1099 & Tax
Self-Employment Tax for Freelancers: Rates and How to Pay
Understand US self-employment tax on freelance income—Social Security and Medicare rates, Schedule SE, the deductible half, S-corp considerations, and quarterly payment tips.
Published May 31, 2026
What self-employment tax covers
SE tax funds Social Security and Medicare for self-employed workers—similar to FICA on W-2 wages. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Applies to net profit from Schedule C (and certain other self-employment income). US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
It is separate from federal income tax—you owe both on profitable freelance work. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
The 15.3% rate breakdown
12.4% Social Security on net earnings up to the annual wage base (adjusted yearly). US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
2.9% Medicare on all net earnings; additional 0.9% Medicare surtax may apply at higher income levels. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Only net profit after legitimate business expenses is subject to SE tax—not gross 1099 totals. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
Schedule SE on your Form 1040
Schedule SE calculates SE tax from Schedule C net profit (with adjustments for certain situations). US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Filed annually even when you paid quarterly estimates throughout the year. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Your tax software or CPA completes it—verify net profit matches your books. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
The deductible employer-equivalent portion
You deduct 50% of SE tax on Form 1040—not on Schedule C—lowering income tax, not SE tax itself. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
This mirrors the employer share W-2 workers never see on paychecks. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Budget for full SE tax in estimates; the deduction helps income tax slightly at filing. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
Social Security wage base limits
Earnings above the wage base in a year stop accruing 12.4% Social Security portion for that year. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Medicare continues without cap; high earners pay Additional Medicare Tax per Form 8959 rules. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Multiple income sources (W-2 plus freelance) aggregate toward the wage base—track combined. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
LLC and entity considerations
Default single-member LLC income flows to Schedule C and SE tax like a sole prop. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
S-corp election can split W-2 salary (FICA withheld) and distributions—requires reasonable salary and payroll compliance. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Do not choose S-corp only to avoid SE tax without CPA modeling—audit risk and payroll costs matter. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
Paying SE tax through estimated payments
Quarterly 1040-ES payments should include both income tax and SE tax projections. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Underpaying SE portion is a common penalty source for new freelancers. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Increase estimates after profitable quarters instead of waiting for April surprise. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
SE tax vs state taxes
State income tax applies separately—some states have additional self-employment or city taxes. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
SE tax is federal only; do not confuse with state disability or unemployment you may opt into voluntarily. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
International freelancers with US tax obligations still face SE rules on US-source self-employment income—ask a CPA. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
Planning and retirement offsets
SEP-IRA and solo 401(k) contributions reduce income tax but not SE tax base on Schedule C. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Health insurance deductions for self-employed affect income tax primarily—rules differ from SE tax calculation. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
When this topic comes up mid-project, point to the written agreement instead of renegotiating from memory. Clients respect freelancers who enforce scope calmly and consistently from the first invoice through the final delivery.
Accurate expense tracking lowers net profit, which lowers SE tax dollar-for-dollar. US freelancers who document this in proposals, contracts, and invoices reduce payment delays and tax-season surprises. Apply the same standard on every engagement so accounts payable and project sponsors know what to expect.
Important note
The information on this page is educational and may not reflect recent legal or tax changes.
State and federal rules vary; a qualified attorney or CPA can advise on your specific facts.
This guide is for general informational purposes only and is not legal, tax, or financial advice. Laws and IRS rules change; consult a qualified professional for advice about your specific situation.
Checklist
- Calculate tax on net Schedule C profit
- Include SE tax in quarterly estimates
- Track combined W-2 and freelance wage base
- Claim 50% SE tax deduction on 1040
- Model S-corp only with CPA guidance
- Separate SE tax from state obligations
- Reduce net profit with documented expenses
Frequently asked questions
- Do I pay SE tax if I lose money?
- No—SE tax applies to positive net self-employment income. Losses may offset other income per return rules.
- Is SE tax the same as income tax?
- No—they are separate calculations on your return. You often owe both when profitable.
- Can I deduct half of SE tax twice?
- The 50% deduction applies once on Form 1040. It does not reduce Schedule C expenses.
- Does an LLC automatically avoid SE tax?
- No—disregarded LLCs still pay SE tax unless valid S-corp election with W-2 wages is in place.
- What about church or rental income?
- Different rules apply to rental and certain passive income—typically not Schedule C SE tax. Services are.
- How does W-2 job affect SE tax?
- W-2 wages count toward Social Security wage base, reducing SE Social Security portion on freelance profit.
- Are SE taxes deductible on Schedule C?
- No—the 50% adjustment is above the line on Form 1040, not a business expense line.
- Do quarterly payments cover SE tax?
- They should if calculated correctly—many freelancers underfund by omitting SE portion from estimates.
- Can credits reduce SE tax?
- Some credits affect income tax; SE tax itself is rarely eliminated except through lower net profit or wage base limits.
Disclaimer
This page is for general informational purposes only and is not legal, tax, or financial advice. Laws change; consult a qualified professional for your situation.