There is no single normal deposit schedule for custom homes. Reasonableness depends on contract type, state law, lender rules, builder capitalization, procurement, stored materials, trade deposits, and the protection attached to each payment.
Identify what the deposit funds
A preconstruction retainer may pay for estimating, scheduling, constructability, consultant coordination, and procurement planning.
A construction deposit may support mobilization, permits, insurance, temporary facilities, trade reservations, or material orders.
Tie payment to defined value
Each milestone should state the scope, evidence, amount, approval, and whether funds are refundable, earned, credited, or held.
Large round-number deposits without a scope or accounting method deserve scrutiny.
Coordinate with the lender
Construction lenders may restrict deposits, require borrower equity first, control stored materials, or reimburse only after inspection.
The owner should not sign a payment schedule that conflicts with the approved draw process.
Protect stored and custom materials
Deposits for windows, cabinets, equipment, stone, steel, or other custom items should identify ownership, storage location, insurance, release terms, cancellation, and delivery risk.
Payment does not automatically create possession or protection.
Comply with state rules
Contractor deposit, trust-fund, lien, notice, escrow, and payment laws vary materially by state.
Qualified local legal review is appropriate before committing significant funds.
The BuildProof Payment Protection Test
Payment Protection Test turns the topic into a repeatable national workflow while preserving the local evidence required for a defensible project decision.
| Step | Required action | Exit test |
|---|---|---|
| 1. Purpose | Identify what each payment purchases. | The value is defined. |
| 2. Evidence | Require invoice, milestone, stored-material, or service documentation. | The payment is supported. |
| 3. Align | Match lender eligibility and draw timing. | Funding is available. |
| 4. Protect | Address title, insurance, storage, waivers, and refunds. | The owner's position is protected. |
| 5. Reconcile | Track deposit application and remaining contract balance. | No payment disappears. |
What to document
- Deposit purpose
- Earned or refundable status
- Credit against contract
- Lender eligibility
- Stored-material protection
- Insurance and title
- Applicable state requirements
- Reconciliation schedule
Common failure modes
- Paying a large unexplained deposit
- Assuming the lender will reimburse it
- Prepaying unprotected materials
- Ignoring cancellation terms
- Failing to track how the deposit is applied
Frequently asked questions
What deposit percentage is normal?
There is no universal percentage. Evaluate the amount against defined services, procurement, lender rules, state law, and protections.
Should deposits be refundable?
It depends on the agreement and work performed. The contract should state when funds are earned and how unused amounts are handled.
Can a builder require payment before work begins?
Potentially, subject to contract, lender, and state requirements. The owner should understand the reason and protection.
BuildProof next step
Put every deposit through the Payment Protection Test before signing the contract or releasing funds.
If you're weighing a build of your own, get pre-qualified with BuildProof so land, budget, and financing are lined up before you fall in love with a lot.
Sources
- Federal Trade Commission — Hiring a Contractor
- Consumer Financial Protection Bureau — Mortgages
- Fannie Mae — Construction Products
- U.S. Small Business Administration — Licenses and Permits
Editorial note: Codes, permits, contractor licensing, lien rights, taxes, insurance, environmental review, financing, and professional-practice rules vary by state and local jurisdiction. Verify project-specific requirements with qualified local professionals and the authorities having jurisdiction.