I think it's a bit of a nonsense as clearly depends what stage in life you are at etc.
My situation. I'm 40, my take-home pay each month is £2k pretty much on the nose but of this about £100 goes into pension so I'm adding that on for £2100 available to me, and taking it off in Save. Single, no kids.
This is first time I've broken it down line this so interesting to me anyway!
Summary:
Mine is 60/21/15 + 4 unknown, that 4 is probably some extra in all pots
Needs:
Mortgage £480
Electricity & gas £40, water £12, broadband £27, mobile phone £9, home insurance £8 = £96
Council tax £142
Car (essential for work and living semi-rurally): Insurance £220, tax £255, MOT/service (variable, average) £350 = together £69 per month, monthly petrol £80, total car = £149
Window cleaner £9 (need as I'm not physically able myself)
Work car parking costs £36
Repay parents for house deposit loan £200 (will drop off and move to savings next year)
Essential general repairs/maintenance costs which are very variable... , eg, this year so far repair my front door £200 & fence £50, got my boiler repaired £250... say £50 a month
Day-to-day food & house cleaning items, £100 per month
Needs = £1262 / 2100 = 60%
Fun:
TV Licence £13.25
Cleaner £80
Presents/treats for family birthdays and Christmas (5 kids x £50 x xmas&birthday=£500, + £500 parents + £200 ad hoc treats) = £100 per month
Holiday £80 (variable, I typically spend about £1k a year)
Once a month takeaway or eat out, coffees etc £25
Not essential food - chocolate, alcohol etc £20
Art galleries & concerts = £50
Clothes & shoes etc = £20
Home & garden spend, eg plants, electric blanket etc - variable but I reckon =£50
Fun: £438 monthly = 21%
Save:
Mortgage overpay to save interest £45
PAYE pension £100
Discretionary extra pension contribution £25
Overpay student loan (won't get written off so overpaying is not lost money, reducing interest so count as save) £50
General savings £100
Save: £320 monthly = 15%
How much could I change on this? I could probably move about £100 from Fun to Save pretty easily but my life would be unbelievably boring and frugal (to be honest it already is pretty boring!).
I'm pretty happy with my lot!