Is a Side Hustle Worth It After Taxes? The Real Math

A side hustle is worth it after taxes when the after-tax hourly rate beats what you could earn putting those same hours somewhere else. The tax bill is bigger than most people expect, because side income gets hit twice, and the right comparison is not against zero. It is against your day job and against the raise you have not asked for yet.

Quick Answer: Expect roughly 30% of gross side hustle income to disappear to federal taxes. Self-employment tax of 15.3% stacks on top of your regular income tax rate. On $12,000 of gross side income with $1,500 of expenses, a single filer in the 22% bracket keeps about $6,870. Whether that is worth it depends entirely on your after-tax hourly rate.

How much of side hustle income goes to taxes?

Plan on about 30% of gross going to federal taxes, because two separate taxes stack on the same dollars. The first is self-employment tax. When you are an employee, you and your employer split Social Security and Medicare taxes down the middle. When you work for yourself, you pay both halves. The IRS puts the self-employment tax rate at 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare, and it kicks in once your net earnings hit $400. Not $400 of profit after a good year. Four hundred dollars.

The second is ordinary income tax, at whatever bracket your side income lands in. Because it sits on top of your salary, it is taxed at your highest rate, not your average one. For 2026, the 22% bracket for single filers starts at $50,400 of taxable income and runs to $105,700, which is where a lot of people a few years into a real salary sit. So the marginal cost of your side hustle dollar is 22% plus 15.3%, less a couple of adjustments that soften it.

Those adjustments are real, though. Self-employment tax applies to 92.35% of your net profit rather than all of it, and you get to deduct half of the self-employment tax you paid when figuring your adjusted gross income. Together they knock the effective rate down a few points.

What $12,000 of side income actually leaves you with

Roughly $6,870, or $572 a month, once expenses and federal tax come out. Let's say you're 29, you earn $85,000 at your day job, and you pick up freelance work that brings in $1,000 a month. You spend $1,500 over the year on software, gas, and gear. Here is the whole calculation:

Line	Amount
Gross side income	$12,000
Business expenses	$1,500
Net profit	$10,500
Self-employment tax base (92.35% of net profit)	$9,697
Self-employment tax at 15.3%	$1,484
Deduction for half of self-employment tax	$742
Side income subject to income tax	$9,758
Federal income tax at 22%	$2,147
Total federal tax	$3,631
What you keep	$6,870

That $3,631 is 30.3% of the gross. And it is federal only. Most states tax this income too, which typically adds another 3% to 6% and pushes the real number toward a third of everything you earned. If you're wondering where the remaining $572 a month should go, our guide on how much to invest each month works through the sequencing.

How to figure your real after-tax hourly rate

Divide what you keep by the hours you actually spent, then compare it to your day job's after-tax hourly. This is the number that settles the question, and almost nobody calculates it.

Stay with the example. Six hours a week for 52 weeks is 312 hours. Take the $6,870 you kept and divide: $22.02 an hour after tax.

Now do the same for the day job. That $85,000 salary, for a single filer taking the 2026 standard deduction of $16,100, carries about $9,870 in federal income tax plus $6,502 in Social Security and Medicare withholding. Take-home is roughly $68,628, and across 2,080 working hours a year that is $32.99 an hour after tax.

So the side hustle pays about two thirds of what the day job pays, per hour, for hours you give up your evenings to work. That does not make it a bad idea. It makes it a specific trade you should be making on purpose. For some people the answer flips immediately: the work is enjoyable, or it builds a skill, or it is the first version of something bigger. For others, seeing $22 an hour written down is the moment they stop.

Which deductions actually change the answer

Mileage and the ordinary costs of doing the work move the number most, because every deductible dollar saves you both taxes at once. A dollar of legitimate expense saves you 22 cents of income tax and about 14 cents of self-employment tax, so it is worth roughly 36 cents rather than 22.

• Mileage. The IRS standard mileage rate for business driving in 2026 is 72.5 cents a mile from January through June and 76 cents from July through December. Two hundred business miles a month is roughly $1,800 a year in deductions, which is real money if you are delivering, driving, or visiting clients.
• The half of self-employment tax you already paid. Automatic, but only if you or your software actually claims it.
• Equipment, software, and supplies used for the work, at the business-use percentage. A laptop you use 40% for the side hustle is 40% deductible, not 100%.
• Home office, if you have space used regularly and exclusively for the business. The word doing the work there is "exclusively", and a kitchen table does not qualify.
• A solo 401(k). This is the lever people miss. Self-employment income gives you access to a retirement account you cannot open any other way, and contributions come off the top. If the side hustle is mostly funding your future anyway, sheltering it changes the math more than any expense does. Our breakdown of tax-advantaged accounts covers how these stack with a workplace plan.

There is also a qualified business income deduction that can trim the income-tax half for many self-employed people. It does not touch self-employment tax, so treat it as a bonus rather than as part of your base plan.

The quarterly tax bill nobody warns you about

If you expect to owe $1,000 or more when you file, the IRS expects estimated tax payments four times a year, not one payment in April. In the example above the federal bill was $3,631, well past that line, so this applies.

There are two ways to handle it, and one of them is easier than people assume. You can send quarterly payments yourself, or you can increase the withholding on your W-2 paycheck to cover the side income, which keeps everything on one form and removes the deadlines from your calendar entirely. We recommend the second for anyone whose side income is a predictable monthly number.

Either way, open a separate savings account and move 30% of every payment into it the day it arrives. Not at the end of the month. The day it arrives. Treating that money as never having been yours is the single habit that keeps a good side-hustle year from turning into a surprise bill, and it works for the same reason a real emergency fund works: the money is somewhere you have to think before touching it.

When a raise is worth more than a side hustle

Almost always, hour for hour, because a raise costs a few hours once and pays every year afterward. Compare the two honestly. Twelve thousand dollars of side income cost 312 hours and netted about $6,870. A $10,000 raise, taxed at 22% plus 7.65% of payroll taxes, nets roughly $7,035. It costs a few hours of preparation and one uncomfortable conversation. And unlike the side hustle it compounds, because next year's raise is calculated off the higher number, your 401(k) match grows with it, and you do not have to do it again next January to keep the money. The same logic applies when you are weighing an offer, which is why it helps to know how salary and benefits actually compare before you pick.

The Federal Reserve's survey of household finances found that 20% of adults did some form of gig work in the prior month, that 70% of them spent under five hours a week on it, and that only 21% considered it their main job. Most side hustles are small by design. That is fine. It just means the few hours a year you could spend on negotiating a higher salary are usually the highest-paid hours available to you.

A side hustle wins on the things a raise cannot give you: income that does not depend on one employer, a skill you own, and optionality. Those are good reasons. "I need more money" on its own usually is not, because there are cheaper ways to get it. At Planned, the version of this we see work is a side hustle with a job attached to it, one specific thing the money is for, rather than a vague second income that quietly funds a bigger lifestyle. If you have watched that happen before, our piece on why raises stop making you richer is the same trap with a different label.

Frequently Asked Questions

Do I owe taxes on side hustle income if I never got a 1099?

Yes. Income is taxable whether or not a form shows up, and the form is a reporting convenience for the payer, not the thing that creates the obligation. Separately, once your net earnings from self-employment reach $400 for the year, you have to file Schedule SE and pay self-employment tax even if you owe no income tax at all.

How much should I set aside for side hustle taxes?

Thirty percent of every gross payment is the right default for most people in the 22% bracket, and 35% if you live in a state with meaningful income tax. Move it the day the money lands, into an account you do not spend from. If you over-save, the leftover in April is a nice problem. If you under-save, you are borrowing from a version of yourself who cannot say no.

Will forming an LLC lower my side hustle taxes?

Usually not. A single-member LLC is disregarded for federal tax purposes by default, so the income flows to the same Schedule C and the same self-employment tax as before. An LLC is a liability and legitimacy decision, not a tax strategy. The election that can change your tax picture is S corporation status, and it generally only pencils out at profit levels well above a typical side hustle.

Can I deduct my phone and car if I use them for the side hustle?

Only the business-use share, and only if you can show how you arrived at it. If 30% of your phone use is for the side hustle, 30% of the bill is deductible. For a car you can take actual expenses or the standard mileage rate, but you need a log of business miles either way. Deducting 100% of something you obviously also use personally is the fastest way to make a return interesting to the IRS.

The bottom line

Run the after-tax hourly number before you decide, not after a year of doing the work. If it beats what your time is worth elsewhere, or if the hustle buys you a skill or an income stream you actually want, take it and set aside 30% from day one. If it does not, you have just learned that the highest-paid thing on your calendar is the raise conversation you have been putting off.