# How does the data retention work?

**URL:** <https://community.piwik.pro/t/how-does-the-data-retention-work/1799>\
**Category:** Reports and working with data\
**Created:** [March 13, 2023, 10:06am UTC](https://community.piwik.pro/t/how-does-the-data-retention-work/1799 "2023-03-13T10:06:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BT\_nista](https://avatars.discourse-cdn.com/v4/letter/b/aca169/32.png) [@BT\_nista](https://community.piwik.pro/u/BT_nista)\
**Post date:** [March 13, 2023, 10:06am UTC](https://community.piwik.pro/t/how-does-the-data-retention-work/1799/1 "2023-03-13T10:06:13Z")

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Hi.  
I also have a question on the data retention.  
First, where can I see the data retention period? It’s 14 months, but starting when?  
Secondly, do I understand correctly that I lose the complete last 14 months or is it “rolling”?

E.g.: I started using PIWIK on the 10th of March 2022 → 14 months later (10th of May 2023) I lose all the data I have in the system and start completely “fresh” (everything to 0) on the 11th of May?  
Or do I start to lose the data gradually, starting with the 10th of March 2022, next day I’m losing the 11th of March 2022 and so forth?

Thanks in advance.

Best regards,  
Barbara

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**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\
**Post date:** [March 13, 2023, 8:22pm UTC](https://community.piwik.pro/t/how-does-the-data-retention-work/1799/2 "2023-03-13T20:22:00Z")

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Hi. Here is more on the data retention topic: [For how long does Piwik PRO retain data? | Piwik PRO help center](https://help.piwik.pro/support/questions/for-how-long-does-piwik-pro-retain-data/)

The counter starts the moment you send the first event. When it comes to data deletion, it’ll be done gradually, deleting month by month. So you will always have access to data for at least the last 14 months.

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**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\
**Post date:** [March 14, 2023, 12:35pm UTC](https://community.piwik.pro/t/how-does-the-data-retention-work/1799/3 "2023-03-14T12:35:57Z")

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Linked article has been updated to include all the details you asked about. Hope it helps!

> **[For how long does Piwik PRO retain data? | Piwik PRO help center](https://help.piwik.pro/support/questions/for-how-long-does-piwik-pro-retain-data/)**
>
> We store your visitor data for the period available in your plan. In the Core plan, you always have access to data from the last 14 months. In the Enterprise plan, you have access to data from the last 25 months or a custom period. The retention...