CRS Deadlines and Requirements in Mauritius

CRS deadlines for Mauritius financial institutions are set by the Mauritius Revenue Authority. Annual CRS returns have to be sent to the MRA by 30 June, and that’s for the preceding calendar year. So the 30 June 2026 date covers the 2025 reporting year. CRS 2.0 kicked in on 1 January 2026, and it really widened what needs to be disclosed.

Introduction

Mauritius is often seen as a go-to jurisdiction for holding structures, investment funds, trusts, and global business companies. But with that nice position comes automatic exchange of information obligations, and many entities underestimate that until the deadline is close. 

CRS deadlines Mauritius financial institutions face follow a fixed yearly rhythm, and CRS 2.0 expanded the scope in a way that catches people off guard. For fund managers, trustees, and compliance officers, understanding who has to report, what has to go into the submission, and when it’s due is the starting point.

What is CRS and who does it apply to?

The Common Reporting Standard is the OECD’s global framework for automatic sharing of financial account details. Mauritius is a signatory to the OECD’s Multilateral Competent Authority Agreement on CRS. Who typically has to report includes:

• Banks and custodial institutions that keep accounts for tax residents in other CRS jurisdictions  
• Investment entities, including a lot of Mauritius holding companies and trusts, are usually administered by professional financial institutions  
• Specify insurance companies that offer cash-value or annuity-type products  
• Global Business Companies (GBCs) that are classified as Investment Entities based on how their assets are made up  

People sometimes assume they are exempt, and then that ends up as a serious compliance risk. Classification has to be proven and documented.

When is CRS filing due in Mauritius?

Here is the usual timing for Mauritius CRS deadlines:

Registration doesn’t have a clear “last date,” but filing is basically impossible without it. In practice, early registration becomes more of a necessity than an optional step.

What changed under CRS 2.0 in 2026?

The MRA confirmed on 22 May 2026 that CRS 2.0 became effective on 1 January 2026. From then on, reporting financial institutions must include things like:

• Self-certification confirmations: these must be actively documented, not just quietly collected at account opening  
• Controlling person roles: these are now reported with more detail, compared to the older CRS approach  
• Cryptoasset entities: entities dealing with relevant cryptoassets are now more clearly treated as investment entities  
• Electronic money products and CBDCs: holders are classified as depository institutions  
• TINs and dates of birth: for reportable pre-existing accounts, these should be obtained by the end of the second calendar year after identification  

Mauritius also signed the Cryptoasset Reporting Framework (CARF) multilateral competent authority agreement in December 2025. At the moment, domestic CARF regulations have not yet been published, so the landscape is still shifting.

How to file CRS in Mauritius?

CRS filing is done via the MRA’s e-Services site at eservices.mra.mu, roughly like this:

1) Register with the MRA FATCA/CRS unit, including the entity name, legal structure, and a Mauritius address for password delivery  

2) Log in to the MRA e-Services portal using the credentials you receive  

3) Do due diligence for all account holders, collect self-certifications, TINs, and dates of birth where required  

4) Prepare the return in XML format, which is the OECD format requirement. The responsibility sits with the financial institution  

5) Report account currency data per individual account, including balance and income items  

6) Upload the XML file through the e-Services portal before 30 June  

7) Keep all supporting documentation, including due diligence records and self-certifications, for at least five years  

What are the penalties for missing CRS deadlines?

If you miss the CRS deadlines Mauritius expects, consequences can show up on two levels:

• Administrative penalties from the MRA for late or missing returns. The penalty is MUR 2,000 per month, up to a maximum of MUR 20,000 for failure to file  
• Reputational exposure with correspondent banks, institutional counterparties, and foreign tax authorities in partner jurisdictions  

Also, correcting a missed or incomplete filing usually ends up costing more, both in time and money, than getting it right before the deadline.

How can Arnifi help?

Managing CRS deadlines in Mauritius compliance involves registration, due diligence, XML preparation, and submission in accordance with the annual calendar. Now CRS 2.0 adds new data points, so the workload is heavier. Arnifi supports Mauritius-based entities across the full compliance loop: MRA registration, account holder due diligence, preparation of the CRS return in the required XML format, plus deadline tracking through the whole reporting year.

FAQs

Q1. What are the CRS deadlines in Mauritius?  

You submit the annual CRS returns to the MRA by 30 June each year, and it covers the earlier calendar year.

Q2. When is CRS filing due in Mauritius for the 2025 reporting year?  

It’s due 30 June 2026, and that date covers all reportable accounts tied to the 2025 calendar year.

Q3. How do I file CRS in Mauritius step by step?  

Start by registering with the MRA, then do due diligence on the account holders, prepare the XML return, and upload it through MRA e-Services before 30 June. 

Q4. What is CRS 2.0 in Mauritius?  

CRS 2.0 started on 1 January 2026; it brings in additional self-certification confirmations, clearer controlling person roles, and new cryptoasset entity classifications that now need to be reflected in reporting.

Q5. Do Mauritius holding companies need to file CRS?  

Often, yes. When holding companies are run or handled by professional financial institutions and mainly hold financial assets, they are commonly treated as investment entities for CRS purposes.

Q6. What format is required for CRS reporting in Mauritius?  

Every CRS return has to be in XML format, as required by the OECD. And yes, each account is reported under its own denomination currency.

Conclusion

The CRS deadlines Mauritius financial institutions face are fairly fixed, but the details keep getting heavier under CRS 2.0. The 30 June deadline stays the same; still, what must sit inside each return has grown a lot since January 2026. 

If your entity has not reviewed its classification or refreshed due diligence procedures since CRS 2.0 came into effect, the difference between what was previously filed and what is now expected is absolutely worth closing before the next cutoff day shows up. Speak with our expert team at Arnifi and get your Mauritius CRS filing handled correctly from day one.

REFERENCES:
CRS Mauritius
Cryptoasset Reporting Framework (CARF)
KPMG Mauritius: CRS 2.0 effective January 1, 2026