Client Tax Operations - Securities Services US Tax Withholding Associate

Join a team where data rigor meets real-world impact in global Securities Services.

As a US Tax Withholding Associate, you'll turn complex IRS rules into precise, audit-ready outcomes-driving accurate withholding, airtight controls, and year-end reporting at scale.

Partner across Tax, Technology, and Client Service to automate data quality, resolve cross-border scenarios, and reduce risk for clients across asset classes.

The US Tax Withholding Associate supports end-to-end withholding and information reporting for US source income across Securities Services client accounts, with a heavy focus on manipulating and validating large, complex data sets to ensure accuracy and strong control outcomes.

The associate will apply IRS Chapters 3 and 4 rules, review tax documentation (W-8/W-9), execute withholding and deposits, and support year-end reporting (1042-S/1099).

Success in this role requires exceptional attention to detail, rigorous adherence to control procedures, and comfort working with high-volume transactional data.

Job responsibilities:


* Extract, transform, and reconcile large data sets from custody, tax engines, and documentation systems; build repeatable workflows that enhance data quality and lineage.


* Perform data validations, outlier detection, and exception handling across high-volume income events and client populations; document assumptions and control evidence.


* Calculate and apply US nonresident (Chapter 3) and FATCA (Chapter 4) withholding on US source income events across asset classes and account types, ensuring rate accuracy per documentation and treaty eligibility.


* Reconcile withholding accruals versus remittances; support timely federal tax deposits and payment processes; maintain audit-ready trails for all adjustments and exceptions.


* Support preparation and quality control for Forms 1042-S, 1099, and 1042, including data validation, corrections, and amendments; manage high-volume file generation and reconciliation checkpoints.


* Execute year-end and interim reporting timelines with precision, ensuring reconciled totals, error-rate thresholds, and complete audit trails.


* Execute daily control checks, tolerance-based reconciliations, and root-cause analysis; raise issues promptly and drive remediation with documented evidence and sustainable fixes.


* Maintain and enhance SOPs/runbooks, embedding preventive and detective controls in data workflows.


* Partner with Client Service, Tax Product, and Technology to resolve client queries and complex withholding scenarios; communicate data-driven findings clearly and succinctly.


* Translate regulatory/tax requirements into operational steps and control points; support UAT and production validation for tax engine and documentation platform changes.

Required qualifications, capabilities and skills:


* Bachelor's degree in Accounting, Finance, Business, Economics, Data/Information Systems, or related field; or equivalent ...