Details have emerged of some of the personal information that Irish Water will request from householders.
An "allowances application form" will be sent out from September, in advance of the charges beginning the following month.
The four-page document requests a range of personal information from the name and address, to the PPS number of the householder and those of up to six children living at the property.
It will also ask questions about whether the householder is a homeowner or tenant.
The first bills for water usage are due to be sent out in January.