Retirement 401k

[21norman02]

Can I backdate into 2020  additional contributions to my employer sponsored 401K account?  I did not have them deduct the limit for the year, but don't know if they will allow me to send money to add to my 401k for 2020.  Is the decision up to the individual company?  Is there a time limit other than 4-15-21?

Thanks.

[SteamTrain · Accepted solution]

For an employer sponsored 401k....31 December is the last day possible to have a contribution made thru payroll, or any other means......

So it's not exactly like an IRA, where you can contribute for the prior year in the first couple months of the next year. 

[21norman02]

Thanks...that's the answer I needed.