Decree 52/2025, issued on 29 December 2025, introduces significant amendments to Portugal’s VAT Refund Regulation (RRIVA), originally established by Decree 78/2017 and updated in 2022 by Decree 30/2022. The new rules will take effect from 29 January 2026, thirty days after publication. [pwc.pt], [pt.linkedin.com]
Scope of Amendments
The changes affect:
- Articles 4, 5, 7, 8, 10, 13, 16
- Entire Chapter III (Articles 18–23)
- Articles 25 and 26
- Repeal of Article 24 from RRIVA [pwc.pt], [pt.linkedin.com]
1. Strengthened Documentation Requirements
- Broader list of required supporting documents for VAT refund claims.
- New formats—documents must be signed, stamped, and submitted physically and electronically via platforms designated by the Tax Authority (e.g., institutional email, secure sharing systems). [pt.linkedin.com], [pwc.pt]
2. Streamlined Suspension Notifications
- Suspension notices must include:
- Legal basis for suspension
- Specific additional documentation needed
- A mandatory 30-day deadline for response or clarification. [pt.linkedin.com], [pwc.pt]
3. Rejection Grounds Clarified
Refund applications may be denied if the applicant has tax debts or material irregularities equal to or exceeding the claimed refund amount. [pt.linkedin.com], [pwc.pt]
4. Special Regimes
A. Diplomatic Missions & International Organizations
- Claims must be filed within 3 months of the invoice date.
- Records must be retained for 2 years. [pt.linkedin.com], [pwc.pt]
B. Mining & Oil Sector Special Refund Scheme
- Replaces previous “regularization” regime with a dedicated VAT refund mechanism.
- Implements tacit approval: no reply within 90 days means approval; this decision period reduces to 60 days starting 2028 (or 12 months post-digital rollout). [pt.linkedin.com], [pwc.pt]
- Eligibility requirements:
- Research/development projects need ≥ USD 25 million investment.
- Production phase requires ≥ 60% of sales destined for export.
- Claimants must not have had serious tax offenses in the past 3 fiscal years. [pt.linkedin.com], [pwc.pt]
- Requires annual registration with the tax authorities.
- Introduces a guarantee (caution) provision for high-risk cases.
- Refund decisions: tacit approval applies to both initial and appeal processes (claims, grace appeals, hierarchical appeals) if no decision is issued within defined deadlines. [pt.linkedin.com], [pwc.pt]
5. Fast-Track Refunds & Risk Controls
- For the mining/oil regime:
- 60-day refund deadline (60 days post-2028 or digital transition).
- Automatic tacit approval when deadlines pass.
- Requirement to return erroneous refunds within 30 days after notification. [pt.linkedin.com], [pwc.pt]
Effective Date
All provisions take force on 29 January 2026, marking a more structured, efficient, and transparent VAT refund framework. [pwc.pt], [pt.linkedin.com]
These amendments reflect Portugal’s ongoing efforts to enhance tax compliance, reduce administrative burdens, and promote sector-specific efficiency—especially for strategic industries like mining and energy.
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