Confused myself
I have tenants who have been renting from me for 2 years. During that time I have had to constantly chase them for rent due to me.
Anyway their yearly contract has ended and we have mutually agreed not to renew the contract as we both agree we cannot afford this situation to continue.
There are two ways to look at this. I tend to side with number one but I'm sure other posters will differ, and I'm aware of the issues with point one (see last line of my post):
ONE: Did you have a Fixed Term Contract with your Tenants? If so, the tenants are required to advise you, in writing, at least one month before the end date of the term of that contract that they wish to remain in the property and avail of a Part 4 tenancy.
If they did not serve you written notice of this intention then they must vacate the property by 23h59 on the end date of the contract. You do not need to serve them notice to quit.
TWO: Regardless of your contract, the tenants have been in residence for more than 6 months which means they can assume the rights relating to a Part 4 tenancy. This means that they are entitled to a written notice period of either:
42 days (if they have been in the property between 1 and 2 years) or
56 days (if they have been in the property between 2 and 3 years).
In the event it is deemed that you have served them notice incorrectly, you will have to do it again, properly, with the date that you do serve it properly being the date at which the new countdown (42 or 56 days) starts.
The issue with point one is that, once a tenancy is in place for more than 6 months (and therefore becomes a Part 4 tenancy) no rental contract can include clauses or stipulations that conflict with the laws as per a Part 4 tenancy, so the notice period as per a Part 4 tenancy will then become enforceable.
The problem becomes that tenants on a Fixed Term Contract AND a Part 4 Tenancy can have conflicting rights and so therefore you should always err on the side of caution and go with the Part 4 Tenancy rules.
Bugger - think I just convinced myself that option two is better than option one. Sorry, chippy, not sure this post was much help at all!
I would certainly be in contact with their SW officer, though, to advise of the rent arrears.