Roth vs Traditional IRA Calculator

Compare the after-tax value of a Roth IRA vs a Traditional IRA.

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IRA Comparison

Enter your contribution amount, tax rates, and investment return.

After-tax values at retirement
Roth wins by $0
Roth: $0 · Traditional: $0
Roth IRA after-tax
$0
Traditional IRA after-tax
$0
Difference
$0
Roth pre-tax cost
$0
Trad pre-tax cost
$0
Tax savings (trad)
$0

Worked example

With the default inputs shown below, this calculator returns the following results:

InputValue
Annual contribution ($)$7,000
Current tax rate (%)24%
Retirement tax rate (%)22%
Annual return (%)7%
Time period (years)20
ResultValue
After-tax values at retirementRoth wins by $5,959
Roth IRA after-tax$27,088
Traditional IRA after-tax$21,128
Difference+$5,959
Roth pre-tax cost$7,000
Trad pre-tax cost$7,000

Values shown are produced by this page in your browser; change any input to update them.

How to use the IRA Comparison

  1. Annual contribution ($) — default $7,000
  2. Current tax rate (%) — default 24%
  3. Retirement tax rate (%) — default 22%
  4. Annual return (%) — default 7%
  5. Time period (years) — default 20
  6. Press Calculate to update the results instantly.

Frequently asked questions

It depends on tax rates. If your rate is higher now than in retirement, Traditional wins; if lower, Roth wins because you paid tax at the lower rate.
Yes, one shared limit across both account types. You can split it however you like between Roth and Traditional.
Yes, as long as the combined amount stays under the annual limit. They are not exclusive — only the total is capped.

Sources & references