Updated July 2026 · 9 min read
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Once your income crosses the Roth limit, the front door closes but the back door stays open. Here is exactly how it works and the one rule that trips most nurses up.
A direct Roth IRA contribution is blocked once your modified adjusted gross income (MAGI) exceeds $161,000 single or $240,000 married filing jointly in 2026. Staff RNs rarely hit that ceiling, but three groups routinely do: high-volume travel nurses stacking stipends and overtime, dual-income nursing households, and CRNAs earning $200,000–$260,000. For these earners the backdoor Roth is the only way to keep funding a Roth each year.
Step 1 — Contribute to a Traditional IRA. Open a Traditional IRA (Fidelity, Schwab, and Vanguard all handle this) and contribute up to $7,000 for 2026 ($8,000 if you are 50+). Because your income is too high to deduct it and you are likely already covered by a 403(b) at work, this is a non-deductible contribution. Leave it in cash; do not invest it yet.
Step 2 — Convert to Roth. A few days later, convert the entire Traditional IRA balance to your Roth IRA. Most brokerages have a one-click "convert to Roth" button. Because the contribution was after-tax money and you convert before it earns anything, there is little or no tax on the conversion. Then invest the money inside the Roth.
Example: you roll a $60,000 old 403(b) into a Traditional IRA, then add $7,000 non-deductible and convert that $7,000. The IRS sees $67,000 total, of which only ~10% is after-tax, so ~90% of your $7,000 conversion is taxable. That is a surprise tax bill.
The fix: before doing a backdoor Roth, move any pre-tax IRA money into your current employer 403(b) (a "reverse rollover"). Most hospital 403(b) plans accept incoming rollovers. Once your Traditional IRA balance is $0 on December 31, the pro-rata rule no longer bites and your conversion is clean.
| Item | Detail |
|---|---|
| Contribution deadline | Tax day of the following year (April 2027 for tax year 2026) |
| Conversion timing | Any time; converting soon after contributing minimizes taxable earnings |
| Form to file | IRS Form 8606 — reports the non-deductible basis. File it every year you do this. |
| Pro-rata snapshot date | December 31 balance of all Traditional/SEP/SIMPLE IRAs |
Form 8606 is the single most-forgotten piece. Without it, the IRS has no record that your contribution was after-tax and may tax you again at withdrawal. If you use a CPA, tell them explicitly you did a backdoor Roth so they file it.
Yes, if you are over the income limit. $7,000/year growing tax-free for 25 years at 7% becomes roughly $443,000 — and every dollar of that comes out tax-free in retirement. For a CRNA who will retire in a high bracket, the tax savings alone justify the 20 minutes of clicking each January.
If your income is still under the limit, skip the backdoor entirely and just contribute directly — it is simpler and identical in outcome. See our companion guide on Roth IRA vs 403(b) funding order and the broader nurse investing starter guide.
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