How to Use Retirement Accounts to Reduce Your Taxable Income

How to Use Retirement Accounts to Reduce Your Taxable Income

Below, we break down exactly how 401(k)s, IRAs, and SEP IRAs work in 2025—and how to use each one strategically to minimize your tax bill. Lets get into.

If you’re looking for one of the most effective (and IRS-approved) ways to lower your taxable income, retirement accounts should be at the top of your strategy list. Whether you’re a W-2 employee, a freelancer, or a business owner, contributing to tax-advantaged retirement plans can significantly reduce the amount of income the IRS taxes—while building long-term wealth for your future.

Below, we break down exactly how 401(k)s, IRAs, and SEP IRAs work in 2025—and how to use each one strategically to minimize your tax bill.

1. Maximize Your 401(k) Contributions

For employees and self-employed individuals with a Solo 401(k), retirement contributions offer some of the biggest tax savings.

- Traditional 401(k) (Employee Plan)

When you contribute to a traditional 401(k), your contributions are made before taxes. That means:

  • You lower your W-2 taxable income
  • You reduce your current-year tax bill
  • Your investments grow tax-deferred

- 2025 401(k) Contribution Limits

  • Employee contribution limit: $23,500
  • Catch-up for age 50+: + $7,500
  • Total possible as an employee age 50+: $31,000

Even bumping your contribution by a few percent before December can deliver immediate tax savings.

- Solo 401(k) (Self-Employed)

If you’re a freelancer or business owner with no employees, you can contribute as both:

  • The employee (up to $23,500), and
  • The employer (up to 25% of net self-employment income)

- 2025 combined maximum: $70,000With catch-up (50+): $77,500

For high-earning freelancers or small business owners, this is one of the most powerful tax-reduction tools available.

2. Reduce Taxable Income With IRA Contributions

Individual Retirement Accounts (IRAs) are an easy, flexible way to reduce taxable income—especially if you don’t have access to a workplace 401(k) or want to supplement your savings.

- Traditional IRA

Contributions may be tax-deductible depending on your income and whether you're covered by another retirement plan.

2025 IRA Contribution Limits

  • $7,000 per year
  • $8,000 per year if you’re 50+

Even if you're covered by a 401(k), you may still qualify for a partial or full deduction, depending on your modified adjusted gross income (MAGI).

- Roth IRA (Not deductible, but still tax-advantaged)

Roth contributions don’t reduce taxable income now—but they grow tax-free and withdrawals in retirement are tax-free as well.

3. Use a SEP IRA If You’re Self-Employed or Own a Small Business

A SEP IRA (Simplified Employee Pension) is perfect for freelancers, contractors, and small business owners who want to maximize deductions without the paperwork of a 401(k).

Why a SEP IRA Reduces Taxes

Contributions are made by the business, and every dollar you contribute is a tax-deductible business expense.

2025 SEP IRA Contribution Limits

  • Up to 25% of net self-employment earnings
  • Maximum contribution: $70,000

It’s simple to set up, requires almost no maintenance, and can dramatically reduce taxable income for profitable solo businesses.

4. Combine Multiple Accounts for Even Bigger Tax Savings

Depending on your situation, you may be able to:

  • Contribute to both a Solo 401(k) and a Traditional/Roth IRA
  • Use a backdoor Roth if your income exceeds Roth limits
  • Make employer contributions as a business owner
  • Use catch-up contributions if you're 50 or older

Many self-employed earners contribute to both a Solo 401(k) and an IRA to maximize deductions and long-term saving.

5. Plan Contributions Strategically Before December 31st

Some accounts—like 401(k)s and SEP IRAs—are tied to the calendar year. Increasing contributions before December 31st can:

  • Reduce your taxable income in the current tax year
  • Lower your estimated taxes
  • Keep you from climbing into a higher tax bracket
  • Boost retirement savings with compounding growth

IRAs, however, give you more time—you can contribute up to the tax filing deadline (typically mid-April), but the earlier you fund them, the greater your investment growth potential.

Final Thoughts

Using retirement accounts strategically is one of the smartest ways to reduce your taxable income while building long-term financial security. Whether you're contributing to a 401(k), maximizing an IRA, or leveraging the high limits of a SEP IRA, these accounts allow you to lower taxes today while preparing for a more comfortable future.

If you want help choosing the right retirement and tax strategy for your situation—or want personalized guidance before the year ends—reach out! I can help you map out the best approach to keep more money in your pocket while strengthening your financial future.

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