Joyce & Sarah: my DS's taxes were done by me and TurboTax.  The problem was because he cashed out some investments from his dad's life insurance proceeds.  I did not put them in as income because I never got his 1099s.  I asked him and he said the money was gone and he didn't get any year end paperwork.  I shouldn't have believed him.  So he owes just a bit over $300 and the letter he got in December said he only had to pay that plus $8 interest if he paid it by January 12th.  The genius didn't tell me about it until January 12th, and only because it came up due to figuring this year's taxes and a possible refund.  I looked at the IRS's website and the payment plan costs $105 to set up, which seems like a lot to me for such a small amount.  He is still unemployed, so I am going to pay the bill because even if he gets a delay due to his situation, that $300 will be huge before he gets any money.  Yes, I could hope he gets a refund enough to cover it, but we can't file til at least mid-February, so there will be even more penalties and interest.

When I was married and very young, my then-dh made a similar error and when the IRS caught it two years after the fact, the $1400 we owed had turned into $3800.  I don't want to go down that road.  He is already delinquent on student loans and stressed out enough (which I bear the brunt of).  I cannot help with that and wouldn't anyway, but I feel that the tax issue is partially my fault, so I will pay them and he will owe me.