put
https://{environment}.masspay.io/{VERSION}/payout//tax/form1099nec
This PUT endpoint is used to update or correct a previously submitted Form 1099-NEC (Nonemployee Compensation) for a specific user identified by their user_token. The system automatically determines whether to perform an Update (if the form has not yet been accepted by the IRS) or a Correction (if the form has already been accepted by the IRS). Basic information (name, address, email, phone, TIN) is retrieved from the user's existing profile.
To use this endpoint, you need to provide the user_token as a parameter in the URL Path, the original submission_id, and the updated 1099-NEC form data in the request body. For corrections after IRS acceptance, you can specify the correction_type as VOID, RECIPIENT, AMOUNT, or RECIPIENT_AMOUNT.
