When reporting my HSA contributions on line 12... do I use line 12a or 12 b. One is a DD code and one is a W code

[tiautrera]

Explain line 12 of a w2 form

[NCperson · Accepted solution]

as long as you entered your W-2 with box 12 completed, do NOT enter additional HSA contributions when asked later in the program

When TT is asking about HSA contributions, it's asking about money you sent directly to the HSA, not what was already withheld from your paycheck and listed on this W-2.  This is a common error and ends up duplicating the money contributed to the HSA. 

Code W is the withholdings from your paycheck for HSA monies. 

Code DD is not used on your tax return anywhere, but represents what your medical insurance cost your employer to provide to you. 

@tiautrera