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Playbook · Private Credit

Capital Call Flow

Calls computed from the LPA and side letters, sent per investor, and matched to the wires that arrive.

11 min read

Each drawdown is computed from your fund's own documents: the allocation base the LPA sets for each purpose, excuse rights in the LPA and side letters, fee offsets, and equalisation for later closers. Every investor's amount traces to the clause that produced it, and the split ties out to the cent before anyone signs. A named approver releases the notices. Incoming wires are matched to investors, short payments are explained, and bank details change only after a call-back.

Aldercove Growth Fund III, L.P. · Capital Call No. 07 (drawdown notice)notice 2026-09-30 · due 2026-10-15
investment: Halden Instruments · Q4 management fee
allocation v1 · USD
Per-investor split, one LP excused
Calder County Retirement SystemLP-01Investment7,360,000.00Mgmt fee, net155,833.33Total due7,515,833.33
Lanvik Sovereign HoldingsLP-02Investmentexcused · side letter §3.1Mgmt fee, net194,791.67, including a residual centTotal due194,791.67
Northfield University EndowmentLP-03Investment4,906,666.67, including a residual centMgmt fee, net103,888.89, including a residual centTotal due5,010,555.56
Tamsin Mutual InsuranceLP-04Investment3,066,666.67, including a residual centMgmt fee, net64,930.56, including a residual centTotal due3,131,597.23
Harlow FoundationLP-05Investment1,840,000.00Mgmt fee, net38,958.33Total due1,878,958.33
Ashgrove Family OfficeLP-06Investment1,226,666.66Mgmt fee, net25,972.22Total due1,252,638.88
TotalInvestment18,400,000.00Mgmt fee, net584,375.00Total due18,984,375.00
Σ LP lines = call total · variance 0.00
investment base 97,500,000.00 = remaining commitments of non-excused LPs · LPA s.6.2.4.1
fee 1.75% ÷ 4 on commitment = 984,375.00, less fee income 400,000.00 split by commitment · LPA s.8.3–8.4
rounding: floor to the cent, residual by largest remainder, ties to larger base · investment +0.02 · fee +0.03
call07_alloc v1 · rules v3.2 · LPA s.6.2.4.1 + SL §3.1 → 18,984,375.00 → recompute 6/6 → tied → fund controller · 2026-09-29 16:42

Lanvik is excused from the Halden Instruments investment under its side letter. It still pays its management fee.

Fictional fund, investors and investment. The +0.01 marks show where residual cents were placed by the stated rounding rule.

US documents say capital call; UK and EU documents, and the ILPA Model LPA, say drawdown notice.

01 / The work today

One call, several desks, one due date

A call starts with an investment closing or a fee date and ends when every investor's wire is on the books. Titles vary by firm; these are the ones the sources use. The notice period comes from your LPA, and many set at least ten business days.

  1. 1CFO or controllerSets the funding need from an investment committee approval, a management fee date or fund expenses, and decides whether to draw the subscription line first.
  2. 2Fund accountant at the administratorSplits the call by purpose: remaining commitments for a new investment, sharing percentages for a follow-on, commitments for expenses, and a per-investor fee.
  3. 3Controller or CFOReviews the allocation schedule against Schedule 1, the side-letter register, excuse elections and fee income subject to offset.
  4. 4Investor services and IRDraft each notice: cover letter, description letter and the ILPA template, with balances before and after the call and LPA references.
  5. 5GP signatoryApproves and releases notices by email or LP portal. An investor claiming excuse may still elect after the notice has gone.
  6. 6Treasury or fund accountantReads bank reports, matches each credit to an investor, chases shortfalls, then the administrator books contributions and updates capital accounts.
Inputs
  • Limited partnership agreement and amendments
  • Side letters (excuse, fee discount and notice-address clauses)
  • Schedule 1 (partner commitments) and the administrator's capital activity export
  • Excuse elections and officer certificates
  • Fee income records (transaction, advisory and monitoring fees) for offsets
  • Subsequent-closing data for equalisation
  • Bank reports (BAI2 or ISO 20022 statements) and incoming payment messages
Outputs
  • Per-investor allocation schedule
  • Capital call notices: cover letter, description letter, ILPA Capital Call & Distribution Template
  • Delivery record per investor (portal posting or email receipt)
  • Funding tracker: funded, short, unmatched, late
  • Revised notices, reminders and, where the GP decides, a Default Notice
  • Updated capital accounts and unfunded balances for the quarterly partners' capital account statement
02 / Where it breaks

Four places a call goes wrong

  1. 1

    One base for every purpose

    The ILPA Model LPA splits a new investment by the remaining commitments of investors who are not excused, a follow-on by sharing percentage and expenses by commitment. Use a flat percentage for all of them, or miss an excuse, and notices have to be reissued.

  2. 2

    Fee offsets applied wrongly

    In August 2025 the SEC settled with TZP Management Associates. The firm left interest on deferred fees out of its offsets and reduced multi-fund allocations twice, charging $502,041 in excess management fees across nine funds between 2018 and 2023.

  3. 3

    Wire instructions changed by email

    Business email compromise losses reported to the FBI's IC3 reached about $3.05bn in 2025, from 24,768 complaints. In one documented private equity case, the fraudster wrote from a genuinely compromised investor mailbox, not a spoofed one.

  4. 4

    Cash that cannot be placed

    Payer names rarely match an investor's legal name, legacy MT103 remittance text holds four lines of 35 characters, and banks on the route can deduct charges. Money sits unapplied, or an investor is chased for a shortfall a bank created.

See three playbooks on one platformCovenant Watch, Capital Call Flow and Loan Ops Ledger, running on the same record for a private credit fund.See the Private Credit platform
03 / How it runs

The model reads and drafts. Code computes. People sign.

The money path is a fixed workflow. The model reads your documents and drafts letters. Every amount comes from a calculation engine, and nothing leaves the fund or changes a bank record without a named person.

Fund terms, once and at each amendment
The model reads or draftsReads the LPA and side letters into typed parameters, each with its clause
Code computes or decidesChecks types and ranges; versions the parameter set
A person signsFund controller approves the parameters
Compute the call
The model reads or draftsNothing
Code computes or decidesSplits by purpose, removes excused investors, applies fee offsets and equalisation, rounds to a declared rule, sets the due date on a named holiday calendar
A person signsController or CFO signs the allocation trace
Draft notices
The model reads or draftsDrafts the cover and description letters from computed figures
Code computes or decidesFills every amount and the bank details from the locked master record; checks each figure in the letter against the engine
A person signsGP signatory releases, after maker and checker
Excuse after the notice
The model reads or draftsReads the investor's election into a typed record with its source
Code computes or decidesRecomputes, applies the reallocation cap, builds revised notices
A person signsGP approves the excuse and the revised notices
Match the cash
The model reads or draftsProposes an investor for payer text that names no one
Code computes or decidesMatches on amount and reference; reads the charges field before calling anything short
A person signsFund accountant confirms each proposed match
Late or short funding
The model reads or draftsDrafts the reminder
Code computes or decidesTracks the due date, cure period and default interest the LPA sets
A person signsGP decides on any Default Notice
A request to change bank details
The model reads or draftsRecognises the request and flags it
Code computes or decidesOpens a blocked case; the master record cannot be changed from here
A person signsCall-back to a known number, then a second approver
Never automated

No model computes an amount, releases a notice or changes bank details. Approving the call, releasing notices, resolving an ambiguous clause, confirming an uncertain cash match, and deciding that an investor is in default all stay with named people at your firm. Bank details change only after a call-back and a second approval.

Aldercove Growth Fund III, L.P. · Capital Call No. 07 · Receiptsdue 2026-10-15 · as of 2026-10-16 09:00 ET
source: BAI2 prior-day file, type 195 credits · USD
Wires matched to investors
Calder County Retirement SystemCALDER CTY RET SYS ALDERCOVE GF III CALL 07
FW26100901 · 2026-10-09
due 7,515,833.33 · received 7,515,833.33 · 0.00
Fundedmatch: exact
Lanvik Sovereign HoldingsLANVIK SOV HLDGS AGF3 C07
FW26101402 · 2026-10-14
due 194,791.67 · received 194,791.67 · 0.00
Fundedmatch: exact
Northfield University EndowmentNORTHFIELD UNIV END CALL 07
IN26101407 · 2026-10-14
charges 25.00 (legacy 71F)
due 5,010,555.56 · received 5,010,530.56 · −25.00
Short, explainedmatch: exactintermediary charge; fund accountant decides whether to request 25.00
Tamsin Mutual InsuranceINV 88213 TMI
FW26101503 · 2026-10-15
due 3,131,597.23 · received 3,131,597.23 · 0.00
Awaiting confirmationmatch: proposedpayer text does not name the LP; a person confirms
Harlow FoundationHARLOW FDN ALDERCOVE III
FW26101305 · 2026-10-13
due 1,878,958.33 · received 1,878,958.33 · 0.00
Fundedmatch: exact
Ashgrove Family Officeno credit by due datedue 1,252,638.88 · received — · −1,252,638.88Latematch: —reminder drafted for IR to send
Due
18,984,375.00
Confirmed
14,600,113.89
Awaiting confirmation
3,131,597.23
Not received
1,252,638.88
Short
25.00
16,195,751583333,0,FW26100901,,CALDER CTY RET SYS ALDERCOVE GF III CALL 07 → 7,515,833.33 → exact → funded → fund accountant · 2026-10-09

Northfield is 25.00 short because a bank on the route took its charge. The shortfall is explained, not chased.

Nothing here puts an LP in default. A Default Notice is the GP's decision, and the cure period is set by the LPA. Fictional data.
04 / The evidence

Each line traced from clause to wire

For every call we keep the inputs, the allocation trace and the decisions, so any figure on any notice can be rebuilt without re-running a model. Registered advisers must keep written communications about receipts and disbursements of funds for five years; we treat notices and wire correspondence as within that scope, subject to your counsel.

Example evidence lineAldercove Growth Fund III · fictional
call07_alloc v1 · LPA s.6.2.4.1 + SL §3.1 · Northfield → 4,906,666.67 → recompute = engine; Σ lines = 18,984,375.00 → tied → fund controller · 2026-09-29 16:42 ET
Sourcecall07_alloc
Versionv1
LocatorLPA s.6.2.4.1 + SL §3.1 · Northfield
Value4,906,666.67
Testrecompute = engine; Σ lines = 18,984,375.00
Statustied
Approverfund controller
Timestamp2026-09-29 16:42 ET
One investor line's evidence, split into its parts. Fictional data.

Kept for every run

  • 01Input versions: LPA, amendments, side letters, Schedule 1 snapshot, rule-set version
  • 02The clause span behind each parameter
  • 03The allocation trace: base, share and rounding cents per investor
  • 04Approver identities and timestamps, maker and checker
  • 05Rendered notices with their hashes
  • 06Delivery proof: send time, portal posting, read or failure receipts
  • 07Bank records matched (BAI2 16 and 88 lines, payment message references)
  • 08Each match decision and who confirmed it
Thirty minutes with your controller

We take one call from LPA clause to matched wire, and tell you what it would take to build.

Book a mapping session
05 / How it is built

A fixed workflow with the model at the edges

Capital calls move money, so the core is deterministic code with unit tests, not a model. The model does the reading and drafting that code cannot, and hands over typed records that code checks. There is no agent in the send path: sending, releasing and paying run only from a person's approval.

Harness anatomy
Model
01 · pinned snapshot
02 Instructions
versioned prompts and rubrics, one per release
03 Tools
few, namespaced, each rated read / propose / execute
04 Retrieval and context
the clauses and ledger rows this step needs, just in time
05 State
a run ledger per case, never the chat history
06 Validators
schema, range, units, and does the cited span support it
07 Deterministic engines
ratios, allocations, tie-outs, limit tests: unit-tested code
08 Orchestration
workflow code; any loop has step, time and cost caps
09 Human review
named approvers; four-eyes wherever money moves
10 Observability — every span records model, prompt version, tokens, latency, cost
11 Eval suites — golden set, regression, capability and red-team cases, run on every change
12 Cost and latency budgets per run
13 Permissions — read · propose · execute
The pinned model sits inside twelve layers that instruct, constrain, check and record it.

Harness

  • Workflow, not agent. Predefined code paths suit well-defined tasks that need to be predictable; a call is one. The model never chooses the next step.
  • Deterministic allocation engine. Purpose-based allocation, excuse exclusion and capped reallocation, fee and offset arithmetic, equalisation, default interest, rounding and due dates, each rule linked to the clause it implements.
  • Drafting chain. The model writes cover and description letters around figures the engine has already fixed; a check confirms every number in the letter matches the engine.
  • Human gates. Parameters, the call pack, release and any bank-detail change each have a named approver. The harness counts as a maker, so a person is always the checker.

Data and integrations

  • LPAs and amendments as executed PDFs, often scanned, plus DOCX drafts; side letters as per-investor PDFs.
  • Schedule 1 and the administrator's investor register as CSV or XLSX exports.
  • Capital activity from the administrator's partnership accounting system; the ILPA Capital Call & Distribution Template in Excel, which ILPA recommends over PDF.
  • Bank reporting as BAI2 files (16 transaction and 88 continuation records) or ISO 20022 statements, field mapping confirmed per bank.
  • Incoming payments: cross-border Swift payments have used ISO 20022 (pacs.008) since 22 November 2025; Fedwire completed its ISO 20022 migration in July 2025. Payer text is still free text.
  • Notice delivery by LP portal or email, with delivery receipts; e-signed records kept accurate, accessible and reproducible.

What is hard for machines, and what we do about it

Hard

One notice can mix four allocation bases, and "remaining commitment" depends on contributions, recallable returns and equalisation.

We

Tag each line with its purpose, apply that purpose's base rule, and carry the definition chain as versioned parameters with clause references.

Hard

Arithmetic written out by a language model is unreliable. Having the model write a program instead improved accuracy by about 12% on average across eight maths and finance datasets (Program of Thoughts, Codex, 2022).

We

Keep every amount in decimal code. The model never produces a figure that reaches a notice.

Hard

Side letters override the LPA for one investor, and an excuse can arrive up to five business days after the notice under the Model LPA.

We

Hold side-letter terms per investor, and run a revised-notice path that recomputes within the reallocation cap.

Hard

No public convention exists for rounding a pro-rata split to the cent.

We

Read the rule from your LPA or administrator policy, allocate the residual cents by a stated method, and show each investor's rounding cents.

Hard

Payer text is short and rarely names the investor, and charges can be deducted before the funds arrive.

We

Match on amount and reference first; the model only proposes candidates for free text, and a person confirms them.

How we know it works

  • Allocation, penny-exact. On the golden set, the investor lines must sum to the call with 0.00 variance, each line must equal an independent recompute, no investor is asked for more than its remaining commitment, and reallocation stays within the cap. There is no tolerance band for money lines.
  • Golden set. At least one case each of: pure investment, mixed purpose, excuse before the notice, excuse after it, subsequent-close equalisation, recyclable distribution, mid-quarter transfer, multi-currency, fee offset with carry-forward, default with reallocation, and a holiday-shifted due date.
  • Term extraction. Recall of excuse and economic clauses against a register built by your lawyers, with the threshold agreed with you.
  • Cash matching. Wrong-investor automatic matches must be zero; we also report the match rate by due date and time to resolve exceptions.
  • Release gate and shadow run. Each fortnightly release passes the regression suite first. Before go-live the workflow runs alongside your current process, which stays authoritative, and every disagreement is logged with its cause.
How an engagement runs
Assess · 2 weeks
diagnostic
1 Discovery, baseline
cycle time and error rate from the firm's own logs
2 Golden set
real cases, two labellers, agreement measured
Build · 6–12 weeks · release every fortnight
shadow run
R1 · R2 · R3 · R4 · R5 · R6
3 Prototype
a thin slice sets the ceiling
4 Error analysis
read traces, count failures
5 Eval-gated releases
regression suite must pass
6 Shadow run
incumbent stays in charge; disagreements logged
7 Acceptance
owner signs thresholds and a stated sampling plan
acceptance
Run · ongoing
in production
8 Staged rollout
one fund or desk first
9–10 Monitoring, drift
overrides, cost, re-runs
11 Model migration
regress, shadow, canary
A two-week assessment, a build released every fortnight with a shadow run, then production.

Controls and security

  • Three tool tiers. Read, propose and execute. Execute tools such as releasing a notice are not exposed to the model; they run from the approval screen under the approver's identity.
  • Bank details: call-back only. A document or email can never change standing instructions. A request opens a blocked case, verified by call-back to a number already on file and approved by a second person.
  • Untrusted text stays data. Investor emails, side letters and payer text are read by a component with no write tools and no network access, and only typed fields leave it. No prompt-injection defence is fool-proof, so actions never depend on document text.
  • Records. Each run stores inputs, prompt version, model version, outputs and reviewer decisions.
Capital Call Flow · harness · tool permissions
What the model may touch, and what only a person can do
docs.read_lpa_side_lettersreadCalled byQuarantined reader (model)no write tools, no network egress; returns typed parameters with clause spansApproval before effectFund controller approves the parameter set
bank.read_statementreadCalled byWorkflow codeBAI2 or ISO 20022 statement fileApproval before effect—
allocation.computeengineCalled byWorkflow code onlydecimal arithmetic; the model cannot call it or change its inputsApproval before effectController or CFO signs the allocation trace
notice.create_draftproposeCalled byModel drafts the letters; code fills every amountbank details come from the locked master recordApproval before effect—
cashmatch.proposeproposeCalled byModel, for free-text payer referencesexact matches on amount and reference are made by codeApproval before effectFund accountant confirms each proposal
notice.releaseexecuteCalled byA person, from the approval screenruns under the approver's identity, not the model'sApproval before effectMaker and checker; GP signatory releases
ssi.change_bank_detailsnot exposedCalled byA person only, out of bandno path from a document, email or model outputApproval before effectCall-back to a known number, then a second approver
When an email asks for new wire instructions
Untrusted input
Email to IR, from a real LP address: “Please use our new account for Call 07.”
Quarantined reader
Reads it as data. No tools, no egress.
intent: bank_detail_change
lp: LP-06 · src: msg 4471 · span l.3–4
Workflow code
Opens a blocked case. The master record is not changed; notices keep the existing instructions.
Two named people
Call-back to the number already on file, then a second approver. Only then is the record changed.
msg 4471 · inbound · l.3–4 → bank_detail_change (LP-06) → blocked; call-back task opened → open → treasury lead · 2026-10-13 10:05

The model can read a request to change bank details. It has no tool that could make the change.

Tool names, tiers and approvals for this playbook. Fictional example.
How we buildThe harness, evaluation suites and controls behind every playbookAI Engineering
06 / Rules

The rules around a call, as of 28 September 2026

  1. SEC Private Fund Adviser Rules vacatedNo SEC-mandated quarterly fee statement; your LPA and ILPA-style reporting set what investors receive.
  2. Fedwire Funds Service completes ISO 20022 migrationUS wires carry structured data; investors' payer text is still free text.
  3. SEC order against TZP Management AssociatesFee offsets must follow the LPA as written; $502,041 in excess fees disgorged.
  4. ILPA Capital Call & Distribution Template v2.0Voluntary guidance. First delivery expected Q1 2027; Excel or digital, not PDF.
  5. Swift ends MT/ISO 20022 coexistence for cross-border paymentsIncoming payments arrive as pacs.008; MT103 senders are converted by Swift.
  6. AIFMD II transposition deadline (EU)New disclosure of fees, charges and expenses allocated to the fund.

Notice periods, excuse rights and default remedies are contractual. They come from your LPA and side letters, not from a regulation.

Terms

Capital call / drawdown notice
Notice requiring investors to contribute part of their commitment. US: capital call. UK/EU and the ILPA Model LPA: drawdown notice.
Commitment
The amount an investor has contractually agreed to fund over the fund's life.
Remaining commitment / unfunded commitment
Commitment not yet called, adjusted for recallable returns. "Remaining Commitment" is the Model LPA term; "Unfunded Commitment" is the ILPA template term.
Due date
The date the investor's wire must arrive; set by the LPA, often at least ten business days after the notice.
Business day
A day banks are open in the jurisdictions the LPA names. It drives the due-date arithmetic.
Sharing percentage
An investor's share of the capital used for a specific investment; the base for follow-ons.
Excuse right / excused investor
A right, in the LPA or a side letter, not to fund a particular investment. Excused investors still pay fees and expenses.
Reallocation cap
The limit on extra amounts other investors can be asked for when one is excused or defaults; a bracketed [50]% in the Model LPA.
Management fee offset
Reduction of the management fee by transaction, advisory or monitoring fees the manager receives from portfolio companies.
Equalisation payment (US: equalization)
Catch-up contribution by an investor admitted at a later closing, as if it had joined at the first.
Default Notice / Defaulting Partner
Formal notice of a missed contribution; the investor is in default only after the LPA's cure period.
Call-back verification
Confirming a change to wire instructions by phone, to a number already on file.

Recently updated

  • Excuse rights applied at calculation, and re-applied if an LP elects after the notice
  • Research refreshed 28 September 2026: ILPA's September 2025 template and Swift's move to ISO 20022 payment messages now reflected on this page.

Questions

No. It reads the administrator's exports and your fund documents. It can run as an independent recompute of the administrator's split or produce the split for the administrator to book; we agree which in the mapping session.

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Bring one past call. We will trace it.

Thirty minutes with your controller: we take one call from LPA clause to matched wire, and tell you what it would take to build.