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About Us

The Small Business Tax Professionals

STS Financial Services

Believes every business deserves tailored financial guidance built on precision, integrity, and trust. Founded in 2003 by David De Lia, a Certified Practising Accountant (CPA) and Registered Tax Agent with over 25 years of industry experience, our Thomastown-based firm has grown by working hand-in-hand with the local clients we serve. We take pride in supporting small businesses, SMSF owners, and individuals across Melbourne with reliable advice and dedicated one-on-one attention. Whether you require tax and accounting strategies, SMSF specialist support, or residential and commercial mortgage broking, our local team manages your financial needs in-house from start to finish, never outsourced.
What Sets Us Apart?

What Sets Us Apart?

At STS Financial Services, we bridge the gap between complex financial requirements and straightforward, reliable guidance. Unlike traditional practices that operate in silos, our firm brings together the following under one roof:
High-Level Technical Qualifications
Partner with local CPA leadership committed to clear communication, tailored strategies, and your long-term prosperity.
Localised Service
End-to-End Financial Strategies
Direct CPA and Registered Tax Agent Oversight
Continuous Client Support
Proactive Advice

Get in Touch

Let’s discuss how our team can support your growth. Reach out to STS Financial Services now by emailing support@stsfinancial.com.au to schedule your personalised one-on-one consultation today.