Can I suggest that you check it very carefully? I submitted my return in late Sep and then got a bill for circa E2,000. Not being that au fait with tax matters I assumed it was right and paid it. Some weeks later I got a cheque for E2,900, the original amount back and E900 with it! I had calculated 'Gross Income' to be the figure shown on the P60 plus the deductions for Superannuation and another item which are deducted at source. I suppose I was lucky that someone spotted it.