You've blocked out three weeks for a client's project. You've turned down two other inquiries because your calendar was full. A week in, the client emails: "Actually, we're going in a different direction — thanks anyway." Without a kill fee clause, you have no contractual basis to collect anything beyond what you've already invoiced. With one, you have a specific, enforceable number to point to.
A kill fee — sometimes called a cancellation fee — is one of the most underused protections in freelance contracts. Here's what it is, how much is standard, and exact language you can drop into your next agreement.
Kill Fee Calculator
Estimate a fair kill fee based on the total project value and how far along the work was when it got canceled. For a custom percentage and ready-to-copy contract clause, use the full Kill Fee Calculator.
What a Kill Fee Actually Covers
A kill fee compensates you for two things that a simple "pay for hours worked" clause doesn't: the time you blocked off that you can't get back, and the other work you turned down to take this project. If a client cancels after you've started, your unbilled hours aren't the only loss — your opportunity cost is real too, and a kill fee is how you recover some of it.
The term originated in magazine and publishing contracts, where a "kill fee" is paid to a writer when a commissioned piece is written but never published. Freelancers across design, development, consulting, and writing have since adopted the same concept for any project a client cancels partway through.
How Much Should You Charge?
There's no legal standard — a kill fee is purely a matter of contract negotiation. That said, industry norms cluster in a predictable range:
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| Project stage at cancellation | Typical kill fee |
|---|---|
| Before work begins (deposit only) | Deposit is non-refundable; no additional kill fee needed |
| Early stage (concepts, first draft, discovery) | 25% of total project value |
| Mid-project (revisions underway, more than half the work done) | 50% of total project value |
| Near completion or after final delivery | 75–100% of total project value |
Scaling the fee to project phase — rather than a single flat percentage — makes the clause easier for clients to accept upfront, since it clearly ties the fee to actual work completed rather than feeling like an arbitrary penalty.
Kill fee vs. deposit: they serve different purposes. A non-refundable deposit (typically 25–50% upfront) secures your time before work begins — you keep it regardless of what happens later. A kill fee compensates you for work already done and time already blocked once the project is underway. Using both together is common and not redundant: the deposit protects the start of the engagement, the kill fee protects the middle and end.
Kill Fee Contract Language You Can Use
The best kill fee clauses are specific about three things: the trigger (client-initiated cancellation), the calculation method (a percentage of the total contract value, tied to project phase), and the payment timeline. Vague language like "a reasonable cancellation fee" is difficult to enforce because "reasonable" invites a dispute. Here's a starting template:
Adjust the percentages and phase definitions to fit your own workflow — the key is making each threshold objective (a specific deliverable or milestone) rather than subjective (a vague sense of "how far along" the work is).
What If the Client Refuses to Pay the Kill Fee?
A written, specific kill fee clause in a signed contract is enforceable the same way any other contract term is. If a client refuses to pay:
- Send a written demand referencing the specific clause and the amount due.
- If your state has a "Freelance Isn't Free"-style law (see our Freelance Isn't Free Act guide for Illinois, New York, and California), mention it — clients who know about enhanced damages are often quicker to settle.
- For most freelance kill fee amounts, small claims court is fast, inexpensive, and doesn't require a lawyer. Check your state's small claims limit — our state-by-state late fee guides cover small claims caps for over two dozen states.
- For larger amounts, a demand letter from an attorney (often a flat fee of a few hundred dollars) frequently resolves the dispute before it reaches court, since the client knows litigation will cost more than simply paying.
Ready to add a kill fee clause to your next contract? Generate a complete freelance contract free, then customize the cancellation terms to match what's covered here.
Generate a Contract →When a Kill Fee Isn't Standard
Kill fees are most common in project-based work with a defined scope — design, development, consulting, writing. They're less common (and less necessary) for ongoing retainer work, since retainer agreements typically already include a notice period for termination instead. If you work primarily on retainer, a 30-day cancellation notice clause serves a similar protective purpose without needing a separate kill fee structure.
Not every client will push back on a kill fee clause — most reasonable clients understand that freelancers take on real risk when blocking out time for a project. If a prospective client refuses any cancellation protection at all, that's often a useful signal about how the rest of the working relationship might go.
Frequently Asked Questions
What is a kill fee in a freelance contract? +
A kill fee is a clause that requires a client to pay you a set amount — usually a percentage of the total project fee — if they cancel the project after you've already started work. It compensates you for time already spent and income you turned away to take the project, even though the work won't be finished.
How much should a kill fee be? +
Most freelance kill fees range from 25% to 50% of the total project value, scaled to how much work has been completed. A common structure is 25% if canceled before the first draft or milestone, 50% if canceled mid-project, and 100% (the full fee) if canceled after final delivery. The right number depends on your industry, how hard it would be to fill the lost time with other work, and how much you've already invested by the point of cancellation.
Can I actually enforce a kill fee if a client refuses to pay? +
Yes, as long as the kill fee is clearly written into a signed contract with a specific trigger, calculation method, and payment timeline. Vague language like a "reasonable cancellation fee" is hard to enforce because "reasonable" is subjective. A specific percentage tied to a specific project phase holds up well in small claims court, which handles most freelance kill fee disputes without needing a lawyer.