Get your e-Tax 2.0 Cuenta Corriente through an API

What you can build on e-Tax 2.0

• Get Cuenta Corriente balances

  Build this

  Reads the Cuenta Corriente (tax account) for one RUC: the balance of each tax split into impuestos, intereses (interest), multas (fines) and recargo (surcharge).

  Takes

  RUC

  Returns

  Tax, impuestos, intereses, multas, recargo, total, créditos imputados (applied credits), grand total

• Get the transactions for one tax

  Build this

  Opens one tax in the Cuenta Corriente and reads its transactions: each debit or credit with its date and the number of the document behind it.

  Takes

  RUC, tax, from date (optional)

  Returns

  Date, document number, debit or credit, amount

• Verify a Paz y Salvo

  Build this

  Uses Certificaciones > Verificar autenticidad de paz y salvo to check whether a Paz y Salvo someone sent you is authentic, and reads what the result shows.

  Takes

  Paz y Salvo document number

  Returns

  Authentic or not, taxpayer name, RUC, issue date

• Request a Paz y Salvo

  Build this

  Opens Declaraciones juradas y documentos (sworn returns and documents), selects Solicitar Paz y Salvo, clicks Presentar and reads the document it produces.

  Takes

  RUC

  Returns

  Document number, taxpayer, RUC, issue date, result message

Automate e-Tax 2.0 with a workflow

A workflow runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

• Cuenta Corriente balances for every client RUC

  Build this

  Starts

  Every weekday at 7:00, America/Panama time

  Step 1

  For each RUC you list, get the Cuenta Corriente balances.

  Step 2

  Keep the taxes whose total changed since the last run.

  Step 3

  Email you the changes, one section per RUC, with intereses, multas, recargo and total.

• New ITBMS debits each month, posted to accounting

  Build this

  Starts

  On the 16th of every month at 8:00 Panama time, after ITBMS retentions are due

  Step 1

  For each RUC, get the Cuenta Corriente transactions for ITBMS.

  Step 2

  Keep the debits that were not there on the last run.

  Step 3

  Post each one, with RUC, tax, document number, date and amount, to your accounting system's webhook.

• Paz y Salvo for a client, when the balance is clear

  Build this

  Starts

  When a person starts it and names a RUC

  Step 1

  Get the Cuenta Corriente balances for the RUC.

  Step 2

  Stop and email you the open balances if any tax has a total above zero.

  Step 3

  Otherwise request a Paz y Salvo and email you its document number, taxpayer name and issue date.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

Once built, one call from your code

Once you have built a method, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get Cuenta Corriente balances” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "etax2.mef.gob.pa/get_cuenta_corriente_balances",
    "input": {
      "ruc": "155700001-2-2019"
    }
  }'

{
  "status": "completed",
  "data": {
    "ruc": "155700001-2-2019",
    "taxes": [
      {
        "tax": "ITBMS",
        "impuestos": 1840,
        "intereses": 22.6,
        "multas": 0,
        "recargo": 184,
        "total": 2046.6,
        "creditos_imputados": 0
      }
    ],
    "grand_total": 2046.6
  }
}

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

E-Tax 2.0’s own options

DGI's pages describe no API for e-Tax 2.0. Returns, the Cuenta Corriente, payment arrangements and Paz y Salvo requests are handled in the portal, where the account statement can be printed. Electronic invoicing is a separate system, the SFEP, used through an authorized provider (PAC) or DGI's Facturador Gratuito.

Read on November 12, 2026: Cómo emitir su Estado de Cuentas, Factura Electrónica, Preguntas frecuentes: NIT.

Signing in to e-Tax 2.0

e-Tax 2.0 signs you in with your RUC as Usuario and your NIT as the password, and the NIT must be changed every six months. Each RUC has its own sign-in. With Fous you sign in once per RUC through e-Tax 2.0's own sign-in: the login is sealed with AES-256, never returned by the API or written to logs, and an expired session is signed back in.

Worth knowing

One sign-in per RUC, a new NIT every six months

Every taxpayer signs in with its own RUC and NIT, so a firm that files for clients holds one login per client. DGI requires each NIT to be changed every six months.

Recovering a NIT goes through email

A forgotten NIT is replaced through a link sent to the registered email, valid for 2 hours. Changing that email takes a visit to a DGI Provincial Office.

Payments show at once

DGI says payments are reflected immediately in the Estado de Cuentas (account statement), so a morning check of the Cuenta Corriente already shows yesterday's payments.

Payment arrangements and the Paz y Salvo

A Solicitud de arreglo de pago (payment arrangement) needs 20% of the debt paid. To get a Paz y Salvo under an arrangement the required payment is 45%, and arrangements do not apply to fines.

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