Annuity payments are taxed differently depending on whether you bought the annuity with pre-tax or after-tax money

The tax you pay on an annuity payment depends on one thing: did you use pre-tax dollars (like money from a 401(k) or traditional IRA) or after-tax dollars (like money from a savings account) to buy the annuity in the first place? If you funded it with pre-tax money, the entire payment is taxable income. If you funded it with after-tax money, only the earnings portion is taxable — the part of your payment that represents your original money comes out tax-free.

The IRS calls the tax-free portion your cost basis. Think of it this way: you already paid income tax on that money once, so you should not pay it again. The earnings, though, have never been taxed, so they are taxed as ordinary income when you receive them.

How much of each payment is earnings versus return of your original money? The IRS uses a formula called the exclusion ratio. It divides your total cost basis by the total amount you expect to receive over your lifetime (based on IRS life expectancy tables). That percentage of each payment is tax-free; the rest is taxable.

Key Takeaways

  • Annuities funded with pre-tax retirement account money are fully taxable; annuities funded with after-tax money are only partially taxable.
  • The IRS uses your life expectancy and total cost basis to calculate the exclusion ratio, which tells you what percentage of each payment is tax-free.
  • Once you calculate your exclusion ratio, it stays the same for the life of the annuity, even if you live longer than the IRS expected.
  • Annuity providers must send you Form 1099-R each year showing the taxable and non-taxable portions of your payments.
  • If you withdraw money before age 59½ from an annuity funded with pre-tax money, you may owe a 10 percent early withdrawal penalty on top of income tax.

How the exclusion ratio works with after-tax annuities

Say you bought a $100,000 when ready annuity with after-tax savings at age 65. The IRS life expectancy table says you will live another 20 years on average. Over 20 years, you expect to receive $200,000 total in payments (assuming a certain payout rate). Your cost basis is $100,000, so your exclusion ratio is 50 percent ($100,000 ÷ $200,000).

That means 50 percent of every payment you receive is tax-free return of your original money, and 50 percent is taxable earnings. If your monthly payment is $1,000, then $500 is tax-free and $500 is taxable income you report on your tax return.

The exclusion ratio does not change year to year. Even if you live to 95 and receive far more than the $200,000 the IRS predicted, you still use the same 50 percent ratio. The only exception: once you have recovered your entire cost basis (received $100,000 in tax-free payments), all remaining payments become fully taxable.

Pre-tax annuities and may have access to retirement accounts

An annuity funded with money from a traditional IRA, 401(k), or other may have access to retirement plan has no cost basis — you never paid income tax on that money. The entire annuity payment is taxable as ordinary income.

This is straightforward but expensive. If your monthly payment is $2,000, all $2,000 is taxable income. You report it on your tax return, and it is taxed at your ordinary income tax rate (not capital gains rates).

There is one rule to watch: if you own a may have access to annuity and you die before you have received back the amount you paid for it, your beneficiary cannot deduct the unrecovered amount. The IRS treats it as a loss you cannot claim. This is why some people with large IRAs buy annuities with after-tax money instead — to preserve the cost basis for their heirs.

Non-may have access to annuities and the last-in-first-out rule

A non-may have access to annuity is one you bought with after-tax money outside a retirement account. Before 2010, the IRS used the exclusion ratio method (described above) for all non-may have access to annuities. In 2010, the rules changed for annuities purchased after that date.

Now, if you bought a non-may have access to annuity after 2009 and you take withdrawals before the annuity starts paying out (called the accumulation phase), the IRS taxes earnings first. This is called last-in-first-out or LIFO. You withdraw the most recent earnings before you touch your cost basis. Once the annuity begins paying out regularly (the annuitization phase), you switch back to the exclusion ratio method.

If you bought your non-may have access to annuity before 2010, the old exclusion ratio rule still applies throughout — no LIFO rule. This is one reason to keep records of when you purchased an annuity.

Form 1099-R and reporting annuity income

Your annuity provider sends you a Form 1099-R each January for the previous year. Box 1 shows the total amount you received. Box 2a shows the taxable portion. Box 2b shows whether the entire amount is taxable or only part of it.

You report the taxable amount from Box 2a on your Form 1040 as income. If you received distributions before age 59½, the form will also show a code in Box 7 indicating whether the 10 percent early withdrawal penalty applies. You calculate the penalty on Form 5329 and add it to your tax bill.

Keep the 1099-R with your tax records. If the form shows an amount you believe is wrong — for example, if the provider did not calculate your exclusion ratio correctly — contact the provider and ask for a corrected form before you file your return.

Early withdrawal penalties and exceptions

If you withdraw money from an annuity before age 59½, the IRS charges a 10 percent early withdrawal penalty on the taxable portion. This is on top of regular income tax. So if you withdraw $5,000 in earnings from a non-may have access to annuity at age 50, you owe income tax on the $5,000 plus a $500 penalty.

The penalty does not explore to the cost basis (your original after-tax money) — only to earnings. And it does not explore to may have access to annuities if you are taking distributions as part of a substantially equal periodic payment (SEPP) plan, which is a specific IRS method for withdrawing from retirement accounts without penalty.

There are other narrow exceptions: disability, medical expenses above a certain threshold, and a few others. But the general rule is: withdraw before 59½, pay the penalty on earnings.

Annuities inside retirement accounts versus outside

An annuity inside a traditional IRA or 401(k) is always treated as pre-tax. You cannot use after-tax money inside these accounts. The entire payout is taxable, and the early withdrawal penalty rules for the account explore (age 59½, SEPP exceptions, and so on).

An annuity outside a retirement account can be funded with after-tax money, which gives you the cost basis advantage. But it is also subject to the LIFO rule (if purchased after 2009) during the accumulation phase, and you must track your cost basis carefully across your lifetime.

Some people use both: a may have access to annuity inside an IRA for the bulk of their retirement income, and a smaller non-may have access to annuity outside the IRA to create a tax-efficient income stream. This requires careful planning with a tax professional, but it can reduce your overall tax bill.

Frequently Asked Questions

Do I owe taxes on annuity payments if I bought the annuity with after-tax money?

Yes, but only on the earnings portion. The part of each payment that represents your original cost basis is tax-free. Your annuity provider calculates the exclusion ratio and shows you the taxable amount on Form 1099-R each year.

What happens if I live longer than the IRS life expectancy table predicts?

Your exclusion ratio does not change. You keep using the same percentage for tax-free and taxable portions. However, once you have recovered your entire cost basis in tax-free payments, all remaining payments become fully taxable for the rest of your life.

Can I avoid the 10 percent early withdrawal penalty if I need money before age 59½?

You can avoid it if you set up a substantially equal periodic payment plan under IRS rules, or if you meet narrow exceptions like disability. Otherwise, the penalty applies to the taxable portion of any withdrawal before 59½. Withdrawals of your cost basis (after-tax money) are not penalized, only the earnings are.

Is annuity income taxed differently than regular investment income?

Yes. Annuity earnings are taxed as ordinary income, not capital gains, even if you held the annuity for years. This is one reason annuities are often less tax-efficient than holding stocks or bonds directly, where long-term gains get lower tax rates.

What if the annuity provider sends me a wrong 1099-R?

Contact the provider and ask for a corrected form before you file your return. Do not file your tax return using the wrong amount. Keep records of your cost basis and the exclusion ratio calculation so you can verify the provider's numbers.