Temporary contract/secondment & remortgage

Beckyy

Just query before our re-mortgage.

I'm currently on a temporary contract via secondment, my contract states I will return to my previous position as end of temporary period but I've just been extended on it for another few months which will overlap with our remortgage. There's a big difference in basic pay, but old basic should be enough for what we need to borrow.

Would lenders be okay with this on the basis I do have a permanent position as it's via secondment? I'm assuming they'll use my old basic pay for affordability etc.