just a note, you can pay tax each month if your self employed using a P30 form. I do this as I dont trust myself to have all the money at the end of the year.
P30s are only for employees or company directors. Self employed can set up monthly direct debit payments with Revenue.
Well I've been informed that I can claim certain things as expenses i.e. wear on tear on the car, petrol, meal etc. I'm a bit unclear about how it all works. Like I said, I've only recently become self-employed.