When you teach fitness on a 1099, no one withholds taxes from your pay. Every studio hands you the full amount, and the tax bill arrives later — all at once — unless you've been setting money aside. The hardest part isn't paying; it's not having saved enough.
The short answer: 25–35%
For most multi-studio instructors, setting aside 25–35% of your 1099 income is a safe starting point. Lower end if you have a lot of deductible expenses and live in a no-income-tax state; higher end if you earn more or live somewhere like California or New York.
That range isn't a guess — it's the sum of three separate taxes you owe as a self-employed instructor.
Why self-employment tax is the surprise
The tax that catches new instructors off guard is self-employment tax: 15.3%. It covers Social Security and Medicare — the part an employer would normally pay half of. When you're self-employed, you pay both halves.
It's calculated on about 92.35% of your net income (income minus expenses), so on $40,000 of net teaching income you'd owe roughly $5,650 in self-employment tax alone — before any income tax.
Then there's income tax
On top of self-employment tax, your teaching income is also subject to federal income tax, and in most states, state income tax. How much depends on your filing status, your total income, and where you live.
The good news: half of your self-employment tax and the standard deduction both reduce the income that gets taxed, which is why the all-in rate usually lands in that 25–35% range rather than higher.
Deductions lower the number
The fastest way to shrink your tax bill is to track your business expenses. Certifications, mileage between studios, music subscriptions, equipment, and liability insurance are all deductible — and every dollar you deduct is a dollar you aren't taxed on. We cover this in detail in Tax Deductions Every Fitness Instructor Should Know.
Pay quarterly, not all at once
The IRS expects self-employed people to pay estimated taxes four times a year (Form 1040-ES), not in one April lump sum. The deadlines are usually April 15, June 15, September 15, and January 15. Paying quarterly keeps you from owing a penalty — and from staring down a year's worth of taxes at once.
A simple habit: every time a studio pays you, move 30% into a separate savings account. When a quarterly deadline comes, the money is already there.
Get your real number
A rule of thumb is a starting point, not your actual bill. To see a real estimate for your income, filing status, and state, use the free fitness instructor tax calculator — it breaks down self-employment, federal, and state tax and tells you what to set aside each quarter.
And if you'd rather not do this math by hand all year, ClassTally tracks your pay across every studio and estimates your quarterly taxes automatically.