What does tax compliance in Paraguay require?
An active RUC owes DNIT a declaration every month, filed by the fixed deadline assigned to the RUC's final digit (between day 7 and day 25 of the following month, per the official perpetual calendar), plus an annual income return where your profile requires one, plus records that trace each declared number to a document. Who owes what varies by taxpayer type; the monthly rhythm never varies.
What Compliance Means in Paraguay
In most countries, "tax compliance" means one accurate annual return and payment of the balance due. In Paraguay it means showing up twelve times a year. The system runs on monthly declarations through the Marangatu portal, and the obligation attaches to the RUC itself: an active RUC owes a filing every month, including months with nothing to report.
That single fact reshapes everything else. A late annual return is one error; a missed monthly filing is a recurring one, because next month brings another deadline while last month's gap is still open. Compliance here is less about clever positions and more about rhythm: the right form, the right numbers, the right day, every month, with documents behind each line.
It also means the opposite of what many foreigners assume. "Paraguay doesn't tax my income" is true for genuinely foreign-source income under the territorial system, but 0% is a rate, not an exemption from the process. The filings still go in, and it is those filings, more than the tax, that become the asset: the record behind a Tax Residency Certificate, a bank account review, or a permanent residency application.
Obligations by Taxpayer Type
The monthly core is universal. What sits on top of it depends on who you are in the system:
| Taxpayer type | Monthly | Annual and occasional |
|---|---|---|
| Foreign-income-only individual | No-movement (or low-activity) declaration each month; keep source proof for foreign income lines | Usually no IRP return (no Paraguay-source income); Tax Residency Certificate when needed |
| Individual with local income (local clients, local rent, local salary) | IVA declaration where the profile includes it; income classification recorded each month | IRP return (Form 515 or 516) if Paraguay-source income crosses the roughly G. 80 million threshold |
| Freelancer or professional | IVA on local services, electronic invoicing records, IVA credit tracking | IRP (individual) or IRE (company profile); expense documentation for net-income positions |
| Company owner (EAS, SRL, SA) | Company-level monthly cadence: IVA, withholding obligations where applicable | IRE return (Form 500, or 502 under RESIMPLE with fixed quarterly installments); owner-level dividend and IDU reporting |
| Crypto holder | Standard monthly cadence unchanged | Annual informative return under RG 47/2026 where qualifying activity applies (reporting, separate from income tax) |
Which row applies to you was decided at RUC registration, by your activity classification. If you do not know what yours says, that is the first compliance question to answer.
Three Obligations, Not One
Most people collapse Paraguayan compliance into "the monthly filing." It is actually three distinct obligations, each with its own deadline and its own fine when missed:
- The monthly tax return. Your IVA declaration (Formulario 120, obligation 211-IVA) or no-movement return, filed by your digit's day. This is the one everyone knows.
- The monthly voucher register. Under Resolución General 90/2021, every purchase and sale voucher is registered in Marangatu, and the register is confirmed monthly as obligation 955, by the same next-month due date as the tax return. It is a separate formal duty with its own contravención fine, not part of the tax return. Taxpayers whose only regime is IRP personal services confirm an annual register instead (956, due two months after fiscal-year close).
- The annual income return. IRP or IRE where your profile requires one, on top of the twelve monthly cycles.
The register is where the rumor of a "60-day" cadence comes from; the resolution says monthly. Skipping a register confirmation while filing the tax return perfectly still generates a fine, which is the most common way a "fully compliant" taxpayer turns out not to be.
The First 90 Days: Compliance for a New RUC
Most compliance damage happens in the first three months of a RUC's life, before the owner has ever thought of the system as monthly. Four moves in that window set the tone for years:
- Read your classification. The activity code and regime assigned at registration decide your forms. If it does not match what you actually do, correct it now; every month it sits wrong generates filings built on the wrong profile.
- Find your digit and calendar it. The last digit of your RUC (ignoring the check digit) fixes your monthly day, between the 7th and the 25th. One recurring calendar entry removes the single most common failure.
- File the first quiet month. The first no-movement return is the one everyone skips, because nothing happened and nobody has asked yet. Filing it starts the history; skipping it starts the gap.
- Align the bank story. The account your RUC activity touches should be able to explain its deposits with invoices and contracts. Unexplained inflows to a new RUC are the fastest way into a review.
Done in order, those four take an afternoon. Undone, they are the four items that later show up as the reason a certificate was refused or an account was frozen.
The Compliance Calendar: Deadlines by RUC Digit
Paraguay has no single national tax deadline. Under DNIT's perpetual calendar (Resolución General 01/2007, kept in force by RG 38/2020), each final RUC digit, ignoring the check digit, owns one fixed day per month. Filings for a month are due the following month, on that day:
| Last RUC digit (no check digit) | Fixed monthly deadline | Last RUC digit (no check digit) | Fixed monthly deadline |
|---|---|---|---|
| 0 | Day 7 | 5 | Day 17 |
| 1 | Day 9 | 6 | Day 19 |
| 2 | Day 11 | 7 | Day 21 |
| 3 | Day 13 | 8 | Day 23 |
| 4 | Day 15 | 9 | Day 25 |
Three consequences worth internalizing. Two businesses with identical activity can have deadlines three weeks apart. When your day falls on a weekend or holiday, it moves to the next business day, and only yours moves. And the deadline is for the previous month's declaration, so a digit-0 taxpayer files January's return on February 7th while a digit-9 taxpayer has until February 25th. The filing calendar guide covers the edge cases.
Penalties, and What DNIT Actually Does
The money penalties are defined and unforgiving. The late or missing declaration itself is a contravención under Art. 176 of Law 125/1991, fined between G. 50,000 and G. 1,000,000 per return, and the applied ceiling is higher because Art. 179 adjusts fixed sanctions upward by decree (at least G. 1,221,000 since Decreto 1256/2014, adjusted again since). If tax was due and unpaid, the Art. 171 mora stacks on top (Art. 178): 4% of the unpaid tax in the first month, rising through 6, 8, 10, and 12% to 14% at the longest delays, plus interest at 0.05% per day, about 1.5% per month. That 1.5% holds while you come forward voluntarily; once the debt was found in an audit or is under collection by the Abogacía del Tesoro, the reglamento (Decreto 6904/2005, Art. 3) steps interest to 2.5% per month. And a missing return with zero tax due still draws the contravención fine: the missing return is itself the breach, independent of any debt.
The bigger stick is administrative. Under Resolution 34/2025, DNIT strengthened RUC cancellation rules and compliance monitoring: it reviews RUC holders whose declarations do not align with their registered activity, flags them, and opens a notification window (ten days) to correct declarations and pay fines. Sustained non-filing can suspend the RUC itself.
As a rough illustration of how the numbers stack: a taxpayer who owes G. 1,000,000 in IVA and files about three months late faces roughly an 8% mora fine (G. 80,000, the third delay bracket) plus around 4.5% in daily interest over the delay (about G. 45,000), so the same return costs roughly G. 125,000 extra, before any formal fine for the late declaration itself. Scale that across a year of skipped months and the arithmetic stops being minor.
If gaps already exist, the repair is mechanical, and doing it in order matters:
- Look first. Open Marangatu's Visión General: it lists every obligation under your RUC and its status, done or pending. Two minutes, and it converts anxiety into a list.
- File the missing periods. Every skipped month gets its return (a no-movement return for quiet months) plus the voucher-register confirmations. The contravención fines generate as the filings go in.
- Pay or plan. Fines and any tax can go on an installment plan (cuotas) with DNIT; plan interest is 1.4% per month since Decreto 6478/2026, in force from September 2026. DNIT has also periodically opened exceptional regularization windows with reduced or zeroed interest on arrears, so whether one is running when you catch up changes the cost, and checking takes one question.
- Verify the record healed. Re-check Visión General until every period shows done, then pull the filing history or certificate you actually needed. The record does not heal on its own; it heals when the periods are filed.
What Non-Compliance Actually Blocks
The system does not send bailiffs. It closes three doors, and it tells you about it through a mailbox most people never open.
First, the notice: Marandú. Marandú (Resolución General 65/2015) is the electronic mailbox inside Marangatu where DNIT serves determinations, sanctions, and document requests. A notice is legally effective on the business day after it is sent, read or unread, and an unread notification locks the rest of Marangatu until you open it. Since RG DNIT 02/24, sanction procedures also copy your registered email, but the legal clock is the Marandú delivery. Checking the buzón monthly is the cheapest compliance habit there is.
Door one: invoicing. Under RG 61/2015 Art. 9, once five business days have passed after a missed retention filing or payment, or a missed IVA declaration or its payment, Marangatu refuses to issue your virtual invoices and retention receipts. The block applies with a valid timbrado and even if you owe no income tax, because it tracks IVA and retention obligations, not income. A business that cannot invoice stops billing, which is why an IVA default is never just a fine. Today's general e-invoicing regime runs on later rules (RG 92/2021, Decreto 872/2023), but the mechanism is unchanged: the system issues the document, so the system checks your status at emission.
Doors two and three: the record, then the certificates. Every gap sits in your DNIT history, and the moments that history gets pulled are exactly the moments you cannot afford a gap: a bank account review, a Tax Residency Certificate application, and a permanent residency file. The certificate process expects a compliant RUC with filings behind it, and the cumplimiento history is what reviewers read. For more on how foreign income interacts with these obligations, see our tax preparation guide; for the treaty layer on Paraguay-source income, the treaty guide covers it.
The Records Behind Compliance
A compliant filing is a traceable one. The records that matter: sales invoices you issued (electronic issuers' invoices already live in DNIT systems through e-Kuatia and SIFEN), purchase invoices and receipts you received, bank statements for accounts the RUC touches, and the contracts behind each income line. Because vouchers are registered in Marangatu, DNIT holds its own copy of most of this; your records exist to agree with theirs, line by line.
Classification is the load-bearing record: which income lines are Paraguay-source, which are foreign-source, and what documents support each call. That is a judgment task, not a data-entry task, and it is the layer where self-managed books most often go wrong. The bookkeeping guide covers the recording system; the advisory guide covers the judgment calls.
Records also decide disputes long after the fact. When a question surfaces eighteen months later, a deposit that traces to a contract and a registered invoice is a five-minute answer; a deposit that traces to nothing is an investigation. The work of keeping records is mostly the work of being able to answer later, quickly, with paper.
The Five Ways Compliance Actually Breaks
Almost every compliance problem we inherit traces back to one of five patterns. None of them involve evasion; all of them involve assumptions imported from another country's system:
- The borrowed deadline. Assuming the 15th, or the end of the month, or "whenever the accountant calls." The deadline is your digit's fixed day, and it is knowable on day one.
- The silent quiet month. Deciding that a no-movement month does not need a no-movement return. Twelve skipped quiet months is a full year of gaps, invisible until the first time the record is pulled.
- Classification drift. Registering under one activity, then actually doing another. DNIT's monitoring compares declarations to the registered profile, so drift eventually generates a flag rather than a bill.
- Mixed personal and company records. Company costs paid personally, personal income banked into the company account. Each crossover muddies both sides' filings and doubles the repair work.
- The disappearing preparer. A one-person shop that filed for years and stops answering. Filings quietly stop, the owner finds out at the worst moment, and the fix starts with reconstructing what was and was not filed. Ownership of the record, not just the filing, is what matters.
The common thread: every one of these is preventable with a checklist and a calendar, which is the unglamorous truth about compliance in Paraguay.
Annual and Occasional Obligations
On top of the monthly cadence, three events recur:
- Annual income returns. IRP for individuals (Form 515 or 516) where Paraguay-source income applies; IRE for companies (Form 500, or 502 under RESIMPLE, which pays fixed quarterly installments instead). The IRP guide and corporate tax guide carry the detail.
- The crypto informative return. Qualifying crypto activity triggers an annual report under RG 47/2026: who it covers, thresholds, and deadlines are on the RG 47/2026 page.
- Corporate registries. Companies carry registry obligations beyond tax filings, such as the final-beneficiary registry, handled where they belong in the full accounting engagement.
How We Keep You Compliant
The service is the rhythm, run for you: comprobantes registered in Marangatu, income classified each month, the right form filed by your digit's deadline, no-movement months included without you touching anything, annual returns assembled from twelve clean months, and the certificate handled on the $42 plan. You receive a confirmation after every filing window, which doubles as your compliance check. Setup is free in person in Asunción or $249 remote.
Concretely, a year in the service produces twelve filed declarations, a ledger that matches them, an annual return if your profile owes one, and, when a bank or a reviewer asks, a document trail that answers the question in one pass. That is the product: not a promise that nothing will ever be asked, but certainty about what the answer is when something is.
RUC Filing Service
Twelve clean filings a year, done for you
$35 per month billed annually. Setup free in person in Asunción, or $249 remote.
From $35/month billed annually ($420/year). Need the annual Tax Residency Certificate too? The filing + certificate plan is $42/month.