When a Client Wants You to Start Before Signing the Contract
- A client asking you to start before signing usually has a real deadline, a slow internal process, or simple excitement. It is not always a bad sign, but work done before the paperwork is work you may never be paid for, and it costs you most of your leverage on scope and payment.
- Use the Profit Room's Paper First Rule: no build work starts until there is a signed agreement and a cleared deposit. Ask what is holding things up, remove every bit of friction you can, and give a start date that moves with the signature, not a promise that ignores it.
- If the date truly cannot move, offer one small, separately paid step with a short written approval, such as a paid discovery or a fixed mini-scope. If the client refuses any paper and any payment while pushing harder on urgency, treat that as your answer.
The Short Answer
When a client wants you to start before signing, say you are glad to move fast, then ask what is holding up the signature. Do not start the build, and do not lecture them about contracts. Often the delay has an ordinary cause: their finance team, a lawyer who is out this week, or a founder who has not opened the email. Your job is to clear that obstacle and tie the start date to the paperwork, so moving fast and signing become the same thing.
That is the Paper First Rule: no build work until there is a signed agreement and a cleared deposit. It sounds rigid, but it protects the client as well as you, because both sides know what is being built, what it costs, and when it is done. This is general guidance from how we run our own projects, not legal advice. Contract rules vary by place, so have a lawyer look at anything big or unusual.
Why Starting Early Costs You More Than It Looks
With Claude Code, starting feels cheap. You could have something on screen by tonight, and that is exactly why the request is tempting. But the risk is not the hours. Once working software exists, you have handed over the thing that made the client want to sign.
- Your leverage on payment drops. A client who has already seen the work has less reason to hurry, and the deposit conversation gets harder, not easier.
- Scope stays undefined. Without [a written scope](/blog/scope-of-work-that-prevents-scope-creep), whatever you build first becomes the starting point for an argument later about what was included.
- Ownership gets murky. If nothing says who owns the work or when rights transfer, [who owns the code](/blog/who-owns-the-code-you-build-for-a-client) becomes a harder question, and you do not want to settle it after a falling out.
- You teach the client how you work. If the paperwork was optional this time, expect it to feel optional on the next change request and the next invoice.
There is a difference between this and a sales demo. Showing a small prototype to win a deal, as in [the demo-first close](/blog/the-demo-first-close), is a choice you make, on your terms, with a limit on what you hand over. Building the real project because the client asked you to skip the paperwork is something else, even if the code looks the same. If they are asking for the demo itself for free, [the free proof of concept](/blog/client-asks-for-a-free-proof-of-concept) covers that conversation.
Run the Paper First Rule
Work through these in order, and stop as soon as the paperwork is done.
- Ask what is holding it up. 'Happy to move quickly. What is standing between us and a signature?' You need to know whether the cause is a person, a process, or a doubt about the deal.
- Remove the friction. Send an e-signature link instead of a PDF, keep it short with a [one-page agreement](/blog/one-page-agreement-before-you-build), and offer to walk their lawyer or finance contact through it. If they have their own paper, [reviewing their contract](/blog/client-sends-you-their-own-contract) quickly is part of moving fast.
- Tie the date to the paper. 'If it is signed and the deposit clears by Thursday, I start Monday.' Hold a slot if you want to, but make it clear what releases it.
- If the date truly cannot move, offer one small paid step. A fixed-price discovery or mini-scope, described in a short email they reply 'approved' to, and paid before you begin. It should stand on its own and produce something useful even if the bigger deal never happens.
- If they refuse all of it, decide. Ask once more, in writing, then stop holding the slot. You can [turn down the project politely](/blog/how-to-turn-down-a-client-project) and leave the door open for when the paperwork is ready.
| What they say | What is usually going on | What to do |
|---|---|---|
| 'Legal is slow, but it is coming' | A real internal process | Offer to talk to legal, and offer a small paid step if the deadline is real |
| 'We have a launch date we cannot miss' | A real deadline, and possibly a late decision | Tie the start date to the signature and rescope to what fits; do not absorb the risk |
| 'Finance only pays after the first delivery' | A payment process, or a test of your terms | Ask for a purchase order or written approval, and use a small paid first milestone |
| 'We trust each other, right?' | They do not want the conversation | Agree warmly, and explain that paper is what keeps that trust easy |
| 'Just get going and we will sort out the details' | Scope and price are still open | Sort out the details first; this is the riskiest version of the request |
The Paper First Rule: what the client says and what to do
Claude Code can help you keep the rule without slowing anything down. In the desktop app, you can turn your call notes into a draft scope and a short agreement in the same session, then read every line yourself before it goes out. Fast paperwork removes the main excuse for skipping it.
What to Say
Notice what the message does not do. It does not accuse them of anything, and it does not explain what could go wrong. It treats the paperwork as how you work, the same way a contractor does not start a kitchen on a promise. If the pushback is about the deposit rather than the signature, [the deposit conversation](/blog/the-deposit-conversation-get-paid-upfront) has the next set of words, and [milestone payments](/blog/structure-client-payments-milestones) can give a nervous client a smaller first step without leaving you unpaid.
Be careful with the phrase 'as a favor.' If you do decide to make an exception for a client you have worked with and been paid by before, write it down anyway: a short email saying what you are starting, what it costs, and that their reply means yes. Ask a lawyer if you want to know how much weight an email like that carries where you are. It is still far better than nothing, because it records what you both believed on that day.
When the Rush Is the Warning
Urgency by itself is normal. What should make you step back is urgency combined with resistance to anything that creates a record: they push on the date but will not put the scope in an email, they want you to start but will not name who approves payment, or the deadline keeps changing while the paperwork never arrives. A client who behaves this way before money changes hands rarely gets easier afterward, and you may end up reading about [clients who pay late](/blog/how-to-handle-a-client-who-pays-late) from personal experience.
If you have already started without paper, stop adding work and fix it today. Send a short agreement that covers what has been done so far, what is left, and what is owed, and pause until it is signed. It is an awkward email, but it only gets more awkward the more you have built. To avoid the situation next time, bring up the paperwork and deposit timing in your [expectations conversation](/blog/set-client-expectations-before-a-claude-code-build), before anyone is excited about a start date.
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Frequently asked
Should I ever start work before a contract is signed?
Not on the build itself. If the deadline is real, do one small, separately paid step with written approval by email. Even for a client you trust, write down what you are starting and what it costs.
What if the client says their legal team is just slow?
That is often true. Offer to talk to legal directly, send the shortest agreement you can, and tie your start date to the signature. If the deadline cannot wait, offer a small paid first step.
Is an email approval enough to start?
It is much better than nothing and fine for a small paid step, but it is not a replacement for a proper agreement on a full build. How much weight an email carries varies by place, so ask a lawyer about anything large.
What if the client refuses to pay a deposit until they see something?
Offer a small paid first milestone that delivers something they can see, instead of free work. If they will not pay for anything until the work is finished, that is a reason to step back.
What do I do if I already started without a contract?
Stop adding work and send a short agreement today covering what is done, what is left, and what is owed. Pause until it is signed. It gets harder the longer you wait.
Last reviewed November 8, 2026.
Co-founder of the Claude Code Profit Room. Built and sold AI services to real clients; writes about offers, pricing, outreach, and closing with receipts.
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