Tax workpaper redaction is the removal of return information from a preparation file protected under IRC §6103 (26 U.S.C.). That section guards a taxpayer's identity and figures from disclosure. anonym.plus marks each identifier on your device, so the calc trail stays while protected data goes.
When this applies
A prep workpaper carries the client's SSN, prior-year figures, and source documents. You strip that protected information before a reviewer opens it.
How anonym.plus handles it
- Open the prep file in anonym.plus on your device.
- Local OCR reads scanned source documents.
- The tool flags the SSN, name, and address.
- Keep the calc steps and reconciling notes.
- Mask the SSN or swap it for a label.
- Save the clean file locally.
What you need to provide
- The prep file (PDF, XLSX, DOCX, scan).
- An operator: Mask keeps only the last four of an SSN.
- Optional batch for a folder of source documents.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Identifiers | US_SSN | 455-21-7763 → XXX-XX-7763 |
| Identifiers | US_ITIN | client ITIN → [ITIN] |
| Names | PERSON | client Mae Orr → [TAXPAYER] |
| Location | LOCATION | client address → [ADDRESS] |
| Money | MONEY | AGI $112,400 → [AMOUNT] |
| Dates | DATE_TIME | prior yr 2025 → [YEAR] |
Compliance achieved
- Shields return information protected by IRC §6103.
- Masks the SSN and ITIN that anchor a client's identity.
- Offline work keeps protected data off any server.
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Limitations & cautions
Section 6103 protects return information broadly. A unique prior-year figure can still hint at a client. The tool flags named items; scan the calc notes before you share.
Frequently asked questions
What counts as return information in a prep file?
The client's identity, the figures, and IRS-sourced data. anonym.plus flags those identifiers so you can apply §6103.
Can I keep the calculation steps?
Yes. Allow-list the calc columns. Only personal identifiers, not the logic, are marked.
Is the prep file uploaded?
No. The app is fully offline, so the client's data stays on your device.