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Years of Experiences

Who We Are?

At Sunnyside Financial Group (SFG), we are a trusted Australian accounting firm and business advisory partner helping small to medium businesses grow with confidence.

We provide accounting services, tax planning, cash flow management, and strategic business advisory across Australia. Our goal is simple — help you increase profit, protect your assets, reduce tax risk, and build long-term business value.

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Serve Clients

What We Do?

''Wealth is not just what it looks like and feels like. Wealth is how it works. "

Accounting and operational support for investment management firms with specializations in private equity, private credit, venture, hedge, and real estate.

Taxation Planning 分隔符 Business Consulting 分隔符 Strategic Planning 分隔符 Bookkeeping 分隔符 Property Advisory

Consultants & Entrepreneurs

End-to-end business operations support—from entity formation to monthly oversight—empowering you to focus on core growth while upholding standards

Consultants & Entrepreneurs

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Education and Skills

Financial and operational expertise for education providers—from regulatory compliance to program expansion—linking strategy with actionable results.

Education and Skills

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Healthcare

Financial and operational expertise forhealthcare organizations-from compliance topromotional campaigns-connecting strategywith execution.

Healthcare

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Hospitality

Expertise in hospitality finance & operations, balancing compliance, service and efficiency to drive success for hotels, resorts, F&B venues.

Hospitality

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Retail and Wholesale

Tailored financial and operational guidance for retail & wholesale—from supply chain efficiency to revenue scaling—turning plans into growth.

Retail and Wholesale

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Real Estate

Tailored financial and operational guidance for real estate businesses—from project budgeting to tenant management—driving sustainable asset value.

Real Estate

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Small & Medium-sized Businesses

Enterprise-level financial services and strategic support,from bookkeeping to tax planning, soyou can focus on growing your business.

Small & Medium-sized Businesses

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Individuals & Families

White-glove tax services for high-net-worth individuals, handling complex filings, investment strategies, wealth planning to protect your financial success.

Individuals & Families

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Why choose us as
your accountant consultant?

Whether you are interested in budgeting and savings, super and investing, or tax saving investments, Sunnyside can help set you up for success.

LEADERSHIP

We understand your goals and build a strategy to reach them, providing expert guidance on financial complexities so you can focus on your core business.

SUPPORT

Business journeys are rarely smooth. When you hit bumps, our advisors provide timely support, perspective, and confidence to help you stay on course and make the right decisions.

EXPERTISE

The sophistication behind a financial report is often underestimated. We have the skill, knowledge and experience required to help clients reach their business goals.

Featured Press Releases

Australia’s October 1 Card Surcharge Ban Could Lead to Higher Consumer Prices 

Australia’s October 1 Card Surcharge Ban Could Lead to Higher Consumer Prices 

From 1 October 2026, Australians will no longer face separate card payment surcharges when paying with major card networks including Visa, Mastercard and eftpos. American Express has also announced that it will remove surcharging from the same date.

The change is designed to make card payments simpler and more transparent. However, while consumers may no longer see a separate surcharge at the checkout, businesses will still incur costs when accepting electronic payments. Some businesses may therefore choose to incorporate these costs into their standard prices.

For Australian businesses, the change represents more than simply removing a surcharge from a payment terminal. Businesses may need to review pricing, payment processing costs, profit margins, payment systems and customer communications before the new rules take effect.

September 28, 2026
How to Manage an ATO Tax Debt in Australia 

How to Manage an ATO Tax Debt in Australia 

Receiving an ATO tax debt can be stressful, particularly for small business owners who may not have enough cash available to pay the full amount by the due date.

An ATO of debt can arise for several reasons, including an income tax liability, GST, PAYG withholding, PAYG instalments or other business tax obligations. Having a tax debt does not necessarily mean you need to pay the entire amount immediately if you are experiencing genuine financial difficulty. The Australian Taxation Office provides payment arrangements for eligible individuals and businesses who cannot pay their debt in full by the due date.

However, an ATO payment plan is not a way to make the debt disappear. General interest charge (GIC) continues to accrue on unpaid amounts, including while a payment plan is in place. Paying the debt as quickly as your cash flow allows can therefore reduce the amount of interest that accumulates.
The key is to address the debt early, understand your cash flow, and communicate with the ATO rather than allowing the debt to remain unmanaged.

September 23, 2026
ASX 200: Why September Can Be a Difficult Month for the Australian Share Market 

ASX 200: Why September Can Be a Difficult Month for the Australian Share Market 

Key Takeaways  Main Text Content  Why Is September Important for the ASX 200?  September has historically been a difficult month for many global share markets.  The Australian market has also displayed this seasonal pattern.  Market Index analysis shows that September has been the weakest month for average ASX 200 returns since 1980, with an average […]

September 21, 2026
News

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Keith Mar

Director of Sunnyside Financial Group

Keith has over 20 years of experience in providing business, tax and accounting advice, and 9 years of experience in financial planning advice. He holds a Bachelor Degree in Accounting and Business Law and a Master Degree in Taxation (ATAX) from the University of New South Wales.
 
Keith is a Chartered Accountant of the Institute of Chartered Accountants in Australia, a Fellow Certified Practising Accountant (FCPA) of the Hong Kong Institute of Certified Public Accountants, and a registered tax (financial) agent in Australia. He also holds external examiner qualification from the Law Society of New South Wales.