From next Sunday a guide for values will go online.
Revenue said that from next week letters will be sent to owners of 1.6 million houses. It will take four weeks to send the letters.
Revenue chairman Josephine Feehily admitted that there would be errors. She said that some letters may sent to people who are deceased, while others may be sent in error to tenants instead of landlords.
She said it will be up to current property owners to pay the tax despite the errors.
Householders are being warned that they need to contact revenue if they receive a property tax return but do not own the property.
It should not be ignored as Revenue will pursue collection of the tax.
Useful sources for valuation guidance are revenue.ie, propertypriceregister.ie, property pages of local newspaper, local estate agent, property websites.
Key dates for the new property tax:
May 1, 2013 - Property Valuation and Property Ownership date.
May 7, 2013 - Due date for filing paper local property tax returns.
May 28, 2013 - Due date for filing local property tax returns electronically.
July 1, 2013 onwards - Commencement of deduction at source from salary/pccupational pension or certain payments from the Department of Social Protection and Department of Agriculture, Food and the Marine.
July 1, 2013 onwards - Commencement of cash payments through certain payment service providers.
July 15, 2013 onwards - Commencement of direct debits.
July 21, 2013 - Single debit authority payment deducted.