Issue and cancel
Issue NFS-e through the national issuer and cancel authorized invoices with reason and justification — no government portal.
System
MK3 NFS-e Desktop
Desktop issuer for Brazilian electronic service invoices (NFS-e) using the national government standard. Register providers, clients and services, issue the invoice and download the DANFSe without filling the government portal by hand.
Benefits
Substitution
Replace an authorized invoice with a corrected one, with reason and traceability to the original note.
Multiple operators
Admin, operator and read-only — each user with the right role; read-only users cannot issue or change records.
App screens
Real MK3 NFS-e Desktop UI — issue, review and substitute invoices.
Pick the provider and client, search the national service code, check the amount and tax rate, then click Issue invoice.
List and filter by provider and status, download the PDF, cancel or substitute authorized invoices.
Guided substitution flow: enter reason and justification; the app issues the new DPS and cancels the original.
Windows 10 or 11 (64-bit). Install once; later versions apply automatically when you open the app.
The trial starts on the first login and lasts 15 days. After that the app requires a MK3 license.
Ongoing use requires a Starter or Business license issued by MK3 Soluções Ltda.
Plans and pricing
Billed monthly by plan. The 15-day trial follows Starter limits.
Starter
R$ 59
per month
- 1 operator
- Up to 2 providers
- National NFS-e issuance
- Automatic updates
Business
R$ 189
per month
- Up to 5 operators
- Unlimited providers
- Built for accounting offices
- Automatic updates
Request the key at contato@mk3.tech. Upgrade from Starter to Business without reinstalling.
Automatic updates
After the first Setup install, the app checks this website on startup. If a new version exists, it downloads and reinstalls itself.