Thanks @Katherine S 63
I'm wondering how does it work for hourly salaried job's W4?
What happens if we enter additional withholding of say $500 per pay period. But get only $400 as salary for a pay period because we took a vacation during that pay period.
How much will be withheld in that pay check?, Will it go negative and next pay check will have more than $500 withholding?
