Backdoor Roth IRA: What it is, how it works & why it matters

If you’re a high-income earner, you may have heard that you “make too much” to contribute to a Roth IRA. But if you're someone who likes the idea of having some retirement money that can eventually come out tax-free, you have options.

Enter the backdoor Roth.

Despite the name, there’s nothing secret or shady about it. It’s simply a strategy that uses the IRS rules for making a nondeductible traditional IRA contribution and then converting that money to a Roth IRA.

Why would you want Roth money in the first place?
A lot of retirement savings is probably going into accounts like a traditional 401(k), where you get a tax benefit today but generally pay income tax when you take the money out later. Roth money works differently.

You pay the taxes upfront, and qualified Roth withdrawals can come out tax-free.

That can give you something really valuable in retirement: tax flexibility.

For example, imagine you retire before age 59½ and need $50,000 to cover your living expenses. If all of your retirement savings are in traditional accounts, accessing that money before 59½ can create income taxes and potentially a 10% additional tax unless an exception applies.

Having Roth money in the mix can give you another source of funds. Roth IRA contributions can generally be withdrawn tax- and penalty-free, and Roth IRA withdrawals follow specific ordering rules that generally treat regular contributions as coming out first.

That doesn't mean a Roth IRA is a free-for-all before 59½. Earnings and certain converted amounts have additional rules, including separate five-year rules for conversions. But having Roth assets can create options that you wouldn't have if every dollar were sitting in pre-tax accounts.

So, what exactly is a backdoor Roth?
Here's the basic idea:

1. You contribute to a traditional IRA.
For 2026, you can contribute up to $7,500 to your traditional and Roth IRAs combined, or $8,600 if you're age 50 or older, assuming you have enough taxable compensation.

If your income is too high for a direct Roth IRA contribution, you can instead make a nondeductible contribution to a traditional IRA.

That means you don't take a tax deduction for the contribution.

2. You convert the traditional IRA to a Roth IRA.
You then convert the money from the traditional IRA to a Roth IRA. There is no income limit for doing a Roth conversion.

If you contributed after-tax money and then convert it, that contribution generally isn't taxed again. However, any untaxed money or investment growth included in the conversion can create taxable income.

Here's the part people often miss.

The backdoor Roth isn't necessarily as simple as:
Put $7,500 into an IRA → convert $7,500 → done.

The IRS looks at your traditional, SEP and SIMPLE IRAs when determining the taxable portion of a conversion.

So if you already have significant pre-tax money in those accounts, part of your conversion may be taxable. This is commonly called the pro-rata rule.

That's why someone with existing IRA balances may have a very different tax outcome from someone who doesn't.

And there's paperwork involved, too. Nondeductible IRA contributions and Roth conversions are generally reported on Form 8606, which is also how you keep track of your after-tax IRA basis.

Is a backdoor Roth right for you?
Maybe. For a high-income household, building Roth money can be valuable because it adds tax diversification and flexibility to your overall retirement strategy.

But the right answer depends on more than your income.

Your existing IRA balances, workplace retirement plans, current and future tax situation, investment growth and plans for using your money all matter.

The goal isn't simply to have “more Roth.”

It's to build a retirement strategy where you have different types of money available for different situations.

If you're earning well, saving consistently and wondering whether a backdoor Roth makes sense for your financial picture, that's exactly the kind of question worth looking at before you make the contribution.

Want help figuring out whether a backdoor Roth fits into your bigger financial plan?

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