I recently got paid for some extra work i did during the summer for the Dept Of Education. I am a teacher and get my normal pay every 2 weeks. I am married and tax credits shared with my wife who also works. In my pay slip for this extra work i lost 40% on P.A.Y.E. , 8% on USC and 4% on Employees PRSI so overall i lost 52% of what i earned. This is far more than what i pay in my normal wages every 2 weeks. Any advice or will it all just work itself out when i request a P21 balancing statement in early 2019?