Capital Raising Fees: Retainer vs Success Fee Explained

Capital raising fees come in three forms: a monthly retainer, a success fee on money raised, and sometimes equity. Most advisers combine two of them. Across firms, a September 2026 industry survey puts success fees at roughly 2% to 8% of capital raised and retainers at about $3,000 to $25,000 a month. This guide explains how each model works, what to negotiate, and the costs founders often miss.

Key takeaways

• Capital raising fees come in three forms: a monthly retainer, a success fee on money raised, and sometimes equity. Most advisers combine two.
• A September 2026 industry survey puts success fees at roughly 2% to 8% of capital raised and retainers at about $3,000 to $25,000 a month.
• No retainer is not automatically cheaper: success-only advisers tend to charge higher rates and favour rounds that close fast.
• A small retainer credited against the success fee is often the most balanced structure.
• The agreement decides the real cost: check the fee base, the tail period, exclusivity and when the fee falls due.

The three models behind capital raising fees

Monthly retainer

A retainer is a fixed fee paid each month, whether or not you close. It pays for the work: positioning, deck and model reviews, investor targeting and process management. The Waveup fee survey gives a range of about $3,000 to $25,000 a month for startup fundraising consultants, usually for three to six months. Investment banks working on larger deals charge more.

A retainer is not a bad sign in itself. Good advisers turn down work, and a retainer means they are paid to be selective with their time. The risk is paying for months of activity with no clear deliverables.

Success fee

A success fee is a percentage of the capital you raise, paid at close. It aligns the adviser with your outcome: no round, no fee. The same survey gives a general range of about 2% to 8%, with smaller rounds at the higher end.

Some advisers use a sliding scale. The best-known is the Lehman formula: 5% of the first $1 million, 4% of the second, 3% of the third, 2% of the fourth and 1% above that. A later variant, the "double Lehman," charges 10%, 8%, 6% and 4% on the first four millions, then 2%, as Wikipedia's summary of the Lehman formula explains. It is more common in M&A than in startup rounds, but you will see it in proposals.

Equity

Some advisers take shares, alone or alongside a smaller cash fee. Equity is cheap today and expensive later if the company does well. For reference, Carta reports that the median equity grant to pre-seed advisers in 2025 was 0.24%, with 64% of advisers receiving less than 0.3%. That data covers advisers in general, not fundraising advisers specifically, but it is a useful anchor.

Fundraising advisor with no retainer: is it better?

A fundraising advisor with no retainer sounds safer. You only pay if money arrives. In practice it has trade-offs.

• Selection bias. Success-only advisers must pick deals that close quickly. If your round is harder, they may deprioritise you.
• Higher rates. The adviser carries the risk of failure, so success-only percentages tend to be higher.
• Pressure to close. An adviser paid only at close has a reason to push you towards any acceptable term sheet, not the best one.

A small retainer plus a success fee is often the most balanced structure. Ask for the retainer to be credited against the success fee if you close. Then you pay for the work once, not twice.

Worked example: what a $2 million seed round really costs

Here is how three proposals compare on the same raise. The rates are illustrations within the published ranges, not quotes.

Proposal A: retainer plus success fee. $5,000 a month for four months, plus 4%, with the retainer credited.

• Success fee: 4% × $2,000,000 = $80,000
• Retainer paid: 4 × $5,000 = $20,000, credited against the fee
• Total if you close: $80,000. If you don't close: $20,000.

Proposal B: no retainer, flat success fee. 6% of capital raised.

• Total if you close: 6% × $2,000,000 = $120,000. If you don't close: $0.

Proposal C: double Lehman, no retainer.

• 10% × $1,000,000 = $100,000
• 8% × $1,000,000 = $80,000
• Total if you close: $180,000, or 9% of the round.

The cheapest proposal if you close is A. The cheapest if you fail is B. Proposal C looks like a standard formula but costs more than twice as much as A. Always calculate both outcomes and divide the total by the round size. That one percentage makes proposals comparable.

Finder's fees for raising capital: the legal risk

A finder's fee is a payment to someone who introduces you to an investor, usually a percentage of what that investor puts in. It is the most informal version of a success fee, and the riskiest.

In the US, people who are paid per transaction to solicit investors may need to be registered as brokers. A January 2026 analysis by Harris Sliwoski notes that transaction-based compensation is "a major warning sign." It also warns that investors may claim a right to unwind their investment. The SEC proposed an exemption for finders in 2020, but the same analysis states that "that proposal was never adopted."

Other markets regulate the same activity. In the UK, the FCA says corporate finance firms typically need permissions for advising on investments and arranging deals in investments. In the DIFC, the DFSA states that "a person cannot carry on a Financial Service in or from the DIFC unless the person holds a licence from the DFSA," according to its guidance on unauthorised business.

The practical rule is simple. Before you agree to pay anyone a percentage for introductions, ask your lawyer whether that person can legally receive it where you and your investors are.

The startup funding consultant agreement: clauses to check

Fees are only part of the cost. The agreement decides what you actually pay. Check these clauses before you sign.

1. Fee base. Does the success fee apply to all capital raised, or only to investors the adviser introduced? Exclude existing investors and your own contacts by name.
2. Instruments covered. Do SAFEs, convertible notes, venture debt or grants trigger the fee? Agree a lower rate, or none, for non-equity money.
3. Tail period. Most agreements pay the adviser if an introduced investor invests within a set time after the contract ends. Agree a fixed period and a written list of introduced investors.
4. Exclusivity and term. Keep exclusive mandates short. Add a right to end the agreement if agreed milestones are missed.
5. Retainer credit. Write down that retainer payments are credited against the success fee.
6. Expenses. Cap travel and other costs, and require approval above a set amount.
7. Equity and warrants. If the adviser takes shares or warrants, state the class, the vesting and how the stake is valued.
8. Payment timing. The success fee should be due when funds arrive in your account, not when a term sheet is signed.

What are the hidden costs of startup fundraising?

Adviser fees are visible. Other capital raising fees are easier to miss.

• Your lawyers. Pilot's analysis of 9,059 transactions found average legal fees of just under $10,000 for a pre-seed round, about $17,000 for seed and nearly $40,000 for Series A. That data is US-based and from 2024.
• The investor's lawyers. In priced rounds, the company often pays the lead investor's legal fees up to a cap. Pilot quotes a typical clause capping them at $25,000 without prior agreement.
• Founder time. A raise can take months of the CEO's attention. Revenue, hiring and product work slow down. Plan for it.
• Dilution from fees in equity. Equity paid to advisers dilutes you alongside your new investors. Add it to your cap table model before you agree.
• Tail fees. A long tail period can mean paying an old adviser on a round they had little to do with.

How do you negotiate fundraising consultant fees?

• Ask for the fee as one number. Request the total cost at close and if you fail, as in the worked example.
• Trade retainer for a lower success fee. If you can afford a small retainer, ask for a lower percentage in return.
• Tier the success fee. A lower rate on money from investors you already know, a higher rate on new introductions.
• Link milestones to payments. Tie retainer months to agreed deliverables: materials ready, outreach started, first meetings held.
• Get the investor list in writing. It protects you on the tail and shows you who was approached.

If you want a second opinion on a proposal, see our advisory services, the full list of services or more guides in insights.

Next step

If you have an adviser proposal in front of you, run the two-outcome calculation above first. If it would help to talk it through, book a free 30-minute consult. We will tell you plainly whether the terms look fair and whether you need an adviser at all.

This article is general information, not legal, tax or investment advice.

Frequently asked questions

What are typical capital raising fees for a startup?

A September 2026 industry survey puts success fees at about 2% to 8% of capital raised and retainers at about $3,000 to $25,000 a month. Smaller rounds usually carry higher percentages. Many advisers combine a modest retainer with a success fee.

What is a typical success fee for a fundraising advisor?

Most fall within the 2% to 8% range above, depending on round size, firm type and whether there is a retainer. Success-only advisers tend to charge more because they carry the risk of failure. Check what money the fee applies to.

Is it legal to pay a finder's fee for raising capital?

It depends on where you, the finder and the investors are. In the US, transaction-based pay for soliciting investors can require broker registration, and the SEC's 2020 finder exemption was never adopted. Ask your lawyer before agreeing to any percentage-based introduction fee.

Should I give a fundraising adviser equity instead of cash?

Equity saves cash now but can cost far more later if the company grows. Carta reports a median 0.24% grant for pre-seed advisers in 2025. If you offer equity, use vesting and model the dilution first.

What is a tail period in a fundraising agreement?

A tail period lets the adviser earn a fee if an investor they introduced invests after the agreement ends. Keep it to a fixed period and limit it to a written list of introduced investors.