Collect an unpaid client invoice without a lawyer
An overdue invoice collected or converted into an enforceable claim — the contract’s payment terms and late fees confirmed, a documented final demand served with a deadline, a mechanic’s or construction lien filed where the work qualifies and the deadline allows, and a small claims or court filing executed with the evidence file the judge needs.

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Who it's for
Freelancers, agencies, and trade contractors in the U.S. who are owed more than $2,500 on an invoice that is more than 60 days past the payment terms and whose client has stopped responding or refuses to pay.
About this playbook
You learn how to collect an unpaid invoice from a non-paying client by following a legal escalation ladder — from a professional demand letter to a mechanic’s lien to a small claims lawsuit and finally enforcing the judgment against the debtor. This guide covers every step a freelancer, agency, or trade contractor can take without hiring a lawyer: calculating what you are owed including contractual late fees and statutory interest, sending a formal demand that triggers payment or preserves your rights, filing a mechanic’s or construction lien if your work improved real property and the deadline allows, suing in small claims court when the demand fails, and collecting on the judgment once you win. It does not cover debts over your state’s small claims limit, arbitration clauses that mandate private resolution, cases already in active litigation, or strategies for dealing with bankrupt debtors. The path is designed for invoices over $2,500 that are more than 60 days past terms where the client has stopped responding or refuses to pay.
What you'll do, step by step
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Phase 1: Assess your claim and gather what you need
0/5Review your contract and gather every piece of evidence you will need before making contact. Calculate the full amount the client owes including contractual late fees and statutory interest. Verify the client’s legal identity for court papers and confirm that your claim fits the small claims limit and lien deadlines in your state.
- 30 min
- 45 min
- 30 min
- 30 min
Phase 2: Send a formal demand letter
3 stepsPhase 3: File a mechanic’s or construction lien
4 stepsPhase 4: File a small claims lawsuit
4 stepsPhase 5: Attend the hearing and obtain a judgment
3 stepsPhase 6: Enforce the judgment and collect what you are owed
4 stepsDetails
What you need first
An active signed contract or agreed terms of service with the client, dated invoices documenting the work completed and amount due, proof that the work was delivered or accepted by the client, and the client’s legal name and business or residential address. No prior collection agency engagement or attorney representation on this same debt.
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About the creator
Playbooks about clients, contracts and independent income, written to be ticked off: what to prepare, what to do, in what order.
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