Get your taxes done using TurboTax

There are 3 steps. 

Enter the tax documents

Enter the adjustments onto the worksheet which populates the 8958 (Informational only, does not generate changes) 

Enter the same adjustments in the allocation screens for each income/tax/deduction.

(you may need to continue through the program to get to this screen or click continue under "Other Tax Situations") This will make the changes on the 1040.

The tax documents will be attached to the return as they are reported, no changes are made to them. 

The numbers on the 1040 are adjusted on each applicable line, not as one single adjustment. 

For example, if you subtract income, it will be a negative number on 1040 line 8 "Other Income" 

Adjustments to tax withholding is on 1040 line 25c. 

Every line on your 1040 that reports an adjustment should have a corresponding number on your spouses 1040.