Can this issue a real NF-e?

No. A legally valid Nota Fiscal Eletrônica must be issued through a certified emissor and authorised by SEFAZ with a digital certificate. This tool produces a complete draft of the required fields and tax breakdown so you can hand it off correctly — it does not transmit to SEFAZ.

What is CFOP and why does it matter?

CFOP (Código Fiscal de Operações e Prestações) is a four-digit code describing the nature of the operation — for example 5102 is a sale of merchandise within the same state. It drives how the operation is taxed and reported, so it must be correct on every line.

NCM (Nomenclatura Comum do Mercosul) is the eight-digit product classification used across Mercosur. Each item on an NF-e needs its NCM code because tax rates and rules are tied to the classification. The builder includes an NCM field per line item.

How is the nota total calculated?

ICMS, PIS, and COFINS are typically embedded in the product price, while IPI is added on top. So the builder computes each tax for visibility but adds only IPI to the product value to reach the total value of the nota, which mirrors common NF-e behaviour.

What identifiers must appear on an NF-e?

The issuer's CNPJ and inscrição estadual, the recipient's CNPJ (or CPF for individuals), the CFOP, the natureza da operação, and per-item NCM codes are all required. The builder includes a field for each so nothing is missed before issuance.

Brazilian Nota Fiscal Outline Builder

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A complete NF-e field outline before you hit the emissor

A Brazilian Nota Fiscal Eletrônica carries a dense set of mandatory fields — CNPJ, inscrição estadual, CFOP, NCM per item, and four separate taxes. This tool documents every one of them and computes the ICMS, IPI, PIS, and COFINS breakdown so you can hand a correct draft to a certified issuer or your accountant. It does not transmit to SEFAZ; it gets the data right before you do.

How it works

Each line item is quantity multiplied by unit value, summed into the product value (valor dos produtos). The builder then applies each tax rate to that base: ICMS, PIS, and COFINS are calculated for visibility but are embedded in the price, while IPI is added on top. The total value of the nota is therefore the product value plus IPI, which mirrors how a typical NF-e total is built. The CFOP and natureza da operação describe the operation, and each item carries its NCM classification. The output is a clean field-by-field outline you copy into a certified emissor or send to your accountant for the actual SEFAZ-authorised issuance.

Tips and example

Get the CFOP right first — it determines the tax treatment, and 5102 (sale of merchandise within the state) behaves very differently from an inter-state or return code. Confirm each NCM code, since ICMS and IPI rates depend on the product classification. A line of two units at R$ 1,500 gives a R$ 3,000 product value; with IPI at 0 percent the nota total stays R$ 3,000, while ICMS at 18 percent (R$ 540) sits embedded in the price. Remember this is a draft only — issue the binding NF-e through a certified emissor with your digital certificate.