# NFE-1091

Source: https://xmlvalid.com/rules/NFE-1091

> Rejeição: Total de CBS difere da soma dos itens (vCBS …, 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: `not($ibs/nfe:gCBS) or br:dec($ibs/nfe:gCBS/nfe:vCBS) = br:sum($g/nfe:gCBS/nfe:vCBS)`

In English: The CBS total (vCBS) is not the sum of the items'.

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