Should You Use an Immediate Annuity or Keep the Money Invested?

One of the most common retirement-income tradeoffs sounds simple on paper: should you hand part of a portfolio to an insurer for immediate monthly income, or keep the money invested and draw from it yourself?

The temptation is to frame that as safety versus risk, or annuity versus no annuity. The stronger framing is more specific. Which version of the money does the plan need more right now: dependable income that starts soon, or liquidity and growth that stay under your control?

This article explains when an immediate annuity can look stronger, when keeping the money invested often looks stronger, and why the best answer is often about only part of the portfolio instead of an all-or-nothing bet.

Key Takeaways

• An immediate annuity usually converts a lump sum into income that begins soon after purchase and can help address longevity risk.
• Keeping the money invested preserves liquidity, growth potential, estate flexibility, and the ability to change course later.
• The decision usually gets stronger after the household has already estimated spending, reliable income, and how much the portfolio still needs to cover.
• An immediate annuity often looks better when the plan needs more dependable income now, not when the purchase is mainly a reaction to market fear.
• The best answer is often partial annuitization, not turning the entire portfolio into a contract or refusing annuities on principle.

Start With the Planning Problem, Not the Product Quote

This decision usually goes sideways when it starts with a sales illustration or a payout quote. It gets stronger when it starts with the retirement problem the household is trying to solve.

Is the portfolio being asked to cover too much essential spending? Is the retiree worried about outliving assets and wants a more dependable base of income? Is the household trying to reduce the pressure of making withdrawals during bad markets? Or does the plan still need flexibility because spending, health costs, housing, or family support may change?

If the plan has not yet estimated what retirement is supposed to cost or how much income is already dependable, the annuity-versus-invested question is probably too early. Start first with How Much Money Will You Really Need in Retirement? and How Should You Build a Retirement Income Floor?.

What an Immediate Annuity Actually Does

Investor.gov defines an immediate annuity as an annuity with no accumulation phase. Instead of building value for later, the contract usually begins income payments soon after purchase. In practice, that often means exchanging one lump sum for a stream of payments that starts within a year.

That trade can do one thing very well: turn part of a portfolio into more predictable income. It can also help shift some longevity risk away from the retiree, because the insurer is promising payments according to the contract rather than leaving the household to manage withdrawals entirely on its own.

But that stronger income promise is bought with tradeoffs. Once the money is committed, it is generally much less liquid than if it had remained in a portfolio, cash reserve, or taxable account under the household's direct control.

When an Immediate Annuity Often Looks Stronger

An immediate annuity often looks strongest when the retirement plan still has an essential-spending gap after counting Social Security benefits, pensions, or other reliable income. In that situation, using part of the portfolio to create more dependable monthly income can make the whole plan feel sturdier.

It can also look stronger when the household knows it wants less do-it-yourself withdrawal pressure. Some retirees do not want to keep judging every withdrawal against market conditions. Others know they may underspend out of fear unless part of the portfolio is converted into a paycheck-like income stream.

An immediate annuity may also earn a place when the household is more worried about outliving assets than about preserving every dollar for legacy or future flexibility. That is especially true when the annuity is being used to support a clearer income floor rather than to replace the entire investment strategy.

If the broader product-fit decision is still open, read Should You Use an Annuity in Retirement?.

When Keeping the Money Invested Often Looks Stronger

Keeping the money invested often looks stronger when flexibility is still doing more work than predictability. That includes households with uncertain spending, major near-term goals, unresolved housing plans, expected health-cost variation, or a desire to retain cleaner access to principal.

It can also look stronger when the retiree already has a solid income floor from Social Security and pensions. If essential spending is already well covered, the portfolio may be doing a different job: funding flexible spending, inflation protection, larger one-time expenses, gifting, legacy goals, or simply preserving optionality. In that setup, turning more money into fixed payments may solve a problem the plan does not actually have.

Keeping the money invested may also be the stronger answer when the household still needs a meaningful liquid reserve. If near-term spending pressure is the real concern, review How Much Cash Should You Keep in Retirement? before giving up portfolio control.

The Real Tradeoff Is Income Certainty Versus Flexibility and Upside

This is the heart of the decision. An immediate annuity can increase income certainty. Keeping the money invested preserves flexibility, liquidity, and growth potential.

With the money invested, the household can change the withdrawal rate, rebalance, spend less in a weak year, tap principal for a large expense, or leave money to heirs more cleanly if life does not go according to script. With an immediate annuity, the contract may provide welcome predictability, but the money no longer offers the same freedom.

That does not make either side automatically better. It means the household should be honest about which problem matters more. A retiree who needs steadier income may rationally trade away some upside and access. A retiree who needs optionality may rationally keep the money invested even if the annuity quote looks comforting.

This is also why the smartest answer is often partial. Using only part of the portfolio for an immediate annuity can strengthen the floor without forcing the whole retirement plan into one irreversible structure.

Sequence Risk, Inflation, and Legacy Goals Can Pull the Answer in Different Directions

An immediate annuity can reduce the pressure to sell investments during weak markets because part of spending is now being covered contractually. That can help when sequence-of-returns risk is one of the biggest threats in early retirement.

But inflation and legacy goals can pull the decision the other way. A fixed payment that feels reassuring on day one may lose purchasing power over time. And money committed to an immediate annuity is usually not money that stays easily available for heirs, charitable goals, or later-life flexibility.

This is one reason households should not compare the annuity only against a market chart. They should compare it against the actual job the invested money was supposed to keep doing.

If early-retirement market pressure is the bigger concern, continue with What Is Sequence of Returns Risk in Retirement?.

Social Security, Survivor Structure, and Other Income Sources Can Change the Answer

The annuity decision should never be made in isolation from the rest of the income plan. A household with strong Social Security and pension income may need much less annuity income than a household relying mostly on its own portfolio.

Survivor structure matters too. A higher payment based on one life may not look so attractive if it leaves a spouse with less income after one death. A joint or survivor-oriented payout may improve resilience later while reducing income now.

This is why the right comparison is not only annuity payment versus portfolio withdrawal. It is annuity structure versus the household's full income plan across both lives. For that branch of the question, read How Should Couples Plan Retirement Income for a Surviving Spouse?.

Taxes and Account Type Still Need a Slow Review

Taxes can also change how attractive the trade looks. IRS guidance makes clear that pension and annuity payments can be fully or partly taxable depending on the contract and the source of the money. That means the spendable after-tax income may differ from the headline payout.

Account location matters too. Investor.gov specifically cautions that if you buy an annuity inside a tax-deferred retirement plan such as a traditional IRA, you do not get extra tax deferral just because the wrapper is called an annuity. The question is whether the contract improves the retirement plan, not whether it sounds tax-advanced.

If the decision overlaps with pretax balances, Roth conversion windows, or future withdrawal pressure, review Which Retirement Accounts Should You Withdraw From First? and Should You Do a Roth Conversion Before Retirement?.

When Advice May Help

Advice can genuinely help when this choice is tied to several moving parts at once. That includes large pretax balances, survivor-income concerns, pension elections, Roth conversions, weak cash reserves, health uncertainty, or a question about whether the immediate annuity should replace only part of the portfolio instead of more.

The value of advice is not that someone pushes the product more confidently. It is that they help test whether the annuity improves the plan after spending, taxes, cash, Social Security, and survivor protection are reviewed together.

Where to Go Next

Read How to Review Whether an Annuity Belongs in Your Retirement Plan if the annuity decision still needs a structured workflow. Read Should You Use an Annuity in Retirement? if you still need the broader annuity-fit question. Read How Should You Build a Retirement Income Floor? if the real issue is how much dependable income the plan needs before the portfolio takes over. And read How Much Cash Should You Keep in Retirement? if near-term flexibility is still the bigger open problem.

The Bottom Line

An immediate annuity can be a strong tool when the retirement plan needs more dependable income and the household is comfortable giving up some liquidity to get it. Keeping the money invested often looks stronger when flexibility, growth, survivor options, or legacy goals still matter more than locking in another stream of payments.

The better answer is usually not ideological. It is the version of the money that does the right job for the retirement plan now.