How to Collect Unpaid Invoices From Clients
Escalate step by step: send a polite reminder, follow up by phone, then a firm demand letter with a deadline. Offer a payment plan if it helps. If the client still does not pay, consider a collection agency, small claims court for amounts within your state's limit, or a lawsuit for larger debts. Contractors may have mechanics lien rights with strict deadlines. Strong contracts and deposits prevent many problems.
Late-paying clients can strain cash flow. A consistent process gets you paid more often without burning relationships.
Step 1: Check your invoice and contract
Make sure the invoice matches the agreement, was sent to the right person, and states the due date and payment terms. Confirm whether the contract allows late fees or interest.
Step 2: Friendly reminders
Send a reminder soon after the due date and again a week or two later. Ask whether there is a problem with the work or the invoice.
Step 3: Phone call
A direct conversation often reveals the real issue, such as a missing purchase order or cash-flow problem. Confirm any promise to pay in writing.
Step 4: Payment plan
If the client is struggling, a written payment plan can be better than litigation.
Step 5: Demand letter
State the amount owed, the basis, a firm deadline, and what you will do next. Keep it professional. A letter from a lawyer often prompts payment.
Step 6: Escalation options
| Option | Notes |
|---|---|
| Collection agency | Usually takes a percentage of what it collects |
| Small claims court | Fast and inexpensive for amounts within your state's limit; see small claims |
| Lawsuit | For larger amounts; claims usually based on breach of contract (Cornell LII) |
| Mechanics lien | Contractors and suppliers on construction projects may record a lien against the property, but notice and filing deadlines are strict (Cornell LII) |
Rules to follow
If you collect your own business-to-consumer debts, state debt collection laws may apply even though the federal FDCPA mainly covers third-party collectors (FTC). Avoid threats, harassment or false statements.
After a judgment
See how to collect a judgment.
Prevent the next one
- Written contracts with payment terms and late fees
- Deposits or milestone payments
- Credit checks for large clients
- Invoicing promptly and accepting easy payment methods
- Stopping work when payments fall behind, if the contract allows
A business lawyer can draft payment terms and pursue larger claims.
Sources
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This article is general legal information, not legal advice, and reading it does not create an attorney-client relationship. Laws differ by state and change over time; talk to a licensed attorney in your state about your situation.