Yes. There is no age limit on regular Roth IRA contributions, so you can keep contributing after age 70½ as long as you have taxable compensation for the year.
Roth IRAs never had an age cutoff. The old age-70½ rule applied only to traditional IRAs, and it ended with the 2020 tax year; for 2020 and later, the IRS says there is no age limit on regular contributions to either traditional or Roth IRAs. The amount you can put in is still capped. For 2026, combined contributions to all of your traditional and Roth IRAs cannot exceed $7,500, or $8,600 if you are 50 or older, or your taxable compensation if that is less. Roth contributions can also be limited based on your filing status and income. If you file jointly and have no compensation yourself, you may still contribute based on your spouse’s compensation under the spousal IRA rules. Rollover contributions are not subject to the annual limit and can be made at any age.
Source: IRS, Retirement Topics: IRA Contribution Limits
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