Quick answer
Prepare the main documents that prove what happened, who is involved, what deadline applies, and what outcome you want. If you want to understand voluntary disclosure, start with the notice or agreement, identity details, payment or income records, messages, official correspondence and a short timeline.
Key takeaways
- Prepare the main documents that prove what happened, who is involved, what deadline applies, and what outcome you want. If you want to understand voluntary disclosure, start with the notice or agreement, identity details, payment or income records, messages, official correspondence and a short timeline.

