If you're still working, you can contribute the full amount of your salary deferral to a Roth 401 (k), regardless of your age. Customers who are still working after age 70 and a half can generally continue to contribute to employer-sponsored 401 (k) accounts and SEP IRAs. In fact, employers must continue to make employer contributions to the SEP IRA of an employee over 70 and a half years old if they make similar contributions to the accounts of younger employees. People who are 50 or older at the end of the calendar year can make annual contributions to get up to speed.
Direct contributions to a traditional IRA are not allowed after the client turns 70 and a half years old, although the client can transfer funds from another type of retirement account to their traditional IRA. The rules for contributing to an IRA after 70 and a half years depend on whether the account is a traditional IRA, a Roth IRA, or an SEP IRA.