How to write a demand letter that actually gets you paid

Why this one page matters more than the lawsuit

A large share of small claims disputes end at the demand letter, before anyone pays a filing fee. That is not because a letter has legal force — it has none. It is because until a dated, specific demand arrives, the other side has been treating payment as optional: a thing to deal with eventually, if you keep pushing.

A good letter changes that calculation. It says, in writing and on a date, exactly what is owed, exactly why, and exactly what happens next. Suddenly ignoring you has a cost and a schedule.

It is also a procedural requirement. California expects you to have asked the defendant to pay before you file, and form SC-100 asks you to confirm you did.

The seven things your letter must contain

1. The date

   Not decorative. It fixes the record, starts your deadline running, and will be the first thing a judge looks at if the letter is ever handed up.

2. Both parties, named correctly

   This is where people quietly ruin their own case. If you are writing to a business, use its registered legal name — look it up on the California Secretary of State's business search. A letter, and later a judgment, against "Dave's Roofing" when the entity is "D. Mercer Roofing Services, LLC" can be worthless. Get it right now and the SC-100 is right later.

3. What happened, briefly

   Three or four sentences. What the agreement or event was, when, and what went wrong. Resist the urge to tell the whole story — you are not persuading them you were wronged, you are demonstrating that you have an organized, documented claim.

4. The exact amount, broken down

   Not "around $3,000". A specific figure with its components: the deposit of $1,800, plus the $640 you paid someone else to finish, plus the $200 of materials. A round number that appears to have been arrived at hopefully invites argument; an itemized one invites payment.

5. The rule that applies — and cite it

   This is the single biggest difference between a letter that works and one that does not. Most small claims disputes sit on top of a specific California statute, and naming it tells the reader you have actually looked:

   • Security deposit: Civ. Code § 1950.5(g) gives the landlord 21 days, and § 1950.5(l) allows up to twice the deposit for bad-faith retention.
   • Unlicensed contractor: Bus. & Prof. Code § 7031 requires them to return everything you paid, even for work done properly.
   • Bad check: Civ. Code § 1719 allows treble damages between $100 and $1,500 — but only if you send the demand by certified mail and wait 30 days first.
   • Car repair over the estimate: Bus. & Prof. Code § 9884.9 required a written estimate and your authorization for anything beyond it.
   • Automatic renewal charges: Bus. & Prof. Code § 17600 et seq. requires clear disclosure and an easy way to cancel.

   A reader who sees a real code section understands you are not bluffing.

6. A deadline

   Ten to fourteen days is standard and defensible. Shorter looks unreasonable to a judge; longer invites drift. Give an actual date, not "within two weeks".

7. What you will do when it passes

   One sentence, flat and unemotional: that you will file a claim in the small claims division of the Superior Court and seek the filing and service costs as well. No threats, no capitals, no exclamation marks. Calm is what reads as credible.

Mistakes that make a letter easy to ignore

• Anger. It is the most natural thing in the world and it costs you. A furious letter is evidence about you, not about them, and a judge may read it.
• No deadline. An open-ended request is a request to be dealt with later.
• A vague amount. If you cannot state the number, it looks like you do not know it.
• Too long. One page. Two at most. Attachments carry the detail.
• Threatening things you cannot do. Do not threaten criminal charges, do not threaten to go to their employer, do not threaten to post about them. At best it is noise; at worst it exposes you.
• Sending it to the wrong place. For a company, send it to the registered address and, if you know it, the agent for service of process.

How to send it

If there is any chance you will need to prove it arrived, send it by USPS Certified Mail with an electronic return receipt. That gives you a mailing record and a delivery record — the two things a judge accepts. Keep both.

For some claims this is not optional. The bad check statute, Civ. Code § 1719, specifically conditions the treble damages on a certified-mail demand and a 30-day wait. Send that one informally and you keep the face value and lose the part worth having.

Email alongside certified mail is fine and often useful — it is faster and creates a second dated record. It should not be the only method for anything that matters.

A note on tone, from the other side of the desk

Imagine the person opening it. If they are disorganised rather than dishonest — which is most of them — a clear, itemized, calmly worded letter with a date and a code section gives them an easy way to resolve this and move on. A furious one gives them a reason to dig in and a story to tell themselves about you being unreasonable.

You are not trying to win an argument. You are trying to make paying you the path of least resistance.

Then what

If the deadline passes, you file. Your letter and the proof of mailing go into your evidence, because they show the court you asked first and were ignored — and they satisfy the confirmation the SC-100 asks for. The rest of the process is here.