Bank statement redaction takes personal data out of a monthly account record. UK GDPR and the DPA 2018 govern how a bank may share that information, with the ICO as regulator. anonym.plus marks each item on your own machine, so the figures stay readable while the protected fields drop out.
When this applies
A statement lists the holder, the sort code and account, and every line of activity. You must hide that data before it reaches an auditor in Manchester.
How anonym.plus handles it
- Open the file in anonym.plus on your workstation.
- Local OCR reads any scanned or imaged pages.
- It flags names, account details, and balances.
- Confirm each flag and keep the dates you must show.
- Apply Mask to leave only the last four digits.
- Save the clean copy. It never leaves your machine.
What you need to provide
- The monthly record (PDF, scan, or CSV).
- An operator: Replace, Redact, or Mask.
- Optional batch for many statements at once.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Financial | UK_SORT_CODE | 12-34-56 → [SORT_CODE] |
| Financial | UK_BANK_NUMBER | 12-34-56 12345678 → ****5678 |
| Names | PERSON | Carla Davies → [HOLDER] |
| Identifiers | UK_NINO | QQ 12 34 56 C → [NINO] |
| Money | MONEY | balance £14,209.55 → [AMOUNT] |
| Dates | DATE_TIME | statement 04/2026 → [DATE] |
Compliance achieved
- Supports the data-minimisation duty in UK GDPR & DPA 2018.
- Runs offline, so holder details never reach a server or the ICO's concern.
- Working copies are kept safe with AES-256-GCM.
- Covers 340+ PII types across the whole document.
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Limitations & cautions
Masking the account number leaves the last four digits, which can still help re-identify a holder when paired with a name. Decide per use whether full removal is safer than a partial mask.
Frequently asked questions
What personal data does the tool target on a statement?
It flags the holder name, sort code, account number, balance, and contact lines — the very fields UK GDPR asks you to minimise before sharing.
Can I process a whole month of statements at once?
Yes. Batch mode handles up to 20 files in a single local run, with OCR for any scanned pages.
Does the record get uploaded for processing?
No. The app is a 100% offline desktop tool. Nothing leaves your device, so the statement stays private.