Household account maths - am I being duped here

[barbedwired]

Me and DP put £1000 each per month into household account

DP buys something for house out of own money for £500

DP puts £100 less in account for 5 months

Is this right, as in even split of the purchase as I can't get my head around it despite having o level maths

He brought something for the house with own money - surely the cost should have been spilt so you put in £250 more and he puts in £250 less.

Your way is correct, he's still contributed 5k over 5 months, as have you.

Yes system needs to change , we each put in £250 extra, too confusing

Yes it’s right. Alternatively you could have paid him £250 and you would then both have contributed the same amount from your personal accounts for household item.
He has loaned the household account £500, he has been paid back the same amount by reducing his contribution each month.

So are you having to pay £1100 into the joint account for those 5 months to cover bills?

Yes, that sounds fine to me. Over 5 months you've put in £5000 and he's put in £4500 (£900 x 5) plus £500 on the item, so the same in total.

If everything is split 50 /50 although they spent £500 initially, they are not able to recoup the whole amount from the joint account. They are liable for £,250 of the joint spend = recouping only £50 per month.

@UhtredRagnarson no , we don't usually spend all the money anyway.

I used those figures for the calculation, the amounts are higher

It's sounds right but like an utter ball ache to work out just pay half

@idontlikealdi yes it is

It's right, but why wouldn't he just pay himself back the 500 out of the household account right away?

Yes it works out. He paid a certain amount, and by paying less in monthly he is now whole again. You could have done it a few different ways, eg you giving him £250 from your personal account. Taking £500 from the joint in one go.

Just wondering - Is there a reason you would feel duped? Maybe it's just a turn of phrase...but if my partner had worked it out wrong I wouldn't feel like he had done it purposefully, or to dupe me...

[quote barbedwired]@UhtredRagnarson no , we don't usually spend all the money anyway.

I used those figures for the calculation, the amounts are higher
[/quote]
That ok then. He was just paying himself back out of the joint account in that case. His maths is accurate.

Why do you think he would 'dupe' you?

Why doesn’t he just take the £500 out of the house account if there’s extra in there?

@LemonSqueezy0 that's a whole other thread for another time maybe

Would it be easier to start a separate joint savings for household stuff and make purchases from that