The Roth IRA is arguably the most powerful retirement account the IRS has ever created. Money goes in after tax, grows completely tax-free, and comes out tax-free in retirement — with no Required Minimum Distributions ever. You can hold it until you die and pass it to your children, who inherit a decade of tax-free dividend income.
There is one catch: if your income is above a certain threshold, the IRS says you cannot contribute directly. For 2026 that threshold is $236,000 modified adjusted gross income for married couples filing jointly. A GS-14 household earning $200,000 combined is approaching or over that limit depending on deductions. A GS-13 earning $105,000 individually is over the single filer limit of $150,000.
What most people don't know is that the income limit only applies to direct contributions — not to conversions. The backdoor Roth is simply the legal, IRS-sanctioned workaround that has existed since 2010 and shows no sign of going away.
"The income limit blocks the front door. The backdoor has been unlocked since 2010 — and the IRS put it there on purpose."
Two steps, one form, one trap to avoid. Here is exactly how to execute a backdoor Roth contribution from start to finish — and how to make sure you never pay unnecessary taxes doing it.
The mechanics of a backdoor Roth are straightforward. You make a non-deductible contribution to a traditional IRA — the income limit that blocks Roth contributions does not apply to traditional IRA contributions — and then you convert that traditional IRA balance to a Roth IRA. Since you already paid tax on the money going in, the conversion is tax-free.
That's it. Two steps. The complexity people encounter almost always comes from one source: the pro-rata rule. We will cover that in detail. But first, the step-by-step.
Open a traditional IRA at your brokerage — E*Trade, Fidelity, Schwab, or Vanguard all work. This takes about 15 minutes online. You need one traditional IRA per person — the backdoor Roth is done individually, not jointly. A couple doing this will each have their own traditional IRA and their own Roth IRA.
Contribute $8,000 to the traditional IRA (the 2026 limit for age 50+; $7,000 if under 50). Do NOT deduct this contribution on your taxes — it is a non-deductible contribution. This is critical. You are contributing after-tax dollars intentionally, which is what makes the subsequent conversion tax-free.
This is the most important timing instruction: convert the traditional IRA to Roth as soon as the contribution clears — ideally within a day or two, before it earns any interest or growth. If the money sits and earns $12 in interest before you convert, that $12 becomes taxable at conversion. Keep it in cash and convert it fast.
Once the money lands in your Roth IRA, invest it immediately. For dividend-focused investors this is where SCHD, JEPI, JEPQ, VYM, and O belong. Every dollar of dividends these holdings generate inside the Roth is completely tax-free — forever. JEPI and JEPQ are especially valuable here because their ordinary income distributions, which are taxable in a brokerage account, are irrelevant inside a Roth.
Form 8606 is how you tell the IRS that your traditional IRA contribution was non-deductible (after-tax). Without this form, the IRS assumes all traditional IRA contributions were pre-tax — and will tax your conversion as ordinary income, costing you thousands. File Form 8606 every year you make a backdoor Roth contribution, even if you owe no additional tax. Keep copies permanently.
Here is where most people get burned. If you have any existing pre-tax money in a traditional IRA anywhere — including SEP IRAs and SIMPLE IRAs — the IRS applies what is called the pro-rata rule to your conversion. Instead of treating your $8,000 non-deductible contribution as a clean tax-free conversion, the IRS looks at ALL your traditional IRA money combined and taxes your conversion proportionally.
Suppose you have $50,000 in a rollover traditional IRA from an old job, plus you contribute $8,000 as a new non-deductible contribution. Total traditional IRA balance: $58,000. Your non-deductible (after-tax) portion is $8,000 ÷ $58,000 = 13.8%. When you convert $8,000 to Roth, only 13.8% — about $1,103 — is tax-free. The other $6,897 is taxable as ordinary income. At 24% that's a $1,655 unexpected tax bill. The backdoor Roth just became a partially taxable event.
The solution is straightforward but requires action before you start: roll any existing pre-tax traditional IRA balances into your TSP or 401k before executing the backdoor Roth. Most employer plans — including the TSP — accept incoming rollovers from traditional IRAs. Once the pre-tax IRA money is inside the TSP, it is no longer counted in the pro-rata calculation. Your traditional IRA balance is now zero, your $8,000 non-deductible contribution converts cleanly, and the entire amount is tax-free.
Most federal employees hold their pre-tax retirement money in the TSP — not in traditional IRAs. If neither spouse has any existing traditional IRA balance from old rollovers or prior contributions, the pro-rata rule is simply not an issue. The backdoor Roth executes cleanly from day one. This is one of several quiet advantages FERS employees have over private-sector workers trying to execute the same strategy.
The backdoor Roth feels like a small annual exercise — $16,000 per year for a couple. But compounded over 15 years inside a tax-free wrapper invested in dividend growth holdings, it becomes genuinely significant.
That $390,000 passed to children comes with a 10-year distribution window — meaning heirs can withdraw the full balance over 10 years with zero federal income tax. If the Roth holds SCHD, JEPI, and JEPQ during that decade, it continues generating dividend income throughout the distribution period. The engine keeps running even after it's been inherited.
Not every dollar belongs in a Roth. The backdoor Roth is powerful but it works best as part of a coordinated three-bucket strategy — each account type serving a specific role.
| Account | Tax Treatment | RMDs | Best Holdings | Priority |
|---|---|---|---|---|
| Roth IRA | Tax free in and out | None — ever | JEPI · JEPQ · O · SCHD · VYM | Highest ordinary income payers first |
| TSP (Traditional) | Pre-tax now · taxable later | Required at 73 | C Fund · S Fund · I Fund | Max for match · convert strategically |
| Brokerage | After-tax · dividends taxed annually | No RMDs | SCHD · VYM · T-Bills | Qualified dividend payers · T-Bill ladder |
The guiding principle: put the holdings that generate the most ordinary income — JEPI, JEPQ, O — inside the Roth where that income is tax-free. Put holdings that generate qualified dividends — SCHD, VYM — in the taxable brokerage where the lower qualified dividend rate applies. Let the TSP hold index funds that grow aggressively and get converted systematically between ages 67 and 73.
Annual backdoor Roth contributions build the engine during the accumulation phase. But the real power comes after retirement — the six-year window between ages 67 and 73 when a strategic TSP-to-Roth conversion can move hundreds of thousands of pre-tax dollars into the tax-free Roth, funded by the dividend income the Roth is already generating. The Roth pays its own conversion tax bill. Issue 005 covers this flywheel in full detail.
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