DP and I live together with my two DD's from a previous relationship.
DP earns just over 35k more than I do.
Our monthly outgoings are 2500 (includes food, bills, mortgage, dog walker, broadband etc)
We currently pay £1200 (me) and £1300 him towards these costs-any money over is our own to do what we will with. Obvs DP has more free money as he earns more and has less outgoings (I pay separately for all stuff for my girls-clothes, going out, toiletries etc).
I lost all tax credits and any spousal
Maintenance I was getting from
Ex h when DP moved in-fair enough. So my own income has gone down by about £600.
Does this split on all the bills seem fair or should I be paying an extra £50 to make it absolutely even? What do other people do re splitting costs?