Most freelance rate calculators stop at "income divided by hours." This one asks a harder, more useful question: what's the absolute minimum you can charge and still cover your business costs, your rent and groceries, and the taxes that come out before any of it reaches your pocket? Get that floor right first, and every rate you charge above it is a real decision instead of a guess.
How it works
The calculator starts with two monthly totals: your business costs (software, insurance, equipment, coworking) and your living expenses (rent, food, insurance, debt payments — everything it takes to run your life). Add those together and you get the after-tax income you need every month just to break even.
The catch is that taxes come out of revenue before that money is spendable, so "after-tax income you need" is not the same number as "revenue you need to bring in." The calculator grosses that figure up by dividing by (1 − tax percent), the same math used to convert a target take-home paycheck into the gross salary that produces it. That gives your minimum monthly revenue. Divide by your billable hours per month and you get the minimum hourly rate — the lowest you can charge without going backward. Multiply that by 1.2 and you get a recommended rate, a starting cushion above the bare floor.
Worked example
Say your business costs run $800 a month, your living expenses are $3,000 a month, you estimate 25% of revenue goes to combined income and self-employment tax, and you can bill 100 hours a month.
- Costs to cover: $800 + $3,000 = $3,800
- Gross up for tax: $3,800 ÷ (1 − 0.25) = $3,800 ÷ 0.75 = $5,066.67 minimum monthly revenue
- Minimum hourly rate: $5,066.67 ÷ 100 = $50.67
- Recommended rate: $50.6666… × 1.2 = $60.80
Notice the minimum hourly rate and recommended rate are both computed from the unrounded monthly revenue figure, not from the rounded $5,066.67 — that keeps the three numbers internally consistent even after each one is rounded to the cent.
How to interpret your result
The minimum hourly rate is a break-even line, not a target. At that rate, every billable hour goes straight to costs, expenses, and taxes — there's nothing left for a slow month, an unpaid invoice, a new laptop, or retirement savings. Treat it as the number below which you are actively losing ground, not as something to aim for.
The recommended rate builds in a 20% buffer, but 20% is a starting point, not a guarantee. If your client pipeline is unpredictable, if you have no cash reserve, or if you want to save aggressively, push the multiplier higher — 1.3 or 1.4 isn't unusual for freelancers who've been burned by a dry month before. And remember the billable-hours input matters as much as the rate: quoting a low number here (say, 80 hours instead of 120) is often more realistic than it looks on paper, since admin, proposals, and unpaid pitch work eat into every freelancer's calendar.
Methodology & sources
The formula is minimumMonthlyRevenue = (monthlyBusinessCosts + monthlyLivingExpenses) / (1 − taxPercent/100), then minimumHourlyRate = minimumMonthlyRevenue / billableHoursPerMonth, and recommendedRate = minimumHourlyRate × 1.2 — all computed from unrounded intermediate values before the final rounding to the cent.
Grossing up a net figure by dividing by one minus a tax rate is standard practice for turning a take-home target into the revenue that produces it; the IRS's estimated taxes guide covers how self-employed income gets taxed across the year, which is the piece of the puzzle this calculator asks you to estimate as a single blended percentage. For the cost side of the equation, the SBA's own explainer on the break-even point walks through the same fixed-cost-versus-revenue logic this calculator uses, just applied to a product business instead of an hourly rate.