Re: Question about the tax calculations on this sitehttp://www.esatclear.ie/~grabe/TaxCal
Write to Revenue with details of your tax for 2005 (e.g. copy of P60 and any documentation for stuff that has not already been claimed - e.g. MED1 expenses, standalone pension contributions, private health insurance paid by employer for which you are entitled to a credit etc.) and ask them to review your tax (do a P21 balancing statement) to claim back any tax due. You can also do this for 2004, 2003 and 2002 if you suspect that you are due tax back for those years as well.