My spouse and I each have a job, and two dependents. I completed the 2024 TurboTax W-4 calculator. It gave me an amount for extra tax to be withheld in order to get our 2025 tax payment to $0. Is that amount of extra withholding what we put on just one of the W-4s, or both? Also, it doesn't seem to make a difference how much I put in the calculator for pre-tax deductions. Is that correct?
