Down Payment and Progress Payment Limits on Home Improvement Work
By Seamless Home Team, Solar fulfillment operations · September 9, 2026
Quick answer
Several states cap the deposit a home improvement contractor may collect before starting work, and the caps are deliberately low: California, for example, limits it to the lesser of one thousand dollars or ten percent of the contract price, and other states use their own figure or their own formula. The rule usually goes further than the deposit alone — progress payments generally may not run ahead of the value of work actually performed and materials actually delivered to the site, which prevents a compliant deposit being followed by a non-compliant second payment. The rules exist because taking money for work never performed is the classic home improvement fraud pattern, so enforcement tends to be strict and the consequences can include licensing discipline as well as a refund obligation. For residential PV solar this creates a real problem rather than a paperwork one: design, engineering, permit fees and materials are all committed before the first defensible progress event. The answer is not a larger deposit but a payment schedule tied to defined milestones plus a funding structure that does not depend on homeowner cash — which is what milestone financing and materials terms without upfront capital exist to do.
A residential solar project spends money early. Design and engineering are committed at the front, permit fees are paid to submit, and materials are ordered before a crew is scheduled. None of that is on the roof, and none of it is visible to the homeowner.
The instinctive commercial answer is to take a deposit that covers it. In several states that answer is unlawful, and the caps are not close: California limits a home improvement deposit to the lesser of one thousand dollars or ten percent of the contract price, which on any normal solar contract means the operative figure is one thousand dollars.
That is not a rounding problem. It is a structural constraint on how a residential home improvement business can be funded, and it is the reason the industry's payment architecture looks the way it does.
What the rule actually restricts
Two separate limits usually operate together, and satisfying the first does nothing for the second.
The deposit cap. A ceiling on what may be collected before work begins. The number, the formula and whether the state regulates it at all vary completely. Some states use a flat dollar figure, some a percentage, some the lesser of the two, some tie the limit to whether the contractor carries a bond, and some do not regulate deposits.
The value-of-work rule. This is the one that gets missed. Many states require that no payment exceed the value of work performed and materials delivered at the time it is taken. A front-loaded schedule therefore fails even where the initial deposit was compliant, because the second payment ran ahead of performance.
The practical test for any line on a payment schedule is simple: could this payment be justified by pointing at completed work, or at materials actually on the property? A payment triggered by a date, or by an internal event like "final design issued", usually cannot be.
Why this is genuinely hard for solar
On most home improvement work the constraint is manageable, because the money and the work start at roughly the same time. Solar inverts that.
| Committed cost | When it is spent | Is it "work performed" at the property? |
|---|---|---|
| Site survey | Week 1 | Sometimes; state-dependent |
| Design and engineering | Weeks 1–2 | Generally no |
| Permit fees | Weeks 2–3 | No |
| Materials purchase | Weeks 3–6 | Not until delivered to the site |
| Installation labour | Install day | Yes |
Everything above the last two rows is committed before a defensible progress event exists. The gap is weeks long, it is the whole reason projects stall after the sale are so expensive when they do, and it cannot be closed with a bigger deposit because the bigger deposit is the thing that is prohibited.
The delivery milestone is the useful one. Several states expressly allow a payment on delivery of materials to the property, which is the earliest event that satisfies the value-of-work test in a way anybody can verify. Building the schedule around it moves the first substantial payment forward by weeks compared with waiting for installation.
A compliant schedule, in order
Four events, each verifiable by a third party:
- Signature. A deposit within the state's cap, if the state permits one at all. Treat the cap as a hard number rather than a target.
- Materials delivered to the property. Evidenced by a delivery record, and defensible under the value-of-work test because the materials are physically there.
- Installation complete. The largest payment, and the point at which most of the value exists.
- Inspection sign-off or permission to operate. The final portion, which is also where the financier's last draw usually sits and where closeout documentation becomes the gating item.
That sequence is not a compromise between compliance and cash flow. It is close to how milestone funding already works, which is not a coincidence — lenders release against verifiable events for the same reason statutes require it.
Where financing changes the question
On a financed project the homeowner is generally not being asked for cash before work begins, so the deposit rule is not engaged in the way it is on a cash sale. That removes the problem rather than the requirement, and it leaves one thing to get right:
the payment schedule in the homeowner contract and the draw schedule agreed with the financier have to describe the same events. Where they diverge — the contract says "50 percent on commencement", the lender funds M1 on notice to proceed and M2 on install completion — the contract is the document a licensing board will read, and it is the one that will be measured against the value-of-work rule. Divergence here is common and it is entirely avoidable at drafting.
The residual exposure is the working capital gap itself, which is a funding question rather than a contracting one. Its largest component is materials, which is why terms that do not require upfront capital for materials change the size of the gap rather than its length, and why the cash conversion cycle is the number worth modelling before deciding a payment schedule is affordable.
What to check before selling in a new state
Four questions, and none of them can be answered by analogy from another state:
- Is there a deposit cap, and what is the formula? A dollar figure, a percentage, the lesser of both, or nothing.
- Does the state apply a value-of-work rule to progress payments? If so, every line on the schedule has to survive it, not just the first.
- What counts as commencing work? Specifically whether off-site design, engineering and permit preparation start the clock, and whether a site survey does.
- Is a payment on delivery of materials to the site expressly permitted? Where it is, it is the most valuable milestone available.
These sit alongside the rest of the mandatory contract terms, and the payment schedule is one of them — so a schedule that is commercially sensible and statutorily non-compliant is a defective contract, not merely an aggressive one.
Where Seamless Home fits
Seamless Home is a licensed contractor running design, permitting, engineering, procurement and project management as inside operations, with installation performed by vetted installing partners engaged as its subcontractors. On projects where it is the contractor of record, the payment schedule in the homeowner agreement is its obligation to get right.
The more useful point for a sales organisation is the one underneath: the reason deposit caps hurt is that somebody has to carry design, permit fees and materials for several weeks. A multi-lender panel that funds against milestones, and materials supplied without upfront capital, address that carry directly — which means the compliant payment schedule stops being a cash-flow problem to solve and becomes just the correct paperwork. Coverage is confirmed per service area rather than promised as blanket availability.
The bottom line
Several states cap what a home improvement contractor may take before work begins, and the caps are low enough to be structural rather than inconvenient — one thousand dollars in California, other figures and formulas elsewhere. Most of those states also require every subsequent payment to stay within the value of work performed and materials delivered, so a compliant deposit followed by a front-loaded second payment still fails. Build the schedule on signature, delivery to site, installation complete and inspection sign-off; make the contract's payment terms and the lender's draw conditions describe the same events; and solve the resulting carry with funding rather than with a larger deposit. Confirm the figures with counsel for every state you sell in, because none of them are portable.
Frequently asked questions
How much deposit can a home improvement contractor take?
It depends entirely on the state, and in the states that regulate it the figure is low. California caps it at the lesser of one thousand dollars or ten percent of the contract price, which on a typical residential solar contract means the ten percent test is irrelevant and the practical cap is one thousand dollars. Other states set their own figure, use a percentage without a dollar ceiling, tie the limit to whether the contractor is bonded, or do not regulate deposits at all. Because the variation is total, the only safe approach is to confirm the figure for each state you sell in rather than adopting one number nationally.
Why are deposits capped at all?
Because collecting payment for work that is never performed is the oldest and most damaging pattern in home improvement selling, and a deposit is the mechanism. The caps are a structural fix rather than a punitive one: they limit how much a homeowner can lose to a contractor who takes the money and does not return, and they force the payment schedule to follow performance. That framing also explains why enforcement is usually strict and why the consequence attaches to the act rather than to any proven harm.
Can progress payments be scheduled however the parties agree?
Generally no, and this is the requirement most often overlooked once the deposit question has been answered. Many states require that payments not exceed the value of work performed and materials delivered at the time of payment, which makes a front-loaded schedule non-compliant even where each individual payment is described as a progress payment. The practical test is whether a payment could be justified by pointing at completed work or at materials actually on site. A payment triggered by a calendar date, or by an internal event like a design being issued, usually cannot be.
Do the caps apply if the project is financed?
The financing does not remove the requirement, though it usually removes the problem. Where a lender funds the project against defined milestones, the contractor is not asking the homeowner for cash before work begins, so the deposit rule is not engaged in the way it is on a cash job. What still matters is that the draw schedule agreed with the financier and the payment schedule stated in the homeowner contract describe the same events. Where the contract's payment terms and the lender's draw conditions diverge, the contract is the document a licensing board will read.
What counts as starting work for the purposes of the rule?
Less than most people assume, and it is worth confirming rather than reasoning about. In several states, work that is not performed at the property does not start the clock — a site survey may or may not, and design, engineering and permit preparation frequently do not, because the statutory language is aimed at work on the residence. That is precisely the awkward part for solar, since the earliest committed costs are almost all off-site. Some states address it explicitly by allowing a payment on delivery of materials to the site, which is a defensible milestone and an early one.
What happens to a contractor who takes an excessive deposit?
The immediate consequence is usually an obligation to refund the excess, which is unremarkable. The consequence that matters is licensing: an excessive deposit is a defined violation in states that regulate it, and it is one boards actively discipline, independently of whether the project completed successfully or the homeowner complained. Some states treat a pattern of excessive deposits as evidence supporting a broader enforcement action, and in the more serious cases the conduct sits close to statutes aimed at contractor abandonment and diversion of funds.
How should a solar payment schedule actually be built?
Around events a third party can verify, in the order they occur: a compliant deposit at signature if the state permits one, a payment on delivery of materials to the property, a payment on completion of installation, and a final payment on inspection sign-off or permission to operate. That structure satisfies the value-of-work test at every step, matches the way milestone financing already releases funds, and has the side benefit of aligning what the homeowner is asked to pay with what they can see has happened. The working capital gap it leaves behind is real, and it is a funding problem rather than a contracting one.