There is no Roth IRA minimum deposit set by the IRS. Federal law caps how much you can put in each year but says nothing about how little, so the real floor comes from the brokerage you choose and, often, from the specific fund or ETF you want to buy. At many large online brokers, that floor is now zero.
The IRS Sets No Floor
Nothing in the tax code requires a minimum contribution. The statute governing Roth IRAs establishes contribution ceilings and income-based phase-outs and leaves minimums alone.1Office of the Law Revision Counsel. 26 U.S. Code 408A – Roth IRAs You can open an account, put in nothing for a year or two, and still have a valid Roth IRA waiting when you’re ready.
You also don’t have to contribute every year. Skipping a year doesn’t close the account or change its tax status. The IRS caps how much can go in during a single tax year, not how little.2Internal Revenue Service. Retirement Topics – IRA Contribution Limits
What Brokerages Actually Require
Because the IRS is silent, the practical minimum depends on where you open the account. Most major online brokerages have eliminated account-opening minimums. Fidelity, for example, lets you open a Roth IRA with no minimum and start investing with as little as $1.3Fidelity Investments. Roth IRA – Powerful Way to Save for Retirement Schwab, Vanguard, and similar platforms have moved the same way.
That doesn’t mean any deposit will actually buy something. Your real minimum is whatever it costs to purchase your first investment. Fractional shares let you buy a sliver of a stock or ETF for a dollar or two. A target-date mutual fund, on the other hand, might require a $1,000 or $3,000 initial purchase. Check the investment minimum on the specific fund before assuming a tiny opening deposit will work.
Full-service brokerages and managed accounts tend to set higher thresholds, sometimes $500 to $5,000 or more, because they include personalized advice. Some providers also charge annual custodial or maintenance fees that can eat into a small balance quickly. Many waive the fee once your balance passes a set level, so ask before you sign up.
Eligibility Matters More Than Any Minimum
Before you worry about how much to deposit, confirm you can contribute at all. The IRS gates Roth IRA contributions on two things: earned income and total income.
You Need Earned Income
You can only contribute up to the amount of taxable compensation you earned during the year. That includes wages, salary, tips, bonuses, commissions, and net self-employment income. It also includes taxable alimony and nontaxable combat pay.2Internal Revenue Service. Retirement Topics – IRA Contribution Limits Investment income, rental income, Social Security, unemployment, and child support don’t count.
If you earned $3,000 in a given year, your Roth IRA contribution limit for that year is $3,000, even though the general cap is higher. A non-working spouse can still contribute through a spousal IRA as long as the couple files jointly and the working spouse earns enough to cover both contributions.2Internal Revenue Service. Retirement Topics – IRA Contribution Limits
Your Income Can Be Too High
The IRS phases out and eventually eliminates direct Roth contributions once your Modified Adjusted Gross Income (MAGI) passes certain thresholds. For 2026:4Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
- Single or head of household: full contribution below $153,000 MAGI, reduced between $153,000 and $168,000, none at $168,000 or above.
- Married filing jointly: full below $242,000, reduced between $242,000 and $252,000, none at $252,000 or above.
- Married filing separately (lived with spouse during the year): reduced from $0 to $10,000, none at $10,000 or above.
If you land inside a phase-out range, the IRS provides a worksheet to calculate your reduced limit.
Annual Maximums for 2026
The other side of the deposit question is the ceiling. For 2026:2Internal Revenue Service. Retirement Topics – IRA Contribution Limits
- Under age 50: $7,500.
- Age 50 or older: $8,600, which includes a $1,100 catch-up.
These caps apply to the total across all your traditional and Roth IRAs combined. Put $3,000 into a traditional IRA and, if you’re under 50, only $4,500 can go into a Roth that same year. Contributions for the 2026 tax year can be made until the tax filing deadline in April 2027.
If You Earn Too Much for a Direct Contribution
If your income exceeds the MAGI phase-out limits, direct contributions are off the table, but a two-step workaround often called a backdoor Roth is available. You make a nondeductible contribution to a traditional IRA, which has no income limit for nondeductible contributions, and then convert that money to a Roth IRA. Conversions have no income ceiling.
You’ll need to file IRS Form 8606 to report the nondeductible contribution and the conversion. Skipping that form triggers a $50 penalty.5Internal Revenue Service. Instructions for Form 8606 The main trap is the pro-rata rule: if you already have pre-tax money in any traditional IRA, the IRS treats all your traditional IRA balances as one pool when calculating the tax on a conversion, and the taxable share of your conversion is proportional to those pre-tax dollars. If your existing traditional IRA balance is large, a backdoor conversion can generate a sizable tax bill. Rolling pre-tax traditional IRA money into an employer 401(k) plan before converting, if the plan accepts incoming rollovers, is one way around the rule.
Depositing Too Much: the 6% Penalty
The bigger risk with Roth deposits isn’t putting in too little; it’s putting in too much. Depositing more than your allowed limit, or contributing when your income makes you ineligible, creates an excess contribution. The IRS charges a 6% excise tax on the excess for every year it remains in the account, and that penalty compounds annually until you fix it.6Internal Revenue Service. IRA Year-End Reminders
The simplest fix is to withdraw the excess contribution and any earnings it generated before your tax return due date, including extensions. Pull the money out in time and the excess is treated as if it never went in. Miss that window and the 6% tax hits for each year the overage sits in the account. If you discover the mistake late, you can also apply the excess toward a future year’s contribution limit, which stops the penalty going forward but doesn’t erase prior-year penalties already owed.