SPIA Taxes: IRA vs. Roth vs. After-Tax Funding Explained

Ask five people whether SPIA income is taxable, and you'll get five confident, contradictory answers — because the real answer depends entirely on one detail most people never think to mention: where the money came from before it became a SPIA.

A SPIA doesn't have its own tax rule. It borrows one. The exact same contract, paying the exact same $2,000 a month, can be fully taxable, mostly tax-free, or completely tax-free — and the SPIA itself never changes. What changes is whether that money sat in a traditional IRA, a Roth IRA, or an ordinary savings account before it was converted into income. Get the funding source right in your head, and the tax treatment stops being a mystery.

Take Jane. She already knows her $216,000 straight-life SPIA pays her $2,000 a month, and that 45% of every check comes back to her tax-free. But that number only holds because of where the $216,000 came from — after-tax savings. Change the source, and everything below changes with it.

Same $216,000, Three Different Tax Bills

A SPIA doesn't create a tax rule. It doesn't erase one either. It's a pass-through — the contract simply carries forward whatever tax treatment the money already had. That's the whole idea to hold onto before getting into the mechanics below: the exclusion ratio, the pro-rata rule, the Roth ordering rules — none of them are about the SPIA. They're about the account the SPIA was funded from.

Three funding sources, three outcomes, same $2,000 monthly check:

Why an Income Annuity Inside an IRA Isn't Redundant

Jane's heard the rule before: don't put an annuity inside your IRA — you're already getting tax-deferred growth, why pay for the same thing twice? That rule makes sense — but only for the kind of annuity that's built to grow your money over time. Putting that type inside an IRA really is doubling up on something you already have.

A SPIA is different. Nobody buys one to grow money — they buy it for one thing: a paycheck that never stops, no matter what. It doesn't matter if the stock market crashes or Jane lives to be 900 years old — the check still shows up. No other financial product promises that. Whether that income happens to come from money that was already growing tax-deferred is really a separate question. It's not why Jane bought it, and it doesn't take away what makes a SPIA valuable in the first place: income she can't outlive.

Other assets can grow — but growth is never promised, it's just hoped for. A SPIA's income is guaranteed and it shows up, no matter what the market's doing. That's the real distinction behind "insurance responds" — it's not just that insurance does something when other assets can't, it's that insurance is guaranteed to, while everything else is just hoping to.

Funded With a Traditional IRA

Start with the version most people already assume is true, because for most people, it is.

The Default Rule: Every Dollar Is Taxable

If Jane's $216,000 came from a traditional IRA made up entirely of pre-tax money — the kind built from deductible contributions, employer rollovers, or 401(k) transfers — every dollar of her $2,000 monthly SPIA payment is taxed as ordinary income. There's no exclusion ratio, because there's no basis to exclude. She never paid tax on that money going in, so the IRS collects on all of it coming out. This is true whether the payments start at 65 or 85, and it doesn't change over time the way the exclusion ratio eventually does for a non-qualified contract.

The Exception Almost Nobody Accounts For: Nondeductible IRA Basis

Here's the part the "IRA = 100% taxable" rule of thumb leaves out. If Jane ever made a nondeductible contribution to a traditional IRA — meaning she put money in but didn't take a tax deduction for it, often because her income was too high to qualify for the deduction — that portion of her IRA is after-tax money sitting inside a pre-tax wrapper. The IRS tracks this on Form 8606, and it doesn't disappear just because the IRA gets annuitized into a SPIA.

When a traditional IRA that contains this kind of after-tax basis is converted into a SPIA, the same basic idea behind the exclusion ratio applies — just scaled down. Instead of the full premium counting as tax-free "investment in the contract," only the after-tax basis portion does. The rest of the payment stream is taxed as ordinary income, the same as a fully pre-tax IRA.

Example (illustrative only): Suppose Jane has $60,000 of nondeductible basis tracked across all her traditional IRAs, and the total value of those IRAs is $600,000 — the $60,000 is 10% of the total. If she annuitizes $216,000 of that IRA into her SPIA, roughly 10% of each $2,000 payment — about $200 — would be treated as a tax-free return of her after-tax basis, and the remaining $1,800 would be taxable.

The part that trips people up: this calculation isn't based on the one IRA she's annuitizing. The IRS requires you to look at all of your traditional, SEP, and SIMPLE IRAs together when figuring out what percentage of a distribution is basis versus taxable earnings. If Jane has three IRAs at three different custodians and her nondeductible contributions all went into just one of them, she still can't treat that one account as fully after-tax — the basis gets spread proportionally across everything. This aggregation rule is explained in IRS Publication 590-B and the Form 8606 instructions.

This is a simplified educational walkthrough, not tax advice. If you've made nondeductible IRA contributions and are considering annuitizing any portion of a traditional IRA, bring your Form 8606 filing history to your tax preparer before you sign a contract — the basis figure has to be right, and it's much easier to get right before annuitization than after.

Funded With After-Tax Savings

If Jane's $216,000 came from a regular brokerage account or savings — money she'd already paid income tax on — the exclusion ratio applies the way it's meant to: a fixed percentage of every payment, set at the start of the contract using the IRS's own life-expectancy table, comes back to her tax-free. That's the 45% figure from her original example. We walk through exactly how that percentage gets calculated, including the Table V mechanics and what happens once her full premium has been returned, in How a SPIA Is Taxed: The Exclusion Ratio.

Funded With a Roth IRA

This is the funding source competitors barely touch, and it's also the one with the best possible outcome — when it's set up right.

Qualified Distributions: No Exclusion Ratio Needed at All

If Jane's SPIA came from a Roth IRA, and her distributions count as "qualified," her entire $2,000 monthly payment is tax-free. Not partially excluded like a non-qualified SPIA — completely tax-free, every payment, for life. There's no exclusion ratio to calculate because the IRS doesn't need one; qualified Roth money was never going to be taxed again.

A distribution is qualified when both of these are true:

• At least five years have passed since Jane opened and funded her first Roth IRA (this clock starts January 1 of that first year, and it only has to happen once — it's not restarted by a new Roth account)
• Jane is 59½ or older when the distribution happens (there are a few other qualifying events — death, disability — but age is the common one for retirement income planning)

Non-Qualified Distributions: The Ordering Rules Get Complicated

If Jane hasn't met both conditions — say she's 55 and wants income sooner, or her Roth is younger than five years — her SPIA payments aren't automatically tax-free. The IRS applies ordering rules to figure out what's being distributed first: her original contributions come out tax- and penalty-free no matter what, then converted amounts (oldest conversions first, each with its own five-year clock for penalty purposes), and only after both of those are exhausted do earnings come out — and earnings are the piece that can trigger both income tax and the 10% early withdrawal penalty if she's under 59½.

Here's the wrinkle specific to annuitizing a Roth: those ordering rules were written with a single lump-sum or periodic withdrawal in mind, not a continuing SPIA income stream. Once a Roth IRA is annuitized, figuring out which "layer" of money — contributions, conversions, or earnings — each ongoing payment represents gets genuinely complex. If Jane doesn't yet meet the five-year and 59½ thresholds, this isn't a do-it-yourself calculation. It's worth having a tax professional confirm the treatment before she annuitizes, not after her first 1099-R arrives.

For most retirees actually shopping for SPIA income — meaning 59½ or older, with a Roth that's been open five-plus years — this section resolves simply: the income is fully tax-free, full stop. The complexity above mainly matters for someone annuitizing a Roth earlier than a typical retirement timeline. Full source detail on the ordering rules and the five-year tracking is in IRS Publication 590-B.

Starting Income Before 59½: Does Annuitizing Trigger the Penalty?

Everything above assumes Jane is already past the age where early-withdrawal penalties are a concern. If she wanted her SPIA income to start earlier — say, at 55 — funding it from a traditional IRA raises a different question: does converting that IRA into a SPIA trigger the 10% early withdrawal penalty on top of ordinary income tax?

Generally, no — and this is one case where a true SPIA has a real advantage over simply withdrawing from an IRA early. Genuinely annuitizing an IRA — converting it into an irrevocable stream of guaranteed payments over Jane's life expectancy — independently satisfies the "series of substantially equal periodic payments" exception under IRC §72(t)(2)(A)(iv). That's a separate path from the three IRS-approved SEPP calculation methods (fixed amortization, fixed annuitization, and required minimum distribution) most early-withdrawal planning revolves around. Those three methods exist for money that stays invested and gets withdrawn on a schedule. A true SPIA doesn't stay invested — the insurer takes the premium and owes Jane a guaranteed payment for as long as she lives — and that structure meets the exception on its own terms.

This note covers straightforward SPIA annuitization only. It doesn't extend to income riders, guaranteed lifetime withdrawal benefits, or other features layered onto a deferred contract — those raise separate qualification questions with their own open issues, which we cover in full in our early-withdrawal-penalty guide once it publishes. As always, confirm your specific structure with a tax professional before annuitizing early — a genuine SPIA and an income rider that merely mimics one are not treated the same way under §72(t).

Frequently Asked Questions

Is a SPIA taxable if funded by an IRA?

Usually, yes — if the IRA is made up of pre-tax money, 100% of every SPIA payment is taxed as ordinary income. The exception is if you've made nondeductible (after-tax) contributions to that IRA over the years; in that case, a small portion of each payment tied to your after-tax basis comes back tax-free, similar in concept to the exclusion ratio on a non-qualified SPIA.

Do I owe taxes on SPIA income from a Roth IRA?

If your distributions are "qualified" — meaning your Roth has been open at least five years and you're 59½ or older — no, your entire SPIA payment is tax-free for life. If those conditions aren't both met yet, part of your payment could be taxable and potentially subject to a penalty, and the calculation gets complicated once the Roth is annuitized. Talk to a tax professional before annuitizing a Roth that doesn't yet meet both conditions.

What is the Form 8606 pro-rata rule, and how does it affect an IRA-funded SPIA?

Form 8606 tracks any nondeductible (after-tax) contributions you've made to traditional IRAs. If you annuitize an IRA that contains this kind of basis, that after-tax amount isn't taxed again — but the IRS requires you to calculate it based on all your traditional, SEP, and SIMPLE IRAs combined, not just the account you're annuitizing.

Does the exclusion ratio apply to IRA-funded SPIAs?

Not in the way it applies to non-qualified SPIAs. A fully pre-tax IRA has no basis to exclude, so there's no exclusion ratio — everything is taxable. If the IRA has nondeductible basis, a similar concept applies on a smaller scale, using just that basis amount rather than the full premium.

Can I avoid the 10% early withdrawal penalty by annuitizing my IRA before 59½?

Genuinely converting an IRA into a SPIA generally satisfies the substantially-equal-periodic-payments exception to the penalty on its own. This applies to true annuitization — it doesn't automatically extend to income riders or other features that produce annuity-like payments without a full annuitization.

Every scenario above assumes a standard, straightforward SPIA. For the full picture of how SPIA income fits into your broader retirement plan — payout options, what a beneficiary guarantee costs you, and how to size a SPIA against your other income sources — see the complete Single Premium Immediate Annuities guide.

This article is educational and general in nature — not personalized tax advice. Consult a qualified tax professional regarding your specific IRA basis, Roth timeline, and funding source before purchasing a SPIA.