Thanks for the replies. To answer a few questions and comments.
We wouldn’t have any additional housing or car cost.
The mat leave figure is the difference between my mat leave pay and salary. We wouldn’t be entitled to child benefit.
It would be dc 3 - there are things that could be reused but things are looking worn now they have been used by 2 dc. Clothing would depend on gender and season. Plus toys, books etc.
I calculated the childcare based on our current nursery fees, taking into account the different price per age and then deducting tax free childcare and then the reduced cost when 30 hours kicks in. We also only need childcare in term time for 3 days a week. For those saying it’s high, that is the minimum cost without taking into consideration fee increases which are inevitable.
The 15k includes everything from prams, bedroom furniture, day to costs, nappies, wipes, formula, car seats and every other thing going. I think 3k a year is very conservative and is easily surpassed.
To those wondering why we’re having the conversation, dh is saying that for a third baby, he wants to plan financially and have the childcare costs and mat leave salary difference in additional savings before baby is born so these aren’t taken out of salary. He is basically saying that he doesn’t want our lifestyle to change as he doesn’t think it’s fair to our current dc and he enjoys nice holidays, days out etc. Our day to day costs will naturally go up with an additional family member. It’s hard as I do understand where he’s coming from but I don’t look at it so clinically. He’s a planner, I’m more of a, it’ll be fine kind of person.