Identify the sender and requested action
Record the agency, notice number, tax year, date, and response deadline. Determine whether the letter describes a proposed change, requests information, reports a balance, or addresses processing. Verify unfamiliar correspondence through the agency’s official website. Avoid using search advertisements or an unsolicited message as the only basis for deciding where to send sensitive records.
Compare it with your own file
Locate the return, related income statement, and payment confirmation for the same year. Write down the exact line or transaction that differs. A practical dispute explanation identifies the issue, states why you disagree, and points to supporting copies. Keep unrelated questions on a separate sheet so the response stays focused on what the agency actually requested.
Preserve the response trail
Follow the instructions and destination in the notice. Retain the response, attachments, and submission proof, then log later correspondence. If a deadline is close, tell any professional you consult immediately. Ask whether the issue also affects the other agency’s return; a federal correction can prompt a separate California review rather than automatically completing every required state step.
Your action checklist
Use the checks to plan. Do not send sensitive documents through this website.
Questions people ask
Should I answer every notice?
Follow the letter’s instructions. Some notices require no reply if you agree, while others require action. The agency’s notice-specific guidance helps identify which situation applies.
Can I send the same response to both agencies?
Prepare each response for its own notice and instructions. Keep the facts consistent, but confirm whether a separate federal or California filing or explanation is required.
Official resources
Agency rules and your facts control. Review current guidance before acting.