Tax Compliance Glossary: FATCA, CRS & Withholding Terms
Navigate the complex language of global tax compliance with our comprehensive glossary. Explore clear definitions covering FATCA, CRS and AEOI, U.S. tax reporting, withholding, tax documentation and the technology used to manage tax compliance.
Explore Terms By Topic
Tax Documentation
Explore key tax documentation terms and definitions, including tax forms, certifications, documentation requirements and compliance terminology.
FATCA
Explore key FATCA terms and definitions covering financial institutions, entity classifications, reporting, withholding and FATCA compliance requirements.
Entity Classification
Explore key entity classification terms and definitions used in tax compliance, including entity types, tax status and FATCA classifications.
Tax Identification Numbers
Explore Tax Identification Number (TIN) terms and definitions, including U.S. TINs, EINs, SSNs, ITINs, FTINs and related tax terminology.
Compliance Technology
Explore tax compliance technology terms and definitions covering automation, APIs, AI, OCR, data validation and digital compliance solutions.
U.S. Tax Reporting
Explore key U.S. tax reporting terms and definitions covering Forms 1099, 1042 and 1042-S, IRS reporting requirements and filing processes.
CRS / AEOI
Explore key CRS and AEOI terms and definitions covering tax residency, reportable accounts, due diligence and international information exchange.
Withholding
Explore key tax withholding terms and definitions covering withholding agents, rates, U.S.-source income, tax treaties and Chapters 3 and 4.
Manage Tax Documentation in One Secure Platform
We offer a comprehensive product suite to support you throughout your tax compliance journey, from IRS form collection to error management and validation.
Automated IRS Form Collection & Validation
Comply eForms helps organizations streamline the collection of IRS tax forms and self-certifications from vendors, customers, investors, and other payees. All through a fully configurable, compliant, and intuitive digital experience.
Secure IRS Tax Form Validation, Storage & Management
Comply Admin centralizes the full lifecycle of tax documentation, from collection and digitization to validation, storage, and ongoing management. Whether you’re working with IRS Forms W-9, W-8, self-certifications, withholding statements, or supporting documentation, Comply Admin provides a single, secure source of truth.
Turning Complexity into Clarity
The Comply Extractor addresses one of the most challenging aspects of global reporting: extracting and reconciling data from non-standardized withholding statements and tax forms, including substitute forms.
Automated IRS Form Collection & Validation
Comply eForms helps organizations streamline the collection of IRS tax forms and self-certifications from vendors, customers, investors, and other payees. All through a fully configurable, compliant, and intuitive digital experience.
With built-in real-time validation and intelligent workflows, your team maintains complete control over tax data without the burden of manual follow-ups or form reviews. At the same time, end users are guided through a seamless submission journey, answering only the questions relevant to them based on their status and IRS form type.
Secure IRS Tax Form Validation, Storage & Management
Comply Admin centralizes the full lifecycle of tax documentation, from collection and digitization to validation, storage, and ongoing management. Whether you’re working with IRS Forms W-9, W-8, self-certifications, withholding statements, or supporting documentation, Comply Admin provides a single, secure source of truth.
Used as a standalone solution or alongside Comply eForms and Extractor, Comply Admin simplifies compliance operations by keeping all critical tax documentation organized, auditable, and easily accessible.
Turning Complexity into Clarity
The Comply Extractor addresses one of the most challenging aspects of global reporting: extracting and reconciling data from non-standardized withholding statements and tax forms, including substitute forms.
Powered by AI, the Extractor reads, interprets, and structures data from virtually any format, eliminating rigid templates and manual keying. It automatically identifies income codes, rate pools, and allocation hierarchies, validating the data against applicable withholding rules.