How to Add Money to a Roth IRA: Methods, Limits, and Deadline

To add money to a Roth IRA, you send funds to the custodian holding the account — usually by online bank transfer, mailed check, wire, or payroll deduction — and tell them which tax year the contribution is for. For 2026, you can put in up to $7,500, or $8,600 if you’re 50 or older, provided you have earned income and your modified adjusted gross income (MAGI) falls under the annual thresholds.¹ Before you move a dollar, confirm you’re eligible and calculate the exact amount of room you have.

Confirm You’re Eligible to Contribute

Two tests decide whether you can put money into a Roth IRA at all.

The first is earned income. You need wages, salary, tips, self-employment income, or professional fees. Investment returns, rental income, pensions, and interest don’t qualify.² If everything you brought in last year was passive, direct Roth contributions are off the table.

The second is income level. Your MAGI determines whether you get the full contribution, a reduced one, or nothing. The 2026 phase-out ranges are:¹

Single or head of household: full contribution below $153,000, reduced from $153,000 to $168,000, none at $168,000 or above.
Married filing jointly: full contribution below $242,000, reduced from $242,000 to $252,000, none at $252,000 or above.
Married filing separately (if you lived with your spouse at any point in the year): the phase-out is $0 to $10,000, so almost any income shuts off direct contributions.

Land inside a phase-out range and your allowed contribution shrinks proportionally. The further into the window, the less you can put in. A single filer with a MAGI of $160,500, roughly halfway through the range, could contribute only about half the full limit.³ The IRS rounds the calculation up to the nearest $10, and there’s a floor: any positive result gives you at least $200 of room.

Know How Much Room You Have

The $7,500 limit ($8,600 at 50 or older) applies across all your traditional and Roth IRAs combined, not to each account separately.⁴ Drop $3,000 into a traditional IRA and, if you’re under 50, you only have $4,500 of Roth space left for the year. This is the detail people miss most often.

There’s also a compensation cap. You can never contribute more than your taxable compensation for the year. If you earned $5,000, $5,000 is your limit regardless of the statutory ceiling.⁴

Couples filing jointly get a useful option: a non-working spouse can contribute to their own Roth IRA based on the working spouse’s earnings. Each spouse can contribute up to the full limit, as long as combined contributions don’t exceed the taxable compensation on the joint return.⁴ Each spouse needs their own account; IRAs are always individual, never joint. The same MAGI rules apply, using the couple’s joint income.

Ways to Send the Money

You’ll need your Roth IRA account number from the custodian holding it, plus the routing and account numbers for wherever the money is coming from. Most custodians accept several methods.

Online Bank Transfer (ACH)

The most common route. You log into the custodian’s site or app, link a bank account, and initiate a transfer through the ACH network. Funds usually land within one to three business days, and many brokerages let you invest immediately while the transfer settles in the background.

Check by Mail

Mail a personal check to the custodian’s processing center. Make it payable to the custodian, not to yourself, and write your Roth IRA account number and the contribution year in the memo line. The year matters especially in January through April, when a deposit could apply to either the prior year or the current one; without the note, it defaults to the current calendar year.

Payroll Deduction

Some employers run payroll deduction IRA programs that route part of each paycheck straight to your Roth IRA. The employer forwards the after-tax deduction to your chosen financial institution. Nothing changes on your W-2, and the employer has no filing obligations tied to it.⁵ The value is automation: contributions happen without you thinking about them.

Wire Transfer

A bank wire gets money in faster than ACH. Wires sent before the custodian’s cutoff (typically around 4 p.m. ET) usually clear the same business day. Your bank will likely charge a fee, often $15 to $30 for domestic wires. Useful when you’re up against a deadline.

Mark the Contribution Year

Every contribution has to be tagged to a tax year. From January 1 through the April filing deadline, you can apply a contribution to either the prior year or the current one. The custodian will ask during an online transfer, or look for the year in a check’s memo line. The custodian then reports the contribution to the IRS on Form 5498, and a mismatch between what you meant and what got reported creates real problems at tax time.⁶

The Deadline

You have until the federal tax-filing deadline to make a contribution for the prior year. For tax year 2026, that’s April 15, 2027. Filing an extension doesn’t extend the contribution deadline — it stays at the original due date of the return.⁴ Miss it and that year’s room disappears; unused space doesn’t carry forward.

The IRS occasionally extends retirement-plan deadlines for taxpayers in federally declared disaster areas, on a case-by-case basis after a presidential declaration.⁷ If your area is affected, check the IRS newsroom for a specific announcement before assuming you have extra time.

If Your Income Is Too High: The Backdoor Roth

If your MAGI exceeds the Roth thresholds, direct contributions are closed, but there’s a workaround. Conversions from a traditional IRA to a Roth IRA have no income limit; only direct Roth contributions do.⁸

The two steps: contribute after-tax money to a traditional IRA (a nondeductible contribution), then convert that balance to a Roth IRA, ideally soon enough that little or no earnings have accrued. Because the money was taxed on the way in, the conversion generates little or no additional tax.

File Form 8606 with your tax return to report both the nondeductible contribution and the conversion.⁹ Without it, the IRS has no record that the contribution was after-tax, and you can end up paying tax on the same money twice.

One large caveat: the pro-rata rule. If you hold any pre-tax money in traditional, SEP, or SIMPLE IRAs, the IRS treats every conversion as coming proportionally from your combined pre-tax and after-tax IRA balances. The backdoor works cleanest when your pre-tax IRA balance is zero. Rolling existing traditional IRA balances into an employer 401(k) or 403(b) first can clear the way, since employer plans aren’t counted for pro-rata purposes. And note that since 2018, a Roth conversion cannot be undone through recharacterization. Once done, it’s permanent.¹⁰

If You Put in Too Much

Overcontributing triggers a 6% excise tax on the excess, and the penalty repeats every year the surplus stays in the account.¹¹ It happens more often than people expect. A bonus or stock sale can push your MAGI past the phase-out and turn part of a contribution into excess. You have two clean fixes if you catch it in time.

Withdraw the Excess

The simplest fix: pull out the excess plus any earnings it produced, by your tax-filing deadline including extensions. For a 2026 excess, that’s April 15, 2027, or October 15, 2027 with an extension. The earnings portion is taxable in the year of the excess contribution, but the SECURE 2.0 Act eliminated the 10% early-withdrawal penalty on those earnings for IRA owners under 59½. If the account lost value, you’ll take out less than you put in.

Recharacterize as a Traditional IRA Contribution

Alternatively, tell your custodian to recharacterize the Roth contribution as a traditional IRA contribution. This treats the money as if it had gone into a traditional IRA all along, which has no income limit on contributions (deductibility is a separate question). The deadline is the same — tax-filing due date including extensions.¹⁰ The custodian moves the contribution plus attributable earnings between accounts. For high earners, this often beats a straight withdrawal: it preserves the year’s IRA space, and the money can then be converted back to a Roth through the backdoor route.

Miss both deadlines and the 6% penalty applies for that year. You can still remove the excess later (without earnings) to stop the penalty from repeating, or absorb it by contributing less in a future year when you have room.¹¹ Catching the mistake early saves real money.

1
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
2
eCFR. 26 CFR 1.408A-3 – Contributions to Roth IRAs
3
Office of the Law Revision Counsel. 26 U.S.C. 408A – Roth IRAs
4
Internal Revenue Service. Retirement Topics – IRA Contribution Limits
5
Internal Revenue Service. Payroll Deduction IRA
6
Internal Revenue Service. About Form 5498, IRA Contribution Information (Info Copy Only)
7
Internal Revenue Service. Disaster Relief for Retirement Plans and IRAs
8
Internal Revenue Service. Publication 590-A (2025), Contributions to Individual Retirement Arrangements
9
Internal Revenue Service. 2025 Instructions for Form 8606
10
Internal Revenue Service. Retirement Plans FAQs Regarding IRAs
11
Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities