IntegraLynx for Withholding Tax
IntegraLynx delivers end-to-end calculation and reporting for withholding tax on investment holdings and withdrawals for ultra high net worth clients. When your firm acts as the withholding tax agent, IntegraLynx ingests positions, transactions and client attributes from core books and records, custodians and pricing sources, then calculates the correct tax at source. It produces regulator-ready returns and submission files for national revenue authorities, and writes final tax figures back to your core administration platform so downstream ledgers, statements and performance reporting stay in sync.
Real-Time Net Outcomes for Improved Investor Experience
Investors and advisers want certainty at the point of decision. Our simulation API lets you project gross and net proceeds for proposed withdrawals in seconds, taking account of residency, treaty reliefs, asset tax treatments and current year allowances. This can be surfaced directly in your adviser and client portals so investors see their net position in real time. In the UK, for example, IntegraLynx models the 5% tax-deferred withdrawal allowance on investment bonds under the chargeable events regime so advisers can structure withdrawals efficiently.
Coverage Today, Built for Tomorrow
Out of the box, IntegraLynx supports the UK, Ireland, France, Spain, Portugal and Italy. Rules vary by country and asset type, which is why the calculation engine codifies local treatments and paperwork. For instance, UK rules require withholding on many UK-source interest payments, subject to treaty or domestic exemptions. Italy introduced stamp duty changes for insurance-linked contracts effective 2025. IntegraLynx is updated automatically as rules change, with jurisdiction packs versioned and auditable.
Advisory Logic and Client-Friendly Insights
Beyond compliance, IntegraLynx helps advisers optimise outcomes. The rules engine can suggest tax-beneficial withdrawals and sequencing, such as using the UK 5% allowance on eligible bonds before drawing from more heavily taxed sources, or recognising local exemptions and treaty rates where applicable. Country-specific explanations translate complex logic into clear, client-friendly language that advisers can share in reports or portal views. This reduces rework, improves client confidence and shortens decision cycles.
Trust Is Key
We need to be able to trust the system to process the data correctly. We trust Resolve because they really understand what we need to do.”
Head of Technology, Dublin-based life assurance client.
Reporting, Submissions and Audit Trail
Regulatory reporting is generated from a single, reconciled data set with full lineage from raw source to submitted figure. Every calculation is explainable, with parameter snapshots, treaty lookups, rate tables and calculation steps preserved for review. Workflow controls, four-eyes approvals and segregation of duties are standard. Submission statuses, acknowledgements and error messages are tracked to completion, with alerts to resolve exceptions fast.
Connectivity, Controls and Performance
IntegraLynx is built to connect. It offers robust APIs, secure file interfaces and native connectors to common wealth and custody platforms. Data quality gates validate identifiers, residency, relief eligibility and beneficial ownership. Position and cash reconciliations keep calculations grounded in reality. The engine is event-driven and scalable, so daily withholding, quarter-end peaks and large-scale backfills complete within service windows. All traffic is encrypted, with full audit logs for internal and external review.