Dispute resolution
What a letter of demand actually achieves
Elise Marlowe · 28 October 2026 · 1 min read
A demand letter is not a threat. It is a dated record of the claim, and it is the cheapest step in a commercial dispute.
Most commercial disagreements begin with a phone call that goes badly and end with a letter. The letter is rarely the dramatic moment people expect. Its value is narrower, and far more useful, than that.
It fixes the facts on a date
A demand letter states what was agreed, what was delivered, what is owed, and by when. From that point the other side cannot say they were unsure what the complaint was. If the matter later reaches a court, the letter shows exactly what was put to them, and when.
It starts a clock
Almost every commercial pathway has time limits that begin when a party is put on notice. A properly drafted letter starts that clock deliberately rather than by accident, and it gives the other side a defined window to respond before costs begin to accumulate.
It often ends the dispute
In my experience most demands settle, not because of the words chosen but because the letter arrives from a lawyer and forces a decision that had been avoided. That is a good outcome. Nothing in the process requires an adversarial tone.
When a letter is the wrong tool
If the relationship needs to continue, or the amount is small, a call is usually better and costs nothing. If the other side has no assets, a letter changes little. Knowing which situation you are in is most of the work.
This is general information about commercial practice, not legal advice about your matter.