SII — Servicio de Impuestos Internos
The SII is Chile's tax authority. Connecting it lets your agent read your own tax records directly from sii.cl — your purchase and sales registry (RCV), F29 (IVA) information, and fee receipts (boletas de honorarios). Think of it as giving your agent the same access you have when you log in to the SII, so it can pull the numbers for you instead of you exporting them by hand.
Instead of following these steps manually, use the AI Credential Assistant — say "connect the SII" and it walks you through it, in Spanish, tailored to your account.
What you can do with it
- Read your Registro de Compras y Ventas (RCV) for any period
- Pull F29 (IVA) information and estimates
- List boletas de honorarios issued and received
- Look up any RUT's Situación Tributaria (this one is public — no credential needed)
Before you start
- Your sii.cl sign-in: the company RUT and its Clave Tributaria
- Access as the legal representative, or as an authorized user with permission over the records you need
Nirvai stores the Clave Tributaria encrypted and never shows it back. The agent never sees or types it — you enter it into the connection card yourself.
Connect it
Step 1: Have your RUT and Clave Tributaria ready
Your RUT with hyphen and check digit (e.g. 76.543.210-K), and the Clave Tributaria you use to log in to sii.cl.
If you don't remember the clave, use "¿Olvidó su clave?" on the sii.cl login screen — the SII lets you recover it with your RUT and verification data (or with Clave Única).
Step 2 (optional): Use an authorized user instead of the legal representative
If you'd rather not use the legal representative's password, in sii.cl go to Servicios online → Administración de usuarios, add a user, and grant it permission over the records you need (for example, the Registro de Compras y Ventas). Then connect that RUT and its clave.
Step 3: Enter them in Nirvai and connect
What you'll need to enter
| Field | What it is |
|---|---|
| RUT | The company's tax ID, with hyphen and check digit |
| Clave Tributaria | Your sii.cl password (of the legal representative or an authorized user) |
Troubleshooting
| Problem | Fix |
|---|---|
| "Wrong password" right after changing it on sii.cl | Update the credential here with the new password — the old one stops working |
| No data for a period | The SII publishes the purchase registry with a delay; check the previous period |
| Intermittent errors overnight | The SII has nightly maintenance windows — retry later |
| "User without permissions" | If using an authorized user, grant it permission over the relevant registry in Administración de usuarios |
Next steps
Use the AI Tool Creator to add the SII tools to an agent — the purchase/sales registry, F29, and fee-receipt lookups are all built in.