> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.365werk.nl/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Where can I change my payroll tax reduction?

![](https://storage.crisp.chat/users/helpdesk/website/7970f30b04707400/laura-klein_b03j1.png)

If you want to change your payroll tax reduction, you can do this via your [portal](https://flexapp.365werk.nl/account/#financiele-gegevens) under the heading 'financial details'. We will then prepare a form for you and upload it to your online account. As soon as you have signed this (online), we can switch the payroll tax reduction on or off for you. We can only change the payroll tax credit as of a date that we have not yet paid to you.