Thank you for the quick response! From using generic tax calculators, and finding out what the percentages are for the penalty, and my wages not being an extreme amount since I only worked there half the year..It doesn’t seem like the penalty will be alot @5% per month/25% max. What about the interest that I keep reading about? Underpayment interest on total tax due. If im understand that part correctly it is….unpaid tax multiplied by # of days delinquent multiplied by daily interest rate of 0.000192. In my case, I paid $3,330 in MD taxes. I should have paid $1,332 to PA. My federal tax doesn’t seem like it’s off by much, if any. No local tax was withheld either from the MD job.
