How Much Is the IRS Going to Ask Me to Pay Per Month? So there's a calculation and there's a formula the IRS uses the IRS is a lot like the post office tip procedures and they have formulas and they have ways that they do things so with respect to how much they're gonna ask you to pay what they look at is assuming that you don't have enough to pay them in full like you just don't have the cash sitting in your bank account then they'll look at a payment plan and the payment plan is based on how much income you're earning and what the IRS considers to be ordinary and necessary expenses so if you pull out an IRS financial statement we've a lot of 4:33 a for an IRS Form 433 ABS you can look at the expenses and the expenses are things like food and clothing and transportation cost and a couple of other different things so the IRS is looking at your income they're subtracting out what they consider to be necessary expenses not luxuries and then they come up with a residual and if you run that calculation and you get to your residual then you'll understand how much they're going to request for me keep in mind the residual that you're showing based on that limited analysis is what the government's gonna work and not to say that you're gonna have to pay that amount but it's at least it's a good starting point for figuring out how much the IRS is going to ask you for at the outset of this you.