Precision Ledger is a locally owned accounting and bookkeeping firm based in Karratha, Western Australia, dedicated to helping small businesses gain clarity, confidence, and control over their finances.
Our Mission:
To empower small businesses with accurate financial information, streamlined systems, and trusted advice so they can focus on what they do best.
We provide accurate, reliable, and proactive financial support, ensuring your books are up to date, your compliance obligations are met, and you have the information needed to make informed business decisions.
CPA
BAS Agent
Karratha Local
About Us
Mary Hanna
CPA and BAS Agent
Mary is the founder of Precision Ledger, providing accounting and bookkeeping services with a focus on clarity, accuracy and practical support for business owners.
Originally from the Philippines, Mary migrated to Australia in 2013 and has lived in Karratha since 2014. She holds a Bachelor’s Degree in Accounting, is a Certified Practising Accountant (CPA Australia), and a registered BAS Agent. She is also studying and working towards her registration as Tax agent and is a supervised representative of ISM Tax Associates.
Mary has developed extensive experience across both the public and private sectors, working in a variety of finance and accounting roles including:
Finance Manager – Blades and Shades Karratha (2025–present)
Senior Accountant – Northwest Accountancy (2023–2025)
Financial Accounting Officer – City of Karratha (2017–2022)
Finance Officer – St Luke’s College Karratha (2014–2017)
Accountant - Mercedes Benz Financial Services Philippines (2012-2014)
Accountant - Law Office of Lucenario and Associates Philippines (2010 - 2012)
More than an accountant, Mary is a trusted business partner who understands the challenges and ambitions of small business owners—and is committed to helping them succeed with confidence and clarity.
