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Income

Side Hustle Calculator

Enter monthly revenue, expenses, and tax rate to see what your side hustle actually puts in your pocket.

Updated July 2026 · Figures verified July 2026 (sources) · Editorial standards

Monthly net income (after tax)
$1,177.64
Annual net income
$14,132
Self-employment tax
$3,052
Income tax$4,416Annual gross profit$21,600Tax bracket22%

Side Hustle Income

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$
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$2,000/mo revenue minus $200/mo expenses = $21,600/yr gross. After SE tax and income tax: $1,177.64/mo net.Self-employment tax is 15.3% on 92.35% of net profit — the 12.4% Social Security portion stops at the $184,500 wage base for 2026. You can deduct half of SE tax from gross income when calculating income tax. Keep receipts for all business expenses.

Monthly net
$1,177.64
By KalkWiseVerified against official sources Updated July 2026

What is the side hustle calculator — after-tax income from side income?

In short

Side hustle take-home = net profit minus 15.3% self-employment tax (on 92.35% of profit) minus income tax on profit less half of SE tax. $2,000/month revenue with $500/month expenses and a 22% income tax rate nets $11,776/year — about $981/month after taxes.

Calculates your real take-home income from a side hustle after self-employment tax (15.3%) and income tax, showing annual and monthly net income.

How to use this calculator

  1. 1Enter monthly revenue from your side hustle.
  2. 2Enter monthly business expenses.
  3. 3Enter your estimated income tax rate (your marginal bracket from your main job).

The formula

SE tax=net profit×92.35%×15.3%
take-home=net profit−SE tax−income tax
Net Profit = (R − E) × 12; SE Base = Net Profit × 0.9235; SE Tax = 12.4% Social Security (up to the wage base) + 2.9% Medicare on SE Base; Taxable = Net Profit − SE/2; Income Tax = Taxable × T; Take-Home = Net Profit − SE Tax − Income Tax
R
— Monthly revenue
E
— Monthly expenses
SE
— Self-employment tax rate
T
— Income tax rate

Worked example

The scenario

$2,000/month revenue, $500/month expenses, 22% income tax rate.

gives

The result

Net profit: $18,000/year. SE base: $16,623 (below the Social Security wage base, so the full 15.3% applies). SE tax: $2,543.32. Income tax: ($18,000 − $1,271.66) × 22% = $3,680.23. Take-home: $11,776.45/year (about $981/month).

Common use cases

  • Know what you'll actually keep from gig or freelance work.
  • Decide if a side hustle is worth the time investment.
  • Plan quarterly estimated tax payments.
  • Compare net income across different side hustle ideas.

Limitations & assumptions

  • SE tax is calculated on 92.35% of net profit per IRS rules (one-half SE tax is deducted).
  • The Additional Medicare Tax of 0.9% on earnings above $200,000 (single), $250,000 (married filing jointly), or $125,000 (married filing separately) is not modeled.
  • Does not model Section 199A 20% QBI deduction available to some self-employed.
  • Actual income tax depends on how side income stacks on top of main job income.
  • State self-employment taxes and state income taxes vary.

Frequently asked questions

Self-employed workers pay both the employee (7.65%) and employer (7.65%) portions of Social Security and Medicare, totaling 15.3%. However, you can deduct half of SE tax from your income, effectively reducing it to ~14.1% net cost. Employees only pay 7.65%.

Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.