Custody tax oversight
Protocol monitors your custodian's withholding tax recovery service to ensure it's working effectively and helps you get the most out of what your custodian offers.
The independent control layer for global withholding tax leakage
Our software platform Protocol reveals unnoticed losses, quantifies their financial impact, and governs recovery outcomes across global investment portfolios — preventing leakage from recurring.
Solution
Our leading solution Protocol
Organized by fund, custody account, year, and investment country, Protocol consolidates all relevant information — income data, reclaims received and outstanding, recovery progress, required actions, and upcoming deadlines — into a single, continuously updated dashboard. It gives institutional investors and asset managers an up-to-date overview of their global withholding tax position every time they log in.
Optimize your
withholding tax recovery
Protocol captures custody tax services gaps and non-custody tax reclaims as they arise, preventing delays or forfeiture. Automated task prioritization and notification helps meet dealines and boosts withholding tax recovery.
Operational
excellence and efficiency
Protocol automates custody tax data validation and reconciliation, and streamlines workflows — replacing manual spreadsheet analysis and reducing time spent on withholding tax recovery.
Comprehensive
oversight and control
All custody tax data is continuously validated and consolidated in a single source of truth. Monitor recovery progress, track every reclaim, and access the full history of your global withholding tax position whenever you need it.
Services
Custody tax oversight and global withholding tax reclaim
A comprehensive withholding tax recovery strategy has two components: ensuring your custodian's recovery service is performing as it should, and pursuing the reclaim opportunities your custodian does not cover. We help institutional investors and asset managers with both, powered by Protocol.
Global withholding tax reclaim
Protocol identifies the non-standard withholding tax opportunities that fall outside the scope of your custodian's service offering.
Insights
Show all insights Practical global withholding tax insights
Stay updated on global withholding tax changes, rates, treaties, reclaim opportunities, and case law.
APRIL 29, 2026 • 7 minute read
Belgium Dividend Withholding Tax: Rates & Reclaims
Learn Belgium dividend withholding tax rates, treaty relief, and how to reclaim excess WHT. Understand procedures, deadlines, and key requirements.
Knowledge hub
MARCH 1, 2026 • 4 minute read
CJEU Case C-241/25: Why Sweden’s Withholding Tax Rules for Loss-Making Companies Could Face a Major EU Law Challenge
On 10 February 2026, the Grand Chamber of the Court of Justice of the European Union (CJEU) heard oral arguments in Case C-241/25, a potentially significant development for EU-based investors with exposure to Swedish equities. The case concerns whether Sweden can require foreign companies to recalculate their tax position under Swedish rules before reclaiming dividend withholding tax (WHT).
Tax news
FEBRUARY 16, 2026 • 4 minute read
Beyond "Magic Certificates": The CJEU curbs formalistic proof requirements for non-resident pension funds
Accessing withholding tax exemptions in the European Union has long been a struggle of substance versus form. While EU law prohibits discrimination against non-resident investors, member states often implement "paperwork walls" that make relief technically possible but practically impossible to achieve.
Tax news
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