A side hustle can transform your monthly cash flow, but the number people usually quote — "I make $1,000 a month freelancing" — is a gross figure that hides two important truths: you have not paid tax on it yet, and gig income is self-employment income, which carries an extra self-employment tax for Social Security and Medicare. This side hustle income calculator adds up your freelancing, Etsy shop, rideshare, and any other gig streams, annualizes the total, applies your estimated combined tax rate, and shows you the net amount you actually keep each month and each year.
Slide every field and the result card updates instantly. It is built around the everyday question: how much extra money is this work really putting in my pocket after taxes?
How to Use
- Enter Freelancing / Contract Work — the after-platform amount you bill each month. If a client pays you through Upwork or Fiverr, use what lands in your bank account, not the sticker price.
- Set your Etsy / Online Shop earnings. Use net sales after platform fees; cost of goods and supplies are separate business expenses you track on your own.
- Add Rideshare / Delivery income from Uber, Lyft, DoorDash or Instacart. This is gross driver earnings before gas, mileage depreciation, and app fees.
- Fill Other Side Hustles with tutoring, affiliate marketing, renting out a room, pet sitting, or anything else that hits your bank account every month. Leave it at zero if you have no extra stream.
- Choose your Estimated Combined Tax Rate. If you do not know it, 25% is a realistic middle-of-the-road estimate for many US side earners; higher earners or those in expensive states may use 30–35%.
- Read the result card: Total Monthly Side Income is your gross monthly gig total, Annual Gross Side Income annualizes it, Estimated Annual Tax is what the government takes, and the two highlighted lines show your Net Monthly Take-Home and Net Annual Side Income — the real spendable number.
The math is deliberately transparent: total monthly gigs, times twelve, minus your combined tax rate. There are no hidden formulas, because the whole point is to make your after-tax side earnings obvious at a glance.
The Formula Behind the Numbers
The calculator uses a four-line calculation:
- Total Monthly Income = freelancing + Etsy + rideshare + other.
- Annual Gross Income = total monthly income × 12.
- Estimated Annual Tax = annual gross × combined tax rate ÷ 100.
- Net Annual Income = annual gross − estimated annual tax.
Worked example: $500 freelancing, $300 Etsy, and $200 rideshare totals $1,000 per month, or $12,000 per year before tax. At a 25% combined rate, the estimated tax is $3,000, leaving $9,000 per year — about $750 per month — as true take-home. That gap between the $1,000 you quote to friends and the $750 you actually keep is exactly why gross gig income misleads so many new side-hustlers.
Keep in mind that self-employment income over $400 triggers the 15.3% self-employment tax on top of income tax, which is why the combined rate field exists rather than a single "income tax" assumption.
Why Gross Gig Income Lies to You
New earners routinely confuse three different numbers:
- Gross revenue — everything the app or customer pays you.
- Net business profit — after fees, supplies, mileage, and other deductible expenses.
- Net take-home pay — after self-employment and income tax.
If you drive Uber and earn $1,000 gross in a month, gas, maintenance, and mileage depreciation can realistically consume $250–$400 of that. Then tax is applied to your profit, not the gross. This calculator starts from the monthly amounts you enter and applies your tax rate directly, so it is best used with figures you already believe are close to your take-home before tax. For a deeper tax picture, pair it with the self-employment tax rules from the IRS.
Examples
Example 1 — The classic three-gig stack. A teacher bills $500/month on Upwork, nets $300/month selling printables on Etsy, and drives Uber $200/month on weekends. Combined gross side income is $1,000/month, or $12,000/year. At a 25% combined tax rate, estimated tax is $3,000 and net annual side income is $9,000 — roughly $750/month that can go straight to a down-payment fund.
Example 2 — A full-time Etsy business. A seller grows her shop to $4,000/month while keeping freelancing and rideshare at zero. Gross annualized income is $48,000. At a higher 30% combined rate (federal plus a moderate state plus SE tax), estimated tax is about $14,400, leaving $33,600 net per year — and a clear signal that she should be making quarterly estimated payments.
Example 3 — A scaling freelance practice. A designer bills $8,000 in a single month from two retainer clients. Annualized gross is $96,000; at a 35% combined rate the estimated tax is $33,600 and net annual side income is $62,400, or about $5,200 a month after tax. The calculator scales cleanly from a few hundred dollars a month up to five-figure single months so you can sanity-check a growing book of business.
FAQ
How do I calculate my side hustle income after tax?
Add up all your monthly gig earnings, multiply by 12 to annualize, then subtract your combined tax rate. For example, $1,000/month across freelancing, Etsy, and rideshare becomes $12,000/year; at a 25% rate you owe about $3,000 in tax and keep $9,000. Enter your own streams and rate above to see your exact number.
What tax rate should I use for side hustle income?
Side earnings over $400 are self-employment income, so you owe the 15.3% SE tax (Social Security and Medicare) plus ordinary income tax and any state tax. A combined rate of 25% is a reasonable default for many earners; use 30–35% if you are in a higher bracket or a high-tax state, and consult a tax pro for your exact situation.
Do I owe self-employment tax on every gig?
If your net self-employment earnings are $400 or more in a year, you generally must file Schedule SE and pay the 15.3% self-employment tax. Below $400 of net SE income, that SE filing requirement usually does not apply, though you may still owe regular income tax.
Is Etsy income taxable?
Yes. Net Etsy sales (after seller fees and deductible cost of goods) are self-employment income and must be reported on Schedule C. Even if you never receive a 1099-K, the IRS expects you to report all taxable income. This calculator helps you estimate the annual total before you set money aside for tax.
How much should I set aside from gig income for taxes?
A common rule of thumb is to set aside 25–30% of your net self-employment income. If you expect to owe more than $1,000 when you file, the IRS generally wants you to make quarterly estimated tax payments in April, June, September, and January. Use the Estimated Annual Tax figure here as a planning baseline.
Can I deduct expenses from my side hustle income?
Yes. The IRS lets you deduct ordinary and necessary business expenses — mileage, home office portion, supplies, software subscriptions, and health insurance premiums for self-employed people. Your taxable profit is gross income minus these deductions, which lowers both your income tax and your self-employment tax. Track receipts all year.
Does this calculator handle negative or zero income?
If a month brings in nothing, leave the field at zero and the result is simply zero across the board. The calculator rejects any negative monthly amount, because a negative "income" stream is not income at all — it is a business loss, which should be recorded separately on your tax return rather than as negative earnings.
Disclaimer
This side hustle income calculator is provided for informational purposes only and does not constitute tax, legal, or financial advice. Estimates use the inputs you enter and a simple annualize-and-tax model; actual tax owed depends on your filing status, deductions, business expenses, state of residence, and other factors, and may differ significantly. Self-employment tax and quarterly payment rules change. Always confirm your tax position with a qualified tax professional before filing or making estimated payments.