Allowance Overages in Remodeling: Sign the Difference Before the Order, Then Count What Slipped

Where allowance overages go missing

The mechanics are innocent. The homeowner picks a vanity at the showroom with the designer. The selection is noted in the project software or a spreadsheet as a choice, not as a number set against the allowance. The supplier quote goes to whoever orders, the vanity is ordered, and the supplier invoice is coded to the job weeks later. Nothing in that path creates a bill for the homeowner.

Each hand-off in that path has a different owner — designer, project manager, purchasing, bookkeeper — and none of them owns the price difference. So it waits. When the final invoice is built, someone adds up the allowances against the supplier invoices, finds the overages and adds them in one lump, at the moment the homeowner is also reading the punch list and weighing the last payment. That is the worst time to introduce a number the homeowner has never seen.

Some overages never reach a bill at all: the added labor of a harder install, the freight on a special order, the second trip for a back-ordered piece. They are real costs on the job, and they are missing from every invoice.

Price and sign the overage before the order

The fix is a sequence, owned by one named person — the selections coordinator, the designer or the project manager, whoever sits closest to the homeowner when the choice is made.

• Price the selection the day it is made, from the supplier’s quote: material, tax, freight, and any added installation labor.
• Write the difference against the allowance as a change order, with the contract’s markup on its own line: what was selected, the amount added or credited, the draw it is added to, and any change to the completion date.
• Get the homeowner’s signature on that change order before the order is placed.
• Order only after the signature, and write the order date on the change order.
• Credit underages the same way and just as promptly. A firm that credits fast has firm ground to bill fast.

This is the same discipline as any other change order, because an overage changes the contract price. California’s statute says a change order must describe the scope, the cost added or subtracted and the effect on the schedule of progress payments, and that it becomes part of the contract once written and signed before the work it covers starts. Wisconsin’s code bars substituting products named in the contract without the buyer’s prior consent, in writing where the contract is written. The companion guide on change orders sets out five states’ rules side by side.

When an allowance overage can be billed: the contract and the state

Signing and collecting are two different moments, and the law can separate them. Some guides advise making an overage due on approval. Before adopting that, read the payment rules that apply to the firm.

In California, a home improvement contract with progress payments must carry this statement in bold type: “IT IS AGAINST THE LAW FOR A CONTRACTOR TO COLLECT PAYMENT FOR WORK NOT YET COMPLETED, OR FOR MATERIALS NOT YET DELIVERED. HOWEVER, A CONTRACTOR MAY REQUIRE A DOWNPAYMENT.” The down payment itself may not exceed $1,000 or 10 percent of the contract price, whichever is less. The Contractors State License Board reminded contractors of both rules in a November 2022 bulletin, adding that a violation of the payment provisions of §7159.5 is punishable as a misdemeanor. How those words apply to an overage on a special-order item is a question for a California construction attorney.

Other states set different limits on what may be collected before the work, and the contract itself sets the timing of each draw. The operating rule that holds everywhere: the overage is signed before the order, and it goes on the next draw the contract and the law allow — never held for the final invoice.

Count what slipped on ten closed jobs

Before buying anything, count last year’s overages from the firm’s own records. Pick ten closed jobs with allowances and build one row per allowance line:

• The allowance amount, from the contract or its allowance schedule
• The actual cost of the selection, from the supplier invoice, with freight, tax and any added labor
• The overage or underage, with the contract markup applied
• The date of the selection, the date of the order, and the date of any signed change order
• The draw or invoice the overage first appeared on, and the days between the order and that bill
• Whether it was paid in full, reduced at closeout, or never billed

Illustrative example: ten closed kitchen and bath jobs carry 50 allowance lines, and 22 of them went over. Eight overages were signed before the order. Eleven first appeared on the final invoice, an average of 70 days after the order, and two of those were reduced at closeout. Three were never billed; at an illustrative $900 each, that is about $2,700 of selections the firm paid for, plus 70 days of carrying cost on the eleven that waited. The two numbers worth keeping are the share of overages signed before the order, and the days from order to bill.

Fixes to make before buying software

The first fixes are decisions, not purchases.

• Set allowance amounts from the firm’s own recent selections for each item, not from a supplier’s entry-level price, so the allowance reflects what its homeowners choose.
• Attach the allowance schedule to the contract: the amount, what it includes, the markup on overages, how credits work.
• Set a selection deadline for each allowance, tied to the order lead time.
• Name one owner for selection-to-change-order, and require the signed change-order number on every purchase order for an allowance item.
• Review open allowances in the weekly job meeting: chosen or not, priced or not, signed or not.

Project software can hold an allowance line, a selection and a change order in one place, which helps once someone owns the sequence. Some remodelers drop allowances altogether — fixed selections in the bid, or homeowner-supplied materials — and each choice trades one risk for another: a longer design phase in the first case, warranty and delivery questions in the second.

When not to change anything

If the count shows overages signed before the order and billed on the next draw, the firm’s allowances are working; leave them. If allowances are rare — a firm that sells fixed selections from its own showroom — the money is leaking somewhere else. And a one-crew remodeler who prices and orders every selection personally already sees each overage; there is no hand-off to lose yet.

Allowance overages are one of several places a remodeling firm’s money waits after the work is done: changes built on a handshake, draws sent at month-end instead of at the milestone, final payments held over the punch list. Our Revenue Review counts each of them from the firm’s own records — contracts, selections, change orders, draw invoices, supplier invoices and the books: two weeks, read-only, ending in a written report with a monthly dollar figure wherever the records support one. Nobody here builds or remodels, and the Review gives no legal advice. The free 20-minute call says plainly when the Review is not worth it.