ZAG1265
Returning Member

W4 Withholding 2025 MFJ

Just got married, filling our W4 as MFJ, no dependents.

 

I used the IRS Tax Estimator, and it has me putting $1500 in deductions (4b) and $350 each pay period under additional withholdings (4c).

 

Two questions:

1. Why do we have to withhold additional income for each pay period?


2. The IRS has me putting $350 of extra withholding under my W4 and has my spouse putting $0 under extra withholding (4c). Are we allowed to split the additional withholding in half for each W4 ($175 for each of our W4s)?