The work of the Society is funded from membership subscriptions, general fundraising, donations, bequests, sponsorship and special purpose grants. 

Donations to the Royal Western Australian Historical Society Inc. Library, Museum and Building Fund are tax-deductible.

An individual, company or organisation may also become a major sponsor or establish an endowment/trust/bequest fund to recognise family links to Western Australian history.

Donations can also be made to the

Adopt a book program.