Why a letter works better than a phone call
A demand letter does two jobs at once. First, it sometimes just works: a formal, dated letter reads differently than a text message, and a real share of disputes end here, before a court is ever involved. Second, if it doesn't work, you now have proof that you asked before you sued, which is exactly what a judge expects to see. A phone call can't do either of those things as convincingly.
What belongs in it
- The facts, in order, with dates: what was agreed to, what happened, what didn't.
- One exact dollar amount. Not a range, not "around." A number.
- One deadline to respond by. Not "soon." A specific date.
- One clear consequence if the deadline passes: that you'll file in small claims court.
- Copies (never originals) of anything that backs up the story: a lease clause, an invoice, a text thread.
What quietly undoes a demand letter
The letters that get ignored tend to share the same problems: several different dates and dollar figures scattered through the letter instead of one clean version of events, language that reads angry instead of factual, or no real deadline at all, just an implied "please pay eventually." None of that makes a reader feel any urgency to respond. A letter that reads like it was written five minutes before filing the actual court paperwork tends to get taken a lot more seriously than one that reads like a vent.
If they respond
Get anything they agree to in writing, even a text confirming a payment plan is worth keeping. If they pay in full, you're done. If they pay partially or make a promise and miss it, that written record becomes useful evidence later, including for a court's statute-of-limitations clock, which generally runs from when a debt was due (four years for a written contract, two for an oral one, under Code Civ. Proc. §§ 337, 339).