https://ttlc.intuit.com/questions/4698409-excess-401-k-contribution-preventing-e-file
At the bottom of this post, it says “Solution: Unfortunately at this time, customer with an excess contribution will need to print and mail, despite following the Steps to Take to Remove an Excess Salary Deferral as listed above.” I was surprised to see this because I was able to efile last year with the 401k over the max.
