Where do I enter clergy housing expenses?

To enter clergy housing allowance, refer to the TurboTax Help article How do I enter a parsonage or housing allowance reported on a W-2?

IF CLERGY HOUSING ALLOWANCE IS IN W-2 BOX 14 -

1. IF YOUR ACCOUNTANT PUTS YOUR HOUSING ALLOWANCE IN box 14 on your W2, put it in box 14 on TurboTax, continue.
2. LET'S CHECK FOR UNCOMMON SITUATIONS: Check Religious Employment, continue
3. LET'S DIG INTO YOUR RELIGIOUS EMPLOYMENT: Check Clergy, continue
4. OK, TELL US ABOUT OUR CLERGY HOUSING: Parsonage or housing allowance = 0 (put nothing or zero). Do fill in your qualifying expenses, continue.
5. NOW TELL US ABOUT YOUR CLEARGY SELF-EMPLOYMENT TAXES: Pay self-employment tax on my housing allowance.
6. You'll know you did this right if your housing allowances shows up right on your SE.

IF CLERGY HOUSING ALLOWANCE IS **NOT** IN W-2 BOX 14 -

1. IF YOUR ACCOUNTANT OMITS YOUR HOUSING ALLOWANCE FROM box 14 on your W2 but GIVES YOU A LETTER INSTEAD, leave that box blank, Continue
2. LET'S CHECK FOR UNCOMMON SITUATIONS: Check Religious Employment, continue
3. LET'S DIG INTO YOUR RELIGIOUS EMPLOYMENT: Check Clergy, continue
4. OK, TELL US ABOUT OUR CLERGY HOUSING: Parsonage or housing allowance = put in your housing allowance here. Do fill in your qualifying expenses, continue.
5. NOW TELL US ABOUT YOUR CLEARGY SELF-EMPLOYMENT TAXES: Pay self-employment tax on my housing allowance.
6. You'll know you did this right if your housing allowances shows up right on your SE.

DO NOT DO THIS:
1. Search for other reportable income and select the Jump to link.
2. Answer No to Did you receive any other wages? and select Continue.
3. Scroll to the bottom of the Let's Work on Any Miscellaneous Income screen and select Start next to Other reportable income.
4. Answer Yes, and on the Any Other Taxable Income screen, type Clergy Housing Allowance in the description and enter it as a negative number (precede it with a minus sign) -- YOUR RETURN WILL LOOK VERY WRONG WITH NEGATIVE NUMBERS ON Schedule 1 box Z, and the SE box 2. It will also mess up your STATE.

@Opus 17 

My husband is a Prison Chaplain employed by the State. They gave him a letter to elect whether to have them deduct the allowance, BUT he did not complete it and turn it in to them; S.S. and Medicare were taken out of his gross pay and there's no allowance shown on his W-2. Everything I've read suggests that in order to take this allowance the amount has to have been determined prior to being paid. However, he is being told that we can still claim this allowance. Do you know if this is true, and if so how? Do I put the amount in Other Deductions?