AI life tool · free to try · Pro unlimited

Payment demand / unpaid invoice letter

Friendly reminder → firm follow-up → final notice. Clear amounts, dates, and next steps — professional, not unhinged.

Research-informed structure Draft autosaved on this device Copy · print · download Not legal advice

1Pick stageFriendly, firm, final, or personal.

2Amount + datesInvoice #, due date, new deadline, pay method.

3Send once cleanlyAttach invoice; log delivery; don’t spam.

1 · Mode 2 · Facts 3 · Letter

Build your letter

Draft saved

Letter mode

Friendly reminderAssume good intent. Restate invoice #, amount, original due date, and a simple pay-by date. Attach the invoice. Short and warm wins first contact.

Brief strength0%

Add a few key facts to unlock a strong draft.

Your name / business (optional)

Addressed to (optional)

Who owes you

Amount owed

Invoice / reference

Original due date

Prior reminders

New pay-by date

How to pay

If unpaid (optional)

Situation details (facts, dates, amounts)

0 characters · Use real dates and amounts only — leave blanks if you do not know.

Shortcut Ctrl+Enter · Autosaves as you type

Not legal, medical, or financial advice. Review, personalize, and verify deadlines for your state and institution before sending. The AI will not invent account numbers, diagnoses, or statutes.

Your letter

Drafting with care…

Using structured facts — not generic filler

Your letter will appear here.

1. Pick a mode
2. Fill facts (or load an example)
3. Hit Generate

Paper trail

The letter is half the job. Tap items as you finish them — progress saves on this device.

Invoice PDF attached or linked
Contract / SOW if it exists
Prior reminder emails saved
One clear pay-by date in the letter
Decide next step if ignored — state only what you will actually do
Log delivery (email read receipt, certified mail, etc.)

What actually works

Tone ladder

Friendly → firm → final. Jumping straight to threats burns bridges and can look bad if you later need a judge. Match mode to how many prior contacts you already made.

One clear ask

Every demand letter needs amount, reference, original due date, and a new pay-by date. Ambiguity is why invoices age.

Only real next steps

Never invent lawsuits, “collections tomorrow,” or criminal claims. State only actions you are willing and able to take.

Keep the trail

Save invoices, SOWs, and each reminder. Small claims and collections start with documents, not volume of anger.

FAQ

Will this guarantee payment?

No. A clear paper trail improves odds and prepares you if you escalate.

Should I use certified mail?

Useful for final notices and larger amounts. Email is fine for friendly reminders if that is how you already work.

Late fees?

Only charge late fees if your contract or invoice terms allow them. Don’t invent penalties.

Is this legal advice?

No. For large amounts or disputes, consult a lawyer or small-claims resources in your area.