Late-payment terms that work: deposits, milestones, and what the law already gives you

Late payment is rarely a client's cash problem and almost always a terms problem. Freelancers who get paid on time tend to share a stack of habits: money changes hands before work starts, the payment schedule is written down, and the remedies for lateness were agreed before anyone was late. None of it requires aggression — just terms that were designed to work, set up front when your leverage is highest.

The deposit: your seriousness filter

A deposit does two jobs. Financially, it covers your downside if the relationship fails. Behaviorally, it converts a conversation into a commitment — clients who pay deposits treat deadlines differently from clients who haven't. Common practice lands between 30% and 50% for project work, with 100% prepayment normal for small jobs. The number matters less than the rule: work starts when the deposit clears, stated without apology in the proposal. Freelancers' organizations teach exactly this — the Freelancers Union resource hub includes guides on getting paid on time and on asking for milestone payments.

Milestones: shrink the blast radius

Split any substantial project into 2–4 payments tied to visible progress: deposit, delivery of first phase, final handover. Two effects. Your maximum exposure at any moment is one milestone, not the whole fee. And a client who is slow on milestone two tells you everything three weeks before they would have told you at final invoice. Final payments shrink too: keeping the last tranche modest (not 50%) removes the client's incentive to litigate trivia at the end. Structure milestones to match the fixed-price scope — payment schedule and scope boundaries are one document.

What official guidance actually says

You are not relying on politeness. Two examples of published, official rules (both verified as of the date above):

• United Kingdom. GOV.UK's late commercial payments guidance explains that business-to-business debts count as late 30 days after invoice or delivery if no date was agreed, and that agreed terms should normally sit within 30 days (public authorities) or 60 days (businesses). The companion page on charging interest defines statutory interest as 8% plus the Bank of England base rate, under the Late Payment of Commercial Debts (Interest) Act 1998, plus fixed debt-recovery costs.
• New York. The city's Freelance Isn't Free Act (2017), with a statewide successor, requires written contracts for covered work and payment within 30 days of completion when no date is specified; enforcement runs through the city's consumer protection agency. Freelancers Union's resources cover the campaign and filing process.

In the United States more broadly there is no single federal late-payment rule for freelancers — terms are mostly what your contract says, which is the strongest argument for writing them. The U.S. Small Business Administration's local assistance page points to free counseling (SCORE mentors, Small Business Development Centers) that routinely helps with collections and contract questions. Whatever your country: check your own jurisdiction's rules — this article is education, not legal advice.

Terms that prevent the chase

1. Payment window in days, not adjectives. "Net 14 from invoice date" beats "promptly".
2. Late consequence in the contract. Interest, work pause on retainer (retainers explained), or referral to collections — stated where the client signed.
3. Invoice hygiene. PO numbers, correct entity names, stated due dates. A surprising share of "late payments" is invoices stuck in client admin.
4. A reminder rhythm. Polite reminder at due date, firmer at +7, escalation at +30. Automatable — which is where invoicing software genuinely earns its fee.

Related reading

• Quoting fixed-price projects safely — the scope side of the same agreement
• Retainers explained — billing recurring work in advance
• Freelance taxes: setting money aside — what to do once the money arrives