The guides explain subjects, not account determinations
Year-specific examples help describe common tax-debt concerns but do not inspect an individual return or account. Use the relevant correspondence and current official requirements when considering a process. A diagram of connected years is not evidence that any balance has been corrected. The reading materials are general information for discussing services and the preparation a task may require.
Separate proposed work from completed action
Service responsibilities, covered periods, and terms need explanation before authorization. Reading, printing, or calling does not itself submit an IRS request or prove satisfaction of a notice. Keep the actual versions and confirmations of later actions where applicable. External links lead to their respective services and conditions. The account facts remain necessary when moving from a guide question to individual work.