Two frameworks sit behind almost every tax status question a trading firm is asked. FATCA is United States legislation that reaches foreign financial institutions and asks them to identify and report accounts held by US persons, backed by a withholding mechanism applied to certain US source payments. The Common Reporting Standard, developed through the OECD and adopted by a large number of jurisdictions, does something structurally similar but multilaterally: participating jurisdictions collect account information from their financial institutions and exchange it automatically with the account holder's country of tax residence.
Neither is aimed at trading firms specifically. Both can capture them, and the classification question is where the work starts.
Are you a financial institution or an account holder?
This is the fork in the road. A firm that is a reporting financial institution has due diligence and annual reporting obligations of its own toward its own clients. A firm that is not one is simply an entity holding accounts elsewhere, and its obligation is to tell its banks and providers truthfully what it is.
The classification turns on function, not on branding. The categories in these frameworks include custodial institutions, depository institutions, investment entities and certain insurance companies. An entity that holds client money or financial assets for the account of others, or that trades in financial instruments or manages assets for customers as a business, is much closer to the investment entity or custodial categories than a firm that only sells software or education. The label a company gives itself does not resolve it. What matters is what the firm actually does with client money and client assets, which is why our note on client fund segregation is a useful companion read: the same facts that define segregation duties tend to inform the classification.
Prop firms sit in an interesting position and there is no single correct answer for all of them. A firm whose traders operate simulated accounts on the firm's own capital, with challenge fees as the revenue line, presents a different fact pattern from one that holds client deposits for trading. The analysis depends on the actual arrangements and needs a local adviser, but founders should not assume the question does not apply.
Descriptive only, not tax or legal advice. Classification under FATCA and CRS depends on the exact facts and on the implementing law of your jurisdiction. Do not self classify off a blog article.
Self certification is the mechanism you will meet first
Long before anyone files a report, a firm meets these rules through forms. Banks, payment institutions, liquidity providers and platform vendors all ask new corporate clients to certify their status. Under CRS that is usually an entity self certification naming the jurisdiction of tax residence, the tax identification number and the entity classification. Under FATCA it typically means a US form in the W-8 series for a non US entity, or the equivalent domestic questionnaire.
Two details cause most of the failures. First, passive entities. Where an entity is classified as passive, the framework looks through to its controlling persons and asks for their tax residence, which puts founders' personal tax details into the file. Firms designed with a chain of holding companies find themselves certifying not one entity but several, and the paperwork has to be internally consistent. Second, mismatches. A certification saying the entity is resident in one country, a licence issued in a second, a bank account in a third and directors resident in a fourth is not illegal, but it produces a review, and it is exactly the pattern that business verification teams are trained to escalate.
How this shows up in banking, and it does
Founders often notice these rules only when an account application slows down. The mechanism is straightforward. A bank cannot report what it cannot classify, and an unclassified or inconsistently classified corporate customer is a compliance exception sitting on someone's queue. Where the answers do not reconcile, the safest path for the institution is to ask for more documents, and the cheapest path is sometimes to decline. That is not a policy of any particular bank, it is the shape of the incentive, and it is part of the wider pattern described in why banks refuse brokers.
The same applies to the jurisdictional dimension. A firm registered in a jurisdiction that does not participate in automatic exchange, or that is on a list attracting extra scrutiny, will be asked more questions in more places, and the effect compounds through the payment chain. Reviewers reading a structure look for a reason the arrangement exists, and a structure whose only apparent function is to sit outside reporting reads badly to a human even where each element is lawful. The effects of listings on the payment chain are covered in FATF grey list impact.
If you are in scope, what the year looks like
A reporting financial institution runs a repeating cycle. It registers where registration is required, which under FATCA means obtaining a global intermediary identification number through the US registration process, and under CRS means registering with the local competent authority in the manner that jurisdiction sets. It applies due diligence procedures to new accounts, collecting self certification at onboarding and validating it against the rest of the account file. It reviews pre existing accounts under the rules for that category. Then it files annually to its own authority, which exchanges the data with counterpart jurisdictions.
The practical burden is almost entirely a data problem. Reportable information is account level: holder identity, tax residence and identification number, account number, balance or value at the reporting date, and certain payments. A firm that captured tax residence at onboarding and can produce a point in time balance per account files without drama. A firm that stored tax residence in a free text note and reconstructs balances from an export cannot, and this is the argument for treating tax status as a structured field in the client record from day one rather than as an attachment.
Penalty regimes differ, and the one exposure that is easy to underestimate is not a fine at all. It is the loss of a banking relationship. An institution that has asked twice for a consistent classification and not received one tends to stop asking.
"Half the founders I meet answer the FATCA question on a bank form in ten seconds and never think about it again. It is the one box on that form that can create an ongoing filing obligation."
— Roman Onta, Executive Director, SINGUARD
Key Takeaways
- FATCA and CRS both classify entities by what they do with client money and assets, not by what the company calls itself.
- A firm that is a reporting financial institution owes registration, due diligence and annual filing of its own, not just form filling.
- Self certification mismatches across residence, licence, banking and directors are a leading cause of slow or refused account applications.
- Capture tax residence and identification numbers as structured fields at onboarding, because reporting is an account level data problem.
Frequently Asked Questions
Is a prop firm a financial institution for CRS purposes?
There is no single answer. It depends on whether the firm holds client money or financial assets for others, or manages assets as a business, and on how the local implementing law defines the categories. A challenge fee model with simulated accounts presents different facts from a model holding client deposits, so this needs an adviser who can look at the actual arrangements.
What is a controlling person and why is the firm asked about them?
Where an entity is classified as passive under CRS, the rules look through the entity to the individuals who ultimately control it and ask for their tax residence, so their details end up in the account file. This is why holding structures generate more certification paperwork than a single company.
Does registering in a non participating jurisdiction avoid this?
It changes which authority is involved, but it does not remove the questions from the counterparties. Banks, payment institutions and liquidity providers apply their own risk ratings, and a structure that appears designed to sit outside exchange of information tends to attract more scrutiny in the payment chain, not less.
About the Author
Roman Onta is an Executive Director at SINGUARD. He builds the Prop Firm CRM, the Broker CRM, Scalegram and CopySignals side by side with his brother Alex Onta, and he helped on the design of eTrader, the division Alex built and leads. His ground is worldwide payment processing, AML compliance and the corporate structures brokers are built on, work the two of them carry together, shaped by executive roles in the UAE and international corporates. He lives and works in Dubai for most of the year. Meet the executive duo leading Singuard's five divisions.