Quote Originally Posted by joebloggs View Post
If you're in the UK but your family lives in another European country or Switzerland, you may be able to get tax credits to top up your income. The tax credits you can get and the amount you can receive depends on how much money you've already got coming in and on your circumstances. You can only get tax credits for a child outside of Europe or Switzerland if your partner (if you have one) is a Crown Servant working abroad.

and i'm pretty sure its the same for child benefit.

If your child goes abroad temporarily, you can continue to get
Child Benefit for them for up to 12 weeks.
You must tell us if your child is leaving the UK for more than
12 weeks.
If your child is temporarily abroad for more than 12 weeks, you
may still get Child Benefit if they are abroad only for one of the
following reasons:
• to receive full time non-advanced education in an EEA country or
Switzerland
• to make an educational or foreign visit that is approved in writing
by their school
• to get medical treatment for an illness that began before they left
the UK.


http://www.hmrc.gov.uk/childbenefit/ch5_notes.pdf
so no you can't claim for kids outside Europe.
Ta Joe ..