6541.0.30.001 - Microdata: Income and Housing, Australia, 2017-18 Quality Declaration 
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 13/11/2019   
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FILE STRUCTURE

RECORD LEVEL TYPES

The 2017–18 Survey of Income and Housing (SIH) Basic Confidentialised Unit Record File (Basic CURF) contains four levels of record files: Household, Income Unit, Person and Loans. The Detailed Microdata File and TableBuilder includes more levels including Superannuation, Child care and Wealth.

Different information is available for each record level.

The Household level includes information on:

  • State or territory of usual residence
  • Area of residence (Greater Capital City Area/Rest of state)
  • Housing characteristics such as tenure type and housing costs
  • Dwelling characteristics such as the number of bedrooms in the household
  • Household type and composition such as the number of families in the household
  • Household income
  • Household child care costs, benefits, rebates, number of hours of child care
  • Main source of income such as employee income or government pensions and allowances
  • Household wealth
  • Net imputed rent and gross imputed rent
  • Information relating to the household reference person

The Income Unit level includes information on:
  • Income unit income
  • Source of income such as employee income or government pensions and allowances (as for household level)
  • Weekly rent payments
  • Income unit type such as couple with dependants or lone person
  • Selected housing characteristics (including tenure type and landlord type)
  • Child care use, costs and subsidies
  • Demographic information

The Person level includes information on:
  • Age
  • Sex
  • Marital status
  • Relationship in household
  • Country of birth
  • Year of arrival in Australia
  • Family type
  • Income unit type such as couple with dependants or lone person (as for income unit level)
  • Labour force details such as employment status and hours worked per week
  • Occupation and industry
  • Education status
  • Education qualifications and education institution attending
  • Income
  • Source of income
  • Barriers to labour force participation due to child care related reasons
  • Carer payment and supplement
  • Information on personal assets, accounts with financial institutions and offset accounts
  • Superannuation
  • Disability, including type and severity

The Loans level contains information about the characteristics of each loan such as:
  • Main purpose of loan such as housing or vehicle
  • Characteristics of loan such as:
    • Security
    • Amount borrowed
    • Principal outstanding
    • Weekly repayment

The following levels are only present in the Detailed Microdata File (DataLab) and TableBuilder products.

The Child care level contains information about the characteristics such as:
  • Cost of care
  • Type of care
  • Child care rebate and benefit
  • Income units

The Superannuation level contains information about the characteristics such as:
  • Age at which recipient receives regular income from account
  • Type, value and duration of Superannuation account
  • Income units

The Wealth level contains information about the characteristics such as:
  • Value and Type of wealth

The Household, Income Unit and Person levels are hierarchical: a person is a member of an income unit, which is a member of a household. The Loans and Wealth levels are members of the household level. Superannuation and Child care are members of the person level.

There are several identifiers on records at each level of the file. Weights are also included to enable population estimates. In the Basic CURF children under 15 years do not have their own person level record on the file. However, information on the number and ages of such children was collected and is included on the household and income unit level files. A complete list of the data items available on each record level is available from the 'downloads' tab.

Record Counts

Table 1 below shows the number of records on each level of the 2017–18 SIH Basic CURF. The number of records on the unconfidentialised file are also included in the table for comparison.

Table 1 - RECORD COUNTS, SIH 2017–18

SIH Basic
SIH Unconfidentialised
no.
no.

Household
14,060
14,060
Income Unit
16,820
16,848
Person
33,439
33,593
Loans
9,042
9,042

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