On demand
For getting started, or a low volume.
R$ 0,39 per invoice
Plans
You pay per authorized invoice.
Homologation never spends balance, and every new account starts with R$ 50 in credit. A rejected invoice is not charged.
Starter
For a product with steady traffic.
R$ 49/month
150 invoices included
R$ 0,29 per invoice
Growth
For a software house with many clients.
R$ 149/month
600 invoices included
R$ 0,22 per invoice
Scale
For high, predictable volume.
R$ 399/month
2000 invoices included
R$ 0,16 per invoice
Start free
Prices in Brazilian reais, no lock-in. Cancel any time.
FAQ
The questions that come up before signing.
Straight answers, so you can start using Stackin with confidence.
R$ 1.00 of balance. It does not buy a fixed number of invoices — how far it goes depends on your plan's per-invoice price. On demand, R$ 50 in credit is around 128 invoices.
No. Only an authorized document spends balance. Fixing the data and sending it again through reissue does not charge for the attempt that failed.
Nothing. Every issuance outside production records a zero-value transaction — you can exercise the whole integration without spending a credit or a quota.
No. Cancelling, consulting, downloading the PDF, filing a correction letter, invalidating numbering and answering a received invoice are all free.
Any time, with no lock-in. While volume is still settling, on demand usually costs less than a plan with invoices left over.