I'm not sure... you might be all right with their Standard version. You can always try the lower end and then upgrade if necessary.
I remember a few years ago when my ex and I were going through a divorce. He initially refused to file jointly, so I estimated my taxes married filing singly. I didn't know until starting my taxes that my entire $5,000 of Roth IRA contributions were considered overpayments for singly. I finally convinced him to file jointly so that I didn't have to pay penalties on the "excess" contributions. I think I discovered that information just by entering the amount contributed and the filing status.
Also, smart on you for realizing early! I remember looking at the penalties and you'd be penalized for every tax year the excess remained in your account... so if you didn't realize you overpaid $200 one year and continued to max it out each year, you'd lose a lot on that mistake over time!
