How do I correct an error made on my 2018 federal and state tax return?

[gcknowles]

I discovered I entered an incorrect amount in my charitable contributions last year for our tax return. I need to correct that.

[Critter]

Select a tax year for specific amending instructions.

Keep in mind: You have 3 years from the date you filed your return (or 2 years after you paid the tax due, whichever is later) to file an amended return, which means you don't have to get it done by the April 15 filing deadline.

• 2018
• 2017
• 2016
• 2015