API Reference

Submit W-8ECI tax form

post
https://{environment}.masspay.io/{VERSION}/payout//tax/interview/w8eci

This POST endpoint is used to submit a W-8ECI tax form (for foreign persons claiming income effectively connected with US trade or business) for a specific user identified by their user_token. Basic information (name, address, phone) is retrieved from the user's existing profile.

Recent Requests
Log in to see full request history
TimeStatusUser Agent
Retrieving recent requests…
LoadingLoading…
Path Params
string
required
Body Params
string
length ≤ 75

Trade name (DBA)

string
required
length between 2 and 2

Two-letter country code of organization

string
enum
required

Type of entity

string
enum
required

Type of US TIN

Allowed:
string
required

US Taxpayer Identification Number

string
length ≤ 25

Foreign Tax Identification Number

boolean
Defaults to false

Check if FTIN is not legally required

us_business_address
object
required
string
length ≤ 50

Reference number for your records

string
required
length ≤ 200

Description of income items effectively connected with US trade/business

boolean
Defaults to false

Is dealer in securities or transferor of PTP interest

string
required
length ≤ 65

Name of the person signing the form

Responses

404

Not Found

Updated 16 days ago

Did this page help you?
Language
Credentials
URL
LoadingLoading…
Response
Click Try It! to start a request and see the response here! Or choose an example:
application/json

Updated 16 days ago

Did this page help you?