Notice period and liability

I have a problem tenant who thankfully has given notice. Their tenancy is a monthly periodic and starts on the 1st of the month. They gave notice on the 6th. Does the notice effectively take effect on the 1st of the following month, April? IE 1 month from this date, so the tenancy would end on the 1st of May?

They may well be moving out by the end of this month.

The place is a mess, a lot of damage, more than the deposit will cover (lodged with tds).

In regards to council tax, is tenant responsible until the end of the tenancy regardless of when they move out? I know councils just go for the easy option but that doesn’t make it the right option.

Their notice should end on the last day of a tenancy period, (in this case 30 April) or the first day of a tenancy period, (in this case 1 May) and must be in writing.

Provided the notice is written and definite about their intention to leave, (not vaguely worded), then it is possible for you to accept a defective notice, but you must do this specifically by writing back to them stating that you accept it and the date their tenancy will end and that they must vacate, (which will be the date they’ve given you if you choose this option).