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MAKTUB Assessoria Contábil e Fiscal
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Invoice issuing

Issue your invoices in a few clicks, with the taxes already calculated.

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What's included

  • Issuing of NFS-e, NF-e and NFC-e
  • Automatic calculation of withholdings
  • Invoices fed straight into your accounting
  • Full history available in the portal

Need something that is not on the list? We quote it separately and only proceed after your written approval — no surprises on the invoice.

An invoice is not a formality: it evidences the transaction, sets the tax base and, in practice, is what allows you to be paid by a company. Issuing it wrongly creates rework, overpaid tax and sometimes an invoice cancelled past its window — which cannot be cancelled at all.

The invoicing tool handles the mechanical part: calculation, withholding, transmission and storage. And because it is connected to the accounts, it removes the end-of-month spreadsheet shuttle — the invoice you issue arrives already booked.

The three most common types: **NFS-e** for services, municipal; **NF-e** for goods between businesses, state-level; and **NFC-e** for sales to end consumers.

  1. 1. Enablement

    Before the first invoice you need the registration — municipal for services, state for goods — and a digital certificate. The issuer details, series and numbering are configured as well.

  2. 2. Tax setup per service or product

    Each item gets its service code or NCM, the ISS or ICMS rate and the withholding rules. Done once, it removes the decision from every single issue — which is where errors live.

  3. 3. Issuing

    You fill in the customer, the item and the amount; tax and withholding come out calculated. The invoice is transmitted and the receipt is ready to send.

  4. 4. Withholdings

    Services provided to a company usually carry ISS withholding and, depending on the case, IR, CSLL, PIS and COFINS. Getting withholding wrong means being paid less or owing later — and it is the point that raises the most questions.

  5. 5. Integration with the accounts

    Issued invoices reach the bookkeeping without being resent. Less spreadsheet, fewer forgotten invoices, and a tax calculation that matches what was actually issued.

O que você precisa ter em mãos

  • A valid digital certificate (e-CNPJ)
  • Municipal and/or state registration, according to the activity
  • A list of the services or products you sell
  • Customer details, for the client register

Perguntas frequentes

Am I obliged to issue invoices?
For companies, yes, whenever there is a transaction. For end consumers the rule varies by municipality and state, but the invoice is the proof of revenue — and revenue without an invoice is concealment, with everything that follows from it.
I made a mistake on an invoice. Can it be cancelled?
It can, within a window that varies by municipality and state and is usually short. Past that window, the route is a correction letter — which only fixes certain kinds of error — or an adjustment invoice. Which is why it pays to check before transmitting.
Do I need a digital certificate to issue?
In most cases yes, and it is the requirement that most often delays a newly registered company's first invoice. Some municipalities accept a login and password for NFS-e, but the certificate ends up being necessary for other obligations anyway.
Does a MEI issue invoices too?
Yes. For business customers it is compulsory; for individuals it is optional in most cases. Keeping invoices current makes leaving MEI much easier later, because revenue is already evidenced month by month.

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