thinking of buying house (Derbyshire) & doing the weekend commute thing. as I understand the situation: 1) wife and I get a 25% reduction on the council tax at the family home, because it's not my "main home". therefore single adult rate. 2) as I'll be on the over 37 package, I won't even pay CILOCT for staying in the mess five days a week. so I'd be paying no council tax anywhere. is this an accurate interpretation of what happens? or does it vary from county to county? if so, what criteria do 'they' employ for deciding whether somewhere is your main home?