The error message "Using the maximum allowable contribution, {name} can defer a maximum of $19,500 to a 401(k) plan." shows up when 20,500 is entered in the Elective Deferrals field.
Field location in the desktop software = Business > Business Income & Expense > Self-employed Retirement > Individual 401(k) > Elective Deferrals
Turbo Tax Home and Business version = 022.000.0343
