What box do I get the active duty pay deduction from on my w2. my state allows me to deduct active duty income

[MaryK4]

It would be the total amount in Box 1 of your W2.  

Everyone on active duty receives base pay. The amount depends on your rank, and how many years you've been in the military. 

[kavebb0]

My husband served active duty for PART of 2020. The other part, he served as a "reservist" or NOT active duty. How do I figure out the ACTIVE DUTY portion when working on the Active Duty Pay Deduction? 

[AmyC]

Check the LES, check orders, calendar, whatever you can you find to prove active duty. See How to read a Reserve and National Guard Leave and ... - DFAS Field 45 has the state taxable amount which may not include the active duty.