How would you split the cost of this trip?

[GetBendyWithWendy]

Surprise birthday trip for the parent of adult children.

Attending:
The other parent.
One adult child with a spouse and teen.
One single childless adult child.

Oh I see, I was confused by the op. How much extra is the teen?

In my family, in this situation, we would split 4 ways. Other parent and single person pay 1/4 and family pay 2/4

Feels fair, family not penalised too much but single person not having to pay as much as family

But this isn’t a fair split.

You have one solo adult.

One Single parent bringing a child.

Two adults in a couple bringing one child.

The couple have two incomes to cover their share yet the other two parties don’t.

It should be split per person and then the adults bringing children cover their share.

Birthday guests cost is covered by their husband and two children.

As it’s a present to a parent, I would split three ways (spouse of parent 1/3, adult child 1/3, adult child 1/3) for accommodation. I would probably split food between everyone depending on how much the teenager eats. If you drink, I would split wine costs between those who are drinking.

I think if it needs more than a passing discussion, it's a bad idea to go on holiday together.

If I was the married sibling, I'd say split the cost by the number of rooms and each pays for those they occupy (plus half of parents). If I was the single sibling, I'd say the present is a trip to get all those people together and it should be split 50/50.

if You cant agree I would drop out

There are 6 people (a teen counts as an adult in my eyes) but birthday adult isn't paying so cost is split between 5 and everyone else is due that.

Split 5 ways couple with teenager paying 3/5

then it gets split 5 ways.

Are you the single adult no child?

One Single parent bringing a child.

There is no single parent with a child. Not sure where you got that from.

So you mean including the teen as one of the five?

Teen counts as an adult because likely they’ll need their own room. Spilt the cost per person excluding the birthday parent.

I would split four ways on the expectation that you have an Airbnb with four rooms - one for parents, one for couple, one for teen, one for single.

Present I would split 3 ways between the two "children" and the non-surprise parent.

meals everyone should pay for themselves/their teenager. So married couple and teen one block, overall parents one block, single one block but not an equal division.

Apologies!

But this means my way of splitting stands even more. Split Pp. The solo parties coming (Dad and adult child) shouldn’t have to pay as much as the party of two adults with a child.

Depends on bedroom split. Does the teen get their own room?

This is how I think it should be done too.

Divide it by the number of people and then everyone pays their share?

Not sure how old the teen is as there's quite a difference between 13 and 16-19. Do they need their own room?

The two adult children pay for both parents - occupancy and if they can afford it the food (because parents are going to pay to eat even at home).
each of the two adult children pay for their occupancy cost of their families.
each of the two children pay for their food consumption

Are there financial strains?

I assume you’re a single person ?

It definitely should be split proportionately.

I’d guess that the Adult child with the teenager (classed as adult in air bnb) want to split it three ways? And that’s not fair

I always prefer paying by bedroom for the holiday house, paying per person for food / activities / flights.

Oh and then it is up to the two 'children' and spouse of the birthday person if the 'children' put in more as it's meant to be a treat for their parent and if the other parent is paying that's not really a gift anymore...so maybe the house is split by bedroom and then the 'children' pay for the food?

Birthday person gets 1 free bedroom and shares with spouse. Everyone else pays for however many rooms they use. If middle family use 2 rooms they pay for 2 rooms plus half of birthday persons room. Single person pays for 1 room plus half of birthday persons room. Food split per person minus birthday person.

Are they getting a room? How is the room split?

You could split by room with parent paying half divide the rest?

I would split 50/50 with my sibling and not ask non suprise parent to pay either