If she doesn't tell him he will save huge sums of cash - chances are that if he has a fat wage packet she will change her story so she can pay her mortgage - run a car - have holidays etc... Believe me - I'm one of the poor *******s that got stung... oh and she can refuse to let him see the kid reguardless of weather he pays or not, and if not, they will just slap an attachment of earnings on him. Its a wonderful system we have in the UK about 70% of housing on some estate have single mothers living in them and all because the lady loves C.S.A....