What you can deduct as a self-employed person

If you work for yourself, you pay both the employer and employee portions of Social Security tax — a total of 15.3 percent on your net earnings (12.4 percent for Social Security, 2.9 percent for Medicare). The federal government lets you deduct half of what you pay as a business expense on your tax return. This is called the self-employed tax deduction, and it reduces your taxable income, not your tax bill directly.

You do not have to itemize deductions to claim this. It appears on Schedule SE (Self-Employment Tax) and flows to your Form 1040. The deduction is available to anyone with self-employment income — freelancers, sole proprietors, partners in partnerships, and members of limited liability companies (LLCs) who are treated as self-employed.

The amount you can deduct changes each year because it is half of what you actually owe. If your net self-employment income is higher one year, your deduction is higher the next year when you file taxes for that year.

Key Takeaways

  • Self-employed workers deduct half of their total self-employment tax (Social Security and Medicare combined) on their federal tax return.
  • You calculate the deduction on Schedule SE, which you file with your Form 1040; it reduces your taxable income but not your tax liability directly.
  • The deduction is based on your actual net self-employment income, so it changes year to year as your earnings change.
  • You cannot claim this deduction if you are an employee with a W-2 job, even if you have side self-employment income.
  • The deduction is separate from estimated quarterly tax payments; you still owe self-employment tax in full, but you get a deduction when you file.

How the deduction is calculated

The process starts with your net self-employment income — your business revenue minus business expenses. You report this on Schedule C (Profit or Loss from Business) if you are a sole proprietor, or on the equivalent form for your business structure.

On Schedule SE, you multiply your net self-employment income by 92.35 percent. This accounts for the fact that you can deduct half of self-employment tax as a business expense, which lowers the income subject to self-employment tax in the first place. The result is your total self-employment tax. Half of that amount is your deduction.

The math works like this: if your net self-employment income is $50,000, you multiply by 92.35 percent to get $46,175. You then apply the 15.3 percent self-employment tax rate to get $7,065.68 in self-employment tax. Half of that — $3,532.84 — is your deduction on Form 1040.

Who can claim this deduction

You can claim the self-employed tax deduction if you have net self-employment income of $400 or more in a tax year. This includes income from a sole proprietorship, a partnership, or an LLC taxed as a partnership or sole proprietorship. You must file Schedule SE to report the deduction.

You cannot claim this deduction if you are a W-2 employee, even if you have side income from self-employment. If you have both W-2 income and self-employment income, you can only deduct the self-employment tax portion related to your self-employment earnings.

Certain religious groups and some government employees are exempt from self-employment tax entirely and therefore cannot claim this deduction. If you fall into one of these categories, you would have filed Form 4029 or another exemption form with the IRS.

Where the deduction appears on your tax return

The deduction shows up on line 20 of Form 1040 (or the equivalent line on your state return). It reduces your adjusted gross income (AGI), which in turn can lower your taxable income and potentially reduce your overall tax bill.

Because the deduction lowers your AGI, it can also affect other parts of your return. A lower AGI may change whether you may have access to for certain tax credits, how much you owe in net investment income tax, or whether you are subject to the additional Medicare tax (which applies to high earners). These effects are usually small but worth noting if you are close to an income threshold for any credit or tax.

The difference between the deduction and what you actually owe

It is important to understand that the self-employed tax deduction does not reduce the amount of self-employment tax you owe. You still owe the full 15.3 percent on your net self-employment income. The deduction only reduces your taxable income for federal income tax purposes.

For example, if you owe $7,000 in self-employment tax, you pay all $7,000 to the IRS. But you also get to deduct $3,500 from your income when calculating how much federal income tax you owe. The deduction saves you money on income tax, not on self-employment tax.

This is why self-employed workers often owe both self-employment tax and income tax. You cannot avoid self-employment tax by taking the deduction; you can only reduce the income tax on top of it.

Quarterly estimated tax payments and the deduction

Self-employed workers usually pay self-employment tax in quarterly installments using Form 1040-ES (Estimated Tax). These payments are due on April 15, June 15, September 15, and January 15 of the following year. You make these payments based on your expected income for the year.

The self-employed tax deduction does not change when you make these quarterly payments. You pay the full amount of self-employment tax in quarterly installments throughout the year. When you file your tax return the following year, you then claim the deduction, which reduces your income tax liability. If you overpaid, you receive a refund; if you underpaid, you owe the difference.

State and local tax treatment

Most states that have an income tax allow the same deduction on state returns. However, some states do not recognize the federal deduction or treat it differently. A few states do not tax self-employment income at all, so the deduction is irrelevant there.

Check your state's tax instructions or contact your state revenue department to confirm whether you can claim the deduction on your state return. If your state allows it, you typically claim it on the same line or schedule as your federal return.

Frequently Asked Questions

Can I deduct self-employment tax if I have a loss in my business?

No. You can only claim the deduction if you have net self-employment income of $400 or more. If your business expenses exceed your revenue, you have a loss and do not owe self-employment tax. You cannot claim a deduction for a tax you do not owe.

Does the deduction reduce my Social Security benefits later?

No. The deduction is only for income tax purposes. Your Social Security benefits are based on the full amount of self-employment tax you paid, not on the deduction. The IRS reports your full earnings to Social Security regardless of the deduction.

What if I am an LLC member or partner — do I still get the deduction?

Yes, if your LLC or partnership is taxed as a sole proprietorship or partnership. You report your share of net income on Schedule SE and claim the deduction on Form 1040. If your LLC is taxed as a corporation, you are an employee and do not claim this deduction.

Do I need to file Schedule SE if my self-employment income is under $400?

No. If your net self-employment income is under $400, you do not file Schedule SE and do not owe self-employment tax. You also cannot claim the deduction. However, you may still need to file a tax return if your total income exceeds the filing threshold for your age and filing status.

Can I claim this deduction if I am retired but still have self-employment income?

Yes. Age does not affect your right to the deduction. If you have net self-employment income of $400 or more, you report it on Schedule SE and claim the deduction on Form 1040, regardless of your age or retirement status.