Sydney Tax services for growth-focused businesses.
At Quantum House, we help growing businesses manage their tax position with accuracy and intention. That includes compliance, planning, reporting, and identifying incentives that can improve your financial position. Our team of specialist tax accountants work with founders, CFOs and in-house finance teams to provide timely tax advice, manage obligations, and build a tax-effective strategy that supports long-term growth.



Practical advice from trusted business tax accountants.
Australian tax law changes regularly, and each change can influence how your business reports income, claims deductions, or qualifies for an incentive. We understand how challenging it can be to stay up-to-date with those changes while running a business.
We help our business clients stay in front of their obligations.
This involves providing proactive tax advice, monitoring compliance requirements, and planning well in advance.
Our accountants and tax professionals bring deep technical expertise and commercial understanding, particularly in areas such as tax planning, business structuring, and eligibility for the Research and Development Tax Incentive and other ATO tax incentive programs.
Tax support that’s actually tailored to your business.
Quantum House collaborates with established businesses that generate over $5 million in annual revenue. We provide clear advice and reliable execution so your business remains compliant and commercially strong.
Our services include:
Tax returns and lodgements for companies, trusts and partnerships
Compliance and advisory across FBT, payroll tax and land tax
Business tax planning and forecasting
Structuring and restructuring for tax efficiency
International tax advice, including transfer pricing and thin capitalisation
Guidance on claiming the research & development tax incentive and other available ATO tax incentive schemes
Support with ATO audits, objections and voluntary disclosures
How we work.
Get a smarter tax strategy that works for you.
Our approach is based on structure, communication and consistent delivery. We invest time in understanding your business, aligning tax advice with your broader strategy, and making sure the proper steps are taken at the right time.
Quantum House supports clients across various industries, including technology, professional services, manufacturing, and wholesale. As one of the more strategic accounting firms in Sydney, we focus on giving businesses a stronger foundation through smarter tax decisions.

Join The Success.
Trusted Sydney tax accountants for growth-focused business owners.
Joel Spencer2024-04-04Trustindex verifies that the original source of the review is Google. Our experience with Benedict and the Quantum house team over the past few years has been nothing short of exceptional. They have been able to accomodate all of our needs during periods of significant growth and international restructuring. Everything has been consistently done to the highest standard and in a timely manner. I would highly recommend Quantum house to anyone looking for an accounting firm. Uten Kaew2024-03-22Trustindex verifies that the original source of the review is Google. Quick response and reliable. Tom Rafferty2024-03-11Trustindex verifies that the original source of the review is Google. Quantum House have been extremely helpful and easy to deal with in assisting me with multiple different tax issues. Their expertise in dealing with the local tax authority was invaluable. They were also able to help me optimize my personal and business tax structure. I would recommend them to anyone requiring tax and accounting services in Australia. o2024-03-11Trustindex verifies that the original source of the review is Google. Quantum House expertise on Tax is the best I ever experienced. I am so fortunate to have found Ben and his team. You pay for the best, you get the best. Alex Mamula2024-03-11Trustindex verifies that the original source of the review is Google. Ben and the team at Quantum are fantastic. They take care of all our accounting and tax needs for our business and personally for our whole family. They are very approachable, prompt, professional, knowledgeable and efficient JBM Windsor Denis Zhou2024-03-11Trustindex verifies that the original source of the review is Google. Ben has been our trust auditor since 2013. Ben and his team are knowledgable, responsive and above all, solution focused. It has been a pleasant journey working with Ben and his team! Cam Anderson2020-12-20Trustindex verifies that the original source of the review is Google. We have been with Quantum house for quite a few years now. Ben and the team have been great to deal with. Very knowledgeable with attention to detail. Always quick to reply and helpful sorting any matters. Highly recommended! Kelvin Genn2020-02-24Trustindex verifies that the original source of the review is Google. Ben and the eam have outstanding tax knowledge, and excel in the resolution of difficult tax matters with the ATO. Through their skill and relationships they achieve outstanding results. Highly recommend. Noel Kim2018-10-31Trustindex verifies that the original source of the review is Google. Ben is very professional and knowledgeable. I have worked with Ben and his team for many years on tax and accounting stuff, and found them reliable and pleasant to deal with. Definitely recommend to anyone! Sophia Lee2012-12-15Trustindex verifies that the original source of the review is Google. Quantum Business House is a real expert in business accounting and tax.The difference is the knowledge base and understanding of business matters not only accounting but other general business management. The tax experts helped us to resolve our complex tax matters so that we never look back but move forward. Thanks again to the people at Quantum Business House.Load moreVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Our 10 Tax Tips for Businesses Generating $5M+ in Revenue.
1. Plan quarterly, not just annually
Waiting until year-end to review your tax position can limit your options. Review your tax strategy quarterly to stay on top of profit fluctuations, cash flow timing, and any structural shifts that could impact your liabilities.
2. Know your tax-effective structure
If your current setup was built years ago, it may no longer be tax-efficient. Regularly assess whether your business structure aligns with your operating model, cash distribution needs, and growth plans.
3. Don’t leave R&D money on the table
If you're investing in product development, software builds, or process improvements, you may qualify for the research & development tax incentive. Many eligible businesses miss out because they don’t realise what counts as R&D under ATO guidelines.
4. Track Division 7A loans properly
If you’re extracting profits through shareholder loans or related-party transactions, make sure those arrangements are compliant with Division 7A rules. Missteps here can result in unexpected tax liabilities and penalties.
5. Review how you're using trusts
Trusts can be a useful distribution and asset protection tool, but poor documentation or outdated strategies can lead to tax inefficiencies. Ensure your trust deeds, resolutions and streaming practices are current and defensible.
6. Prepay and bring forward where it counts
In high-income years, look for opportunities to bring forward deductible expenses. Prepaying interest or locking in deductible costs before 30 June can reduce taxable income when timing is managed carefully.
7. Watch for FBT and employee benefit exposure
Fringe benefits, such as vehicles, entertainment, or staff perks, can carry tax consequences. If you’re offering benefits beyond salary, check your FBT obligations and consider whether the structure could be made more tax-efficient.
8. Align tax strategy with business cash flow
Simply because an expense is tax-deductible doesn't automatically make it a wise financial decision. Tax decisions should support, not strain, cash flow. Structure payments and purchases around the broader financial rhythm of the business.
9. Get ahead of ATO reviews and audits
Businesses at this level are subject to increased scrutiny from the ATO. Maintain thorough documentation, apply consistent treatment, and proactively address any areas where your position may differ from general ATO guidance.
10. Work with specialists, not generalists
As your business scales, the tax questions get more complex. Whether it’s restructuring, succession planning or cross-border expansion, make sure your accountant has deep technical experience in tax, not just compliance.
Speak with a senior tax adviser at Quantum House.
If you’re looking for a business tax accountant who understands growth, we’re ready to help. Contact us to learn how our Quantum accounting team can assist you. Book your consultation today.

Benedict Youn.
Chartered Tax Adviser | Managing Director, Quantum House