A $300,000 Annuity Promises $1,900 a Month for Life, but Here Is What Retirees Give Up

For retirees who hate watching the stock market bounce around, the pitch is tempting: Put $300,000 into a single-premium immediate annuity, and collect roughly $1,900 a month for life. No market panic. No spreadsheet anxiety. It sounds like a clean way to get ahead financially when retirement income feels uncertain. But that number can look bigger than it really is.

A single-premium immediate annuity (SPIA), or immediate income annuity, turns a lump sum into a stream of income that can start soon after purchase. Annuity payout data shows that a $300,000 fixed immediate, life-only annuity for a 65-year-old buyer could pay about $1,798 a month for a woman or $1,886 a month for a man, depending on the assumptions.

That can be useful, but it can also be expensive in ways that aren't obvious at first glance.

Here's what retirees may give up when they trade a large lump sum for guaranteed lifetime income.

The payout rate is not the same thing as yield

A $1,900 monthly payment equals $22,800 a year. On a $300,000 purchase, that works out to a 7.6% payout rate. That sounds high, especially compared with many savings accounts, bonds, or dividend stocks.

But it's not the same as earning a 7.6% investment return. Each payment from a nonqualified immediate annuity can include both taxable income and a nontaxable return of principal. In plain English, part of every check may simply be your own money coming back to you slowly.

Life-only payments can leave nothing for heirs

The highest monthly payment usually comes from a single-life immediate income annuity because the insurer only has to pay while one annuitant is alive. This type of annuity pays only while the annuitant is living, offers the highest income, and may be best for buyers who aren't concerned about leaving money to heirs.

That trade-off is the point. A joint-life annuity can continue payments for a surviving spouse, while a life-with-period-certain option can continue payments to a beneficiary for a set period after death. However, those protections may lower the income amount because the insurer is guaranteeing payments for more than one life or for a longer period.

The money is no longer easy to reach

Liquidity is the big trade-off. After the "free-look period" ends, buyers are generally locked into an immediate annuity's terms and can't cancel it midstream to get back unused principal as a lump sum.

That matters in real life. A roof replacement, major dental bill, family emergency, or long-term health care surprise can arrive at the worst possible time. If most of your savings went into an annuity, that monthly check may feel reassuring — until you need access to a larger amount of cash.

Inflation can shrink a fixed check over time

A fixed $1,900 monthly check may feel strong in 2026. But 10 or 20 years later, it may not stretch nearly as far. Inflation doesn't need to be dramatic to cause damage; it just has to keep showing up.

Some annuities offer payments that rise over time, but those features usually come with a tradeoff. Inflation-adjusted options can start with 20% to 30% smaller monthly payments than level-pay versions, even if they may provide better long-term protection for retirees who live a long time. That's the trade: more money now, or more protection later.

The 4% rule keeps more flexibility

There's a reason annuities appeal to retirees. A basic 4% withdrawal from the same $300,000 portfolio would provide only $12,000 in the first year, or $1,000 per month. That is a real gap compared with roughly $1,900 from a life-only immediate annuity.

But the 4% approach has one major advantage: The money remains invested and accessible. The portfolio can grow, decline, be rebalanced, be adjusted, or be left to heirs.

Bottom line

An immediate annuity can help retirees turn savings into a steady paycheck, and that can bring real peace of mind. Could giving up access to $300,000 feel worth it if the trade-off is predictable income for the rest of your life?

There's no universal answer. A retiree with strong savings, no heirs to support, and a fear of outliving money may view the annuity as a useful income floor, while someone who values flexibility may prefer to start investing rather than commit to any irreversible annuity product. Before buying an annuity, compare quotes, read the contract, understand the insurer's financial strength, and talk with a financial advisor who can explain how the decision fits your full retirement plan.