How Much Should You Put in a Roth IRA Monthly? (2026 Math)

"How much should I put in?" is the most-asked Roth IRA question, and the honest answer is a math problem plus a budget question. Here is both, with real numbers.

The 2026 Max, Broken Into Paychecks

• Monthly: $625 (under 50) - $716.67 (50+)
• Biweekly paycheck: $288.46 (under 50)
• Weekly: $144.23 (under 50)
• Daily coffee terms: about $20.55 a day

What Each Monthly Amount Becomes

Assuming an 8% average annual return (roughly the long-run stock market average after inflation-adjusted dividends are reinvested), here is the tax-free wealth each level builds:

Every dollar of that is withdrawable tax-free after 59 1/2. In a regular brokerage account, the 30-year numbers would lose roughly 15-25% to taxes along the way.

A Simple Priority Order for Your Dollars

1. 401k up to the employer match - it is an instant 50-100% return. (Why the match comes first)
2. $1,000 starter emergency fund - so a car repair never forces an early withdrawal.
3. Roth IRA up to $625/month - the tax-free bucket.
4. Back to the 401k or a brokerage account - once the Roth is maxed.

Can't Do $625? Do This Instead

Start with any amount and add a "1% raise rule": every time your income rises, move half the raise into the Roth. A $150/month start with $50/month added each year crosses $500/month by year 8 without ever feeling it. The account itself takes 15 minutes to open - here is the step-by-step - and what you buy inside it matters as much as the amount: Best Roth IRA Investments for Beginners.

New to the account entirely? Start with the complete beginner guide, then avoid the 8 most expensive mistakes.

Roth IRA FAQ

How much do I need per month to max a Roth IRA in 2026?

$625 per month maxes the $7,500 annual limit if you are under 50. If you are 50 or older, $716.67 per month reaches the $8,600 limit.

Is $100 a month enough for a Roth IRA?

Yes. At an 8% average return, $100 a month grows to roughly $59,000 in 20 years and $149,000 in 30 years - completely tax-free. Starting small beats not starting.

Should I contribute monthly or once a year?

Monthly automatic contributions are easier to budget and buy in at many prices (dollar-cost averaging). A January lump sum has a slight mathematical edge, but only if you actually do it.

What percent of income should go to my Roth IRA?

A common guideline is 10-15% of gross income toward retirement overall. Grab any 401k match first, then point the rest at your Roth IRA until it is maxed.

What if I cannot afford anything some months?

Nothing bad happens - there is no required contribution. You have until tax day (mid-April 2027) to add money that counts for 2026.

Educational content, not personalized financial advice. Projections are illustrations at an assumed 8% average annual return - markets vary year to year.