So I messed around with 2 websites this year. Tax Slayer and HR Block. Got the same return for Fed on both, but for some reason owed the state an astronomical amount using HR Block, as opposed to a much smaller (still annoying) figure on Tax Slayer's system. I put in all the same info, although HR Block offered State taxes to be filed individually as opposed to jointly, even if you filed jointly for Fed (we did). I was a bit perplexed at the amount of state tax we owed using HR Block, so I went ahead and filed using Tax Slayer. Now that I've filed, I am worried that maybe HR Block was right and I do owe what they say. I wasn't thinking about it at the time, but we used HR Block last year, so they had all the info from 2019 whereas TS did not. Not sure if the difference lies therein somewhere, but has anybody else experienced anything similar?