Traditional vs Roth IRA

Both accounts shelter your investments from yearly taxes on dividends and capital gains, so over decades they compound the same way. The difference is the timing of the income tax you owe on the money itself. A traditional IRA is funded with pre-tax dollars in the sense that the contribution may be deductible, lowering your taxable income the year you put money in. You then pay ordinary income tax on every dollar you withdraw in retirement, contributions and growth alike.

A Roth IRA flips that. You contribute with money you have already paid tax on, so there is no deduction today. In exchange, qualified withdrawals in retirement, including all the growth, come out completely tax-free. One account gives you the break up front; the other gives it to you at the end. Everything else about the two is mostly the same: same annual limit, same menu of investments, same tax-deferred growth in the middle.

Because the only real difference is when you are taxed, the decision comes down to one comparison: is your tax rate likely to be higher now or in retirement? If you expect to be in a higher tax bracket later, paying tax now at a lower rate (the Roth route) tends to leave you with more after-tax money. If you expect a lower bracket in retirement, deducting now at a high rate and paying later at a low rate (the traditional route) tends to come out ahead.

That gives the widely repeated rule of thumb: choose a Roth if you expect a higher future tax bracket, and a traditional IRA if you expect a lower one. In practice early-career savers, who are often in lower brackets today than they will be later, lean Roth, while high earners in peak earning years sometimes prefer the immediate traditional deduction. Nobody knows their future tax rate for certain, which is why many people hold both and split contributions to hedge. Walnut is informational and is not a financial or tax advisor; treat this as a framework, not a recommendation.

For 2026 the IRS set the IRA contribution limit at $7,500, up from $7,000 in 2025, with an additional $1,100 catch-up contribution if you are 50 or older (for a total of $8,600). That limit is shared across all your IRAs combined: if you have both a traditional and a Roth, your total contributions to the two cannot exceed the annual cap. You also need earned income at least equal to what you contribute. These figures are labeled for 2026 and adjust most years, so verify the current numbers at irs.gov before you contribute.

This is where the accounts genuinely diverge. A Roth IRA has income limits on who can contribute at all. For 2026 the ability to contribute phases out between $153,000 and $168,000 of modified adjusted gross income for single filers, and between $242,000 and $252,000 for married couples filing jointly. Earn above the top of your range and you cannot contribute to a Roth directly, though a conversion can still be an option.

A traditional IRA has no income limit on contributing, but it can have an income limit on the deduction. If you (or your spouse) are covered by a workplace retirement plan such as a 401(k), the deduction phases out as income rises. For 2026 a single filer covered by a workplace plan sees the deduction phase out between $81,000 and $91,000, and a married couple where the contributing spouse is covered phases out between $129,000 and $149,000. If neither spouse has a workplace plan, the traditional contribution is generally fully deductible at any income. Confirm the current ranges at irs.gov; this is general information, not tax advice.

A traditional IRA comes with required minimum distributions: under current rules you must start taking taxable withdrawals at age 73, whether you need the money or not, because the government wants to collect the deferred tax eventually. A Roth IRA has no required minimum distributions during the original owner's lifetime, so the balance can keep growing tax-free indefinitely and pass to heirs, which makes Roth attractive for estate and longevity planning.

Roth accounts are also more flexible before retirement. Because you already paid tax on your Roth contributions, you can withdraw that contributed money (not the earnings) at any time, tax-free and penalty-free. Earnings pulled out before age 59 and a half and before the account is five years old can be taxed and penalized. Traditional IRA withdrawals before 59 and a half are generally taxed and hit with a 10% penalty outside of specific exceptions. That accessibility is one reason Roth IRAs double as a flexible long-term savings vehicle for some people, though the account works best left to compound.

A Roth conversion moves money from a traditional IRA into a Roth IRA. You pay ordinary income tax on the converted amount in the year of the conversion, and from then on the money grows and is withdrawn tax-free. Crucially, there is no income limit on conversions, only on direct Roth contributions, which is why higher earners who are phased out of direct Roth contributions sometimes use a backdoor approach: contribute to a traditional IRA, then convert it.

Conversions can also make sense in a low-income year, such as early retirement before withdrawals or Social Security begin, when converting at a lower bracket can reduce future required distributions. They have real, immediate tax consequences and can interact with other parts of your return, so this is general information, not tax advice; a tax professional can model your specific situation.

The contribution and income figures above are labeled for 2026 and change most years; verify the current numbers at irs.gov before acting. For a deeper walk through each account on its own, see our Roth IRA explained and what is an IRA guides, or our Roth IRA vs 401(k) comparison if a workplace plan is also in the mix.

One point people miss: traditional versus Roth is the wrapper, not the investment. Both accounts can hold the same things, broad index funds, individual stocks, bonds, and the choice of wrapper does not change what you buy inside it. Many people use either IRA to hold a few low-cost, diversified funds and leave them to compound for decades. The wrapper decides the tax treatment; what you put in it decides the growth.

Walnut does not open IRAs or give tax advice, but once your retirement account is open at a broker, it can help you understand what you own. It connects your existing brokerage through SnapTrade and lets you ask, in plain language through Claude, ChatGPT, or a built-in assistant, how diversified your holdings are, where they overlap, and how each position is doing against the S&P 500. It is read-only by default, and you approve any trade. Walnut is informational and is not a financial or tax advisor.

A traditional and a Roth IRA hold the same investments and grow the same way; the difference is purely when you pay tax. Traditional gives a deduction now and taxes you in retirement, Roth gives no deduction now but pays out tax-free later. The deciding question is your tax rate today versus in retirement: lean Roth if you expect a higher future bracket, traditional if you expect a lower one, and consider holding both if you are unsure.

Beyond the tax timing, remember the practical differences for 2026: a shared $7,500 contribution limit, Roth income limits to contribute, traditional required withdrawals at 73 while Roth never requires them, and Roth contributions you can access early without penalty. Once an account is open, you can explore an ETF, look at an individual stock, or browse a theme to hold inside it. Limits and rules change most years; confirm the current figures at irs.gov and consult a tax professional before deciding.