In short: Most unpaid invoices can be collected without a lawsuit or court. Clear written terms, same-day invoicing, scheduled reminders and a firm demand letter settle the large majority. Court, usually small claims, is the last rung of the ladder, not the first. This playbook gives you each step plus templates you can copy.
Small companies often end up lending money to bigger ones without meaning to. They deliver the work, send the invoice and wait 60, 90 or 120 days. Meanwhile, payroll is due Friday.
A lot of why businesses don't start, or why they fail, comes down to policy. Late payment is one of the clearest examples. A business can do everything right and still close because the money it earned shows up too late. Before you ever think about a lawyer, there's a lot you can do yourself.
Step 1: Put the terms in writing before the work starts
Most payment fights are really arguments about what was agreed. Write it down first. Your agreement, quote or order confirmation should include:
- The price, and what it does and doesn't include
- The deliverable, described clearly enough that both sides would agree it's done
- The due date, like "Net 15" or "due on delivery," not "upon approval"
- Late fees or interest, if your state allows them and the client agrees
- Who approves the invoice on their side, by name
- What happens with a dispute, such as paying the undisputed part on time
Get a signature or a written "approved" by email. That one step prevents more lawsuits than anything else in this article.
Step 2: Invoice the same day the work is done
Every day you wait to send the invoice is another day you wait to get paid. A proper invoice includes:
- Invoice number and date
- The client's purchase order number, if they use one
- What was delivered, matching the agreement
- The due date in plain words
- How to pay, with every option you accept
Many larger companies won't process an invoice without the right PO number or approver. Getting those details right is the difference between being paid on time and being stuck in a queue.
Step 3: Follow up on a schedule
Don't wait until you're angry. Put reminders on a calendar the day you send the invoice.
| When | What | Tone |
|---|---|---|
| 3 days before due | Friendly reminder email | Helpful |
| 1 day after due | Short email plus a phone call | Direct |
| 15 days late | Written past-due notice | Firm |
| 30 days late | Final notice with a deadline | Formal |
| After the deadline | Demand letter | Final |
Template: friendly reminder
Hi [Name], a quick reminder that invoice [#] for [work] is due on [date]. I've attached it again here. Let me know if you need anything from me to process it. Thanks.
Template: past due
Hi [Name], invoice [#] for $[amount] was due on [date] and is now [X] days past due. Could you confirm when payment will be sent? If there's a problem with the invoice, tell me and I'll fix it today.
Keep every message polite and keep a record. If this does end up in court, your calm paper trail is your best evidence.
Step 4: Send a final notice
If the reminders don't work, send a final notice with a specific deadline, usually 7 to 10 days.
Template: final notice
[Name], invoice [#] for $[amount], due [date], remains unpaid after reminders on [dates]. Please send payment in full by [deadline]. If payment isn't received by then, I'll need to take the next steps to collect, which may include a formal demand and a small claims filing.
Step 5: Send a demand letter
A demand letter is a short, factual letter that makes your case one last time. Many disputes end here, because it shows you're serious and organized.
Template: demand letter
[Date]
[Client name and address]
Re: Unpaid invoice [#]
On [date], [your business] delivered [work] under our agreement dated [date]. Invoice [#] for $[amount] was due on [date]. Despite reminders on [dates], it remains unpaid.
Please pay $[amount] by [deadline, usually 10 to 14 days]. If payment isn't received by then, I intend to file a claim in [county] small claims court to recover the amount owed, plus allowable costs.
I'd prefer to resolve this without court. If you believe any part of the invoice is wrong, contact me by [date].
[Your name, business, contact information]
Send it in a way you can prove, like certified mail plus email. Attach the agreement, the invoice and your reminder history.
Step 6: Know your court options
If the demand letter doesn't work, you have a few paths.
Small claims court
Small claims courts are built for smaller, simpler disputes, and many people represent themselves. Limits vary by state. In Florida, the Small Claims Rules apply to civil claims of up to $8,000, not counting costs, interest and attorney's fees (Florida Small Claims Rules). Check your own county clerk's website for filing fees and forms.
Mediation or arbitration
If your agreement requires mediation or arbitration, you'll usually have to go that route first. Mediation can also be faster and cheaper even when it isn't required.
A collections agency or an attorney
For larger balances, a collections agency or a business attorney may make sense. Ask about fees up front. Many collection agencies take a percentage of what they recover.
A lawsuit costs time and money even when you win. That's why steps 1 through 5 matter so much.
How long should getting paid take?
In private US business, payment terms are mostly whatever the contract says. That's why your written terms matter so much. But public rules give useful benchmarks.
- US federal agencies: under the Prompt Payment Act, federal agencies must pay bills on time and pay interest penalties when they pay late. The Treasury's guidance also says agencies should pay small businesses early when certain conditions are met (Bureau of the Fiscal Service).
- European Union: the Late Payment Directive says business-to-business payment periods shouldn't exceed 60 days unless expressly agreed and not grossly unfair to the creditor (EUR-Lex). Public authorities generally have to pay within 30 days, and creditors are entitled to late-payment interest plus at least €40 in recovery costs (European Commission).
If a large client asks for 120-day terms, it's fair to point out that public buyers in the US and Europe are expected to pay much faster.
Why is this a policy problem?
Because it's systemic, not personal. Long payment terms push small firms to borrow against money they've already earned. The Federal Reserve's 2026 Report on Employer Firms found that the most common reason small firms sought financing was to cover operating expenses, at 56% (Federal Reserve Banks). Some of that borrowing exists only because invoices are paid late.
▸ Why late payment is at the top of my list
Getting small sellers paid in days, not months, is one of the five positions I've published in my advisory work on SDG 8 & 9. It ties to SDG target 8.3, which calls for policies that support entrepreneurship and the growth of small businesses (UN). Prompt-payment rules for government contracts already exist in the US and Europe. I'd like to see the same thinking spread through private supply chains, with clear standard terms and real consequences for paying small suppliers late. It's one of the cheapest fixes there is, and it helps the most people.
FAQ: getting paid without a lawsuit
How do I get a client to pay an overdue invoice?
Follow up on a schedule: a reminder before the due date, a call after it, a written past-due notice and then a final notice with a deadline.
What should a demand letter include?
What you delivered, the amount owed, the original due date, your previous reminders, a final deadline and what you'll do if payment doesn't arrive.
What is the small claims limit in Florida?
The Florida Small Claims Rules apply to claims of up to $8,000, not counting costs, interest and attorney's fees.
Do I need a lawyer for small claims court?
Not always. Many people represent themselves in small claims, but rules vary by state, so check with your local clerk or get legal advice.
Can I charge interest on late invoices?
Often, if your agreement says so and your state's law allows it. Put it in writing before the work starts.
Clear terms prevent more lawsuits than lawyers do.
What is Robert Nikic's view on getting paid without a lawsuit?
Robert Nikic's view is that most late payments can be solved without court through clear written terms, same-day invoicing, steady follow-up and a firm demand letter. He also argues that fairer payment norms would keep small businesses from carrying their customers' debt.
This article is general information, not legal advice.
Related reading: Robert Nikic on Payment Laws: A Founder's First Legal Hurdle · Robert Nikic on Business Law and Policy: Build the Rails · Robert Nikic on Trademark Lawsuits
