Guide topic
Starting out as self-employed
What actually changes the first time you earn money that nobody withheld tax from.
United States only. These guides cover US federal tax. They do not apply to Canada, the UK or other countries.
Almost nothing has to happen for you to become self-employed in the eyes of the IRS. There is no form to file, no registration to complete and no threshold to cross first — the moment you earn money from work that is not a job, you are a sole proprietor, and the tax rules below apply to you whether or not you have called yourself a business.
That is the single most common surprise here, and it drives everything else on this page. Because nobody withheld anything, you owe self-employment tax on top of income tax, and you generally owe it four times a year rather than in April. The guides below cover the decisions that follow in roughly the order they arrive.
If you only read one, make it the first-year guide — it is the one that explains why the bill is bigger than people expect.
6 guides, in the order they usually matter
- Your first year freelancing: the tax checklist nobody gives you The four things that catch first-year freelancers out, starting with the 15.3% tax you have never seen because an employer paid half of it.
- What does a $100/hour freelance rate actually pay you? About $69 an hour after federal tax and expenses — and closer to $45 for every hour you actually work. The arithmetic between the rate and your bank account.
- Sole proprietor vs self-employed: what's actually the difference? One is a tax status you can't avoid; the other is a business structure you get by default. Almost everyone who is one is also the other — but not quite everyone.
- The $600 myth: do you owe tax on side income under $600? Yes. The $600 figure was your client's paperwork obligation, not a tax threshold — and from 2026 it is $2,000. The number that actually matters is $400.
- You have a job and a side business. How much self-employment tax? Your salary uses up the Social Security wage base first, so the same side profit can cost $5,652 or $1,264 depending on what your job pays.
- Do you need a separate business bank account? Legally, only if you have an LLC. Practically it is the single highest-value hour you can spend on your finances, and it costs nothing.