Roth IRA Conversion Calculator

Evaluate whether converting your Traditional IRA to a Roth IRA makes financial sense based on your current situation and future tax expectations.

Current IRA Information

You can convert all or part of your Traditional IRA
Historical average stock market return is about 7-10% before inflation

Tax Information

Tax rate that will apply to your conversion
Tax rate you expect to pay during retirement
Using outside funds to pay taxes maximizes conversion benefits

Understanding Roth IRA Conversions

Converting a Traditional IRA to a Roth IRA can be a powerful retirement planning strategy, but it's important to understand the implications before making this significant financial decision.

Traditional vs. Roth: The Key Differences

Tax Treatment

Traditional IRA: Contributions may be tax-deductible, and earnings grow tax-deferred. Withdrawals in retirement are taxed as ordinary income.

Roth IRA: Contributions are made with after-tax dollars. Earnings grow tax-free, and qualified withdrawals in retirement are completely tax-free.

How a Roth Conversion Works

A Roth conversion involves transferring money from a Traditional IRA to a Roth IRA. The amount you convert is added to your taxable income for the year of conversion. After the conversion, the money grows tax-free in the Roth IRA, and qualified withdrawals will be tax-free.

Comparing the Long-Term Impact

Feature Traditional IRA Roth IRA
Tax on Contributions Tax-deductible (in most cases) After-tax
Tax on Growth Tax-deferred Tax-free
Tax on Withdrawals Ordinary income tax rates Tax-free (for qualified withdrawals)
Required Minimum Distributions Required at age 73 (as of 2023) No RMDs during the owner's lifetime
Best If... You expect lower tax rates in retirement You expect higher tax rates in retirement

When a Roth Conversion Makes Sense

Favorable Scenarios for Conversion

  • You expect higher tax rates in retirement: If you believe your tax bracket will be higher when you retire, converting now at a lower rate can save money.
  • You have a long time horizon: The longer your money has to grow tax-free, the more beneficial a Roth conversion typically becomes.
  • You want to avoid RMDs: Unlike Traditional IRAs, Roth IRAs don't require minimum distributions during your lifetime.
  • You have tax-advantaged funds to pay the conversion tax: Using non-retirement funds to pay the tax bill maximizes the amount converted.
  • You're in a temporarily lower tax bracket: A year with lower income or higher deductions might be ideal for a conversion.
  • Estate planning benefits: Roth IRAs can be more efficient for leaving tax-free money to heirs.

When to Reconsider a Conversion

  • You'll need the money within 5 years: Roth conversions have a 5-year waiting period for tax-free earnings withdrawal.
  • The conversion pushes you into a much higher tax bracket: A large conversion could trigger unexpectedly high taxes.
  • You expect significantly lower tax rates in retirement: If your retirement tax rate will be much lower, keeping funds in a Traditional IRA may be more tax-efficient.
  • You don't have non-retirement funds to pay the tax: Using IRA funds to pay the conversion tax reduces the benefit.

Conversion Strategies

1. Lump Sum Conversion

Converting your entire Traditional IRA balance at once is simplest but can result in a large tax bill and potentially push you into a higher tax bracket.

2. Partial or "Roth Ladder" Conversion

Converting portions of your Traditional IRA over several years can help manage your tax liability and potentially keep you in a lower tax bracket each year.

3. Opportunistic Conversion

Timing conversions during market downturns or years with lower income can enhance the long-term benefit by converting a larger number of shares at lower valuations and potentially lower tax rates.

Tax Considerations

Immediate Tax Impact

The converted amount is added to your taxable income for the year. This could potentially push you into a higher tax bracket, affect certain tax credits and deductions, or impact Medicare premiums (for those 63 and older).

State Tax Considerations

Remember that most states that have income tax will also tax your conversion. Some states have more favorable treatment of retirement income, which could affect the conversion calculation.

Tax Payment Strategy

It's generally most beneficial to pay the taxes due on a conversion from non-retirement funds. If you use IRA funds to pay the taxes, you'll have less money growing tax-free in the Roth IRA, and if you're under 59½, you might also face an early withdrawal penalty on the amount used for taxes.

Getting the Timing Right

Market Considerations

Converting during a market downturn can be advantageous because you're converting assets at lower valuations. When the market recovers, the growth happens in the tax-free Roth environment.

Age and Timeline Considerations

The younger you are when converting, the more time your Roth IRA has to grow tax-free, potentially increasing the benefit. However, conversions can make sense at any age depending on your specific circumstances.

Income Planning

Planning conversions during years with lower income or higher deductions can help minimize the tax impact. For example, early retirement years before Social Security or RMDs begin might be ideal for conversions.

Conversion Deadlines

Roth conversions must be completed by December 31st to count for that tax year. Unlike Roth contributions, conversions cannot be recharacterized (undone) after they are processed.