---
title: "Initiate a UPA pension declaration"
method: POST
path: "/v2/providers/employers/payrolladministrations/{payrollAdministrationId}/externalparties/{externalPartyKey}/upapensiondeclarations/initiate"
tags: ["Upa pension declaration"]
---

# Initiate a UPA pension declaration

`POST /v2/providers/employers/payrolladministrations/{payrollAdministrationId}/externalparties/{externalPartyKey}/upapensiondeclarations/initiate`

__Activity name :__ <a href="https://developer.loket.nl/Activities/PostInitiateUpaPensionDeclarationByPayrollAdministrationIdAndExternalPartyKey" target="_blank">PostInitiateUpaPensionDeclarationByPayrollAdministrationIdAndExternalPartyKey</a>

Initiate the pension declaration for the next available period for the payrolladministration. Information about the next available periode can be obtained using the defaults endpoint (/defaults) 

* Defaults endpoint can be accessed at the path `.../payrolladministrations/{payrollAdministrationId}/externalparties/{externalPartyKey}/upapensiondeclarations/initiate/defaults`.

## Path parameters

- `payrollAdministrationId` string, uuid, required
- `externalPartyKey` integer, required

## Headers

- `Authorization` string, required
- `Accept` string, required

## Response `201`

Created

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `500` — Internal Server Error

---

[API](https://skmtc.net/loket-acc/apis/loket-api.md) · [All operations](https://skmtc.net/loket-acc/apis/loket-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/loket-acc/loket-api/revisions/b32a42be97f7/schema)