Example 1
1,560
Eight hours a week, 2000 revenue, 200 costs and 12%. About 45 an hour.
Side hustle calculator
Tax and costs come off revenue from a side job. 8 hours a week, 2000 revenue, 200 costs and 12% leave 1,560 net. That is about 45 an hour.
This is not a tax return. Burnout risk on a side hustle is on the friction card. VAT: VAT calculator.
Result
Hours, revenue, costs and tax. The result will show here.
How it works
Net = Revenue × (1 − tax/100) − Costs. Monthly hours = weekly hours × 52 / 12. 8, 2000, 200 and 12% give 1,560 and about 45 an hour. 15, 4500, 800 and 19% give 2,845. 5, 800, 350 and 12% give 354.
Tax must stay under 100. At 100 or more the math will not run. Hours must be above zero. You cannot enter negative revenue or negative costs.
Here you sketch net from four fields. The income-tax page builds a simplified return. VAT separately turns net and gross. This page does not know lump-sum tax or social contributions.
The “Break-even revenue” tile is not the number from the revenue field. It is the line: how much you must take in a month so that tax and costs leave exactly 0. At 200 costs and 12% that is about 227, because you divide 200 by 0.88. Hours do not enter that line. 2000 sits above 227, which is why net is 1,560.
The result stays in the currency you typed. A decimal in 2000.5 works. Do not insert spaces for thousands: type 2000, not 2 000.
The example button fills hours, revenue, costs and tax together. Hours alone are not enough. The result shows monthly net, net per hour, break-even revenue and monthly hours.
How to use
- Type weekly hours, for example 8. Zero will not start the math.
- Type revenue 2000, costs 200 and tax 12. The 12% is your rate, not a figure from the tax office.
- Click Calculate. 8, 2000, 200 and 12% leave 1,560 net. “Break-even revenue” at 200 and 12% is about 227: the take that leaves you at zero. That is not your 2000.
- 15, 4500, 800 and 19% give 2,845. 5, 800, 350 and 12% give 354.
- If 2000 is already after VAT, type it that way. VAT lives on its own page.
Formula
net = revenue × (1 − tax/100) − costs. monthly hours = hours × 52 / 12. tax < 100.
break-even revenue = costs / (1 − tax/100). At 200 and 12% about 227. Hours do not enter this.
Revenue, costs and net
Net = revenue × (1 − tax/100) − costs. 8 h, 2000, 200 and 12% is 1,560.
- Revenue
- Money in for the month. 2000 at 12% with 200 costs leaves 1,560.
- Costs
- What comes off after tax. 200 against 2000 and 12%.
- Net
- 1,560 from the first example. This is not a tax return.
- Break-even revenue
- The monthly take that leaves 0 after tax and costs. At 200 and 12% about 227. Hours do not enter this.
Worked examples
Example 2
2,845
Fifteen hours, 4500 revenue, 800 costs and 19%. More cash, not always a better hour.
Example 3
354
Five hours, 800 revenue and 350 costs at 12%. Still above zero, but little is left.
Suggested uses
- You check whether 8 hours at 2,000 revenue and 200 costs leave 1,560 after 12%.
- Fifteen hours at higher revenue give 2,845. Compare those two months before you add more hours.
Frequently asked questions
What net from 8 h, 2000, 200 and 12%?
1,560. Monthly hours are 8 × 52 / 12 ≈ 34.7, so about 45 an hour. Break-even revenue at 200 and 12% is about 227.
What does break-even revenue mean?
It is the smallest monthly revenue that leaves exactly 0 after tax and costs. At 200 and 12% that is 200 / 0.88, about 227. It does not use hours or the 2000 you typed. Your 2000 sits above that line, which is why net is 1,560.
What about 15, 4500, 800 and 19%?
2,845. That is 4,500 × 0.81 minus 800. Per hour at about 65 h the rate is lower than in the first example because costs and tax are higher.
What about 5, 800, 350 and 12%?
354. After 12% you keep 704, minus 350 costs. The hourly figure at about 21.7 h is modest, but still positive.
Is 12% a lump-sum rate?
No. You type the rate you want. The tax office and social contributions stay outside this sketch.
Does 1,560 go on a return?
No. It is a sketch from four fields. A tax return is separate, with your own reliefs and contributions.
What if tax is 100?
Nothing remains after tax, so the math will not run. The rate must be under 100%.
Where does 34.7 hours come from 8 a week?
8 × 52 / 12. That is an average month, not 4.3 weeks typed by hand.
Do the 200 come off before tax?
No. Tax comes off revenue first, then costs. 2,000 × 0.88 = 1,760, minus 200 = 1,560.
How is this different from VAT?
The card takes income tax and costs off revenue. VAT turns net and gross with a rate, with no side-hustle hours.
Knowledge sources
Side-hustle profit uses the revenue, costs and rate you type. This is not a tax return.
Page updated in 2026.