FREEPROCESSED LOCALLY
Your data stays in your browser.
Peru RUC check digit
Enter an 11-digit RUC. The tool checks common type prefixes (10/15/17/20) and the weighted check digit. A pass means the number is well-formed — not that SUNAT shows the taxpayer as active.
How to use
- Paste 11 digits (spaces/hyphens ignored).
- Read checksum result.
- Confirm status in SUNAT if you need legal certainty.
What the tool does
Validates RUC length, type prefix, and check digit on-device.
What the tool does not do
Does not query SUNAT or prove tax registration.
Tips
- Natural persons often start with 10; companies with 20.
- Copy from the Constancia before trusting a typed RUC.
FAQ
- SUNAT lookup?
- No — local checksum only.
- Is data uploaded?
- No.
- Is it free?
- Yes.
More on Spain Eats ↗
Related tools
- Mexico net salary estimate
- Mexico RFC format checker
- Mexico VAT (IVA 16%) calculator
- Colombia net salary estimate
- Colombia RUT / NIT checker
- Argentina net salary estimate
- Argentina CUIT validator
- Chile RUT validator
- Colombia VAT (IVA 19%) calculator
- Chile net salary estimate
- Peru net salary estimate
- Argentina VAT (IVA 21%) calculator
- Colombia retefuente helper