They do not bother about such things these days and it will not affect the financial outcome as far as I know - everything you own and everything you owe including pensions (which are often a very valuable part of the settlement)is put into a pot and that will be divided either according to what you agree, or if you don't agree it will be decided by the Court. Depending on your needs, children, future earning capacity etc., the Court will decide what both parties are entitled to. Best to agree though, it works out that the lawyers get a big chunk if you fight !