How to Save for Taxes When Self-Employed
By Justin Frazier·3 min read·Updated July 2026
The bite is bigger than most people expect. According to the IRS, self-employment tax alone is 15.3 percent of your net earnings: 12.4 percent for Social Security and 2.9 percent for Medicare. That is before federal and state income tax, and it applies even if your income is too low to owe income tax at all.
The tax is not your money, so do not treat it like it is
A job withholds tax before you ever see your pay. On your own, the full payment hits your account, and it is easy to forget a chunk belongs to the government. Spend it and the bill still comes. The fix is to separate the tax the moment money arrives.
The set-aside habit
Move a fixed share of every payment, often a quarter to a third, into a separate account the day it lands. You never see it as spendable, so the tax bill becomes a transfer instead of a crisis. Out of sight is the whole trick.
Where does a quarter to a third come from? Start with the 15.3 percent self-employment tax, add your federal bracket, add your state. Our free after-tax rate calculator does this math for all 50 states and shows what to set aside from each job.
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