When you talk about allowances, this makes me think that they are using an old W4. The new W4 does not use that terminology. I would suggest looking that this information:
How to fill out a W4 Instructions on how to fill out a W4
W4 calculator Use to help fill out a W4
Form W4 Actual W4. Line 4c is where you would add extra withholdings from each check.
Once you have filled out the W-4, then in a few months maybe use the links below to do a tax estimator. This will tell you how much you might owe after making the changes. You can do a tax estimator several times per year. If you have changed your withholdings mid year, you will want to see that you keep owing less as the year goes on.
IRS Tax estimator This is a tax estimator that will time out so enter and print findings all at one sitting.
Tax caster This is another tax estimator that will time out so enter and print findings all at one sitting.
For state withholdings, it is hard to find a tax estimator for each state but they will have a state withholdings form that you can fill out.
If you keep owing, then sometimes you leave everything the same on the W4 but add extra withholdings to 4c of the form. Let's say you owe $1000 next year after changing your W4s. Then take $1000/ (number of pay periods in the year) and put that amount on 4c. Ex. 1000/52 (paid every week)=19.2 or rounded up to $20 per pay period.
I hope you find this information useful.
Katie S
KatherineS63
