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How Self-Employment Tax Works: A Refresher Guide

Self-employment can be incredibly rewarding, offering flexibility, independence, and the opportunity to build something of your own. However, it also comes with unique responsibilities, including managing your taxes. One of the most critical taxes to understand as a self-employed individual is self-employment tax.


Now, what is self-employment tax, how does it work, and how might it affect entrepreneurs and business owners?


What is Self-Employment Tax?

Self-employment tax is the tax self-employed individuals pay to fund Social Security and Medicare programs. For traditional employees, these taxes are automatically deducted from their paychecks, with employers covering half of the cost. However, if you're self-employed, you're responsible for the entire amount.


The maximum self-employment tax rate is 15.3% (for income of $168,600 and below), which is divided into:

  • 12.4% for Social Security

  • 2.9% for Medicare


This tax applies to your net earnings from self-employment. While employees and employers split this cost, self-employed individuals must pay both portions themselves.


Reviewing paperwork

How to Calculate Self-Employment Tax?

Calculating self-employment tax involves a few key steps:

 

1. Determine Net Earnings 

Net earnings = Total Business Income - Any Allowable Business Expenses

 

For example, if you earned $60,000 from freelancing but had $10,000 in business expenses, your net earnings would be $50,000.

 

2. Adjust for Taxable Income

Only 92.35% of your net earnings are subject to self-employment tax. This adjustment accounts for the fact that employees only pay Social Security and Medicare taxes on their wages after certain deductions.

 

3. Apply the Tax Rate

Multiply your adjusted earnings by the 15.3% self-employment tax rate. For example:

  • Net earnings: $50,000

  • Adjusted earnings: $50,000 × 92.35% = $46,175

  • Self-employment tax: $46,175 × 15.3% = $7,060.78

 

4. Account for Social Security Limits

The Social Security portion of the tax (12.4%) only applies to the first $168,600 of your net earnings (for your 2024 tax bill). However, the Medicare portion (2.9%) applies to all earnings, with an additional 0.9% Medicare surtax for income over $200,000 (single filers) or $250,000 (married filing jointly).

 

When is Self-Employment Tax Due?

Self-employed individuals pay taxes differently from employees. Instead of withholding taxes from each paycheck, you must estimate and pay your taxes quarterly throughout the year. Quarterly payments are typically due on:

  • April 15 (for Q1)

  • June 15 (for Q2)

  • September 15 (for Q3)

  • January 15 (for Q4 of the previous year)


To calculate and pay your quarterly taxes, you can use IRS Form 1040-ES or contact your VAAS Pro Tax Consultant.


When you file your annual tax return, you'll report your self-employment income on Schedule C (Profit or Loss from Business) and calculate self-employment tax on Schedule SE.


Will Self-Employment Tax Increase in the Future?

Unfortunately, yes. The latest Social Security Administration (SSA) projections (from May 2024) for the Social Security tax ceilings for 2026–2033 are:

  • 2026 - $181,800

  • 2027 - $188,100

  • 2028 - $195,900

  • 2029 - $204,000

  • 2030 - $213,600

  • 2031 - $222,900

  • 2032 - $232,500

  • 2033 - $242,700


Could these estimated ceilings get worse? Absolutely, because the SSA projections sometimes undershoot the actual final numbers. For instance, the 2025 ceiling was projected to be $174,900 just last May, but the final number turned out to be $176,100. But let’s say the projected numbers play out. If so, the 2033 SE tax hit on $242,700 of net SE income will be a whopping $37,133 (15.3% × $242,700).


Can I Reduce My Self-Employment Tax?

Short answer, not exactly. However, you CAN reduce your taxable income which will resulting lower the amount owed for self-employment tax. Here are a few strategies:

 

1. Deduct Business Expenses

Legitimate business expenses, such as office supplies, travel costs, and marketing expenses, reduce your net earnings and, consequently, your self-employment tax.


2. Claim the Employer Portion Deduction

Although you pay the full 15.3% tax, the IRS allows you to deduct half of your self-employment tax (the "employer portion") as an adjustment to income on your Form 1040. This lowers your taxable income and reduces your overall tax liability.


3. Contribute to a Retirement Plan

Contributions to retirement plans like a SEP IRA or Individual 401(k) are tax-deductible and can reduce your taxable income.


4. Consider S-Corporation Status

If your business qualifies, you may elect S-corporation status to split your income between salary and distributions. This can lower your self-employment tax liability but involves additional administrative work and costs.


 

Understanding self-employment tax is essential for effectively managing your finances as a freelancer, contractor, or small business owner. Missing self-employment tax payments can lead to penalties and interest, making it important to stay proactive. To avoid unexpected costs, track your income and expenses consistently throughout the year and allocate funds for quarterly payments. By understanding how self-employment tax works, staying organized, and leveraging available deductions, you can fulfill your tax responsibilities while maximizing your income. For more complex situations or personalized advice, consulting with your VAAS Pro Tax Professional is always a good idea.

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