Contractor Markup & Margin Calculator
Add 20% to a $10,000 job and you bill $12,000. That is a 16.7% margin, not 20%. To actually keep 20% you have to bill $12,500. Most contractors lose money in that gap without ever seeing it on an invoice.
This contractor markup calculator works both ways. Enter your job cost and the markup you use, and it shows the margin you are really running. Or enter the margin you need, and it shows the markup that gets you there. Built for remodeling and construction contractors who price by the job, not by the hour.
What your markup is really paying you
| Markup on cost | Gross margin |
|---|---|
| 10% | 9.1% |
| 20% | 16.7% |
| 25% | 20.0% |
| 33.3% | 25.0% |
| 42.7% | 29.9% |
| 50% | 33.3% |
| 100% | 50.0% |
Markup is profit measured against your cost of goods sold; margin is the same profit measured against the selling price. The highlighted row is the 29.9% average gross margin remodelers reported for 2024 in the NAHB Cost of Doing Business Study. It takes a 42.7% markup to get there.
Run the contractor markup calculator
Enter a job cost and either your markup or your target margin, whether you bid fixed price or run time and materials. The calculator returns the sell price, the gross profit in dollars, and the other half of the pair so you can see both numbers at once.
Markup vs margin: not the same number
A markup percentage and a margin percentage describe the same dollar of profit from two different starting points. Confusing them is the most common pricing error in residential construction, and it gets worse as the job gets bigger.
Markup is measured on cost
Markup is what you add on top of what the job costs you. A $10,000 cost with a 25% markup sells for $12,500. It is the number you use when you are building the price up from materials, labor and subs.
Margin is measured on price
Margin is what share of the money the customer pays you actually keeps. That same $12,500 job returns $2,500 of gross profit, which is 20% of the sell price. Margin is the number your bank statement agrees with.
Price backwards from margin
If you need a 30% gross margin, do not add 30%. Divide the cost by 0.70. A $10,000 cost has to sell for $14,286. Pricing forward from a markup and hoping the margin lands is how a busy year ends flat.
What remodelers actually keep
Gross margin is not profit. It is the pool that has to cover your overhead first, and whatever survives that is net profit. The published industry figures show how thin the second number is.
29.9%
Average gross profit margin reported by remodelers for fiscal 2024 in the NAHB Cost of Doing Business Study. Reaching it requires a 42.7% markup on cost, not a 30% one.
6.3%
Average net profit margin for the same group in the same year, after overhead. NAHB notes this was the highest net margin remodelers had reported since 1996, which tells you how normal 4% to 5% has been.
23.6%
The share of revenue that overhead consumed on average. If you price at a 20% gross margin while carrying overhead in that range, the job is losing money before it starts.
Use the averages as a floor to argue against, not a target to copy. Your own overhead rate, which you can size with the overhead calculator, is what sets the gross margin you have to hold. A one-truck operation and a company with an office, a project manager and six vans do not need the same number.
- NAHB, Home Remodeling Profit Margin, April 2026 — 2026 Remodelers' Cost of Doing Business Study, fiscal year 2024 data.
- NAHB Eye On Housing, Remodelers Saw Profit Margin Gains in 2024 — gross margin 29.9%, net margin 6.3%.
Figures checked 11 September 2026. The conversion math in this tool is arithmetic and does not change.
Markup and margin, answered
What is the difference between markup and margin?
Markup is measured on your cost, margin on your sell price. Add 25% to a $10,000 cost and you bill $12,500, which is a 25% markup and a 20% margin: the same $2,500 described two ways. Markup is what you add. Margin is what you keep. Almost every contractor pricing error in this area starts by treating them as one number.
What markup do I need for a 30% gross margin?
A 42.9% markup. Divide the cost by 0.70 to get the sell price, then subtract the cost: on a $10,000 job that is $14,286 billed and $4,286 kept. Adding 30% to cost instead gives you $13,000 and a 23.1% margin, so you are $1,286 short on every job that size.
Is overhead covered by my markup, or does it come on top?
It comes out of the markup, not on top of it. Your markup produces gross profit; rent, trucks, insurance, office staff and your own salary are paid from that pool, and only what is left is net profit. NAHB put the remodeler average at a 29.9% gross margin and a 6.3% net margin for fiscal 2024, which means overhead absorbed roughly 23.6 points of revenue.
Do I mark up materials, labor and subs at the same rate?
Use one blended markup on total direct cost. A job heavy on subs still consumes the same estimating, scheduling and warranty time as one you self-perform, so splitting rates by cost type is only worth the extra bookkeeping if your trade mix swings hard between jobs. The calculator runs on total job cost either way, so make sure labor goes in with its labor burden included and not at the bare wage.
What markup do most contractors actually use?
Around 42.7%, if the industry average outcome is your reference. Remodelers averaged a 29.9% gross margin in fiscal 2024 per the NAHB Cost of Doing Business Study, and it takes a 42.7% markup on cost to produce that margin. Markups quoted between contractors vary widely because overhead and trade mix vary. Judge yours by the margin it produces, not by what someone else charges.
A customer asked what my profit margin is. What do I say?
Your margin is not a line item you owe a client, the same way their salary is not one they owe you. The price covers the work, the warranty and the business that stands behind both. If they are pushing on price rather than curiosity, the answer is scope: show what comes out of the job to reach the number they want.
Ready to fill the calendar at the price you just calculated?
Zainfy builds the search and ad systems that keep remodeling and construction contractors booked at their own numbers, for contractors across the USA.
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Zayn founded Zainfy in 2023 and has spent six years in performance marketing for home remodeling and construction companies across the United States. He built this tool set because the contractors he works with were losing more money to pricing math than to any advertising decision.
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