Yes, for the checking. An AI agent can test each self-certification for completeness, check tax numbers against expected formats, and compare the declared residence with what the firm already holds, such as addresses and phone numbers. Where they disagree, it flags the conflict and drafts a request to the customer. A person decides conflicts and what is reported.
What is being checked, and why?
International regimes for the automatic exchange of financial account information require financial institutions to collect a self-certification of tax residence from account holders, and to check it is reasonable against the information they already hold. If the firm has reason to know a self-certification is wrong, it cannot simply rely on it.
That check is high volume and repetitive: every new account, every change in circumstances, and periodic reviews of existing customers. It is also exacting. A missing country, a malformed number or an address in a different country from the declared residence all need action.
What may the agent do, and what stays with a person?
| Check | The agent does | Depth | Stays with a person |
|---|---|---|---|
| Completeness | Confirms every required field, signature and date is present | 3 | Accepting a form with a known gap |
| Tax number format | Checks the number matches the expected pattern for the country | 3 | Accepting a stated reason for no number |
| Reasonableness | Compares declared residence with address, phone, place of birth and standing instructions | 2 | Deciding whether the explanation resolves a conflict |
| Change in circumstances | Spots new indicators, such as an address change abroad | 2 | Deciding whether a new self-certification is needed |
| Customer contact | Drafts a request for clarification or a new form | 2 | Approving unusual requests |
| Reportable status | Proposes the status with evidence | 2 | Deciding the status |
| Record | Files each check and its outcome | 3 | Reviewing samples |
The agent stays at depth 2 wherever judgement is involved. Format and completeness checks are mechanical and can run at depth 3 within clear rules.
Where are the difficult cases?
Multiple residences. Some customers are tax resident in more than one country. The form should list each, and the agent should check that indicators for each are consistent.
Plausible explanations. A customer may hold an address abroad for a holiday home, or a foreign phone number from a previous job. The agent should not judge whether an explanation is good enough; it should present the conflict and the explanation to a person.
Entities. For business accounts, the checks extend to the entity's classification and, in some cases, its controlling persons. These are more complex and often need a specialist.
Stale indicators. Old addresses that were never removed from the system can trigger false conflicts. The agent should show the date of each indicator, so the reviewer can tell old from new.
An illustrative example
Take a private bank reviewing self-certifications for new accounts opened in the previous month. The agent checks each form.
Most pass. One customer declares residence only in the bank's home country, but the account record shows a mailing address in another country, added two weeks after opening. The agent flags the conflict, notes the date of the address change, and drafts a letter asking the customer to confirm their tax residence or provide a new self-certification. Another customer has a tax number that does not match the expected format for the declared country; the agent flags it as a likely typing error and drafts a request. The operations analyst approves both letters. When the first customer replies that the foreign address is a second home and they remain resident only at home, the analyst decides the explanation is reasonable, records why, and closes the conflict.
Should another agent check this agent's work?
A second agent can sample the first agent's checks for consistency, which is useful for catching rule drift. It does not replace a person's review of conflicts and status decisions. The question is covered in whether one AI agent can check another agent's work for compliance. It is also worth checking that the procedures the agent follows still match the firm's policy; see how to check procedures against policy with an AI agent.
How does this differ from other tax work?
Tax residency checks are about customers' status for reporting. They are separate from the firm's own tax returns, though agents help there too; see whether an AI agent can prepare VAT or sales tax returns and how to prepare corporate tax provision workpapers with an AI agent. The common thread is that the agent prepares and a person signs off.
What controls make it safe?
- Rules for each check written down and tested on past forms before go-live.
- Indicators shown with dates and sources, so reviewers can see what triggered a flag.
- No change to reportable status without a named person's decision.
- Customer contact within approved templates.
- Every check filed, including those that passed, so the firm can show it looked.
The wider principle is in AI compliance agents: second line, never the last word.
Questions people ask
Can the agent accept a self-certification on its own?
For a complete form with no conflicts and a valid number format, it can mark the checks as passed. The firm should decide whether that is enough for acceptance or whether a person confirms.
What if the customer does not reply to a request?
The agent tracks the deadline and escalates. What happens next, such as restricting the account or reporting on available information, is a person's decision under the firm's procedures.
Can the agent read scanned forms?
Yes, but scanned forms need extra checks, such as confirming the signature is present and legible. Unclear scans should go to a person.