Half the money from the joint bank account
Only fair if you have paid the bills (water, gas, electric, council tax), completely for the period he lived with you, so if gas, water, electric, council tax, broadband, any pay TV channels, are all paid to the day he moved out (which they won’t be as they are quarterly or yearly), then that money remains with you. This guy is a douchebag!
Half of the money that we are currently in credit with for gas/electricity company (I've questioned this, he says its unspent money so akin to money in the joint account)
Rubbish! This is only fair if these bills are paid up to the date he moved out! Otherwise you could get a bill in 1/2/3 months and it wipes that credit out. Plus you might have been in credit when he moved in! CF
Half the moving costs
No! If he had to hire a van and do three trips, he must have acquired a lot of “stuff”, for someone who is a minimalist! He can F.O.
Half ish of the costs of the 3 white goods (I've countered with pointing out he never paid me half his rental income)
Yes, he can have half the money, but, only at their worth today, having been used for the past 2.5 years. That half will then have to be halved again to account for his usage, which has depreciated the value accordingly. So about £10 is fair!
NEXT STEPS
He has to pay the following to you:
Half the rental income he got from his flat, as he was only able to save that money because he moved in with you. That has to be paid pre-tax to you as you will get a tax bill for that.
Rent to you equivalent of one-quarter of your rent/mortgage. This is fair as there were 4 people living in the property and you are financially responsible for yourself and the 2 children, plus he had to share a bedroom.
Storage costs for the three van loads (!) because that’s a lot of stuff for someone who claims to be a minimalist! Work out the storage costs by multiplying the size of the van x 3 by 60 months. Then some research into how much a storage unit that size would cost, which should be easy to find online in your area.
The tax credits for the 60 months he lived with you.
The additional charge for council tax, since you lost sole occupancy.
Half the cost over 60 months of:
broadband,
house insurance ,
building insurance,
pay TV (Netflix, Prime, etc.),
depreciation of furniture along with fittings (carpets, etc.) and appliances,
water,
cleaning charges in full (unless he shared it or better yet, did all the cleaning),
cooking charges in full (unless he cooked at least 3 times per week),
laundry services in full (unless he did all his own clothes and also towels, face cloths, bath mats, and at least one load of bedding per week)
redecoration and flooring costs divided by 2 because after 5 years, your place probably needs sprucing up, so he gets to pay half as he also had his dog living with you
therapy charges for your children for the emotional/mental distress that they are naturally going through after having this man in their lives for 5+ years.
I can’t think of any more but I will let you know if I do as I don’t feel this is an exhaustive list, this is just for you to be getting on with for now 🌺