Sort by obligation rather than envelope
Create a folder for each taxpayer or entity, then separate years and tax types inside it. Keep federal and state records distinct. Copy the exact name and period from each notice into an index. A document addressed to an owner may concern a different obligation from one addressed to a company. Flag uncertain relationships for review instead of combining balances simply because the same person receives the mail.
Preserve the trail behind each number
Link a return entry or account figure to its supporting statement, ledger or payment confirmation. Keep transfers between personal and business accounts clearly labeled in your working notes. The IRS recordkeeping guidance emphasizes support for reported income and expenses. Your organizational system can be simple, but it should let a reviewer trace amounts and identify missing evidence. Store originals safely and use copies for the initial review packet.
Write an issue list for the reviewer
For each folder, state whether the task appears to involve a missing filing, a proposed change, payment reconciliation or collection. Add the nearest response date. Ask a provider which matters its engagement includes and which need separate expertise or authorization. A single service package should not be assumed to resolve every federal, state, owner and business issue. Retain a written list of responsibilities and review it when the scope changes.
Your action checklist
Use the checks to plan. Do not send sensitive documents through this website.
Questions people ask
Should I add every notice into one total?
First check whether notices repeat the same balance or concern separate accounts. A simple sum can overstate the issue or hide different obligations.
Does one authorization cover all entities and years?
Do not assume it does. Ask the provider to identify the taxpayer, matters and periods covered by the authorization and engagement.
Official resources
Agency rules and your facts control. Review current guidance before acting.