– Trusted Chartered Accountants in Sydney –
Welcome to Nucleus Accounting
At Nucleus Accounting, our name reflects our purpose. Just as the nucleus is the vital core of every cell, accounting forms the core of every successful business.
We exist to help individuals and businesses rediscover the real value of accounting and tax — not as obligations, but as powerful tools for growth and strategy
Jenny Do is the founder and Principal Accountant of Nucleus Accounting. After completing her Commerce degree with Honours at ANU, Jenny spent over a decade at some of Sydney’s most respected CA firms before founding Nucleus to build something more meaningful.
Jenny works closely with her clients across tax, SMSF, and business accounting — not just at tax time, but year-round. She’s proactive about finding ways to minimise tax, structure things properly, and help you make smarter financial decisions before problems come up. Whether you’re a sole trader just getting started, a growing business, or managing a complex multi-entity structure, Jenny takes the time to understand your situation and makes sure you’re never paying more than you should.
Our Associations
Meet Our Team
Ju Do (Jenny)
Director, CA
Evelyn Thuong
Senior Accountant
Vincent Dinh
Accountant
Simone Tamborini
Accountant
Otilio Tran
Testimonials
What Our Customers are Saying
I have had an excellent experience working with Jenny and Nucleus Accounting.
Jenny provided professional and strategic guidance in establishing
The A&W Richer Pty Ltd and The Richer Family Trust for my investment property structure.
Her knowledge of company and trust structures, compliance requirements, and long-term planning
was evident throughout the process. All documentation was handled efficiently, accurately,
and with a high level of attention to detail. Jenny communicated clearly, acted promptly,
and ensured the structures were set up correctly from both a legal and tax perspective.
I value the quality of advice and professionalism provided and intend to continue working
with Jenny and Nucleus Accounting on an ongoing basis. I would confidently recommend her
services to investors seeking a reliable and well-informed accounting partner.
Jenny and the Nucleus team have been handling my business and personal accounting and taxes for the last three years. I can't thank them enough for the level of service and attention they have provided. I've had accountants before who completely missed what Jenny and her team picked up — saving me so much time, energy, and stress. Highly recommended.
Ju Do and her team at Nucleus Accounting consistently go above and beyond. Every year, tax time feels completely stress-free thanks to their professionalism, efficiency, and attention to detail. They make the entire process smooth and straightforward, and I always feel confident that everything is being handled with care and expertise. I truly appreciate the support and guidance they provide!
I’ve been working with Nucleus Accounting for several years now, and the most impressive part has always been their attention to detail. They don’t just look at the numbers — they genuinely treat my business as if it were their own, always striving to create better impact and more benefits.
As a sole trader, I often have very basic questions, but they always respond with sincerity, clarity, and patience, helping me understand and feel confident in my decisions. Thanks to their support, I can focus on running my business smoothly without worrying about the accounting side of things.
I’m truly grateful for their ongoing assistance and highly recommend Nucleus Accounting to anyone looking for a firm that goes beyond the basics, paying close attention to every detail while genuinely caring about your business success.
I've had tremendous results provided by Jenny and the team regarding both my business and personal tax matters. They’ve delivered a seamless service and have been with me every step of the way, supporting both me and my business.
Thank you to the Nucleus Accounting team for your hard work, dedication, and results. We look forward to working closely with you into the new year!
Strength at the Core of Your Finances
Discover your needs
We help SMEs stay compliant and profitable with accurate accounting, tax planning, and business advisory solutions designed to support sustainable growth.
For large organisations, we offer comprehensive financial oversight, performance reporting, and strategic advice to drive efficiency and long-term success.
Our team provides reliable financial management and reporting services to help not-for-profit organisations maintain transparency and meet compliance obligations.
We make tax time simple with accurate lodgements, deductions advice, and personalised support to help individuals optimise their financial position.
Our experts specialise in Australian tax compliance and advisory services for non-residents with local investments or income, ensuring full compliance and minimised tax exposure.
We assist property developers with project accounting, tax structuring, and cash flow management to maximise returns and ensure smooth project delivery.
We provide clear financial guidance for retirees, from managing superannuation and pensions to ensuring tax efficiency and peace of mind in retirement.
Strength at the Core of Your Finances
Discover your needs
We help SMEs stay compliant and profitable with accurate accounting, tax planning, and business advisory solutions designed to support sustainable growth.
For large organisations, we offer comprehensive financial oversight, performance reporting, and strategic advice to drive efficiency and long-term success.
Our team provides reliable financial management and reporting services to help not-for-profit organisations maintain transparency and meet compliance obligations.
We make tax time simple with accurate lodgements, deductions advice, and personalised support to help individuals optimise their financial position.
Our experts specialise in Australian tax compliance and advisory services for non-residents with local investments or income, ensuring full compliance and minimised tax exposure.
We assist property developers with project accounting, tax structuring, and cash flow management to maximise returns and ensure smooth project delivery.
We provide clear financial guidance for retirees, from managing superannuation and pensions to ensuring tax efficiency and peace of mind in retirement.
Accounting Services We Offer
Small Business Accounting Services
We provide complete accounting support to help business owners stay organised, compliant, and financially informed.
Bookkeeping Services
We manage your records, reconcile transactions, and provide clear financial reports you can trust.
Payroll Services
Simplify staff payments, super, and compliance with reliable, on-time payroll processing.
Business Advisory Services
Expert guidance to manage your business finances, stay compliant, and grow with confidence.
Tax Advisory Services
Maximise deductions and minimise tax liabilities with strategic tax advice tailored to your business.
SMSF Services
Managing superannuation effectively is one of the most important parts of long-term financial planning.
Get Expert Accounting Help
Jenny and the Nucleus team have been handling my business and personal accounting and taxes for the last three years. I can't thank them enough for the level of service and attention they have provided. I've had accountants before who completely missed what Jenny and her team picked up — saving me so much time, energy, and stress. Highly recommended.
Book a free 30 minute consultation with Jenny, our Principal Accountant
For small, medium and enterprise businesses who want:
- Better service and communication
- More business growth
- More time efficiency and savings
FAQ
Frequently Asked Questions
What types of clients do you work with?
How much does an accountant cost for a small business in Sydney?
For small businesses in Sydney, Nucleus Accounting offers clear, fixed‑fee packages tailored to your size and level of complexity. After a short discussion about your structure, bookkeeping and reporting needs, we’ll provide a transparent quote so you know exactly what your ongoing accounting costs will be.
What accounting and tax services do you offer?
Can you help with tax planning to legally reduce tax for my business?
Yes – Nucleus Accounting provides proactive tax planning for businesses to help legally minimise tax while staying compliant. We review your business structure, the way you pay yourself, the timing of income and deductions, and available small business concessions so you can keep more of your profit over the long term.
How do I get started with your firm?
To get started with Nucleus Accounting, you can book an initial consultation through our website or contact our Sydney office directly. We’ll learn about your business, outline how we can streamline your accounting and tax, and provide a tailored proposal so you can decide if we’re the right partner for your next stage of growth.