Traditional IRA

A traditional IRA is the original individual retirement arrangement, created so workers could save for retirement with tax advantages outside an employer plan. The deal is tax deferral: a contribution may be deducted from your taxable income today, the investments compound without annual tax on dividends or gains, and the IRS collects when you withdraw, taxing distributions as ordinary income. The mechanics it shares with every other IRA — who's eligible to contribute, the annual cap shared with any Roth IRA you own, and picking a custodian — are covered on the umbrella page; what follows is what's specific to the traditional version.

The deduction is where traditional IRAs get complicated, and it turns on one question: is anyone in the household covered by a retirement plan at work? If neither you nor your spouse is, your contribution is fully deductible no matter how much you earn; there is no income ceiling at all. If you are covered by a plan at work (a 401(k), 403(b), or similar) the deduction phases out over an income range that the IRS adjusts annually: for 2026, $81,000 to $91,000 for single filers and $129,000 to $149,000 for married couples filing jointly where the contributing spouse is the covered one. Within the range the deduction shrinks proportionally rather than disappearing at a cliff. A third, considerably higher range applies to the narrower case where you are not covered at work but your spouse is: $242,000 to $252,000. A fourth applies to married filing separately, where the range is $0 to $10,000 and, unusually, is not adjusted for inflation.

Above the applicable range, you can still contribute — the contribution is simply nondeductible. That money becomes basis in the account and must be reported on Form 8606 for the year it goes in, and tracked from then on, so that it isn't taxed a second time on the way out. Skipping Form 8606 is one of the more expensive routine errors in personal finance, because the IRS has no other record that part of the account was already taxed. Nondeductible contributions are also the raw material for the backdoor Roth IRA strategy.

Once the money is inside, the defining feature is that nothing is taxed until it comes out. Dividends, interest, and realized gains all compound untouched, which over decades is worth meaningfully more than the same returns in a taxable account, but the deferral is a loan, not a pardon. Withdrawals before age 59½ are generally taxed and hit with a 10% penalty, with exceptions for cases such as higher-education expenses, a first home purchase within a dollar cap, and disability. And the account has a hard deadline on the back end: required minimum distributions begin at age 73 under current law, shifting to 75 for people born in 1960 or later, forcing taxable income out whether you need the money or not.

Seen from the traditional side, the traditional-versus-Roth choice is a bet on your own tax rate. A deductible contribution wins when your marginal rate today is higher than the rate you'll pay on the withdrawal, and loses when the reverse is true, which is why the traditional IRA tends to suit peak earning years and the Roth tends to suit early-career or unusually low-income ones. Two second-order factors push the same way: the deduction is worth more the higher your bracket, and the eventual RMDs can push a retiree's taxable income up enough to affect Medicare premiums and the taxation of Social Security. The counterargument for deferring anyway is that a bird in the hand is certain and future tax rates are not.

A hypothetical example: Dev, 45, earns $95,000, has no retirement plan at work, and contributes $7,500 to a traditional IRA in 2026. The full contribution is deductible, so if his marginal federal rate is 22%, the contribution reduces this year's tax bill by $1,650. The out-of-pocket cost of putting $7,500 to work is effectively $5,850.

The account then grows with no annual tax drag. Decades later, suppose Dev withdraws $20,000 in a retirement year. The entire withdrawal is taxed as ordinary income at whatever his rate is then. If he retired into a lower bracket than the 22% he deducted against, the deferral worked in his favor. Once he reaches RMD age, the IRS sets a minimum he must withdraw each year whether he needs the money or not.

Pros

• A deductible contribution cuts your tax bill in the year you make it, when your rate may be at its career peak.
• Tax-deferred compounding, with no annual tax on dividends, interest, or realized gains inside the account.
• Available to anyone with earned income, with spousal contributions allowed for a non-working spouse.
• Opens the door to later planning moves such as Roth conversions in low-income years.

Cons

• Deductibility phases out at moderate incomes if you're covered by a workplace plan.
• All deductible money and growth is taxed as ordinary income on withdrawal, with no access to lower capital-gains rates.
• Early withdrawals before 59 1/2 generally trigger a 10% penalty on top of tax.
• Required minimum distributions force taxable withdrawals starting at 73 (75 for those born in 1960 or later).