The RUC in Paraguay: How Foreign Residents Register, File and Close It

What the RUC is

The RUC is the single register of taxpayers kept by the Dirección Nacional de Ingresos Tributarios (DNIT), the authority that took over the functions of the former Subsecretaría de Estado de Tributación (SET). The rules on joining it, keeping it up to date and leaving it are set by Resolución General N° 79/2021, as amended by Resolución General N° 133/2023 and Resolución General N° 34/2025.

Being on the register gives you three things:

• An identifier, followed by a dígito verificador (check digit) written after a hyphen. The DNIT assigns the check digit when it approves the registration, and it must be quoted wherever the RUC is used.
• One or more obligations: the taxes and returns you have registered for, each with its own code in the system.
• Access to Marangatu, the DNIT's online tax system, through a confidential access key. Returns, data changes, suspension and cancellation all go through it.

Who needs one

The DNIT describes the RUC as obligatory for anyone carrying on economic activity, individually or through a business. For individuals, the triggers that matter most are these:

If a resident passes the IRP-RSP threshold and does not register, and the DNIT finds out, it will register the person itself and apply sanctions. Registering late is a contravention that carries a fine. Neither the DNIT's notices nor RG 79/2021 states the amount, and we do not quote one.

The IRP is territorial. Income that is not Paraguayan-source under Article 48 of Ley N° 6380/2019 is outside it (see what 0% actually covers). So a resident whose only income is foreign may have no rule obliging them to register at all. If you want a RUC anyway, be clear about why.

The RUC and your cédula

Since RG 133/2023, a foreign individual with temporary or permanent residence has a RUC identifier equal to their cédula number. Foreigners registered earlier on a migration carnet, with a number in the 50,000,000 series, had to switch to their cédula number through Marangatu by May 2024.

In practice, the sequence is residency, then cédula, then RUC. The DNIT's current list of documents for a foreign individual asks for an identity document or passport "issued in Paraguay". For a foreign resident, that means the cédula.

How a foreign resident registers

1. The online application. On the DNIT website, under Servicios Online, choose "Inscripción en el RUC" and then Persona Física (form 600). Enter your identity details, an email address and a mobile number, both of which are mandatory, and your fiscal address. The address needs a street and number, or a precise landmark, and the form asks for a cadastral account number (shown on utility bills) or the property's padrón, so have one to hand. You then choose a main economic activity (up to five secondary ones may be added), the start date and the obligations.
2. The attachments. Scan the originals to PDF, at most 10 MB per file, with both sides of any identity document. For an individual, the DNIT also requires a clear colour photograph of your face with the front of your identity document held beside it.
3. Review. The DNIT has three business days to process the application. If something is wrong, it emails you the observations and a link, and you have five business days to correct the application once. If you miss that window, the application is annulled and you start again. If the identity number you typed does not match the document you attached, the application is rejected outright.
4. Completion and the clave de acceso. The DNIT emails you to book a visit to its office, where you sign the registration form, the request for a clave de acceso (form 630) and the Acta de Manifestación de Voluntad (form 625), and receive the key. You bring only your original identity document.

Fail to attend within 30 days of being summoned and the application is annulled.

What the RUC commits you to

Each obligation carries its own filings, and the DNIT's guidance on the individual ones is explicit.

Where an obligation requires periodic returns and you had nothing to declare, the DNIT has a declaración sin movimiento, a nil return that can be filed from its website without the access key. A nil return missed is still a late return.

The IRP-RSP obligation ends in three situations: death, a definitive move abroad, and two consecutive fiscal years in which income does not exceed ₲80,000,000, in which case the duty to file stops from the following year. For someone registered with no Paraguayan income, that suggests at least two annual returns before the duty lapses, although we have not found DNIT guidance on how the rule is applied to a voluntary registration.

The obligation you choose also decides which source rule applies to you. Read IRP vs IRE before you tick a box on form 600.

Do you need a RUC for the tax residency certificate or a bank account?

The certificate: the text of RG 65/2020 does not require one from everyone. A registered taxpayer applies with the RUC, current tax compliance and a copy of the cédula. A person who is not, or is no longer, a taxpayer applies with a copy of the cédula. Individuals in both categories also need a Constancia de Movimiento Migratorio for the period. So on the text, a RUC is a condition only for people who already have one, and for them the real condition is being up to date. The full requirements are on our tax residency certificate page.

A bank account: no published rule makes a RUC a condition. Banks apply their own customer due diligence policies within the SEPRELAD framework, and a RUC is one of the documents they may ask for, typically as evidence of a declared activity. See opening a bank account in Paraguay.

Suspending or cancelling a RUC

Temporary suspension (Article 11 of RG 79/2021) is requested in Marangatu within 30 business days of the date it starts, giving the dates and the reason; no documents are required. Before you can suspend, you must be up to date with all returns. A suspension lasts at most 60 months and then lapses automatically, which returns the RUC and its obligations to active.

A suspension relieves you of periodic returns but not annual ones. The IRP and IRE returns, financial statements and tax audit reports are expressly excluded from the relief. If the DNIT finds taxable operations during a suspension, it revokes the suspension back to its start date.

Cancellation (Articles 17 to 22) is for a definitive end of activity. Submit form 623 in Marangatu within 30 business days of stopping, and attach the documents that apply. An individual without an access key can ask through the DNIT's Contáctenos channel and then take the signed form 623 and a copy of the cédula to an office. The DNIT admits the request only if the RUC is active or suspended, every return and payment is up to date to the date you stopped, a closing return has been filed for each tax, and no procedure is pending. From 1 May 2026, RG 34/2025 adds customs conditions, which matter only if you import or export. The DNIT decides within ten business days. Records must still be kept until the tax is time-barred, and earlier years remain open to audit.

What we would actually do

• Get the cédula first. Your RUC will carry its number, and the current document list assumes you have it.
• Register for a purpose. Paraguayan income, a business, a bank that asks or a certificate file that needs one. "Everyone gets one" is not a reason.
• Choose the obligation with advice. The obligation sets your filings for years, and choosing an IRE obligation changes which source rule applies to you.
• Diarise the dates on day one: February receipts confirmation, March IRP return, your validation month.
• Close it properly when you leave. A move abroad ends the IRP-RSP obligation, but the register still needs its closing returns and form 623. An abandoned RUC keeps accruing missed filings.

We register RUCs for clients as a separately priced add-on, not as part of the residency package, because not everyone needs one. See the pricing page. This page describes the DNIT's published rules. It is not tax advice on your own circumstances.