How to safely end a rolling periodic tenancy mid-term?

FTR

Let's see the email and the wooly wording, and you can get some opinions on whether it's good enough. 

As.yiull pay partial rent from for the final month, it boils down to whether the email is good enough to rebut a potential claim on your deposit. 

Slithery

tourist4ever said:

If you know what date you are leaving you can calculate the rent yourself  and only pay up to the date you have mutually agreed to leave

monthly rent x 12 / 365 is daily rent. then multiply by as many days you are staying.

Unless the LL agrees to a mutual surrender the OP is legally liable to pay rent until the 9th of September.

tornado99

Thanks for the responses. I got the landlord to explicity state in an email the exact amount of my final rent payment (which works out as the monthly rate pro rata for 15 days).

So I don't think I need any signed agreements or mutual surrender.