USA VAT

Can a USA comapny charge a UK comapny VAT, and if so can the UK company claim it back?

Hi
If the USA company is registered for UK VAT and it meets the conditions for reclaiming VAT then you would claim it back on your VAT return.  
If it is a USA tax that you have been charged you cannot reclaim that back form the UK. 

The USA Co has an EU Vat number, and has charged us 20% VAT, is that allowed?

 

Hello, We cannot advise on another countries tax rules you would need to contact your supplier  . Thank you.

You can only claim UK VAT on your UK VAT return. If your supplier does not have a UK VAT registration they cannot charge UK VAT. If they are showing a VAT registration in an EU country it is likely to be local VAT as several EU countries also have 20% VAT. Check with your supplier what they have charged you.