Start with the notice
Keep the complete notice and envelope, note the response date, and compare the tax year and issue with the filed return. Do not assume a notice is correct or incorrect before reviewing the account and the documents that support the original filing.
The IRS explains the common parts of a letter and available response methods in its notice and letter guidance. Never send original records unless an agency specifically requires them.
- Complete notice, including every page and any response form
- Return for the tax period involved and relevant prior or later returns
- Earlier correspondence, payment confirmations, and account transcripts if available
- Contracts, statements, receipts, payroll reports, or other evidence related to the issue














