How CRS automatic exchange of information works: what your bank will transmit to the tax authorities in 2026

Each year, your Paraguayan bank, your Mercury Bank account in the United States, your Luxembourg life insurance, and your Interactive Brokers broker send detailed information about your accounts to tax authorities around the world. Your name, address, tax identification number, balances, financial income—everything is transmitted automatically, without your knowledge, without your authorization, and without you being able to prevent it. This is the Common Reporting Standard (CRS)—the global system for automatic exchange of tax information that killed international banking secrecy.

If you are an expatriate in Paraguay (or are considering becoming one), understanding CRS is essential. Not to circumvent it—that's impossible and illegal—but to know exactly what information is circulating, between which institutions, to which administrations, and how to structure your financial life so that this information confirms your tax position instead of contradicting it.

CRS: Origins and Functioning

Where CRS Comes From

CRS arose from the post-2008 political will to end international tax evasion:

• 2010 — FATCA (USA): The United States launched the Foreign Account Tax Compliance Act, which requires banks worldwide to report accounts held by US citizens and residents to the IRS. This was the first large-scale automatic exchange system. Banks that refused were excluded from the US financial system—a commercial death penalty. Result: everyone cooperated.
• 2014 — CRS (OECD): Inspired by FATCA, the OECD developed the Common Reporting Standard—a global and multilateral version of FATCA. Instead of a single country (the USA) collecting data, CRS created a network where all participating countries exchange data with each other.
• 2017-2018 — First Exchanges: The first CRS exchanges took place in 2017 (early adopters: EU, Switzerland, Singapore, Hong Kong) and 2018 (second wave: ~60 additional countries). By 2026, over 110 countries participate in CRS.
• Paraguay and CRS: Paraguay has joined CRS and conducts automatic exchanges of information. Your Paraguayan bank account is reported to the tax authorities of the countries where you are identified as a tax resident (or a citizen, in the case of FATCA for the USA).

The Principle in One Sentence

Financial institutions (banks, brokers, insurers, funds) in each participating country collect information on accounts held by non-tax residents and automatically transmit it to the tax administration of the account holder's country of tax residence.

In other words: if you are a Paraguayan tax resident and have an account in Switzerland, the Swiss bank transmits your account information to the Paraguayan tax administration (the DNIT). If you are a French tax resident and have an account in Paraguay, the Paraguayan bank transmits your information to the French tax authorities (the DGFiP).

The Data Flow Diagram

Step	Actor	Action
1	You (the account holder)	You open an account at a bank. The bank asks for your country of tax residence and your tax identification number (TIN). You sign a self-certification (CRS/FATCA form).
2	The bank (reporting financial institution)	The bank identifies you as a tax resident of a foreign country (not the country where the bank is located). It collects the required information: identity, address, TIN, balances, financial income.
3	The bank → local tax administration	The bank transmits the information to its own country's tax administration (e.g., the Swiss bank transmits to the Swiss FTA).
4	Local tax administration → foreign tax administration	The local tax administration transmits the information to the tax administration of your country of residence (e.g., the Swiss FTA transmits to the Paraguayan DNIT). The exchange occurs annually, usually in September of the following year (2025 data is exchanged in September 2026).
5	The tax administration of your country of residence	The DNIT (Paraguay) receives information about your accounts abroad. It can use this to verify the consistency of your Paraguayan tax returns.

What Information is Exactly Transmitted

Data Collected by the Bank

CRS requires financial institutions to collect and transmit the following information for each account held by a non-tax resident:

Category	Information Transmitted
Account Holder Identity	Full name, date of birth, residential address
Tax Identification	Declared country of tax residence, tax identification number (TIN) of the country of residence. For Paraguay: your RUC. For France: your tax number (13 digits).
Account Number	Account number or client reference
Institution Name	Name and identifier of the bank/broker/insurer
Account Balance	Balance as of December 31 of the year (or as of closing date if the account was closed during the year)
Financial Income	Depending on account type: gross interest (savings account), dividends (securities account), gross proceeds from sale of securities (broker), life insurance income (redemption, benefits)

What the Bank Does NOT Transmit

• Details of your transactions: CRS does not transmit a list of your transfers, card purchases, or payments. It transmits balances and financial income, not the detailed movement of every euro.
• Your expenses: How much you spend on restaurants, rent, or travel is not in CRS.
• Accounts of local residents: CRS only concerns non-residents. If you are a Paraguayan tax resident, your Paraguayan account is NOT reported to Paraguay via CRS (it is a local resident account). It is reported to foreign countries where you are identified as a potential taxpayer (for example, if the bank noted that you were formerly French).
• Small accounts (in some cases): Accounts with a value of less than 250,000 USD may be exempt from CRS in some jurisdictions (de minimis threshold for pre-existing individual accounts). But this threshold does not apply to new accounts.

CRS in Practice for a Paraguayan Tax Resident

Which Accounts Are Reported, to Whom, and Why

Let's take the typical profile of a French-speaking expatriate in Paraguay with the recommended structure:

Account	Country of Bank	Declared Tax Residence	Information Transmitted To
Mercury Bank (US LLC)	USA	US LLC business account (owner resident PY)	IRS (FATCA) → potentially DNIT Paraguay (if bilateral USA-PY CRS agreement)
Paraguayan bank account (personal)	Paraguay	Tax resident PY	Nothing (local resident account — no outgoing CRS report). But if previous FR residence detected: potentially DGFiP France.
Interactive Brokers (investment account)	USA / Ireland (depending on entity)	Tax resident PY	DNIT Paraguay (via CRS) — balances and financial income are transmitted to PY.
Luxembourg life insurance	Luxembourg	Tax resident PY	DNIT Paraguay (via CRS Luxembourg → Paraguay)
Old Boursorama account (France, not closed)	France	Non-resident (if updated) or FR resident (if not updated)	If "non-resident PY" status: DNIT Paraguay. If "FR resident" status: nothing (local account). Warning: if status is not updated, the bank does not report anything via CRS and the DGFiP continues to see you as a resident.
Wise (multi-currency account)	Belgium / UK / Lithuania (depending on entity)	Tax resident PY	DNIT Paraguay (via CRS)

The Special Case of FATCA (USA)

The United States has not joined CRS (they have FATCA, their own system). The FATCA-CRS relationship is asymmetrical:

• Foreign banks report to the IRS: Via FATCA, all banks worldwide (including Paraguayan) report accounts held by US citizens or residents ("US persons") to the IRS.
• The IRS does not automatically report to other countries: The USA does not participate in multilateral CRS. The IRS exchanges information with some countries via bilateral agreements (IGAs — Intergovernmental Agreements) but these exchanges are often one-way or limited.
• For a PY resident with Mercury Bank (US): Mercury Bank reports to the IRS (FATCA — because Mercury is a US bank), but the IRS does not necessarily transmit this information to Paraguay (unless there is a specific, limited bilateral agreement). In practice, your Mercury Bank account is less visible to the Paraguayan DNIT than your Interactive Brokers (Ireland) account or your Luxembourg life insurance (which go through multilateral CRS).
• Important: This does NOT mean that Mercury Bank is "invisible." The IRS can transmit information to other countries as part of specific requests (exchange on request, administrative assistance). And Mercury Bank itself collects your tax residence (Paraguay) and may be required to report under future agreements.

The Case of France After Your Departure

When you leave France for Paraguay, a technical problem arises with CRS:

• Your old French accounts: If you have a Boursorama, Crédit Agricole, or LCL account and have updated it to "non-tax resident, resident Paraguay," the French bank will report this account to Paraguay via CRS (you are a French non-resident holding an account in France → information transmitted to your country of residence = Paraguay).
• If you have NOT updated your status: The bank still considers you a French tax resident. It does not report anything via CRS (you are a local resident with a local account = no CRS report). But in parallel, your foreign accounts (Mercury, Interactive Brokers, Luxembourg) are reported to the Paraguayan DNIT — not to the French DGFiP (since you declared being a PY resident to these institutions).
• The risk: If your French bank does not know you have left, it continues to treat you as a French resident. The DGFiP does not receive CRS reports from your foreign accounts (since these institutions send them to Paraguay, not France). France has no information on your foreign accounts via CRS. But if one day France discovers that you have left (via an audit, a report, or cross-referencing) and reclassifies you as a French resident, it can then request information retroactively—via exchange on request or the multilateral administrative assistance convention.
• The solution: Update the status of ALL your bank accounts when you leave. Inform each bank of your new country of tax residence (Paraguay) and provide your new TIN (Paraguayan RUC). This is a legal obligation (CRS self-certification) and is in your best interest (consistency of your tax file).

Self-Certification: The Key Document

What It Is

Self-certification is the form that every financial institution requires you to sign to determine your CRS tax residence. It is a standard document that asks for:

• Your full name and date of birth
• Your current residential address
• Your country or countries of tax residence
• Your tax identification number (TIN) for each country of tax residence
• Your signature attesting that the information is correct

Why It's Important

Self-certification determines to which country your information is sent. If you declare to be a Paraguayan tax resident (RUC: XXXXXXX), your information is transmitted to the DNIT. If you declare to be a French tax resident (TIN: XXXXXXXXXXXXX), your information is transmitted to the DGFiP.

• Declaring Paraguay as your tax residence: Your accounts are reported to the Paraguayan DNIT. The DNIT receives the data but, since foreign income is not taxable in Paraguay (territoriality), this information has no practical tax consequence. The DNIT receives it, archives it, and does nothing more (there is no tax to calculate on exempt income).
• Not updating self-certification after leaving France: Your old accounts report to the French tax authorities (who think you are still a resident). Your new accounts report to Paraguay. Inconsistency = risk.

How to Update Your Self-Certification

1. French bank (Boursorama, CA, etc.): Contact customer service. Request to change to "non-resident account." Provide your new address in Paraguay, your cédula, and your RUC. Sign the new CRS self-certification.
2. Mercury Bank: Update your address and country of tax residence in your LLC account settings. Provide your Paraguayan RUC.
3. Interactive Brokers: Update your tax residence in "Account Settings > Tax Information." Provide the RUC.
4. Luxembourg insurer: Inform your manager of your change of tax residence. They will update the self-certification and the CRS report.
5. Wise, Revolut, N26: Update in the app ("Personal Information" or "Tax Information" section).

Make these updates within 30 days of your change of tax residence. This is a regulatory CRS obligation and is crucial for the consistency of your tax file.

To respond to these bank requests, the key document is the Paraguayan tax residence certificate, issued by the DNIT.

CRS and France: What the DGFiP Knows About You

Data the DGFiP Receives via CRS

If you are (or were) a French tax resident, the DGFiP automatically receives CRS data from your accounts abroad:

• Every foreign bank that identifies you as a French tax resident annually transmits your balances and financial income to the DGFiP.
• The DGFiP cross-references this information with your income tax return (2042) and your foreign account declaration (3916).
• Inconsistency = alert signal. For example: the Swiss bank reports an account with a 500,000 € balance, but you have not declared this account on form 3916 → red flag → audit.

What Happens When You Leave and Don't Update

Problematic scenario: you leave France for Paraguay but you do not update your tax residence with your foreign banks:

• Interactive Brokers (Ireland) continues to report you as a French tax resident → transmits your data to the DGFiP.
• The DGFiP receives the data and notes that you have foreign accounts with financial income—but you have not filed a 2042 declaration in France (since you think you are a non-resident).
• The DGFiP wonders: "This taxpayer has active foreign accounts reported in our name, but they are no longer filing a declaration. Did they leave without telling us? Are they still a resident but no longer declaring?"
• Possible outcome: formal notice to declare, ex officio taxation, and audit procedure.

Solution: update ALL your CRS self-certifications as soon as you change residence. Thus, Interactive Brokers reports to the Paraguayan DNIT (not the DGFiP), and the DGFiP no longer receives anything → consistency.

The FICOBA File and French Accounts

In addition to CRS (which concerns foreign accounts), France has the FICOBA file (National File of Bank Accounts and Similar) which lists all accounts opened in France:

• Any account opened, modified, or closed in France is registered in FICOBA.
• The DGFiP can consult FICOBA to know which accounts you hold in France, even if you are a non-resident.
• An active French account (regular movements) while you claim to live in Paraguay is an indication of life in France that the tax authorities can use.
• Recommendation: keep your French account in "non-resident" mode with minimal movements (only for operations related to France: SCI, alimony, etc.).

CRS and Paraguay: what the DNIT knows and does

Data received by the DNIT

As a Paraguayan tax resident, the DNIT receives CRS data for your accounts abroad:

• Your Interactive Brokers account (Ireland) → the Irish tax authorities transmit to the DNIT.
• Your Luxembourg life insurance → the Luxembourg tax authorities transmit to the DNIT.
• Your Wise account (Belgium/Lithuania) → the respective administrations transmit to the DNIT.
• Your old Boursorama account (France, set to non-resident PY) → the DGFiP transmits to the DNIT.

What does the DNIT do with this data?

In practice, the DNIT receives the data, but the consequences are limited due to territoriality:

• Foreign source income: interest on your Swiss account, dividends from your Interactive Brokers portfolio, income from your Luxembourg life insurance — all of this is foreign source. Paraguay does not tax it. The DNIT receives the information but has no legal basis to tax you. The information is archived but without tax follow-up.
• Consistency check: the DNIT can use CRS data to verify that your IRP declarations are consistent. If you declare 0 PYG of Paraguayan income but the CRS shows a Paraguayan account with 50,000 USD in interest (Paraguayan source), the DNIT could ask questions. But if your Paraguayan income is correctly declared (rent, local interest, etc.), there is no problem.
• In practice: Paraguay does not (yet) have a very sophisticated tax administration in the use of CRS data. The DNIT receives it but uses it little. This could evolve with the administration's increasing competence, but in 2026, the risk is low.

What this means for you

CRS in Paraguay is NOT a problem — it's a tax non-event thanks to territoriality. Your foreign accounts are declared to the DNIT, the DNIT sees your foreign balances and income, and it can do nothing because these incomes are exempt by Paraguayan law. CRS is designed for countries with worldwide taxation (which want to know how much their residents earn abroad to tax them). In a territorial country like Paraguay, CRS sends information that no one uses.

This is a structural advantage of territoriality: CRS is neutralized by local tax law. You are transparent (all your information is exchanged) but you are not taxed (Paraguayan law exempts foreign income). Transparency + exemption = the best of both worlds.

CRS pitfalls to avoid for expats

Pitfall 1: Not updating your tax residence with banks

This is the most frequent and dangerous pitfall:

• You leave France for Paraguay but you do not change your tax residence at Interactive Brokers, Wise, or your Luxembourg insurer.
• These institutions continue to report your data to the French DGFiP (not to the Paraguayan DNIT).
• The DGFiP receives data on your accounts → you no longer declare in France → alert signal → potential audit.
• Solution: update your tax residence with ALL your financial institutions within 30 days of obtaining your Paraguayan cédula and RUC.

Pitfall 2: Declaring a false tax residence

Some expatriates are tempted to declare tax residence in a country where they do not actually reside (for example, declaring to be a resident of Dubai while living in Paraguay) to prevent CRS data from being transmitted to a specific country. This is fraud:

• The CRS self-certification is a legal document. Declaring a false residence is a crime.
• Banks are increasingly verifying the consistency of the declared residence (login IP address, geolocated payments, postal address). A residence declared in Dubai but with daily connections from Asunción will be detected.
• Penalties range from account closure (by the bank, for KYC non-compliance) to criminal prosecution (by the tax authorities, for declaration fraud).
• No need to cheat: Paraguay offers 0% on foreign income perfectly legally. Declare your true residence (Paraguay) and benefit from territoriality in full legality.

Pitfall 3: Ignoring French declaration obligations for the year of departure

The year you leave France, you must still file a French income tax return (2042) for the period of French residence (from January 1st to the date of departure). This declaration includes:

• Your income for the French residence period (pro rata temporis).
• The declaration of your foreign accounts opened during the residence period (form 3916).
• If you were a French resident on January 1st, you must declare foreign accounts held on December 31st of the previous year.

Not filing this departure declaration is a red flag for the tax authorities — and a potential fine. File it correctly, even if it shows little income.

Pitfall 4: Joint account with a resident of another country

If you have a joint account (for example, with your spouse who is still a French resident), CRS can complicate things:

• The joint account is reported to the countries of residence of BOTH account holders.
• If you are a PY resident and your spouse is a FR resident, the bank reports the account to both the DNIT (your residence) and the DGFiP (your spouse's residence).
• The DGFiP sees the balance of the joint account and may wonder why your spouse has an account with a non-resident → questions about your own tax status.
• Solution: if possible, separate accounts (each a individual account). If the joint account is necessary, accept that data will be transmitted to both countries and ensure that declarations on both sides are consistent.

Pitfall 5: Shell companies and CRS

CRS is not limited to individual accounts. It also covers passive entities (companies whose income is primarily passive — investments, holding) and identifies "controlling persons" (beneficial owners):

• If you have a holding company in Panama or BVI that holds an account in Switzerland, the Swiss bank reports the company's account AND identifies the individuals who control that company (the beneficial owners).
• CRS data tracks individuals through corporate structures. A US LLC, a Luxembourg holding, or a Panamanian company does NOT hide you from CRS — banks look through the structure to identify the ultimate beneficiary.
• Your US LLC at Mercury Bank: Mercury identifies that you (PY resident) are the owner of the LLC. LLC data can be transmitted via FATCA (to the IRS) and potentially relayed to Paraguay (via bilateral agreements).

CRS was designed precisely to pierce corporate structures. Shell companies no longer protect from tax transparency since CRS came into force. And that's very good: when you are in a territorial country, transparency is your ally (you have nothing to hide since your foreign income is legally exempt).

DAC8: CRS extended to crypto-assets

What changes in 2026

The European DAC8 directive extends the CRS framework to crypto-assets. Crypto platforms operating in the EU (Kraken EU, Coinbase EU, Bitstamp) must now automatically report their users' transactions to tax authorities:

• Data transmitted: account holder's identity, tax residence country, TIN, crypto balance as of December 31st, gross proceeds from disposals (sales, exchanges), and income (staking, lending).
• For a PY resident: Kraken EU transmits your crypto data to the Paraguayan DNIT. The DNIT receives it but cannot tax you (foreign source income = 0% under territoriality). In parallel, DNIT Resolution 47/2026 requires reporting if your crypto transactions exceed 5,000 USD/year — but this is only reporting, not a tax.
• For a former French resident: if you have not updated your tax residence at Kraken EU, your crypto data is transmitted to the DGFiP → alert signal if you no longer declare in France.

Non-EU exchanges

Non-EU exchanges (Binance global, OKX, Bybit) are not directly subject to DAC8. But:

• The OECD's Crypto-Asset Reporting Framework (CARF) — the CRS for crypto — is being adopted worldwide and is expected to cover non-EU exchanges by 2027-2028.
• Exchanges that want to operate in the EU (even indirectly) will have to comply with DAC8.
• In practice, crypto transparency is a matter of time — within 2-3 years, almost all exchanges will report automatically.

CRS strategy for a Paraguayan resident

CRS checklist post-expatriation

1. French bank: switch to "non-resident, Paraguay resident". Provide cédula + RUC. New signed CRS self-certification.
2. Mercury Bank (US LLC): update owner's (beneficial owner) address to "Asunción, Paraguay". RUC provided.
3. Interactive Brokers: update "Tax Residence: Paraguay". RUC provided. W-8BEN form updated (non-US person).
4. Luxembourg life insurance: notification to manager. Self-certification update. RUC communicated.
5. Wise / Revolut / N26: update tax residence in the app. RUC provided.
6. Crypto platforms (Kraken, Coinbase): update tax residence. RUC provided.
7. Any other financial account (savings, pension, broker): same procedure.

A domiciliation in Paraguay with a real lease gives you the proof of address that these checks require.

Recommended timeline

Time	CRS Action
Obtain cédula + RUC	Immediately begin CRS updates with all institutions.
30 days later	All self-certifications updated. Confirmations received from each institution.
December 31st of the departure year	Verify that ALL accounts are registered with "Paraguay residence" as of 31/12 (CRS reporting date). If an account is still in "France resident" as of 31/12, the entire year's data will be sent to the DGFiP.
September year N+1	Year N CRS data is exchanged between countries. Verify everything is consistent.
Each year	Confirm your self-certifications are up to date. Institutions may contact you for periodic verification.

Conclusion

CRS is the global tax transparency system that automatically transmits information about your financial accounts to the tax authorities of your country of residence. In 2026, over 110 countries participate — including Paraguay. International banking secrecy is dead. Your accounts, balances, and financial income are transmitted annually, automatically, worldwide.

For a Paraguayan tax resident, CRS is a tax non-event. Your information is transmitted to the Paraguayan DNIT, and the DNIT can do nothing with it — because foreign-source income is exempt by territoriality. CRS transmits the data, Paraguayan law neutralizes it. This is the beauty of the territorial system: you are 100% transparent and 100% exempt at the same time.

Pitfalls exist — but they are all avoidable: update your tax residence with all your financial institutions, declare your true country of residence (Paraguay), file your last French declaration, and maintain consistency between your declared residence and your real residence. CRS is only dangerous for those who lie or forget to update. For an honest and organized expatriate, it is a system that confirms your tax position instead of threatening it.

The world has changed: transparency is total. But when you live in a country where the law says your foreign income is 0%, transparency is your best friend.

Do you want a transparent and secure tax expatriation? Contact our team for comprehensive support: Paraguayan residency (from €1,400), coordination of CRS updates with all your financial institutions, DNIT accounting (€30/month), and US LLC structuring. Total transparency, zero tax — legally.