Tips for taxpayers who need to file an amended tax return 

https://www.irs.gov/newsroom/tips-fo

https://accountinginstruction.info

The IRS will correct common errors during processing. However, there are certain situations in which a taxpayer may need to file an amended return to make a correction. Taxpayers can now file some amended electronically. Here are some tips for anyone who discovered they made a mistake or forgot to include something on their tax return.  Use the Interactive Tax Assistant. Taxpayers can use the Should I file an amended return? to help determine if they should file an amended tax return.