I received IRS letter, informing me my 2018 tax return was changed due to Excess State Disability Insurance, but balance is 0$. IRS recommends I update my records. How?

[Bsch4477]

See this site to apply for your credit.

https://webapp.ftb.ca.gov/DirectfileCF/Help/Help52.aspx

[rovepe1982]

Thanks. This explains why I got the letter, but not how I claim the credit, nor if I need to amend my tax return for 2018? 

The excess amount is so small (7$) that I really don't care for the credit. 

[Bsch4477]

You do not have to amend your return.