# NFE-531

Source: https://xmlvalid.com/rules/NFE-531

> Rejeição: Total da BC ICMS difere do somatório dos itens (vBC …, itens …).

- Level: error
- Rule sets: SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
- Context: `nfe:infNFe/nfe:total`
- Test: `br:dec($t/nfe:vBC) = br:sum($icms/nfe:vBC)`

In English: The ICMS base total (ICMSTot/vBC) is not the sum of the items' vBC.

Validate a document against these rules: https://xmlvalid.com/validate