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"Yes, you can do that by taking the difference between what the deductions will deduct and what you will need to pay to fulfill your tax obligations and enter that amount on line 4(c) of the W-4.\n \n\n\n\t \n \n\n\n\tWhat they did was reduce the value of the deductions. Under the old system, if you had a deduction of 1 it would withhold,  say, $800, and a zero would withhold $1,000. (These are made up numbers just for an example. ) The new system withholds ,say, $500 for a 1 and $800 for a zero.\n \n\n\n\t \n \n\n\n\tEven with the change, if you are claiming zero (or whatever) and it works for you, you are neither significantly overpaying or underpayment, that's great! These changes won't affect every single tax situation.\n \n\n\n\t \n \n\n\n\tBut for some people,  the withholding amount with deduction zero isn't enough. Since you can't go lower than zero, you then have to calculate the additional amount needed to fulfill the tax obligation and place that amount on line 4(c) of the W-4. You, can use the IRS worksheet to do this, or you can just write in any number that you think works for you, even $0.\n \n\n\n\t \n \n\n\n\tEveryone's tax situation is different, we had a job change, multiple jobs and income streams, and changed from itemizing to using the standard deduction, pretty much all at once. If you haven't had that much change in your tax situation, all of this discussion may be a non-issue for you. \n \n"
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