how do you calculate annualised hours contracts?

[nearlytoolate]

I am trying to work out how an annualised contract is worked out.
Say I want to work 35 hours a week (which is 95% of whole time hours) over 40 weeks (so 12 weeks off in total, including annual leave (which is 30 days for full time employees), bank holidays (8) and 2 additional company closure days), what % contract would I need? And how would I calculate how much leave I had?
I'm pretty good with numbers but can't work it out at all. Does anyone know of a handy online calculator anywhere

actually i think there are 4 additional closure days which we get without having to take annual leave.

Could you do the 95% for a full year, then deduct the extra 6 weeks off, & divide the answer by 52 (or 12)? There'd probably have to be an adjustment for 95% of holiday entitlement too. (The 2 extra days would throw me completely!)

30 days plus bank holidays is a lot

So a FT would work 36.8 hours a week, x 52 weeks which is 1916.6 hours a years. Take off 8 bank holidays (8 x 7.36 hours = 58.88 hours) and 30 days leave (30 x 7.36 hours = 220.8 hours) leaves a working year of 1636.92 hours for a full timer.

If you want to work 35 hours a week for 40 weeks this gives you a working year of 35 x 40 = 1400 hours which is 85.5% of a full timer person. So your contract would be 85.5%

It's easier to do it all in terms of hours - for instance, where I work, you work 37.5 hours a week ft, and get 150 hours basic leave plus 61.6 hours of bank holidays - so 211.6 hours of leave leaving 1738.4 actual working hours.

So, in your case, you want to work 1400 hours a year, which is 80% under my holiday terms.

I reckon (if you do 37.5 hours a week) you get 300 hours of holiday a year - 1650 working hours a year, so if you want to work 1400, that would be 85%

Full time week is 40 hours. (so the leave allowance is generous but the working week is long).
Yes I think working out in terms of hours is probably the right thing to do.
Full time would need to work 52x40=2080 hours.
Leave is 42x8=336 hours, so total full time working hours is 1744.
I want to work 1400 which is about 80% of that.
Of course there are wrinkles like the closure days vary slightly year to year - sometimes they announce an extra one close to christmas.
I also can't get my head around how I would account for time off that wasn't in full weeks...

Just think about it like having lots more leave than currently - you'll be paid your 80% salary all year round, and just book days or week to leave like you would normally as you use them.

I get my leave in hours and take it in hours so if I take a half day its 3 and a full day is 7.5( I know that doesnt look right but I usually do more than 7.5 which balances out the 3!)

Hmm, but then I would have to remember to take bank holidays as leave, and the closure days, and also remember how many hours I am supposed to work each day (which will vary as the normal week will be slightly less than full time, so if I take 8 hours every time I have a day off I will be 'out of pocket' iyswim). Could all get rather complicated.

I am currently on 75% contract and I make a note of extra hours worked a week which I then take off 'in lieu' but it is all pretty informal. Also I am currently accumulating time at a much faster rate than I can take it - so I wondered if I should up my % and still work more or less what I do now...

We have flexi sheets it's all recorded on. Hours vary week by week & I often change my days. Is there something like that you can acesss.mine is on excel & works out from my contract hours for me.

35 isn't 95% of 40, it's 87.5%

oh yes. I think I mean 90% which would be 36 hours!

Does that make any difference to your figures??? (I got lost when the sums started working with hours )

As a Working Time Consultant I can say that working it out the way above could cause all sorts of issues regarding holiday pay etc etc.
Assuming your actual entitlement for holiday days and bank holidays etc in terms of days is the same as a full timer pro rata for hours - first of all make the full timer calculation

Full timer weekly contract = 40 hours
Time off
Holidays 30 days
Bank Holidays 8 days
Company days 2 days
Total 40 days or 8 weeks

Weeks in year 52.18 weeks
(accounting for leap year)

Working weeks 44.18 weeks

Working time 1767.2 hours
commitment for year
(44.18 x 40)

For a part timer assuming holidays etc remain the same then to work 1400 hours per year the annual hours calculation is

Part timer weekly contract = ? hours
Time off
Holidays 30 days
Bank Holidays 8 days
Company days 2 days
Total 40 days or 8 weeks

Weeks in year 52.18 weeks
(accounting for leap year)

Working weeks 44.18 weeks

Working time 1400 hours
commitment for year
(44.18 x ?)

thus the weekly contract is 1400/44.18 = 31.69 hours or a 79% contract