California Business and Professions Code §7159: contractor guide

What §7159 does

At a high level, §7159 tells contractors when this home-improvement contract framework applies and what has to happen before and during the job. For covered agreements above the $500 aggregate threshold, the rule reaches the full value of labor, services and materials, not just one part of the project.

Some jobs sit under a different statutory track. A qualifying Service and Repair contract can fall under §§7159.10–7159.14 instead. And §7159 is not a stand-alone safe harbor: other laws can still apply to the same project.

Before work starts: writing, signatures and the customer copy

Before the covered work begins, get the agreement onto paper and through signature. The customer should have the contractor-and-buyer signed, dated copy before the job starts.

§7159 also puts certain information on the first page, including the buyer-signature date and contact information tied to cancellation. These details are easy to miss when a contractor starts from an old form.

Core information the contract must organize

Content is only part of the rule. §7159 also addresses how information is presented and delivered, including headings, type size, signatures, notices and attachments. Use the code section, not memory, as the final reference.

Down payments and progress payments

• If you collect a down payment, start by comparing $1,000 with 10% of the contract price. Under the general rule, the smaller figure is the ceiling, subject to any statutory exception that actually applies.
• A progress schedule should read like a map of the job. Each installment amount should point to the stage it pays for and the work, services or materials associated with that stage.
• Outside the allowed down payment and any applicable exception, the payment sequence generally follows performance: money should not run ahead of work completed or materials delivered.

More detail: down payment limit · progress payments

Change orders are part of the contract workflow

Treat a change order as a project-level amendment, not a note in a text thread. Put it in writing, have both sides sign it, and do that before the newly changed work begins.

The document should show the operational and financial effect of the change: what scope is different, how the contract price changes, and whether the progress-payment plan or completion date moves. §7159 also requires buyer-facing change-order information in the original contract.

Read the change orders guide →

Notices and disclosures §7159 puts into the contract

• ✓General-liability insurance status
• ✓Workers' compensation status
• ✓How extra work and change orders are handled
• ✓Mechanics-lien warning
• ✓CSLB notice and information
• ✓Cancellation paperwork that applies to the transaction
• ✓Performance and payment bond information when relevant
• ✓Whether subcontractors may be used
• ✓Lien-release language connected to payment

The statute controls both when these items apply and, for some notices, the wording. This page names the checkpoints; it does not reproduce the statutory notices. More detail: mechanics lien warning · cancellation rights

Cancellation rights: use the rule that actually applies

• §7159 includes a three-day cancellation framework for covered transactions.
• For a buyer treated as a senior citizen under the statute, the references shift to five days and the fifth day.
• Other statutory circumstances can trigger a seven-day framework referenced by §7159.
• The rule also treats certain contracts negotiated at the contractor's business location differently.
• If the job qualifies as a Service and Repair contract under §§7159.10–7159.14, analyze that separate framework instead of assuming the ordinary §7159 cancellation structure applies.

ContractBuilderAI can prompt a contractor to review cancellation questions, but it does not decide which cancellation statute governs a particular deal.

Read the cancellation rights guide →

A contractor workflow mapped to §7159

1. Classify the transaction before choosing the contract path.
2. Enter contractor, buyer and property details.
3. Write the scope and identify key materials and equipment.
4. Set price, expected start and completion dates.
5. Build the down-payment and progress-payment structure.
6. Add the notices and disclosures required for this transaction.
7. Review the whole agreement for consistency before signature.
8. Deliver the signed buyer copy before the covered work begins.
9. Document later changes with signed change orders.
10. Keep the signed contract and change history together.

Use this sequence as an operating checklist. It is not a legal determination that a particular contract satisfies every applicable rule.

How ContractBuilderAI fits

• Guided project setup
• Draft assistance for scope and materials
• Payment-stage planning
• Contract review checkpoints
• Electronic signatures
• Contract activity record
• Project-linked change orders

ContractBuilderAI helps organize these steps. The contractor still controls the final agreement and is responsible for confirming what the project requires.

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Related California contractor guides

Primary sources

• California Legislature — Business and Professions Code §7159
• Contractors State License Board — What Is a Home Improvement Contract?
• Contractors State License Board — Contracts and Binding Agreements

Building California contracts should not start from a blank page.

ContractBuilderAI is opening a California private beta on November 1, 2026 for licensed home improvement contractors.