CRO 760497 is not a VAT number, and Anthropic Ireland is not the seller on your Claude invoice yet.

As of April 2026, no VIES-validatable Irish VAT number has been published for Anthropic Ireland, Limited. The entity exists in the Irish Companies Registration Office under CRO number 760497 (registered 22 March 2024 at 6th Floor South Bank House, Barrow Street, Dublin 4), but a CRO number is a company registration identifier, not a VAT ID. Irish VAT numbers follow the format IE plus 7 digits plus 1 or 2 letters and are published through VIES, which is a separate register from the CRO.

No. CRO 760497 is the Irish Companies Registration Office company number for Anthropic Ireland, Limited. It proves the company exists and is in good standing in Ireland. Irish revenue authorities issue a separate VAT number, in the format IEXXXXXXXL or IEXXXXXXXLL (seven digits plus one or two letters, prefixed by IE), that must be validated in the EU VIES system to be used on a B2B invoice. The two numbers do not match, overlap, or derive from each other.

Because Claude billing (both claude.ai and console.anthropic.com) still lists Anthropic, PBC at 548 Market St, PMB 90375, San Francisco, CA 94104 as the seller on invoices to EU customers. VAT is collected under the non-resident digital services scheme and handled by Stripe Tax, with remittance under an OSS-style registration. The Dublin entity is Anthropic's operational EMEA subsidiary; it has not yet replaced the US parent as the invoicing entity on Claude billing in the EU.

Anthropic Ireland, Limited was incorporated on 22 March 2024 as an Irish private company limited by shares, CRO number 760497. The registered office is 6th Floor, South Bank House, Barrow Street, Dublin 4, Dublin, Ireland, which is the Mason Hayes and Curran corporate services address. The company is classified under NACE code 62.09 (Other Information Technology and Computer Service Activities) and has one shareholder on record per the Irish Companies Registration Office.

If the invoice you hold lists Anthropic, PBC (San Francisco) as the seller, as every current EU Claude invoice does, the supplier is not an Irish VAT-registered entity and you should not enter an IE-prefixed VAT ID. Most EU AP teams pick one of three treatments: record the supplier as a non-EU taxable person with the OSS non-resident scheme flag, leave the supplier VAT field empty and attach the PDF with a reverse-charge note, or record Anthropic's US HQ address and the EU Transparency Register ID 511227350325-42 as supporting identifiers. The CRO number 760497 is useful in a 'company registration' field but not a 'VAT number' field. Confirm the final treatment with a local tax advisor.

Use the EU Commission's VIES service at ec.europa.eu/taxation_customs/vies/. Enter IE as the member state and the full IE-prefixed number as the VAT number. A valid response will show the registered trading name and address on that VAT ID. VIES is the authoritative source; accounts payable systems that validate supplier VAT numbers in real time all ultimately call VIES under the hood. If the lookup fails, the number is not an active Irish VAT registration, regardless of what it says on any third-party listing site.

No. They are three distinct legal entities in the Anthropic group. Anthropic, PBC is the Delaware Public Benefit Corporation and the US parent. Anthropic Limited is the UK subsidiary at 9th Floor 107 Cheapside, London EC2V 6DN, UK Companies House 14604577, incorporated 19 January 2023. Anthropic Ireland, Limited is the Irish subsidiary at 6th Floor South Bank House, Barrow Street, Dublin 4, CRO 760497, incorporated 22 March 2024. Each has its own registration number, its own address, and its own potential tax obligations under local law. None of those three numbers is a VAT number by itself.

Yes. Fazm is a consumer Mac app that reads the macOS accessibility tree through AXUIElement rather than taking screenshots, so it can navigate console.anthropic.com, claude.ai billing, and any Stripe-hosted invoice page as structured data (buttons, table rows, input fields, exact text values). A plain-English instruction like 'open my Claude billing, download the last three invoices, and extract the seller name, seller address, and any VAT ID shown' will drive the browser, Finder, and your accounting app together through real accessibility APIs. It works with any Mac app, not just the browser, and it is a finished consumer app, not a developer framework.