Financial Due Diligence for Startups: Investor Checklist

Financial due diligence is the part of a venture investor's pre-investment review that verifies a startup's financial claims: that revenue is real and recognized correctly, that cash and burn match the deck, that the cap table matches the legal record, and that no hidden liabilities change the deal. The goal is usually not an audit but confirming the facts the valuation rests on.

Definition: Financial due diligence is an investor's pre-investment verification of a startup's revenue, cohorts, unit economics, cash and burn, ownership, and liabilities against source records rather than against the pitch.

The deck is the founder's best case. The bank statements, the billing export and the signed documents are the record. Diligence is the work of checking one against the other.

At seed that can take a few days with a data room and three calls; at Series A and beyond it often includes a third-party review. Either way, you're looking for anything that should change the price, the terms or the decision. This guide is for the investor running the review; founders preparing for one may prefer the due diligence checklist.

What financial due diligence covers

Cooley GO's sample VC due diligence request list, a useful starting template, organizes requests into nine sections, from board minutes and charter documents to capital stock, debt financing, and other agreements. The explicitly financial requests include the most recent audited statements and latest unaudited monthly statements, all debt instruments and credit agreements including lease financing, guarantees of third-party obligations, shareholder and optionee lists with issuance dates and prices, vesting schedules, accrued salary and paid time off, and business plans or offering memoranda.

We find it easier to boil investor-side financial diligence down to five questions:

1. Is the revenue real? Bookings, billings, recognized revenue, and cash collected are four different numbers.
2. Is the cash real, and how fast is it leaving? Bank balances, monthly net burn, and runway.
3. Is the ownership real? Cap table versus signed documents, including every SAFE and note.
4. What does the company owe? Debt, deferred revenue obligations, accrued payroll, taxes, and contingent liabilities.
5. Do the projections follow from the history? Growth, margins, and hiring assumptions tied to what has already happened.

This article covers the financial workstream only. The full process, including team, market, product, references, and legal, is in the venture capital due diligence guide. Founders on the other side of the table can prepare with the data room checklist.

Step 1: reconcile revenue

Start with the revenue the founder presented, and rebuild it from source data.

• Pull the invoice or transaction ledger from the billing system (Stripe, QuickBooks, the ERP) and total it by month. Compare to the deck.
• Separate ARR from revenue. Annual recurring revenue is a run-rate metric, not GAAP revenue. Ask how the company defines it: monthly recurring revenue times 12, contracted annual value, or something looser.
• Check recognition. An annual contract paid upfront is cash now and revenue over twelve months. Companies that book the full invoice as revenue in month one overstate growth.
• Look at concentration. If two customers are 60 percent of revenue, ask for both contracts and call both customers.
• Test churn. Rebuild net and gross revenue retention from the customer-level ledger rather than accepting the summary.
• Confirm cash collected. Match invoices to bank deposits for a sample of the largest customers.

The output is a reconciled revenue schedule with every difference explained. A gap of a few percent is common. A gap of 30 percent is a conversation.

Step 2: verify cash, burn, and runway

Investors typically ask for read-only access to bank accounts or three months of statements, plus the monthly P&L and cash flow.

• Net burn is cash out minus cash in per month. It's more reliable computed from bank data than from the model.
• Runway is cash divided by net burn, adjusted for any known step changes (a hire, a lease, an annual contract renewal).
• Gross margin. Confirm cost of revenue includes hosting, third-party API costs, and support headcount. For AI products, model inference belongs there too, as our guide to AI gross margins and inference costs explains.
• One-time items. Grants, tax credits, or deferred founder salary can flatter burn. Normalize them.

Runway shapes negotiating leverage, and it tells you the size of round the company actually needs, which may not be the size it's asking for.

Step 3: test unit economics and cohorts

Revenue can be real and still be uneconomic. One check is to rebuild the cohort table from the customer-level ledger: for each month of first purchase, what that cohort spent in month 1, month 6, month 12 and month 24.

We'd take a flat or rising cohort curve over a big headline growth rate. A curve that decays fast suggests the growth is being bought again every month.

Three efficiency benchmarks are worth computing yourself, with the source for each:

An illustrative worked example. A company burned $900K of net cash last quarter and added $600K of net new ARR, so its burn multiple is 1.5x, the top of the "great" band on the Craft Ventures scale. The customers it had a year ago paid $4.0M then and $4.4M now, so net revenue retention is 110 percent, in CRV's competitive band. A $12K annual contract at 80 percent gross margin throws off $9.6K of gross profit a year, so a $9K fully loaded acquisition cost pays back in about 11.3 months, inside Bessemer's SMB target.

Treat these as directional, not as gates. In our view, what matters most is that your numbers and the founder's agree, and that you can explain any gap.

Step 4: tie out the cap table

The cap table is a financial document as much as a legal one, and it's often where seed-stage surprises live. We tend to read it before the deck; here's our take on what the cap table tells you.

• Reconcile the spreadsheet or Carta ledger to the signed stock purchase agreements, SAFEs, convertible notes, option grants, and board consents that authorized them.
• Model every SAFE and note converting at the round you are pricing, including caps, discounts, and most-favored-nation clauses.
• Confirm the option pool size, what is granted versus unallocated, and whether the term sheet's pool increase is pre-money.
• Check that founder vesting exists and that any accelerated or fully vested founder stock is disclosed.
• Look for advisors, contractors, or early employees who were promised equity without paperwork.

Carta's State of Private Markets: 2025 in Review reported that median dilution on all rounds from seed through Series C fell from about 18 percent to about 16 percent over the year. Against that baseline, three uncapped SAFEs and a promised advisor grant can move real ownership by several points.

Step 5: find the liabilities

Cooley's request list asks for all debt instruments, credit agreements, and lease financing for a reason. At the seed stage the usual items are:

• Venture debt or revenue-based financing, including covenants and warrants.
• Credit cards and founder loans to the company.
• Deferred revenue: cash already collected for service not yet delivered, which is a real obligation.
• Accrued payroll, unpaid contractor invoices, and payroll tax status.
• Sales tax and state nexus exposure for companies selling across states.
• Customer contracts with refund, SLA credit, or termination-for-convenience terms.
• Pending or threatened litigation and any indemnities given to customers.

Then ask the plain question: what does the company owe anyone that isn't on the balance sheet? Founders usually know.

Step 6: stress the projections

A projection is only as useful as its connection to history. Take the model's assumptions (new customers per month, average contract value, churn, sales cycle, hires) and compare each to the last six months of actuals. Then run base, upside, and downside cases to see what has to be true for the plan to hold, and how much runway exists if it doesn't.

Market context helps set the downside. Carta's State of Private Markets report for Q1 2026 put the down round rate at 11.4 percent of new rounds, back to 2019 and 2020 levels and well below the 2023 peak of about 22 percent. That's still roughly one deal in nine, so a downside case with a flat or down next round is far from remote.

"But deep diligence kills good deals"

There's a real argument here. Seed rounds move fast, strong founders have options, and an investor who asks for 24 months of statements on a $1M round may simply lose the deal. We've made a version of this point ourselves about how extended due diligence became a liability for angel groups.

But Speed and depth aren't really opposites. Most of the checks above take hours, not weeks, if you know which ones matter at the stage. Our approach is to scale the work to the round: at seed, rebuild revenue, burn and the cap table and skip the rest; at Series A, run the full list.

Red flags in financial due diligence

• Revenue that cannot be rebuilt from the billing system.
• A cap table that does not match signed documents, or equity promised verbally.
• Burn in the bank data materially higher than burn in the deck.
• Deferred revenue counted as cash available to spend.
• Customer concentration above 50 percent with a contract that can be canceled on 30 days' notice.
• Unpaid payroll taxes.
• Related-party payments to a founder's other company.
• A refusal to provide bank statements or read-only system access.

Several of these are fixable before closing and become conditions in the term sheet. Two or three together? We'd usually pass.

A 25-item financial due diligence checklist

Request list 1. Monthly P&L, balance sheet, and cash flow for 24 months 2. Most recent audited or reviewed statements, if any 3. Bank statements for the last 3 months or read-only access 4. Billing system export by customer and month 5. Top 10 customer contracts 6. Cap table with all SAFEs, notes, options, and warrants 7. All debt and financing agreements 8. Tax filings and payroll tax status 9. Budget and 24-month projection model 10. Any prior investor updates or board decks

Tests to run 11. Rebuild monthly revenue from source data 12. Confirm revenue recognition policy 13. Compute customer concentration and retention 14. Calculate net burn from bank data 15. Calculate runway with and without planned hires 16. Rebuild gross margin with full cost of revenue 17. Model all convertibles into the priced round 18. Reconcile cap table to signed documents 19. List every liability, on and off balance sheet 20. Compare projection assumptions to trailing actuals

Calls to make 21. Two or three top customers 22. The company's bookkeeper or outsourced CFO 23. Any lender 24. A prior investor 25. The founder, with the reconciled numbers in hand

New investors learn this fastest by doing it next to someone. 1752vc's Emerging Angels program gives accredited investors a seat in a working fund's investment process for eight weeks, with live diligence calls and deal reviews on real companies, so the first revenue schedule you reconcile or SAFE stack you model is alongside people who do it every week. Findings feed the investment memo.

The bottom line

Financial diligence isn't about catching founders out. Most gaps are honest: a generous ARR definition, a forgotten advisor grant, burn that crept up. The job is to find them before they're priced into your ownership.

The pitch sets the price.

The ledger decides whether it holds.

Key takeaways

• Financial due diligence verifies revenue, cash and burn, the cap table, liabilities, and projections before an investment; it confirms facts rather than auditing the company.
• It helps to rebuild revenue from the billing system and burn from bank data, not from the deck, and to rebuild cohorts from the customer-level ledger.
• Tying the cap table to signed documents and modeling every SAFE and note into the round catches most ownership surprises.
• Efficiency benchmarks are more useful with named sources: the Craft Ventures burn multiple bands, CRV's 100 to 120 percent net revenue retention range, and Bessemer's 12 to 24 month CAC payback targets.
• Carta's Q1 2026 data shows 11.4 percent of rounds were down rounds, so a flat or down next round arguably belongs in the downside case.
• Many red flags are fixable as closing conditions; several together are often a reason to pass.

Frequently asked questions

What is financial due diligence in venture capital?

Financial due diligence is the investor's review of a startup's financial records to confirm that revenue, cash, burn, ownership, and liabilities are what the founders represented. It covers rebuilding revenue from source data, verifying bank balances and burn, reconciling the cap table, listing debts and obligations, and testing projections against history.

What documents do investors ask for in financial due diligence?

Typical requests include monthly financial statements for two years, bank statements, a billing system export, top customer contracts, a full cap table with all convertibles, debt agreements, tax and payroll filings, and the projection model. Cooley GO's sample VC due diligence request list is a useful starting template.

How long does financial due diligence take for a startup?

At seed, a focused financial review usually takes a few days to two weeks once the data room is complete. Series A and later reviews often take two to four weeks and may include a third-party quality of earnings report, depending on the size of the round and the complexity of the business.

What is a good burn multiple for a startup?

Burn multiple is net burn divided by net new ARR over the same period. On the scale David Sacks of Craft Ventures published in 2020, under 1x is amazing, 1x to 1.5x great, 1.5x to 2x good, 2x to 3x suspect, and above 3x bad. Early-stage companies sit higher than later ones, so it helps to read the trend across quarters rather than a single number.

What are red flags in startup financial due diligence?

Common red flags include revenue that cannot be rebuilt from the billing system, a cap table that does not match signed documents, burn that is higher in the bank data than in the deck, unpaid payroll taxes, heavy customer concentration on cancelable contracts, and related-party payments. A refusal to share bank statements is itself a red flag.

Sources

• Cooley GO: Sample VC Due Diligence Request List (PDF)
• Cooley GO: Definition of Due Diligence
• Carta: State of Private Markets, Q1 2026
• Carta: State of Private Markets, 2025 in Review
• Craft Ventures: The Burn Multiple, by David Sacks
• CRV: Series A Metrics VCs Expect in 2026
• Bessemer Venture Partners: Scaling to $100 Million