Federal · Senate (upper house)
Michaelia Cash
Senator the Hon Michaelia Cash
What's this? The Senate is the upper house of federal Parliament. It reviews and votes on laws passed by the House of Representatives. Each state elects 12 senators and each territory 2, so a senator represents their whole state or territory.
Where letters go
Electorate office
Senator the Hon Michaelia CashPO Box 1966West Perth WA 6872☎ (08) 9226 2000
Source: official parliament listing · updated 20/10/2026
How to write to Michaelia Cash
Address your letter exactly like this. Keep it to one page, say who you are and where you live, and ask for one clear action.
Senator the Hon Michaelia Cash
PO Box 1966
West Perth WA 6872
Dear Senator Cash,
I'm writing to you as Leader of the Opposition in the Senate about…
Questions about Michaelia Cash
What is Michaelia Cash's office address?+
Letters to Michaelia Cash go to their electorate office: PO Box 1966, West Perth WA 6872. The office phone number is (08) 9226 2000.
How do I address a letter to Michaelia Cash?+
On the envelope and at the top of your letter, write “Senator the Hon Michaelia Cash” followed by the address. Start the letter with “Dear Senator Cash,”.
What is Michaelia Cash's role?+
Michaelia Cash is Leader of the Opposition in the Senate and Senator for Western Australia in the Australian Senate.
Which party is Michaelia Cash in?+
Michaelia Cash is a member of the Liberal Party of Australia.
Can I send Michaelia Cash a letter online?+
Yes. Better Letters prints your letter, signs it with your signature, and posts it to Michaelia Cash's office. You can also download it free and post it yourself.