Why is there a Senate estimates and not a House estimates?
Thanks for your question, Emma.
One of the functions of the Australian Parliament is to closely examine the work of the Australian Government. One of the ways the Senate does this is through Senate estimates, where senators have the opportunity to question ministers and top public servants about government spending.
Because the government has the support of the majority of members in the House of Representatives, Budget bills always pass and are not scrutinised – closely examined – as closely as in the Senate. These differences mean the House of Representatives has not developed the same processes as the Senate.
The Senate—where the government most often does not have a majority—considers the Budget in more detail through estimates before agreeing—or not agreeing—to it.
Senate estimates in action

DPS Auspic
Description
Members of parliament sitting at desks in rows opposite each other in a committee room at Australian Parliament House. There are folders of paper and laptops in front of them. One member of parliament is speaking to the group and the others are listening.
Permission should be sought from DPS AUSPIC for third-party or commercial uses of this image. To contact DPS AUSPIC email: auspic@aph.gov.au or phone: 02 6277 3342.