Write the instruction as a task with a source
Read the full notice and locate its identifying number, affected period, requested action, and stated deadline. Preserve the original wording beside a plain-language working note. If the letter refers to a return entry or transaction, identify that record rather than drafting a response from memory. Record any question about authenticity or the instruction through the relevant official resource before assuming a copied document is sufficient.
Close the loop with submission evidence
When an appropriate response is prepared, retain the final version, supporting record index, destination, and evidence of submission. A document drafted, a document sent, and an answer received are different stages. Keep subsequent letters beside the response they concern. If a professional task is proposed, ask who reviews, sends, and monitors it, and what authorization is necessary. The workflow does not extend a deadline or establish that the authority accepted an explanation; the actual notice and applicable process govern those matters.