If you’re working a traditional W-2 job and earning extra income on the side, you’re not alone. Side hustle, often referred to as self-employment, has become incredibly common. This includes any side income, freelancing, consulting, selling products at markets or online, or driving for a rideshare service.
But when tax season rolls around, many people are surprised to learn that having both types of income changes how their taxes work.
The Two Types of Income are Taxed Differently
Your W-2 income is straightforward. Your employer withholds taxes throughout the year, federal, state, Social Security, and Medicare, so you’re already paying as you go. If you’re earning money outside of an employer, you’re considered self-employed. That means:
- No taxes are automatically withheld
- You are responsible for reporting all income
- You may receive forms like a 1099-NEC or 1099-K, but even if you don’t, the income is still reportable
Self-Employment Tax: The Big Surprise
One of the biggest shocks for side hustles is the self-employment tax.
In addition to regular income tax, you’re responsible for:
- Social Security and Medicare taxes (15.3% combined)
At your W-2 job, your employer covers half of this. With self-employment, you pay all of it.
You May Owe More Than You Expect
Because your W-2 job is withholding taxes, but your self-employment does not, you may end up owing money at tax time.
This is especially common if:
- Your side income is significant
- You didn’t make estimated tax payments
- Your W-2 withholding didn’t account for the extra income
Estimated Taxes: Paying As You Go
If your side hustle is consistent, you may need to make quarterly estimated tax payments to avoid penalties. These are typically due April 15th, June 15th, September 15th, and January 15th of the following year.
Making these payments helps spread out your tax burden and prevents a large bill in April.
The Good News - You Can Deduct Expenses
Unlike W-2 income, your self-employment allows you to deduct ordinary and necessary business expenses, such as:
- Supplies and materials
- Mileage or vehicle expenses
- Home office use
- Software or subscriptions
- Marketing and advertising
These deductions reduce your taxable income and can significantly lower what you owe at tax time.
How to Stay Ahead
If you have both W-2 and self-employment income, a little planning goes a long way:
- Set aside a portion of your side income for taxes (often 25–30%)
- Track your expenses throughout the year
- Consider adjusting your W-2 withholding
- Work with a tax professional to avoid surprises
Need Help with Your Specific Situation?
Taxes aren’t one-size-fits-all. Your income, timing, and prior filings all matter, so getting the right advice can save you money and stress. Our tax preparers have the answers for you. Call us today.
Please keep in mind: Tax laws, eligibility requirements, and rates change often, and these lists are not exhaustive. Always contact a tax preparer for the most up-to-date information.
Disclaimer: This blog is for general informational purposes only and does not constitute tax or legal advice. Tax situations vary, and you should consult a qualified tax professional regarding your specific circumstances.