What Is Markup vs Margin? The Number You Add Is Not the Number You Keep
Markup and margin measure the same gross profit from two different starting points. For a contractor, confusing them turns a price that looks profitable into a shortfall. For a homeowner, the difference explains why no contractor can build your job for what the materials and labor cost.
Definition
If you're a remodeler and your markup is less than 1.5, you are going out of business. No ifs, ands, or buts about it.
That is a claim from running a remodeling business rather than a measured figure, and it lands close to the industry: the National Association of Home Builders reports a 29.9% average gross margin for residential remodelers, which converts to a markup of 0.299 / (1 - 0.299) = 0.427, a 1.43 multiplier. Two different routes to nearly the same floor. Above it nobody is automatically safe either, because the right markup comes from your own overhead, which is what the rest of this page is about.
Markup and margin describe the same gross profit dollars. The difference is what you measure them against.
Markup is measured against job cost:
Margin is measured against selling price:
Markup is inherently a multiplier. Adding 50% to cost is the same as multiplying cost by 1.50; the percentage and the multiplier are the same move written two ways.
That difference in denominator is why the percentages differ. And there is a more useful way for a contractor to think about it: your selling price has to do three things. Pay the direct job cost, produce enough gross profit to cover overhead, and leave the profit the business is supposed to earn.
Gross profit is not net profit. Gross profit is the pool of money left after direct job costs are paid; overhead gets paid from that pool, and what remains is net profit.
That gives markup a specific job: it converts direct job cost into a selling price that can fund both overhead and profit. With overhead and profit as shares of the selling price:
Done correctly, markup and gross margin are two routes to the same selling price.
Job cost is the material and the hours on the project. Overhead is everything else the business needs in order to perform it: liability and workers compensation insurance, the truck and the tools, licensing, the time spent estimating jobs that never sell, and a reserve that keeps the doors open through a slow month or an injury. None of it appears on a line item, and all of it is paid before the contractor earns anything. Every category is listed in the 21 overhead categories guide.
Two of those non-job costs are easy to miss. The first is the owner's salary for running the business, which is separate from the wage earned for doing the work on any one job. The second is net profit, which is the return for owning the business rather than working in it. Those are separate on purpose. They are three different tests of whether a contracting business works at all.
Wages prove the job works. Salary proves the business works. Profit proves ownership works.
A contractor who takes one draw at the end of the month cannot tell which of the three they were paid for, and that is why a price covering only job cost is not a bargain. It is a business quietly running down.
What contractors actually earn is smaller than most people assume. The National Association of Home Builders surveys residential remodelers every few years for its Remodelers' Cost of Doing Business Study. In fiscal year 2024 the companies surveyed averaged $2.7 million in revenue, spent 70.1% of it on cost of sales, and carried operating expenses of 23.6% of revenue. That left an average gross profit margin of 29.9% and an average net profit margin of 6.3%.
That 6.3% was the highest remodelers had reported since 1996, and it followed 5.2% in 2018 and 4.7% in 2021. Read the series and the pattern is clear: gross margin near 30% is normal, and almost all of it is consumed before it reaches the bottom line. Emmanuel Forge sets a target of at least 8% net in the Minimum Pricing System, deliberately above what the surveyed industry has averaged in any recent year.
Profit is also the readout on whether the rest of the system is working. Job costs that drift and overhead that is guessed both erode it, so a year that misses the profit target is usually reporting a problem upstream rather than a problem with profit itself.
If you're not hitting your profit goals, something's wrong. If you're never hitting your profit goals, you need to pick a different job.
That is also how the target gets chosen. Profit is what counterbalances the option to walk away and do something else, so the question behind the number is what the hours, the risk and the uncertainty have to be worth. Forge treats 8% net as the floor, 10% as achievable with an accurate and disciplined system, and 15% as possible but very difficult, with much beyond that unlikely. He also puts the working average near 5%, and cautions that self-reported profit tends to run high because one-person operations conflate the field wage, the salary and the profit into a single draw.
Two limits on those figures. The surveyed firms average $2.7 million in revenue, which is far larger than the solo and small crews this site is written for, so the percentages describe the industry rather than any one business. And they are survey averages of self-reported results, not a benchmark any individual contractor should price against. Your own overhead is the only input that sets your markup.
- Margin here means gross margin; net margin comes after overhead.
- Markup applies to direct job cost only: labor, materials, and job-specific costs.
Distinctions
| Term | Meaning | Decision |
|---|---|---|
| Markup | Percentage added to job cost. | Use it to turn estimated cost into a selling price. |
| Gross margin | Gross profit as a share of sales. | Use it to check whether the price funds overhead and profit. |
| Net margin | Profit left after overhead. | Use it to judge what the business actually earned. |
Worked example
This calculation uses a real job instead of a round-number exercise: the 5x8 bathroom remodel published on this site, with a direct job cost of $19,867.38 and 51 itemized rows showing the rates and quantities behind it.
5x8 bathroom remodel, fully itemized →
Inputs
- Direct job cost: $19,867.38, from the itemized bathroom estimate published on this site
- Illustrative markups from the published article: 30%, 50%, 80%
- Conversion formulas: margin = markup / (1 + markup); required markup = margin / (1 - margin)
- Markup multiplier: price = job cost x 1 / (1 - overhead - profit), overhead and profit as shares of the selling price
| Markup | Selling price | Gross profit | Actual margin |
|---|---|---|---|
| 30% | $25,827.59 | $5,960.21 | 23.1% |
| 50% | $29,801.07 | $9,933.69 | 33.3% |
| 80% | $35,761.28 | $15,893.90 | 44.4% |
| To earn this margin | Apply this markup | As a multiplier |
|---|---|---|
| 20% | 25% | 1.25x |
| 25% | 33.3% | 1.33x |
| 30% | 42.9% | 1.43x |
| 35% | 53.8% | 1.54x |
| 40% | 66.7% | 1.67x |
| 50% | 100% | 2.00x |
Actions
- The gross profit dollars are the same whether you describe them through markup or margin; what changes is the base used to calculate the percentage. That is why you cannot take a required margin and use the same number as your markup
- Work backward from the result the business needs. A 50% margin means direct job cost can consume 50% of the selling price: $19,867.38 / 0.50 = $39,734.76, which requires a 100% markup
- Entering 50% as markup instead prices the bathroom at $29,801.07 rather than $39,734.76; the shortfall is $9,933.69 on one job
- The same mistake at smaller percentages: a business that needs a 35% gross margin but applies a 35% markup ends up at 25.9%
- Better, build the requirement from your own numbers. Overhead at 25% and a profit target of 10% of the selling price together need a 35% gross margin, leaving 65% of sales for direct job cost: 1 / (1 - 0.25 - 0.10) = 1 / 0.65 = 1.54x, so $19,867.38 / 0.65 = $30,565.20, a 53.8% markup, matching the 35% margin row in the table
- The sequence that works: job cost -> required gross margin -> correct markup -> selling price. Not: margin target -> same percentage as markup
Markup and margin are not interchangeable. The correct markup is calculated from the gross margin the business needs, using required markup = margin / (1 - margin). That required gross margin, in turn, comes from the overhead and profit the business must fund.
Use and limits
How to use it
4 rulesPrice with markup if that suits your process.Just calculate that markup from the margin the business needs, instead of copying a margin percentage into the estimate.
Build the multiplier from your own numbers.1 / (1 - overhead share - profit share). Overhead and profit are non-job costs, and the markup exists to produce the gross profit that covers them.
Do not borrow another contractor's markup.A company that looks similar can carry different overhead, sales volume and profit targets, which produce a different multiplier.
Markup is not negotiable downward.It represents overhead and profit at all times, so discounting below it does not discount profit, it discounts the money that keeps the business running. Reduce the scope instead, or decline the job.
What it is not
5 cautionsMarkup is not what the contractor earns.It covers overhead first, and net profit is what remains after overhead is paid.
Gross margin is not the finish line.A job can produce gross profit while the company still finishes with weak net profit, if overhead is too high.
The 30, 50 and 80% markups are not recommendations.They are illustrations from the published bathroom price scenarios.
The 25% overhead and 10% profit shares are not benchmarks.They are arithmetic illustrations.
Category drift changes the number without changing the money.Moving an expense between direct job cost and overhead changes reported gross margin without creating any more net profit.
About these figures
Next step
Start with your own costs, not somebody else's percentage. Inspect the full 5x8 bathroom estimate and the published data behind it, or describe your own job in the free estimator. Once you have direct job cost, determine the gross margin your business needs, convert that margin to the required markup, and check the selling price before it goes to the customer. For the same arithmetic run across a whole year of work, see the worked models for a solo contractor pricing fixed-price projects and one billing by the hour. If you are a homeowner comparing quotes, the useful next step is not a number. Ask each contractor what is included and what is excluded, and compare those lists before comparing the prices. Two quotes that differ by thousands are usually two different scopes of work.
Sources & provenance
- 5x8 bathroom remodel, published itemized estimate (data file) Clamp Research (owner-supplied)
- 5x8 Bathroom Remodel Cost (2026 Baseline) Clamp Research (owner-supplied)
- Remodelers Saw Profit Margin Gains in 2024 National Association of Home Builders (research)