A useful opening can describe the debt and the difficulty behind it. Missing paperwork can be named honestly while you ask what help is relevant.
Say what you need understood
Explain whether the immediate issue is paying, reading an IRS letter or clarifying account information. Mention the affected period if known and keep the source nearby where practical. An incomplete explanation is not a reason to fill gaps from memory. Ask what assistance would address this point before deciding that one process fits or spending time assembling every older financial record without a clear purpose.
Make the next discussion practical
Understand what further work covers and what it costs. Ask why additional information is needed and how sensitive records should be provided. A simple note of the current question and proposed next task can keep follow-up useful. Preserve actual IRS instructions for planned account action, distinguishing them from your own reminder. The opening call can clarify assistance while specific requirements still need consideration for the particular account.