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Download the official receipt for a tax report

get
https://api-staging.b2brouter.net/tax_reports//download_response

Download the Official Receipt of Acknowledgement received from the Tax Authority after successfully submitting a tax report.

This endpoint is primarily used for KSeF (Polish tax reporting system) to retrieve the official acknowledgement (UPO) from the tax authority. The UPO serves as proof that the invoice was successfully received and registered by the Polish Ministry of Finance.

Note: The UPO is only generated when the invoice is successfully accepted by KSeF. If the tax report is in error state, this endpoint will return the error reason from the tax authority.

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Path Params
integer
required

A unique internal identifier of the Tax Report in B2Brouter.

Headers
string
Defaults to 2026-04-20

Specifies the version of the API to use in this request. If not specified uses the API-Version set in the group conifguration B2Brouter UI Application -> Developers -> API Keys -> API Version

string
enum
Defaults to application/json

Generated from available response content types

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Responses

204

No Content - The tax report has no UPO available yet (still processing or not sent)

Updated 22 days ago

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Updated 22 days ago