IRS and California Tax Notice Decoder

Most notices are generated automatically when something on a return doesn't match agency records, a payment is missing, or a deadline has passed.

Response windows count from the date printed on the notice, not the day it arrived. Some, like a Notice of Deficiency, can't be extended.

Many notices propose changes or ask for information. A response with the right documents can reduce or remove the amount shown.

An IRS change often leads to a California notice months later. California expects federal changes to be reported within six months.

Balance due notices move from reminders to intent to levy, then to wage or bank levies. Each step leaves fewer options.

Send copies, never originals. Keep proof of mailing or upload, and note every call with the date and the name of the person you spoke with.