Roth Conversions With Annuities: The Complete Guide for Pre-Retirees

For most savers heading toward retirement, the largest single bill of their lifetime is one they have never seen: the future tax bill sitting inside their traditional IRA or 401(k). Every dollar in those pre-tax accounts has a silent partner — the IRS — and the size of that partner's share is set by tax rates Congress will choose decades from now. A Roth conversion is the strategy of paying that bill on your terms, today, at a rate you can see. Pair it with the right annuity, and you can convert not just dollars, but uncertainty itself — turning a volatile, taxable pile into a predictable, tax-free stream of retirement income.

This guide walks through how Roth conversions work, why annuities are uniquely suited to hold converted dollars, the multi-year "conversion ladder" strategy used by experienced retirement planners, and the specific traps — IRMAA, the pro-rata rule, the five-year clock — that derail well-intentioned plans. It is written for savers in their 50s and 60s who have done well, who suspect taxes are heading higher, and who want their retirement income to be boring in the best possible way.

What a Roth Conversion Actually Does

A Roth conversion moves money from a pre-tax retirement account — a traditional IRA, SEP-IRA, SIMPLE IRA, or eligible 401(k) — into a Roth IRA. The amount converted is added to your ordinary income for that tax year. You pay income tax on it now. In exchange, three things happen to those dollars going forward:

1. They grow tax-free for the rest of your life.
2. Qualified withdrawals are tax-free, with no tax owed by you, your spouse, or your heirs on the principal or the growth.
3. There are no Required Minimum Distributions during your lifetime. The money can sit, compound, and pass to beneficiaries on your timeline, not the IRS's.

The decision is fundamentally a bet on tax rates. If your marginal rate in retirement will be higher than your rate today, converting now is profitable. If your rate in retirement will be lower, you are better off leaving the money pre-tax. For most affluent households, the math currently favors conversion — the 2017 Tax Cuts and Jobs Act lowered brackets through 2025, and the federal deficit makes a return to higher rates increasingly likely.

Why Annuities Belong in the Conversation

Annuities are insurance contracts, not market products. That distinction matters more after a Roth conversion than at any other point in a saver's life, for four reasons:

Tax-deferred growth is redundant inside a Roth. A common objection to annuities is that their tax deferral is wasted in an IRA. That objection evaporates inside a Roth — the Roth wrapper already makes growth tax-free, so you are not paying for a feature you cannot use. What you are paying for is the contractual guarantee, which is the actual point.

Sequence-of-returns risk disappears. The single greatest threat to a retirement income plan is a bad market in the first five years of withdrawals. A fixed or fixed-indexed annuity inside a Roth removes that risk entirely from the portion of assets it holds. The income is contractually guaranteed by the carrier, not subject to market drawdowns.

Lifetime income riders become tax-free income. A guaranteed lifetime withdrawal benefit (GLWB) inside a Roth IRA produces income payments that are 100% tax-free for life. Outside a Roth, those same payments would be partially or fully taxable.

Conversion math gets cleaner. When you convert into an annuity that begins paying a defined income at age 65 or 70, you can model the conversion decision against a known future cash flow, not a hypothetical market outcome. That makes the "should I pay the tax now?" question answerable instead of speculative.

The Conversion Ladder: A Multi-Year Strategy

A single large conversion in one year is almost always the wrong move. It bunches income, pushes you into higher brackets, can trigger IRMAA Medicare surcharges, and may waste years of unused lower-bracket space. The standard approach used by retirement income planners is a conversion ladder — a series of partial conversions, sized each year to fill specific brackets without overflowing.

The richest opportunity is usually the window between retirement and age 73 (the current RMD start age). In those years, earned income has stopped, Social Security may not yet have started, and RMDs have not yet begun. Many households spend these years in the 12% or 22% bracket even though their balances suggest a much higher long-term rate. Converting aggressively in this window — "filling up" the 22% or 24% bracket each year — moves enormous amounts of money out of the pre-tax silo at favorable rates.

A typical five-year ladder for a couple retiring at 62 might look like this:

• Age 62–64: Convert $80,000–$120,000 per year, filling the 22% bracket. Pay tax from a taxable brokerage account, not from the conversion itself.
• Age 65: Watch the IRMAA threshold — Medicare premium surcharges are based on income from two years prior. Size the conversion to stay under the relevant tier.
• Age 66–72: Continue converting up to the 24% bracket. Coordinate with Social Security claiming strategy.
• Age 73+: RMDs begin on whatever remains in the pre-tax account. By this point, the pre-tax balance should be small enough that the RMD does not push you into a punitive bracket.

The converted dollars land in a Roth IRA, where they can be allocated to an annuity contract chosen to begin income at a defined future date.

The Five-Year Rule Most People Get Wrong

Roth IRAs have not one but two five-year rules, and conflating them is a common, expensive mistake.

The contribution five-year rule governs whether earnings (not contributions) come out tax-free. It starts the clock on January 1 of the first year you contribute to any Roth IRA. Once that clock is satisfied — and you are over 59½ — all qualified earnings are tax-free.

The conversion five-year rule is separate. Each conversion has its own five-year clock. If you withdraw converted principal before that conversion's clock runs and you are under 59½, a 10% penalty applies (the conversion itself was already taxed, so no income tax is owed on the principal — only the penalty).

Practical implications for a 60-year-old converting today: - Earnings on the conversion are tax-free only after the contribution five-year clock is satisfied. - The 10% early-withdrawal penalty does not apply because you are over 59½. - If you have never had any Roth IRA before, open and fund one with even a small amount before December 31 of the year you start converting. That single action begins the contribution clock that will eventually make all earnings tax-free.

The Pro-Rata Rule: The Silent Tax Trap

If you have any pre-tax money in a traditional IRA, SEP-IRA, or SIMPLE IRA, the IRS will not let you cherry-pick which dollars you convert. Every conversion is treated as a proportional slice of all your IRA balances combined — pre-tax and after-tax — under what is called the pro-rata rule.

Example: A saver has $90,000 of pre-tax money and $10,000 of after-tax (non-deductible) contributions across all IRAs. They convert $10,000, hoping to convert only the after-tax dollars tax-free. The IRS instead treats the conversion as 90% pre-tax and 10% after-tax. They owe income tax on $9,000 of the $10,000 conversion.

The rule does not include 401(k) balances in the calculation. This creates a planning opportunity: rolling pre-tax IRA money into an existing employer 401(k) before conversion (the "reverse rollover") can isolate the after-tax dollars and allow a clean, tax-free conversion of those amounts — sometimes called a "backdoor Roth" cleanup. This is a meaningful structural decision and should be coordinated with an attorney and CPA before execution.

IRMAA: The Medicare Cliff

Beginning at age 63 (because Medicare uses income from two years prior), conversion size starts to interact with Medicare Part B and Part D premiums. The Income-Related Monthly Adjustment Amount (IRMAA) adds surcharges in tiers — a single dollar over a threshold can move both spouses up an entire tier and cost thousands per year for the rest of their lives.

For a married couple in 2026, the first IRMAA tier currently begins around $212,000 of modified adjusted gross income. Conversions for couples approaching or in Medicare should be sized with these tiers explicitly in view, leaving a buffer for dividends, interest, and any other late-year income.

The mistake to avoid: converting "to the top of the 24% bracket" without checking the IRMAA tier sitting underneath it. The headline tax rate may be 24%, but the effective cost — bracket + IRMAA surcharge + lost subsidies — can quietly reach 35% or more.

Paying the Tax: Where the Money Comes From

The single largest variable in whether a conversion creates wealth is where you pay the tax from. There are three options, in order of preference:

1. Pay from a taxable brokerage or savings account. This is the gold standard. Every dollar converted lands intact inside the Roth. The household's effective Roth balance grows substantially over time because the saver has, in effect, moved taxable assets into a tax-free shelter by paying off the IRS lien on the pre-tax account.

1. Pay from the conversion itself (if over 59½). Acceptable but inferior. A 24% tax means only 76 cents of every converted dollar reaches the Roth. The math still works if future rates are meaningfully higher, but the breakeven horizon extends.

1. Pay from the conversion itself (if under 59½). Generally a mistake. The amount withheld for tax is treated as a distribution, not a conversion, and triggers the 10% early-withdrawal penalty on that portion. Avoid.

The cleanest structure: a dedicated taxable side account funded with enough cash to cover the projected tax bills for the full conversion ladder. This removes the temptation to shrink the conversion when the tax bill arrives.

Inheritance: Where Roth + Annuity Quietly Wins

The SECURE Act of 2019 eliminated the "stretch IRA" for most non-spouse beneficiaries. Inherited traditional IRAs must now be drained within 10 years, often forcing heirs to take large distributions in their peak earning years at their highest tax rates. An inherited Roth IRA is also subject to the 10-year rule — but every dollar comes out tax-free.

A Roth IRA holding an annuity adds a second layer of planning value. Most non-qualified annuities offer a stretch provision for non-spouse beneficiaries that allows the inherited death benefit to be paid out over the beneficiary's life expectancy as a series of payments rather than a lump sum. Inside a Roth, those payments are tax-free income to the heir, structured as a multi-decade cash flow rather than a 10-year forced liquidation.

For families focused on intergenerational wealth protection, this combination — a Roth as the tax wrapper, an annuity as the distribution mechanism — is one of the more elegant structures available.

Common Mistakes That Quietly Destroy the Strategy

• Converting in a high-income year. A bonus, a business sale, or a large capital gain can stack on top of a conversion and push it into the next bracket. Conversions are best timed in low-income years.
• Forgetting state taxes. Some states tax conversions; some do not. Some tax Roth distributions; most do not. The state-level math matters, especially if a move is planned.
• Ignoring the widow's tax trap. When one spouse dies, the survivor moves from married-filing-jointly to single brackets — roughly half the bracket width at the same income. Conversions completed while both spouses are alive shrink the future tax exposure for the surviving spouse.
• Treating the Roth as a market account. A Roth IRA holding a fixed-indexed annuity with a lifetime income rider behaves very differently than a Roth holding equity funds. The choice should be driven by what role the dollars play in the retirement income plan, not by which has the higher hypothetical return.
• Skipping the contribution clock. Failing to open any Roth before December 31 of the first conversion year can delay tax-free access to earnings unnecessarily.

Is This Strategy Right for You?

Roth conversions paired with annuities tend to make sense when most of the following are true: - A meaningful portion of retirement savings sits in pre-tax accounts. - You are between 55 and 72, with at least one low-income window before RMDs begin. - You have taxable assets available to pay the conversion tax. - You expect to leave a meaningful balance to a spouse, children, or grandchildren. - You value contractual income certainty over market upside on at least part of your retirement savings.

The wrong fit: households with no taxable assets to pay tax from, savers already in the top bracket with no expectation of a lower-income window, or anyone who needs full liquidity on every dollar of their savings.

The Bottom Line

A Roth conversion is not a product. It is a multi-year tax engineering decision that, executed well, can move hundreds of thousands of dollars out of the IRS's reach and into a structure that pays your family tax-free income for life. Holding those converted dollars inside an annuity adds the one thing market accounts cannot offer — a contractual guarantee that the income will arrive, on schedule, regardless of what the market does in the meantime.

The strategy works because it answers two questions at once: what tax rate should I pay? and what income am I guaranteed to receive? For households that want their retirement to be defined by certainty rather than by hope, that combination is hard to beat.

This article is for educational purposes only and does not constitute tax, legal, or financial advice. Roth conversions and annuity contracts vary by state, carrier, underwriting, eligibility, and individual circumstances. Coordinate any conversion strategy with your attorney and CPA before execution.