Can I still make a 2025 contribution to my employer 401k before the 4/15 deadline?

[MinhT1 · Accepted solution]

No.

Employer's 401(k) plans only accept contributions by salary deferrals and you cannot contribute for tax year 2025 after 12/31/2025.

[matt808]

Thank you for answering! If I rollover a previous employer Roth 401k to an IRA, can I contribute to that for 2025?

[DavidD66]

Yes, if you rollover a Designated Roth account from your previous employer to a Roth IRA you can make a 2025 contribution to that account if you qualify.  You will have to tell your IRA custodian that it is a 2025 contribution and must make it by April 15th, unless you file an extension.  You don't have to rollover the Designated Roth Account in order to contribute to a Roth IRA.   

[dmertz]

Ordinary Roth IRA contributions must be made by April 15, no extensions.