How Much Tax Will You Pay on Side Hustle Income?
Most tax calculators treat your income as one lump sum. This one shows what really happens when you stack 1099 income on top of your W-2 job — including the 15.3% self-employment tax that catches most people off guard.
Your Income
For every $1 you earn from your side hustle, you keep
$0.65
Your side hustle is taxed at an effective 34.6% (federal income tax + self-employment tax)
Self-Employment Tax Breakdown
As a 1099 contractor, you pay both the employer and employee portions of Social Security and Medicare taxes — 15.3% total on 92.35% of your net self-employment income.
Social Security (12.4%)
$2,290
Medicare (2.9%)
$536
Deductible Half
-$1,413
You can deduct 50% of your SE tax from your adjusted gross income, reducing your federal income tax slightly.
Your Side Hustle Bottom Line
Why Side Hustle Income Is Taxed Differently
When you earn money as a W-2 employee, your employer pays half of your Social Security and Medicare taxes (7.65%). You only see your half deducted from your paycheck.
As a 1099 contractor or freelancer, you are both the employer and the employee. That means you pay the full 15.3% self-employment tax — 12.4% for Social Security (up to the wage base of $168,600 in 2024) and 2.9% for Medicare (no cap).
On top of that, your side hustle income stacks on top of your W-2 salary, so every dollar is taxed at your highest marginal bracket. If your W-2 job puts you in the 22% bracket, your side hustle income starts there — not at the bottom.
How to Reduce Your Side Hustle Tax Bill
- Track every business expense. Home office, internet, software, supplies, mileage — these reduce your net self-employment income, lowering both income tax and SE tax.
- Consider an S-Corp election. If your side hustle earns over $40-50K, forming an S-Corp lets you pay yourself a reasonable salary and take the rest as distributions, avoiding SE tax on the distribution portion.
- Open a Solo 401(k) or SEP IRA. You can contribute up to $23,000 (employee) plus 25% of net self-employment income (employer) to a Solo 401(k), reducing your taxable income significantly.
- Pay quarterly estimated taxes. Avoid a surprise tax bill (and potential penalties) by paying estimated taxes each quarter using IRS Form 1040-ES.
Frequently Asked Questions
How much tax do I pay on side hustle income?
Side hustle income is subject to both federal income tax at your marginal rate and self-employment tax of 15.3% (12.4% Social Security + 2.9% Medicare). You can deduct half of SE tax from your income.
Do I need to pay quarterly estimated taxes?
Yes, if you expect to owe $1,000 or more in taxes. Quarterly payments are due April 15, June 15, September 15, and January 15. Missing payments can result in penalties.
What is self-employment tax?
Self-employment tax covers Social Security and Medicare contributions that would normally be split between you and an employer. As self-employed, you pay both halves — 15.3% total on 92.35% of net earnings.
What can I deduct as a side hustler?
Common deductions include home office expenses, equipment, software subscriptions, mileage, health insurance premiums, and retirement contributions (SEP IRA, Solo 401k).
What is the QBI deduction?
The Qualified Business Income deduction lets sole proprietors deduct up to 20% of qualified business income, reducing taxable income. It phases out at higher income levels.