📧
Business & Legal/Invoice Chaser

Invoice Chaser

Payment reminder email generator — from friendly nudge to final demand letter

3 TEMPLATES3 tone levelsLate fee calculatorCopy & downloadTemplate engine
Invoice chasing dashboard on a tablet — track unpaid invoices
Saved Invoice Chases· Auto-save on
▾
The CalculatorPage 1

Invoice details

Email preview

Fill in the invoice details or click Sample to generate a payment reminder email.

How to chase late payments

Days 1-7 (Friendly): A light touch. Assume they forgot. Keep it warm — most late payments are just oversight, not refusal.

Days 8-30 (Formal): Professional and clear. Reference the invoice terms, mention any late fees, and set expectations for payment timeline.

30+ days (Final demand): Firm, specific, and legally sound. State the total due (including late fees), give a deadline (7 business days), and mention potential escalation to collections or small claims court.

Data Source & Legal Disclaimer
Effective: 2026
Sources: Browser-side processing (no external API)

This tool runs 100% in your browser. All computation happens locally on your device — your input is never uploaded to any server. Results are for reference only.

See all data sources & update policy →
How it worksPage 2

How chasing late payments works — illustrated

Payment chasing follows a predictable escalation ladder: stay friendly while the invoice is only a few days overdue (most late payments are oversight, not refusal), get formal once it passes a week, and issue a final demand with a hard deadline once it crosses 30 days. If your invoice carries a late-fee percentage, that fee is added to the balance once, which the formal and final templates quote explicitly. The psychology matters too — the longer an invoice goes unpaid, the less likely it is to be paid, so the cadence exists to keep your debt fresh and your claim legally documented before you escalate to collections or small claims.

The 3-stage escalation ladder plus the accumulating late fee
Escalation: friendly → formal → final demandDays 1-7 · Friendly😊 warm nudgeassume it slipped throughDays 8-30 · Formal📋 reference termsapply late fee, set timeline30+ days · Final⚖️ 7-business-day deadlinethen collections / small claimsLate-fee math — 29 days overdue → Formal template appliesLate fee = $3,500 × 1.5% = $52.50Total due = $3,500 + $52.50 = $3,552.50Why escalate at all?Unpaid invoices decay fast — after 30 days the odds of full collection fall sharply, andeach formal step leaves a written trail that strengthens a later small-claims filing.

The example follows a $3,500 invoice that is 29 days overdue with a 1.5% late fee — past the friendly window, so the formal template applies and the fee has been added: $3,500 × 1.5% = $52.50, for a total due of $3,552.50. If it passes 30 days unpaid, the final-demand template gives the client 7 business days before escalation to collections or small claims.

Worked example

Jordan owns Smith Design Studio. Acme Corp's invoice INV-2026-042 for $3,500 was due June 1, 2026, and is now 29 days overdue. The invoice terms include a 1.5% late fee.

  1. Where are we?:29 days overdue → past the 1-7 day friendly window, so the Formal template is the right tone
  2. Late fee:$3,500 × 1.5% = $52.50 added to the balance per the invoice terms
  3. Total due:$3,500 + $52.50 = $3,552.50 — the formal email quotes this explicitly
  4. Next trigger:If Acme still has not paid at 30+ days, the Final-demand template gives 7 business days before collections or small claims
FAQ & detailsPage 3

Client hasn’t paid? Everything runs locally; nothing is uploaded.

FreeToolHub Invoice Chaser is a free browser-based tool — client hasn’t paid? No signup, no upload; everything runs locally in your browser.

About this tool

What is this tool?

Client hasn’t paid? Generate professional overdue payment emails in 3 escalation levels. Free.

3 tone levelsLate fee calculatorCopy & downloadTemplate engine

What Is Invoice Chaser?

Invoice Chaser is a free tool that generates professional payment reminder emails for overdue invoices. It addresses the common freelancer problem of not knowing how to word a payment chase email. The tool provides three escalating tone levels and includes a late fee calculator.

How to Chase Late Payments Effectively

Start with a friendly reminder (most late payments are oversights). If no response after a week, escalate to a formal email referencing the invoice terms. After 30 days, send a final demand letter with a specific deadline and mention of potential escalation. Always document your communication attempts.

The escalation ladder — reminder emails that actually get paid

Payment reminders work best as a scheduled ladder, not a single angry email. A workable cadence: a friendly nudge one day after the due date assuming an oversight; a firmer follow-up at day 7 restating the invoice number, amount, and original terms; a formal notice at day 14 that references the late-fee clause you both signed; and a final-demand letter at day 30 that states next steps — collections, small claims, or stopping work. Each step should quote the same three facts: invoice number, amount due, and days overdue, because accounts payable teams search their ledger by exactly those fields. Keep the tone businesslike even at the final step — hostility reads as desperation, while a calm reference to terms and dates reads as routine process. The generator writes all four stages for you, and the tone selector shifts wording from friendly to firm without touching the facts.

Frequently Asked Questions

What are the three escalation levels?

Level 1 (Friendly, 1-7 days late): A warm reminder assuming oversight. Level 2 (Formal, 8-30 days): Professional tone referencing invoice terms and late fees. Level 3 (Final demand, 30+ days): Firm tone with legal language, deadline, and mention of potential collection action.

Can I calculate late fees?

Yes. Enter a late fee percentage and the tool calculates the fee amount and total due including the fee. This is included in the formal and final demand email templates.

Is this legal advice?

No. The generated emails are templates for common business situations. They do not constitute legal advice. For serious disputes, consult a collections attorney.

What is a polite payment reminder email?

A polite reminder states the facts without accusation: the invoice number, the amount due, how many days past due it is, and a clear payment path. Most late payments are oversights, so the first message assumes good faith ('just a quick nudge in case this slipped through'). The generator writes that first-touch version in a friendly tone, and lets you escalate wording to firm or formal as the days overdue climb.

When should I send late payment reminders?

A workable cadence is a friendly nudge 1 day after the due date, a firmer follow-up at 7 days, a formal notice referencing your late-fee terms at 14 days, and a final demand at 30 days stating next steps. Each message should repeat the same three searchable facts — invoice number, amount, days overdue — because accounts payable teams locate invoices by those fields, not by your tone.

Can I charge a late fee on overdue invoices?

Only if your contract or invoice terms established one in advance — adding a fee after the fact is generally unenforceable. If your terms allow it, enter the percentage here and the generated email states the calculated fee plainly. Late-fee caps vary by state and by client type (B2B vs consumer), so check your jurisdiction and your signed terms before sending.

Does this work for freelancers and small businesses?

Yes — it is built for exactly that case. Enter your name, your business name, the client and invoice details, and pick a tone; the tool generates a ready-to-send reminder email you can copy into Gmail or Outlook. Everything runs locally in your browser, and your snapshots of common invoice setups are stored on your own device via IndexedDB.

Other names for this tool

This tool is also known by these tasks — each link opens the same tool with a focused guide:

Related tools

Joke of the Day
Sep 29

Why did the cookie go to the doctor?

Free core, no account

Keep the Free Edition Free

No signups, no data sold. Every tool is free to use — the free tier allows 5 downloads or saves per day, and the optional Pro plan ($7/mo, $59/yr) adds unlimited downloads, batch processing, white-label exports and an ad-free experience.

☕Support me on Ko-fi— support the free tier

100% of proceeds go towards hosting & building more free tools.