Giving a discount without giving away margin

The customer holds your $8,000 bathroom estimate and asks if you can do anything on the price. You say ten percent, because ten percent sounds small.

It is not. At a 30 percent gross margin, ten percent off takes a third of your gross profit, and you need half again the work to earn it back.

The volume math nobody runs before saying yes

Materials and labor do not get cheaper when you discount. The cut comes out of gross profit, the only part of the price you keep.

Extra volume needed to break even = discount % / (gross margin % − discount %)

What 10 percent off demands:

The middle column is measured against the original price, because that is the profit you gave up. Measured the usual way, against the new price, a 30 percent margin reads 22 percent. Same dollars, same break-even.

Your own margin is a question for your books, not for an average. For scale: NAHB's Cost of Doing Business study put the typical residential remodeler at a 29.9 percent gross margin in fiscal 2024, though general contractors and specialty trades commonly report lower and the spread inside a trade is wide.

Below your discount percentage there is no math left at all: at a 10 percent margin, 10 percent off leaves nothing to cover overhead.

An $8,000 bathroom, before and after

Direct costs — tile, fixtures, subs, your installer's hours — come to $5,600. Gross profit is $2,400, a 30 percent margin. Say the job carries $1,200 of overhead: its share of the truck, insurance, phone, bookkeeping. Pull yours from your P&L.

The price dropped 10 percent and your take-home dropped 67 percent. The $800 is fixed; the percentage depends on how much overhead the job carries, and thinner coverage makes it look worse. At NAHB's survey average, where operating expenses eat about 23.6 percent of revenue, this job nets about $500 at full price and loses money at $7,200. Three of those a month is $28,800 a year, for the same hours.

One footnote, state by state. In most states a discount taken at the time of sale reduces the receipt you owe sales tax on, while a manufacturer's rebate paid later does not — New York and Massachusetts spell that out. For contractors the prior question matters more: many states treat you as the consumer of materials you install into real property, so you pay tax on purchase and never charge sales tax on the job price. Which rule applies turns on your state, your trade, and often on repair versus capital improvement. Ask your state revenue department or CPA.

Change the job, not the price

When the budget is real, the honest answer is a smaller job, not the same job for less.

Cut scope in front of them. Standard fixtures instead of the ones they picked; two rooms now, two in the fall. Your rate stays whole and they choose what they give up. A $6,400 job at your full 30 percent margin leaves $1,920 of gross profit for less work — the discounted $7,200 version leaves $1,600 for all of it.

Move the work to a slow month. Deep winter for many trades, high summer or storm season for others — use your own booking history. "I can hold this price if we start the week of March 9" costs you nothing and reads as a real concession.

Let payment timing solve it. Some customers want a smaller number today, not less money — progress billing across two or three draws often closes that gap.

If you give one, get something for it

A discount is a trade. Name what comes back, in writing:

• A larger deposit, or payment in full at completion instead of net 30
• Permission to photograph the finished work and use the photos
• An introduction to the neighbor with the same problem
• Two more units or rooms bundled into the same trip

Write it in as a line: "Repeat-customer credit, $400 — applied against two units scheduled together." Then it is a term, not a habit.

Leave one trade off that list: a discount for a Google review. Google's policy bans any incentive for a review, positive or negative, and enforces it by pulling reviews or suspending profiles. The FTC's Consumer Reviews and Testimonials Rule (16 CFR Part 465, effective October 2024) treats an incentive tied to a review's sentiment as a deceptive practice, with civil penalties. Asking a happy customer for a review is fine. Paying for one, in discount or in dollars, is not.

The one discount that pays for itself

Schedule certainty. When the calendar three weeks out is thin, a booked job at 20 percent margin beats an empty truck: overhead is paid that week whether the truck moves or not, so anything above direct cost is money you would not otherwise have. That stops the moment the slot would have filled with better work, and it never covers a job priced below direct cost.

Attach it to the calendar, not the customer, so it does not follow them into next year — "off-season rate for work completed before March 31." And take a deposit — but check what you are allowed to ask for first. Several states cap the down payment on residential work, lower than most expect: California limits home improvement down payments to $1,000 or 10 percent of the contract price, whichever is less, with citations and license discipline behind it. Other states set their own figure or none. Your licensing board publishes the rule.

What to say when they ask you on the spot

The worst answer is a fast yes. A price that moves the moment someone pushes was never firm, and most contractors will tell you the next conversation starts from the discounted number.

You do not have to say no. You have to not say a number yet.

• "Let me ask first — is it the total that's the problem, or the timing?"
• "That price holds as written. If the budget is firm at $6,500, say so and I'll build you a $6,500 version."
• On a lower bid elsewhere: "Could well be. I don't know what's in their number — want me to walk you through mine?"

In DoneQuote an estimate is separate line items, not one lump sum. When a customer asks for less, you pull the two lines they can live without and send the revised version before you leave the kitchen — so the talk stays about scope, not your rate.

Summary

• Ten percent off at a 30 percent margin needs 50 percent more volume to break even
• Cut scope, shift the schedule or split the payments before you touch the price
• Trade a discount for a deposit, a referral or photo rights — never for a review
• Never give a number in the moment. Buy one question first

Your price is the outcome of a calculation. Someone asking is not a reason to redo it.