W-9 parser API

Send any signed Form W-9 PDF. Get legal name, business name, TIN, entity classification, address, and signature date as typed JSON.

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Sample invoice

W9-WONKA-2026

2026-03-04

Due 2026-03-04

From

Wonka Industries LLC

Bill to

Globex Industries

SKU	Description	Qty	Amount
LEGAL-NAME	Willy Wonka	1	$0.00
ENTITY	Limited liability company · LLC tax class C	1	$0.00
TIN	EIN ••-•••7821	1	$0.00

Extracted schema

The fields AP teams expect.

legal_name

Name as shown on the income tax return.
business_name

DBA or trade name, if different.
entity_type

Individual, sole proprietor, LLC, C-corp, S-corp, partnership, trust.
llc_tax_class

C, S, or P — only present when entity_type is LLC.
tin

Taxpayer identification number (SSN or EIN).
tin_type

ssn or ein.
address

Street address, city, state, ZIP.
exempt_payee_code

Optional exempt payee code.
signature_date

ISO date the form was signed.

Sample JSON

One invoice in. One row out.

{
  "document_type": "w9",
  "legal_name": "Willy Wonka",
  "business_name": "Wonka Industries LLC",
  "entity_type": "LLC",
  "llc_tax_class": "C",
  "tin_type": "ein",
  "tin_last4": "7821",
  "signature_date": "2026-03-04"
}

FAQ

Does it work on scanned W-9s?

Yes. OCR runs automatically. The TIN field is preserved exactly — no fuzzy matching.

Does it pull the signature image?

No — only the signature date is extracted. Signature image and verification are out of scope.

How is this priced?

Extraction is priced per page. The free tier covers the first 100 pages.