topic No.&nbsp; You cannot make a 2016 401(k) contribution after Dec... in Retirement tax questions https://ttlc.intuit.com/community/retirement/discussion/no-you-cannot-make-a-2016-401-k-contribution-after-dec/01/427559#M38924 <P>No.&nbsp; You cannot make a 2016 401(k) contribution after Dec 31, 2016.&nbsp; That would be done through your employer and reported on your W-2.<BR /></P> Tue, 04 Jun 2019 21:34:04 GMT macuser_22 2019-06-04T21:34:04Z My wife and I each contributed less than 18,000 to our 2016 401k accounts. We want to make contributions to bring us up to that 18k amount. Won't that lower our taxable income for 2016? and, if so, how do I enter that in turbo tax? https://ttlc.intuit.com/community/retirement/discussion/my-wife-and-i-each-contributed-less-than-18-000-to-our-2016-401k-accounts-we-want-to-make/01/427555#M38922 Thank you. Tue, 04 Jun 2019 21:34:02 GMT https://ttlc.intuit.com/community/retirement/discussion/my-wife-and-i-each-contributed-less-than-18-000-to-our-2016-401k-accounts-we-want-to-make/01/427555#M38922 helloryan 2019-06-04T21:34:02Z No.  You cannot make a 2016 401(k) contribution after Dec... https://ttlc.intuit.com/community/retirement/discussion/no-you-cannot-make-a-2016-401-k-contribution-after-dec/01/427559#M38924 <P>No.&nbsp; You cannot make a 2016 401(k) contribution after Dec 31, 2016.&nbsp; That would be done through your employer and reported on your W-2.<BR /></P> Tue, 04 Jun 2019 21:34:04 GMT https://ttlc.intuit.com/community/retirement/discussion/no-you-cannot-make-a-2016-401-k-contribution-after-dec/01/427559#M38924 macuser_22 2019-06-04T21:34:04Z