An IRA is not an investment. It is a wrapper around investments that changes how they are taxed, and the most common mistake is opening one, funding it, and leaving the money in cash because nobody said there was a second step.
The same contribution limit covers both together, and the choice is a bet on your tax rate now against your tax rate in retirement.
Roth eligibility phases out above an income limit, and traditional deductibility phases out if you also have a workplace plan. Both thresholds move every year, so check the current ones at IRS.gov rather than trusting any figure printed on a page like this one.
A nondeductible contribution to a traditional IRA, converted to Roth. It is legal, ordinary, and about ten minutes of work, but the order matters and one rule catches people out.
The pro-rata rule. If you hold any other pre-tax IRA money, a traditional, SEP, or SIMPLE IRA, the conversion is taxed pro-rata across all of it rather than just the new contribution. You cannot convert only the after-tax part. A rollover IRA sitting from an old job is the usual culprit, and rolling it into a current 401(k) first is the usual fix. If you are in this position, this is the point to ask someone, because getting it wrong creates a tax bill you did not plan for.
Not ranked, and no price column: all of these open an IRA for nothing and trade stocks and ETFs commission-free. What differs is fund minimums, how cleanly the backdoor conversion runs, and what they pay on uninvested cash, which varies by several percentage points and is how some of them make their money.
Contributing is not investing. Money that lands in an IRA sits in a cash settlement fund until you buy something with it. Uninvested IRA money is the single most common expensive mistake at this rung.
You have until the tax deadline. An IRA contribution for a given year can be made until that April, which means two years can be funded in a few months if you are catching up.
We do not recommend specific investments, funds, or allocations, and nothing here is personalized investment advice. This page is about which account to use.
See what a year of contributions is worth over time with net worth projection, or what a pre-tax contribution saves you this year with the tax calculator.