Deductions & credits

Yes, the 1099 G form for state refund. Last year I thought I Itemize my deductions, turbo tax stated that I done a Standard deduction at the end before I filed. It confused me and I went along to file it without thinking. The 1099 G State refund form made me think I need to add it to my tax return other either way Standard or itemized deductions. That wasn't the case only when I Itemize last years then I could add it to the prior years. It was a error for adding it this year. I didn't know. Stuff that involves taxes makes me think it needs added.

 

Is it better to amend and fix it this year so I won't get penalized and pay interest next year? I just want to know what could be better. I do get my Refund late in April and I might need to do an extension because of my mistake.