For 2026, single and head-of-household filers lose direct Roth IRA access at $168,000 MAGI, while joint filers lose it at $252,000 MAGI. A backdoor Roth is a workaround for those high earners: you make a nondeductible Traditional IRA contribution, then convert that money to Roth. Below those ceilings you can still contribute directly. Full contributions stay open below $153,000 single and $242,000 joint, with smaller partial amounts allowed inside the phase-out bands.
Table of Contents
- Which 2026 income levels block direct Roth contributions?
- How does the two-step workaround work?
- What paperwork prevents double tax?
- When does the backdoor cost extra tax?
Which 2026 income levels block direct Roth contributions?
The IRS news release on 2026 IRA limits IRS news release on 2026 IRA limits sets the single line at $153,000 to $168,000 MAGI. MAGI means modified adjusted gross income. Below $153,000 you can make a full direct contribution, inside the band a reduced amount, and at $168,000 or more none.
IRS Publication 590-A on joint Roth limits IRS Publication 590-A on joint Roth limits sets the joint line at $242,000 to $252,000 MAGI. Below $242,000 joint filers get full access, inside the band reduced access, and at $252,000 or more none. Fidelity notes that married filing separately and living with a spouse faces a $0 to $10,000 phase-out, so direct eligibility ends above $10,000.
How does the two-step workaround work?
The workaround uses after-tax money in a Traditional IRA, then moves it to Roth. It takes two moves: The IRS page on IRA contribution limits IRS page on IRA contribution limits caps combined Traditional plus Roth contributions at $7,500. At age 50 or older the cap is $8,600, including a $1,100 catch-up.
The IRS Topic No. 309 on Roth conversions IRS Topic No. 309 on Roth conversions states conversion has no income cap tied to adjusted gross income.
- Make a nondeductible Traditional IRA contribution within the yearly cap.
- Convert that balance to a Roth IRA.
What paperwork prevents double tax?
Wolters Kluwer expert guidance on Form 8606 says earners above $168,000 single or $252,000 joint must use the nondeductible-plus-conversion path. You report after-tax basis in Part I and the conversion in Part II. That paper trail separates already-taxed dollars from pre-tax dollars and avoids double tax.
For example, a single filer at $180,000 MAGI puts after-tax money into a Traditional IRA, converts it, and files Form 8606 showing basis and conversion. Keep the contribution within the $7,500 or $8,600 cap. Keep a copy with your tax file.
When does the backdoor cost extra tax?
IRS Publication 590-A treats all Traditional, SEP and SIMPLE IRAs as one pool. If that pool holds pre-tax dollars, the conversion is taxed proportionally under the pro-rata rule.
A clean conversion needs little or no pre-tax balance in those accounts. Check every Traditional, SEP and SIMPLE balance before you contribute. Pre-tax balances carried into the year raise the taxable share of the conversion.
