Self-Employment Tax in Louisiana (2026)
If you are self-employed in Louisiana, you pay federal self-employment (SE) tax of 15.3% on your net earnings - 12.4% for Social Security up to the annual wage base plus 2.9% for Medicare - reported on Schedule SE. It is separate from and in addition to income tax. Louisiana has no separate SE tax, but your profit is still subject to Louisiana income tax.
Quick Answer
- SE tax rate
- 15.3% (12.4% Social Security + 2.9% Medicare)
- Applies to
- Net earnings from self-employment
- Base adjustment
- Net earnings x 92.35% before the tax
- Form
- Schedule SE (Form 1040)
- Additional Medicare
- 0.9% over $200k / $250k thresholds
- Louisiana tax
- Louisiana income tax on the same profit
What Self-Employment Tax Is
Self-employment tax funds Social Security and Medicare for people who work for themselves. When you are an employee, you and your employer each pay half of these payroll taxes; when you are self-employed, you pay both halves yourself. That is why the combined SE tax rate is 15.3% - 12.4% for Social Security and 2.9% for Medicare - as set by 26 U.S.C. § 1401.
SE tax applies to sole proprietors, partners in a partnership, and members of a multi-member LLC taxed as a partnership - anyone with net earnings from a trade or business in Louisiana. It is calculated separately from income tax on Schedule SE and added to your Form 1040. Importantly, it is not a Louisiana tax; it is federal, and every self-employed person owes it regardless of the state they live in. See the national self-employment tax guide for the full picture.
How the 15.3% Is Calculated
SE tax is not charged on your full profit. First, you multiply net earnings by 92.35% - this removes the employer-equivalent share from the base. The 15.3% rate then applies to that adjusted amount. The Social Security portion (12.4%) applies only up to the annual Social Security wage base, which the SSA adjusts each year; earnings above the base are not subject to the 12.4% but remain subject to the 2.9% Medicare portion, which has no cap.
High earners owe an extra 0.9% Additional Medicare Tax on wages and self-employment income above $200,000 (single) or $250,000 (married filing jointly). If you also have a W-2 job, wages there count first against the Social Security wage base, which can reduce the Social Security portion of your SE tax. Use the self-employment tax calculator to estimate your own number.
Reporting on Schedule SE
You compute and report SE tax on Schedule SE, filed with your Form 1040. Your net earnings usually come from Schedule C for a sole proprietor or single-member LLC, or from Schedule K-1 for a partnership or multi-member LLC. The Schedule SE result is added to your income tax to produce your total federal liability.
You must file Schedule SE if your net earnings from self-employment are $400 or more for the year. One partial offset helps: you deduct half of your SE tax as an adjustment to income on Form 1040, which lowers your income tax (though not the SE tax itself). This deduction reflects the employer-share half that a business would normally deduct.
Keep in mind that paying SE tax is not purely a cost - it credits your Social Security earnings record, which affects future retirement and disability benefits. Reporting too little self-employment income to save tax today can lower those benefits later. This is one reason the IRS scrutinizes underreported sole proprietor income and unreasonably low S-corp salaries.
Paying Estimated Taxes Quarterly
No employer withholds tax from a self-employed person's income, so you generally pay as you go through quarterly estimated taxes using Form 1040-ES. These payments cover both income tax and SE tax. The IRS deadlines fall in April, June, September, and January, and underpaying can trigger a penalty even if you pay in full at filing.
Louisiana similarly expects estimated payments toward your state income tax if you will owe above a threshold. Setting aside a percentage of each payment you receive - many self-employed people reserve 25-35% for combined federal income tax, SE tax, and state tax - keeps you from a large bill at year-end. See IRS estimated taxes for the rules.
Deductions That Reduce What You Owe
Several deductions ease the burden. The deduction for one-half of SE tax reduces your income tax. The self-employed health insurance deduction can let you deduct premiums for yourself and family. Contributions to a self-employed retirement plan (such as a SEP-IRA or solo 401(k)) are deductible and lower taxable income. And ordinary, necessary business expenses on Schedule C reduce net earnings before SE tax is calculated - so tracking legitimate expenses directly lowers the 15.3% base.
Because SE tax is calculated on net profit, anything that legitimately reduces profit reduces SE tax. That is different from most income-tax deductions, which only reduce income tax. Good bookkeeping therefore has a double benefit for the self-employed. For an overview of what is deductible, see business tax basics.
Louisiana Income Tax on Self-Employment Income
Louisiana imposes a state individual income tax, and your self-employment profit flows into it. There is no separate Louisiana self-employment tax; instead, the net earnings you report federally are included in your Louisiana taxable income and taxed at the state's individual rates. You file a Louisiana resident income tax return reporting that income.
If you expect to owe Louisiana income tax beyond withholding, the Louisiana Department of Revenue expects quarterly declaration of estimated tax payments, mirroring the federal estimated-tax system. Register and file through the department's online services. Combine your federal SE tax, federal income tax, and Louisiana income tax when you set aside money each quarter. See Louisiana LLC tax filing for how business income is reported at the state level.
S-Corp Election and Other Ways to Manage SE Tax
A common strategy for higher-earning self-employed people is electing S-corporation tax status for an LLC. In an S corp, the owner-employee pays payroll taxes only on a reasonable salary, while remaining profit distributed to the owner is not subject to SE tax. This can reduce total Social Security and Medicare tax, but it adds payroll filings, a separate return, and IRS scrutiny of whether the salary is truly reasonable. See S-corp election in Louisiana and S-corp vs LLC.
The S-corp route only makes sense above a certain profit level, because the payroll and compliance costs offset the savings for smaller businesses. Other approaches - maximizing deductible retirement contributions and tracking every legitimate business expense - reduce the net earnings base directly. Whatever the approach, SE tax itself does not disappear for a sole proprietor or ordinary LLC member; it is a core cost of self-employment that planning can manage but not eliminate.
Frequently Asked Questions
What is the self-employment tax rate in Louisiana?
The federal SE tax rate is 15.3% - 12.4% for Social Security up to the annual wage base plus 2.9% for Medicare. Louisiana does not add a separate SE tax, but it taxes the same profit through state income tax.
How is self-employment tax calculated?
Multiply net earnings by 92.35%, then apply 15.3%. The 12.4% Social Security portion stops at the annual wage base; the 2.9% Medicare portion has no cap, and a 0.9% surtax applies over $200k/$250k.
Do I pay Louisiana tax in addition to self-employment tax?
Yes. SE tax is federal. Your self-employment profit is also subject to Louisiana income tax, filed on your state return, so you plan for both.
When do I pay self-employment tax?
Usually through quarterly estimated payments on Form 1040-ES, then reconciled on your annual Form 1040 with Schedule SE. You must file Schedule SE if net earnings are $400 or more.
How can I reduce self-employment tax?
Deduct all legitimate business expenses to lower net earnings, contribute to a self-employed retirement plan, and - above a certain profit level - consider an S-corp election so only a reasonable salary is subject to payroll tax.
Related
- Self-employment tax (cluster hub)
- Self-employment tax calculator
- S-corp election in Louisiana
- Sole proprietorship in Louisiana
- Business tax basics
- How to get an EIN in Louisiana
- S-corp vs LLC
More Louisiana business guides
Form An Llc In Business License In Dissolve An Llc In Annual Report Articles Of Organization Dba Filing Llc Tax Filing Operating Agreement Registered Agent Business Entity Search
Sources
- IRS - Self-Employment Tax (Social Security and Medicare Taxes) (15.3% rate).
- IRS - About Schedule SE (Form 1040).
- IRS - Additional Medicare Tax (0.9%).
- IRS - Estimated Taxes (quarterly payments).
- IRS - About Form 1040-ES.
- IRS - About Schedule C (Form 1040) (sole proprietor profit or loss).
- Legal Information Institute - 26 U.S.C. § 1401 (self-employment tax rate).
- Legal Information Institute - 26 U.S.C. § 1402 (net earnings from self-employment).
- Social Security Administration - Contribution and Benefit Base (Social Security wage base, adjusted annually).
- Louisiana Department of Revenue - individual income tax (self-employment profit taxed at state level).
- Louisiana Department of Revenue - declaration of estimated tax.
- IRS - Sole Proprietorships.
- IRS - State Government Websites (state tax and business links).
LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the IRS and Louisiana Department of Revenue before acting.