in that case, you'd have to go to a social worker and discuss it with them. you would have to make an effort to discern paternity. if you genuinely have NO IDEA, then you have to sign declarations to that effect. if it's later found to be untrue (ie, you DID know the paternity), then you would have to pay back a hell of a lot of money

FWIW, i personally know of someone who had to get three individuals tested for paternity. it wasn't pretty, but it had to happen. c'link aren't "nasty", they're just doing the right thing by ensuring that both biological parents are financially responsible for the child - if not, the assistance available isn't stopped, it's simply reduced.

kitt3n - even if your ex only has to pay you $14 a month, its something towards the childs upbringing. had you decided not to go ahead with pursuing that measley amount, you'd have lost a hell of a lot more than that from the government... it really is worth it

as for the ex that doesn't declare his earnings, the government (CSA,c'link, ATO) don't know these things unless they're pointed out, so do a tip off! it's not "dobbing", it's not "un-Australian" - it's the right thing to do. why should he get away with not paying taxes (if nothing else) - the rest of us have to do it!!! and you can guarantee he makes use of goverment funded services in his everyday life (medicare etc)...