Submits the authenticated employee's US federal tax (W-4) details.

Available for US Global Payroll employees once they reach the
post-enrollment state. Calls made before then return a 404.

This endpoint requires country-specific data. Query the
Show form schema endpoint with global_payroll_federal_taxes
as the form name to discover the schema for a given country.

Authentication

This endpoint accepts any one of the following token types:

• Employee-scoped access token (OAuth2Assertion) — obtained through the urn:ietf:params:oauth:grant-type:jwt-bearer grant. See OAuth Assertion.
• Company-scoped access token (OAuth2AuthorizationCode) — obtained by the employee through the Authorization Code flow or the Refresh Token flow. See Authentication for partners.

Scopes

Any one of the scopes in a token type's row is enough. all:write works too.