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Form W-9 (US Person)

US Person / Green Card holder · used for Thai bank FATCA reporting · 1099 issuance · Brokerage onboarding

From THB 3,5001-2 days drafting + 5-14 days MFA/Apostille
083-249-4999 Chat on LINE

NYC Legal's tax team has prepared 2,400+ Form W-9 (US Person) packages over 8 years, from bank self-certifications to FinCEN BOI filings.

Dedicated runners at the Revenue Department, BOI, AMLO, FinCEN portal, HMRC e-services, and Companies House.

Preparation at US Person / Green Card holder takes 1-2 working days at 1,500-3,000 บาท. NYC Legal handles intake, residency analysis, drafting, certification, and filing.

Translation to the destination language is then required — English (US/UK/AU/CA/NZ/SG/HK), German (BZSt), French (DGFiP), Japanese (NTA), Dutch (Belastingdienst).

Our 14-country tax-counsel network (US CPA, UK CTA, German Steuerberater, French Expert-comptable, Japanese 税理士) confirms that the Form W-9 (US Person) is used to its full treaty benefit.

First-pass acceptance at destination authorities: 97-99%.

Coverage

🇺🇸 for United States
IRS / FinCEN
🇬🇧 for United Kingdom
HMRC + Companies House
🇦🇺 for Australia
Australian Taxation Office (ATO)
🇨🇦 for Canada
Canada Revenue Agency (CRA)
🇳🇿 for New Zealand
Inland Revenue Department (IRD)
🇩🇪 for Germany
Finanzamt + Federal Central Tax Office
🇫🇷 for France
Direction générale des Finances publiques (DGFiP)
🇯🇵 for Japan
National Tax Agency (NTA)
🇸🇬 for Singapore
Inland Revenue Authority of Singapore (IRAS)
🇭🇰 for Hong Kong
HK Inland Revenue Department
🇨🇭 for Switzerland
Federal Tax Administration (ESTV)
🇳🇱 for Netherlands
Belastingdienst
🇮🇹 for Italy
Agenzia delle Entrate
🇦🇪 for United Arab Emirates
UAE Federal Tax Authority (FTA)

How it works

  1. 1

    Intake & residency analysis

    Income sources, day-count, accounts/entities, UBO map, treaty-relief targets.

  2. 2

    Prepare Form W-9 (US Person)

    Completed by Thai/destination tax adviser with parallel-language QA (1-2 days).

  3. 3

    Notarial / Notary

    Notarial Services Attorney when required by the withholding agent or destination tax authority.

  4. 4

    Translate & certify

    Registrar-listed translator with FATCA/CRS/DTA glossary.

  5. 5

    MFA + Apostille / embassy

    MFA Chaeng Wattana → Apostille (Hague) or destination embassy (2-7 days).

  6. 6

    File & track

    Submit to withholding agent, financial institution, or destination tax authority + follow-up to confirmation.

Frequently asked questions

How long is the document valid?

W-8BEN valid 3 calendar years post-signature · TRC 1 calendar year · CRS/FATCA self-cert re-issued on change of status.

Where can it be used?

Thai bank FATCA reporting, 1099 issuance, Brokerage onboarding

Total cost?

1,500-3,000 บาท + translation + MFA + Apostille/embassy depending on destination.

Do I need a Thai and a foreign TIN?

Usually yes — Thai TIN (13-digit) + foreign TIN (SSN/NINO/ABN/TFN/etc.).

Non-compliance penalties?

FATCA/CRS misreporting: USD 10,000-50,000 per account · FinCEN BOI failure: USD 591/day (cap USD 10,000) + 2 years criminal.

Thai late-filing penalty?

2% per month of unpaid tax + civil surcharge 1-2x per Sec.27 Revenue Code.

How much does the treaty save?

Dividend: 10-15% treaty vs 30% US domestic · Royalty: 5-15% vs 30% · Interest: 10-15% vs 30%.

When is it operational?

1-2 days for preparation + 5-14 days for MFA/Apostille/embassy.

Related services

Form W-8BEN (Individual) Form W-8BEN-E (Entity) FATCA Self-Certification CRS Self-Certification Tax Residency Certificate (TRC) Withholding Tax Reduction Application (RD Form 17) MFA Legalization Notary Public