FATCA & CRS
FATCA and CRS: What Every Fintech Needs to Know in 2026
FATCA and CRS are not only bank problems. Many fintechs need to understand classification, due diligence and reporting workflows.
01 February 2026 · MCS Editorial Team
FATCA and CRS are two of the most misunderstood compliance topics for fintech founders. They sound like tax rules that only banks should worry about. In reality, many fintechs, investment platforms, wallet businesses, wealth products and payment firms can face classification, due diligence or reporting questions because they hold accounts, facilitate financial assets or support cross-border customers.
FATCA is the United States Foreign Account Tax Compliance Act. Its goal is to identify accounts held by US persons outside the United States. CRS, the Common Reporting Standard, is an OECD framework used by many jurisdictions to exchange information on reportable financial accounts. The regimes are different, but the operating problem is similar: determine whether the entity is in scope, identify reportable accounts, collect self-certifications, perform due diligence and support reporting.
Why Fintechs Get Caught
Fintech products often blur traditional boundaries. A company may describe itself as a software platform, but its product may involve stored value, investment wallets, nominee arrangements, custody, brokerage rails or financial accounts. That can trigger questions about whether the business is a financial institution for FATCA or CRS purposes.
The answer depends on facts. Revenue mix, asset activity, account features, customer rights, product structure, jurisdiction and legal entity role all matter. A simple label such as “fintech” or “SaaS” is not enough.
Core Obligations
The first obligation is classification. The business must determine its FATCA and CRS status. Common categories include financial institution, active non-financial entity and passive non-financial entity. If a business is a financial institution, it may need to register, collect tax residency information, perform account due diligence and report certain accounts.
The second obligation is customer due diligence. Firms need reliable processes for obtaining self-certifications, validating reasonableness and identifying indicia that conflict with customer declarations. If the onboarding journey does not capture the right information, reporting becomes almost impossible later.
The third obligation is recordkeeping. FATCA and CRS reviews are evidence-heavy. Firms need to show what they collected, when they collected it, how they assessed it and what follow-up occurred when information was incomplete or inconsistent.
The fourth obligation is reporting. Reporting formats and deadlines differ by jurisdiction. Even where a firm relies on a partner or administrator, management should understand who files, what data is used, and how errors are corrected.
Common Mistakes
The most common mistake is assuming a banking partner handles everything. A partner may perform some account-level work, but your entity can still have classification, documentation and contractual obligations.
The second mistake is collecting tax residency information in a free-text box without validation. Poor data capture creates manual remediation work and weakens audit evidence. A structured self-certification workflow is far better.
The third mistake is treating FATCA and CRS as annual reporting tasks. Readiness starts at onboarding. By the time the reporting deadline arrives, missing self-certifications and unclear entity classifications can be expensive to fix.
The fourth mistake is not maintaining an obligation map by jurisdiction. A fintech operating across the UK, EU, Singapore and UAE needs a clear view of which entity has which obligation in which market.
Practical First Steps
Start with an entity classification assessment. Document the reasoning and keep it updated as products evolve. Next, map account types, customer categories and data fields. Then review onboarding forms, self-certification language, validation rules and exception handling.
After that, build a reporting calendar and assign owners. The calendar should include data extraction, quality review, filing deadlines, correction windows and board reporting. Finally, maintain an evidence file with policies, procedures, data samples, issue logs and prior filings.
How MCS Can Help
MCS provides FATCA and CRS readiness assessments for fintechs and financial firms. We map obligations, review current processes, identify data gaps and produce a remediation roadmap with templates. The goal is not to overcomplicate reporting. It is to make sure the firm can explain its status, collect the right information and meet deadlines without panic.