,000EURLinked from section 3
Drawn, not yet deployed (subscription facility)60,000,000EURLinked from section 4
Capital called or drawn but NOT deployed260,000,000EURThe population these drags arise on. Non-overlapping: one pool is LP-funded, the other facility-funded. The model errors if this is ever set to commitments, NAV or cumulative called capital.
8  Deal assessment
Deployment amount for this deal75,000,000EURProposed investment size
Expected deal IRR (gross)14.20%%Deal team underwriting model
Required spread over ICC to proceed1.00%%House policy: minimum ICC clearance margin
The allocation basis is the input that moves the answer most. Fund-level drags — idle capital, fee drag, interest on drawn-but-undeployed capital — are spread across the capital they arise on: EUR 260mm called or drawn and not yet deployed. That is EUR 200mm of idle LP capital plus EUR 60mm drawn on the subscription facility — non-overlapping, because one is funded by a capital call and the other by a facility drawdown, and both sitting inside the EUR 750mm commitment envelope. The base is deliberately not commitments, NAV or cumulative called capital: those are balance-sheet totals, and dividing a 90-day drag by a lifetime balance understates the cost per euro by design.

Five components, built in the open.

Each component states its own logic. The two memo lines exist to show what the calculation would have missed under a simpler method — the gap between them is the argument for doing this properly.

1  Weighted cost of next unit deployed727 bps
2  Net idle capital drag361 bps
3  FX / IRS sourcing cost (optimised)32 bps
4  Marginal management fee drag0 bps
5  Drawn capital opportunity cost76 bps
Marginal ICC 1,196 bps
ICC Calculation All figures derive from the Inputs tab
ComponentValueUnitLogic
Component 1  — Weighted cost of next unit deployed
LP capital contribution4.80%480 bps60.0% of funding × 8.00% preferred return = 4.80%. The largest single cost, because LP capital is both the biggest slice and the most expensive.
Subscription line contribution1.56%156 bps30.0% of funding × 5.20% all-in rate = 1.56%. Cheaper than LP capital, which is why sub lines are drawn first.
NAV facility contribution0.91%91 bps10.0% of funding × 9.10% all-in rate = 0.91%. The most expensive source per euro, but only a tenth of the mix.
Component 17.27%727 bps4.80% + 1.56% + 0.91%. An annual rate: the blended cost of holding this funding mix for a year.
Component 2  — Net idle capital drag  · measured over 90 days
Preferred return accruing on idle capital3,945,205EUREUR 200m idle × (90 ÷ 365) × 8.00% preferred return. The preferred return accrues to LPs from the day capital is called, not the day it is invested — so 90 days of waiting costs real money.
Forgone deployment return on idle capital6,904,110EUREUR 200m idle × (90 ÷ 365) × 14.00%. The return this capital was not earning. Charged here on exactly the same basis as Component 5 charges it on drawn capital: the forgone return belongs to the deployment opportunity, not to the funding source. Omitting it from idle capital whilst charging it on facility draws — as most models do — makes LP capital look cheaper than borrowing.
Commitment fee on undrawn facilities123,288EUREUR 100m undrawn × (90 ÷ 365) × 0.50%. Charged on the undrawn portion of the facility, not on the idle cash balance — a distinction most models get wrong in the fund’s favour.
Less: interest earned on placement(1,578,082)EUREUR 200m × (90 ÷ 365) × 3.20% deposit rate. Earned only where the LPA permits idle cash to be held in interest-bearing accounts. If it does not, this line is zero.
Net idle drag9,394,521EUREUR 3,945,205 + EUR 6,904,110 + EUR 123,288 − EUR 1,578,082. What 90 days of idleness actually costs the fund.
Component 23.61%361 bpsEUR 9,394,521 ÷ EUR 260m non-working capital = 3.61%. A one-off cost per euro of capital called or drawn and not yet deployed.
Component 3  — FX / IRS sourcing cost (optimised)  · premium form
Path A — direct native-currency draw5.65%%Native-currency tranche rate
Path B — base-currency draw + hedge5.88%%Base tranche rate 5.20% + forward points 0.68%, which embed the cross-currency basis
Selected path cost5.65%%Lower path, only where a multi-currency draw is confirmed available
FX premium over base-currency tranche0.45%45 bps5.65% selected path − 5.20% base-currency tranche. This premium is the only incremental cost: the base-currency draw is already priced inside Component 1, so charging the full path rate here would double-count it.
FX sourcing cost0.18%18 bps0.45% premium × 40% of deployment requiring FX = 0.18%
IRS carry cost0.14%14 bps0.45% carry on swapping floating to fixed × 30% notional coverage = 0.14%
Memo: optimisation saving vs hedged path0.09%9 bps(5.88% − 5.65%) × 40% FX proportion. What the path choice is worth at fund level.
Component 30.32%32 bpsFX premium 18 bps + IRS carry 14 bps. Set the FX proportion to 0% and this component falls away entirely.
Component 4  — Marginal management fee drag
Fee basis (selected)Commitments—Commitments | Called capital | NAV
Component 40.00%0 bpsThe fee the next unit of deployment adds: nil on a commitments basis, because the fee does not move with deployment. On a called-capital basis it is 1.50% × the 60% fresh-call share = 0.90%. On a NAV basis it is the full 1.50%. The fee level a fund pays is a separate matter — see the basis diagnostic on the Output tab.
Component 5  — Drawn capital opportunity cost  · subscription facility, measured over 75 days
Combined annualised rate16.00%1,600 bps5.20% subscription facility rate + 14.00% forgone deployment return − 3.20% deposit yield earned whilst the cash sits. You pay interest on the borrowing and lose the return the money would have made if invested, offset only by what the balance earns on deposit. Same construction as Component 2.
Drawn capital opportunity cost1,972,603EUREUR 60m drawn × (75 ÷ 365) × 16.00%. The 75 days run from the drawdown date to the date the money was actually deployed.
Memo: sub line interest alone641,096EUREUR 60m × (75 ÷ 365) × 5.20%. This is the only part the bank invoices for, and the only part most treasury systems record.
Memo: negative carry against idle cash246,575EUREUR 60m × (75 ÷ 365) × (5.20% − 3.20%). Borrowing on the subscription facility whilst holding EUR 200m of idle cash earning the deposit rate. No framework required to see this one — it is arithmetic on two rates the treasurer already knows.
Component 50.76%76 bpsEUR 1,972,603 ÷ EUR 260m non-working capital = 0.76%. A one-off cost per euro of capital called or drawn and not yet deployed.
Marginal ICC  — total
Marginal ICC11.96%1,196 bpsSum of components 1–5. Components are rounded to the nearest basis point; the total is computed on unrounded figures.
Typical static hurdle (reference only)8.00%800 bpsThe proxy this framework replaces — shown for contrast, not used in any calculation
ICC vs static hurdle+3.96%+396 bpsPositive = the static hurdle understates true cost of capital
Two different measurement bases, and why. Components 1, 3 and 4 are annual rates — the cost of holding the funding mix, the currency sourcing and the fee for a year. Components 2 and 5 are one-off costs: a specific euro amount incurred over a specific number of days, divided by non-working capital (€260m). They are added together because the question being asked is a single one: what does it cost, all in, to get the next euro deployed and hold it for a year. If your measurement window is much shorter or longer than a year, say so explicitly when presenting the number, because the two bases only reconcile cleanly when the window is roughly annual.
The memo line on component 5 is the point of the whole exercise. Facility interest alone on drawn-but-undeployed capital is EUR 641,096. Add the return that capital was not earning while it sat there, net of the deposit yield, and the true cost is EUR 1,972,603 — more than three times larger. Treasury systems capture the first number because someone invoices for it. Nobody invoices for the second.

One block, straight into the IC memo.

The output tab is written to be pasted. It gives the committee a recommendation, the attribution behind it, and an audit trail of every condition that was assumed — so the assumptions can be challenged in the room rather than discovered later.

IC Output — decision block Every figure traceable to Inputs
MeasureValueNote
Deployment amountProposed investment size
Marginal ICCLive cost of deploying the next unit of capital
Expected deal IRR (gross)Deal team underwriting model
Spread over ICC2.24%Deal IRR less marginal ICC
Spread over ICC (bps)224Same figure in basis points
Required spread (house policy)Minimum ICC clearance margin
RecommendationPROCEEDProceed only where spread over ICC meets or exceeds house policy minimum
Memo: all-in cost of non-working capital18.44%Annualised. LP preferred return + commitment fee on undrawn facilities + subscription facility interest + forgone deployment return, less deposit yield earned on placement, divided by capital-years non-working (EUR 200m for 90 days + EUR 60m for 75 days). Independent of any allocation base. Cash elements alone — excluding the forgone deployment return, a judgement input — total 4.44%.
Memo: management fee basis differential3,450,000Annual fee on a commitments basis (EUR 11.25m) less the lowest available basis, NAV (EUR 7.80m). A negotiating fact borne by the fund, not a marginal cost of deployment — deliberately excluded from the ICC above.
Memo: every run is on the recordEach committed run is stored in an append-only ledger with its inputs, data cut and checksum, so any past ICC can be reproduced exactly. When the number moves between runs, the Delta Bridge attributes the change to market, volume and assumption effects, with no unexplained residual. Balances can be rebuilt daily from lender interest statements and drawdown records, and are cross-checked against the interest actually charged.
Component attribution Where the cost is coming from
ComponentContributionShare of total ICC
1  Weighted cost of next unit deployed60.8%
2  Net idle capital drag30.2%
3  FX / IRS sourcing cost (optimised)2.6%
4  Marginal management fee drag0.0%
5  Drawn capital opportunity cost6.4%
Total11.96%100.0%
Audit trail — conditions confirmed Challenge these in the room, not afterwards
ConditionSettingNote
Non-working capital baseEUR 200m called and idle (LP-funded) + EUR 60m drawn on the subscription facility. Non-overlapping, and both inside the EUR 750m commitment envelope. Drags are spread across the capital they arise on — not commitments, NAV or cumulative called capital.
Multi-currency facility draw available?YESMust be confirmed in the credit agreement
LPA permits idle cash placement?YESMust be confirmed in the LPA
Management fee basisCOMMITMENTSCommitments basis carries no marginal fee drag — see the fee basis diagnostic
Forgone deployment return14.00%Not a market-observable rate. Defaults to fund target IRR; confirm the house basis.
The audit trail is not decoration. Four of the five conditions above change the answer if they are wrong, and two of them are permissions that must be read out of legal documents rather than assumed. Publishing them alongside the recommendation means the committee is approving a number it can see the shape of.

Next step

Run it on a live deal.

Thirty minutes, your numbers. We set the inputs from your LPA and credit agreement, calculate the marginal ICC on a deal you are actually looking at, and compare it to the threshold you would otherwise have used.

Book a diagnostic
VersionClarityStack™ v3.4
ComponentsFive
Inputs33, each sourced
Worked exampleEUR 750mm fund
FormatExcel, no add-ins

About

I built this framework. Then I turned it into a consultancy.

Nine years inside Oaktree's European Principal Group, across private equity and private debt strategies, watching capital sit idle in a EUR 8.5bn platform — and building the tools to measure what it was costing. ICC is not a consultant's theory. It is an internal discipline, productised.

Simon Williams, founder of Yield Horizon
Simon Williams Founder · London
16+
Years in private markets
8.5bn
EUR — European PE & debt funds
3
Luxembourg, Dublin and Amsterdam domiciles
FCA
ICAEW, qualified 2007

Developed frameworks for monitoring and benchmarking internal cost of capital across funds and investment structures, driving alignment of financing strategies with expected investment returns and liquidity profiles.

From my responsibilities at Oaktree Capital Management

That line is the origin of ClarityStack™. The framework was built inside a fund, for a fund, to answer a question the investment committee kept asking and the existing tools could not settle: given everything we have drawn, hedged and left sitting in a deposit account, what does the next euro actually cost?

Background

Twenty-one years, three sides of the same problem.

Transaction diligence at KPMG, a global bank balance sheet at Citco, then nine years inside the treasury and structuring function of a major alternatives manager — covering European private equity and private debt strategies across Luxembourg, Dublin and Amsterdam platforms. The through-line is the plumbing: how capital is raised, financed, moved and accounted for.

2016 – 2025

Oaktree Capital Management

Senior Vice President, European Principal Group
London

Financial , structuring and liquidity strategy for approximately EUR8.5bn across principal, private equity and debt opportunity funds.

  • Built the internal cost of capital benchmarking frameworks that became ClarityStack™, aligning financing strategy with expected investment returns and liquidity profiles
  • Led negotiation, structuring and implementation of subscription line and NAV facilities supporting investment activity and working capital efficiency
  • Negotiated financing and risk documentation including ISDAs, CSA thresholds and ATE triggers
  • Developed and implemented a strategy-wide FX and interest rate hedging policy covering both investment-level and currency feeder exposures
  • Structured Solvency II-optimised rated feeders, fund-of-one vehicles, evergreen SMAs and sub-participation agreements
  • Built allocation models for SMA and FOO vehicles investing across multiple strategies and sleeves
  • Oversaw multi-jurisdictional SPV holding structures across Luxembourg, Dublin and Amsterdam
  • Advised portfolio managers on capital sourcing for deployment, distributions, financing repayments and collateral posting
  • Partnered with PwC on a firm-wide operational review benchmarking capabilities against peers, driving centralisation of middle-office functions
2009 – 2016

The Citco Group of Companies

Assistant Financial Director, Citco Banks
London, Geneva, Amsterdam

Financial oversight of Citco’s custody banks, serving private equity and hedge fund managers, across a USD 6–9bn balance sheet, with the regulatory and management reporting that goes with it.

  • Directed finance teams of 15–20 across seven countries, delivering consolidated reporting under Basel II/III and CRD IV
  • Finance lead on a global banking system implementation (Temenos T24) and a group-wide Oracle ERP rollout
  • Led the carve-out of a USD100m custody business, supporting refinancing and private equity investment processes involving Goldman Sachs, Stone Point Capital and General Atlantic
2004 – 2009

KPMG LLP

Associate, Transaction Services
London

Financial due diligence on buy-side and sell-side transactions, including carve-outs and post-merger integration planning.

Why one person

You get the person who built it.

The obvious objection to a sole practitioner is capacity. The answer is that this work does not need a pyramid — it needs someone who has read a credit agreement, negotiated a CSA threshold, and had to explain a hedging policy to an investment committee.

Who does the work
A partner sells; associates two years out of university deliver.
The person in the pitch is the person in the model.
The output
A framework document requiring translation before anyone can use it.
A working Excel model calibrated to your LPA and credit agreement.
The vantage point
Advisory experience of fund finance, from outside.
Nine years inside a EUR 8.5bn European PE and private debt platform, accountable for the outcome.
On Big Four reviews
—
I was part of a team that commissioned a Big Four Consultancy. I partnered with PwC on a firm-wide operational review at Oaktree, so I know what that process delivers and what it leaves you to finish yourself.
Capacity
Scales with headcount, so it never constrains what gets sold.
Three concurrent engagements, maximum. The constraint is deliberate, and it is the reason the work holds up.

Each diagnostic is calibrated to your LPA, your credit agreement and your actual facility pricing. That is not work that survives being run in parallel across a dozen clients, so I cap it at three concurrent engagements. When those are full you get a start date, not a substitute.

Qualifications

Credentials.

Fellow, Institute of Chartered Accountants in England and Wales

FCA · qualified 2007

Based in London, covering the UK and Europe

Available for on-site engagement

Next step

Thirty minutes, one live deal.

The quickest way to judge whether this is useful is to run it on a deal you are actually looking at. No preparation needed — bring the numbers and we will calculate the marginal ICC together.

Book a diagnostic
Experience16+ years, private markets
SectorEuropean PE & private debt
SpecialismFund finance & treasury
QualificationICAEW, FCA
BasedLondon, UK