If you do a payment plan, they will tack on the Obamacare penalties that you don't technically have to pay into the payment plan and they do not make this clear. Now you're stuck paying for that crap that you literally do not have any legal obligation to pay at all (according to law and Congress). All the IRS can do is just keep a refund from you, but in this case they also add it to your payment plan. Very deceptive. IRS should be scuttled and closed.