I've got a freelance contract signed with an UK based customer, saying that I should do my best to devote at least 174 hours a month (that's 21 days working 8h/day).
I'm based on Spain, where I'm paying my taxes. 3 months taxes nearly equals one month's billed ammount.
Are those 174 hours a month the equivalent to a full-time commitment? Should my client be in charge of paying my taxes or I should pay them in UK (under PAYE)?
ps: I'm only working for this client.