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Investment & Retirement Taxes

Traditional vs. Roth IRA: Understanding the Tax Differences

Compare when you receive a tax benefit, whether you qualify to contribute, and how you expect to use the money in retirement.

Updated September 20, 2026

Compare the tax timing

A traditional IRA contribution may be deductible; eligibility for a deduction depends on income, filing status, and workplace retirement coverage. Roth IRA contributions are not deductible, but qualified withdrawals are tax-free.

Check eligibility first

Contribution limits change by year. Income can restrict direct Roth contributions and traditional IRA deductions. Making a nondeductible contribution is different from receiving a deduction; keep the required basis records.

Review conversions separately

Moving pretax IRA money to a Roth IRA can create taxable income in the conversion year. Existing after-tax basis and other IRA balances can affect that calculation. Evaluate the tax bill and how it will be paid before requesting a conversion.

A practical example

A saver expecting a low-income year may want to compare a partial Roth conversion with waiting. The decision should include other income and available cash, rather than converting the full account automatically.

What to gather
  • Current IRA balances and account types
  • Workplace retirement coverage and income estimate
  • Prior Forms 8606 for nondeductible contributions
  • Contribution and conversion confirmations
Official references

General educational information, not individualized tax, legal, or investment advice. Federal rules are summarized; state rules and your circumstances may differ. Check the rules for your tax year before acting.

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