Part of the Retirement Planning guide.
A Roth IRA is one of the best retirement accounts available — contributions grow completely tax-free, and there’s no required withdrawal age forcing you to take money out. There’s one catch: once your income crosses a certain threshold, the IRS won’t let you contribute to one directly. For freelancers who’ve built a genuinely successful business, especially anyone who elected S-corp status and is running real numbers through the LLC vs. S-Corp guide, this limit is closer than it looks.
The Two-Step Workaround
The backdoor Roth isn’t a special account — it’s a legal sequence of two ordinary moves:
- Make a nondeductible contribution to a traditional IRA. Unlike Roth IRAs, traditional IRA contributions have no income limit — anyone with earned income can make one, though at high income it won’t be tax-deductible.
- Convert that traditional IRA to a Roth IRA. Roth conversions also have no income limit — that’s the entire mechanism. Since the contribution was already nondeductible (already taxed), converting it creates little or no additional tax.
This isn’t a gray-area loophole. Congress’s own conference committee report on the 2017 Tax Cuts and Jobs Act explicitly acknowledged the strategy, and the IRS has never disputed its legitimacy. The mechanics are legitimate; the part that trips people up is entirely procedural.
The Trap: The Pro-Rata Rule
If you have any other pre-tax money in a traditional IRA, SEP IRA, or SIMPLE IRA, the conversion doesn’t cleanly convert just your new nondeductible contribution — the IRS requires you to treat the conversion as a proportional mix of your pre-tax and after-tax IRA dollars, calculated across all your non-Roth IRA balances combined.
This matters directly for freelancers using a SEP IRA: if you’re funding a SEP IRA (which is a pre-tax vehicle) and also want to do a backdoor Roth, the SEP balance gets pulled into the pro-rata calculation and can make most of your “backdoor” conversion unexpectedly taxable. Before attempting this strategy, know your full pre-tax IRA balance across every account — not just the new one you’re opening for this purpose.
The pro-rata calculation uses your balance on December 31 of the conversion year, not the contribution year. If you’re carrying old pre-tax IRA money and want a clean backdoor conversion, that balance needs to be dealt with — commonly by rolling it into a Solo 401(k), which isn’t counted in the pro-rata calculation the way IRA balances are — before you convert.
The 2026 Numbers
The IRS officially adjusts retirement thresholds annually for inflation. The finalized parameters for the 2026 tax year:
- Standard IRA contribution limit: $7,500 (up from $7,000 in 2025)
- Age 50+ catch-up: an additional $1,100, bringing the total allowable contribution to $8,600
- Roth IRA direct-contribution phase-out, single filers: $153,000–$168,000 MAGI — direct contributions are fully blocked at $168,000 or above
- Roth IRA direct-contribution phase-out, married filing jointly: $242,000–$252,000 MAGI — fully blocked at $252,000 or above
This Fits a Bigger 2026 Pattern
The backdoor Roth isn’t the only place Roth treatment is becoming harder to avoid this year. Under SECURE 2.0, high earners making catch-up contributions to an employer plan — including a Solo 401(k) — are now required to make those catch-up contributions as after-tax Roth contributions once prior-year wages cross a set threshold, covered in full in the retirement guide’s section on the 2026 Roth catch-up requirement. Between that mandate and the backdoor Roth route covered here, Roth exposure is increasingly the default direction for high-earning freelancers in 2026, not an optional add-on — worth planning around deliberately rather than defaulting into piece by piece.
Don’t Skip Form 8606
Every backdoor Roth contribution requires filing Form 8606 to establish and track your after-tax basis. Skip it, and there’s a real risk of being taxed twice on the same money down the line, since the IRS has no record that the contribution was already nondeductible. This is the single most common paperwork mistake with this strategy, and it’s cheap insurance against a real future problem.
When It’s Not Worth Doing
- If you’ll likely need the money within five years. Each conversion starts its own five-year clock before converted principal can be withdrawn penalty-free if you’re under 59½.
- If you have a large pre-tax IRA balance you can’t or won’t move. The pro-rata rule can make the tax cost of converting outweigh the benefit until that balance is addressed.
- If it’s not solving a real problem. This strategy exists to get money into a Roth account despite an income limit — it’s not a general-purpose move for everyone with extra cash to invest.
Sources: IRC §408A (Roth IRA rules); IRC §408(d)(2) (pro-rata rule for IRA distributions/conversions); 2017 Tax Cuts and Jobs Act conference committee report (acknowledging the backdoor Roth strategy); IRS Form 8606 instructions.
This article is educational content, not individualized tax or legal advice. Consult a qualified professional about your specific situation.