Legal & Enforcement

Letter of Demand Basics

A letter of demand is the formal turning point between informal reminders and recovery action — here's what it is and when to send one.

What you'll learn

  • Understand what a letter of demand is and is not
  • Know what a clear demand should contain
  • Judge how long to allow for a response
  • Recognise what happens if it is ignored

6 min read

What it is

A letter of demand is a formal written request for payment that sets a deadline and signals you are prepared to escalate. It is not a court document and it does not, by itself, start proceedings. Its power is partly practical and partly evidential: many overdue accounts are paid once the debtor sees that the creditor has moved from friendly reminders to a documented, time-bound demand.

A good demand is calm and factual. It restates the debt, attaches or references the relevant invoices, and makes clear that non-payment will have consequences. Aggression, threats, or inflated figures undermine it — and can expose you to complaint — so the tone should be firm but professional throughout.

What to include

  • the exact amount owed and the invoices it relates to;
  • the date the debt fell due;
  • a clear, reasonable deadline for payment;
  • how to pay, including account details;
  • the consequences of non-payment, stated factually.

Keep a copy of everything you send and note the method of delivery. That record may matter later if the matter proceeds.

After the deadline

If the deadline passes without payment or contact, the usual next step is to refer the matter to a commission-only recovery agency such as Merion (refer a debt) or to seek legal advice. You can draft a compliant demand quickly with the free Letter of Demand Generator. Acting promptly after the deadline preserves the seriousness of the demand and keeps the account moving.

A note on advice

This is general information only and not legal advice. Whether a demand is appropriate, what to say, and what to do next depends on the contract, the conduct of the parties, and the facts of your situation. For disputed debts, large sums, or anything heading toward formal proceedings, seek advice tailored to your circumstances before you act.

Key takeaways

  • A letter of demand is not a court document but is important evidence.
  • Keep it factual, specific, and time-bound.
  • Avoid threats or inflated figures — they weaken your position.
  • If ignored, refer it or seek advice without long delay.

Frequently asked questions

Is a letter of demand legally required before suing?

Not always, but it is good practice and is often expected before proceedings. This is general information, not legal advice.

Can I add interest and costs?

Only if your terms of trade provide for them, or once a court awards them. Otherwise the demand should reflect the principal owed.

How long should I give?

Seven to fourteen days is common for a commercial account, though the right period depends on the relationship and the amount.

Put it into practice

Knowledge is good. Getting paid is better.

Merion's team recovers what you're owed — commission-only, no upfront fee.