If we split should we p[ay the money back ?

[whatcanmynewusernamebe]

Thinking of separating from long term DH. We moved into a new house a year ago, my FIL offered to pay for some works in the house. He offered, we never asked. Total costs paid by him were around £8kish. Nothing was legally binding, nothing was signed, it was never a loan, he said he wanted to do it for his son and as she had helped his other kids out financially.
We don't have to pay him back, but should we offer if we do decide to separate and sell the house ?

I think the decent thing to do would be for his non child to offer to pay back half. I don't think his child needs to pay their share back as it's really a gift for them.

You should pay half the money back but your DH doesn’t need to as it was a gift from father to son.

You should at least offer (to your FIL directly) to pay back your half of that money.

Hopefully he’ll tell you not to worry about it, but equally he’s going to have some concerns for his son and may accept in order to pass it on to your DH. You’ll have done the right thing either way.