A S21 notice does not end the tenancy- it is simply a notice that the LL gives you to say they intend to seek possession. Only a court can legally end the tenancy - so if you do move out without giving correct notice- you could find yourself still having to pay the rent (unfair as this seems)
Here are the ways to end your tenancy so you are no longer liable to pay rent.
- If you are in a fixed term contract- check to see if there is a break clause which will tell you how you can end the tenancy early.
2)If you and the LL agree to a date to leave, this is known as a mutual surrender and is absolutely fine, no-one else has to be involved and no "notice" is required whatever phase of the contract you are in.
Make sure you get the agreement in writing and ensure the LL agrees to a date that you rent liability will end.
- If you are on periodic or rolling contract (not fixed term) then the notice you have to give to end your liability for rent will depend on 2 things.
a) If it is contractual periodic you will need to give notice according to what is stated in the contract so for example -if it says 2 months then that is what you need to give.
b) If it statutory periodic, then you will only need to give what the law says. So 1 months notice ending on the first or last day of the Tenancy period. NOT the rental period as PP has advised.
If your agreement states something along the lines of "at the end of the fixed term, this agreement will continue on a month to month or periodic basis"- then you have a contractual periodic agreement and a applies.
If your agreement says nothing about what will happen at the end of the fixed term, then you will have a statutory periodic contract and b applies.