About Adenix Accounting (Sydney)
Sydney accountants for small business, individuals, SMSF & crypto tax
At Adenix Accounting, we help Sydney individuals and business owners feel clear and confident about their numbers. Whether you’re lodging a tax return, running a growing small business, setting up an SMSF, or dealing with crypto tax, we keep things simple, compliant, and tailored to your situation.
We’re based in Rockdale, Sydney, and support clients across nearby suburbs and the Sydney CBD—plus we can meet online if that’s easier.
If you’d like to get started, use our tax calculator or contact us to book a free chat.
What we do
We provide practical accounting and tax support across:
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Small business accounting (BAS, GST, bookkeeping, payroll support, reporting)
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Startup accounting (structure decisions, ABN/GST registration, systems)
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Business advisory (cash flow, strategy, performance tracking)
If you’re not sure what you need yet, that’s normal, start with a quick chat and we’ll point you in the right direction.
Who we help
We work with people at different stages, including:
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Individuals & families who want their return done properly and on time
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Sole traders and contractors who want clean BAS, deductions, and less stress
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Startups building their foundation (structure, compliance, cash flow habits)
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Small to medium businesses that need steady support and proactive advice
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SMSF trustees who want peace of mind around compliance
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Crypto investors/traders who want clarity and clean records for the ATO
For helpful guides and tips, you can also browse our blog.
Our approach (simple, personal, and proactive)
Adenix Accounting takes a holistic view of your finances, because tax, structure, cash flow and long-term plans are all connected. When needed, we can work alongside other professionals so everything stays aligned.
You’ll get advice that’s:
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Practical (not theory)
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Clear (no jargon)
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Compliant (ATO-focused, done right)
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Tailored to your goals and your stage of life/business
If you’re planning ahead, our business advisory services can help you make decisions with confidence—not guesswork.
Why clients choose Adenix Accounting
You want an accountant who does more than lodge forms—you want someone who has your back.
Here’s what clients appreciate about working with us:
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Friendly, approachable communication — ask questions any time
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Real care and understanding — money decisions affect real life
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Reliable, trustworthy guidance — we take compliance seriously and explain options clearly
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Experience across individuals, small business, SMSF and crypto tax
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A focus on cost-effective strategies and legally minimising tax obligations
If you’ve worked with accountants who felt rushed, unclear, or hard to reach—this will feel different.
Meet the team
Real people. Real support.
The Adenix Accounting team
Sash Denkovski
Founder
Sash leads Adenix Accounting and focuses on helping clients make smart decisions around tax, structure, and long-term financial direction
Umesh Shenoy
Senior Accountant
Umesh supports clients across tax and accounting work, with a practical, detail-driven approach to keeping things accurate and compliant.
Kristina Denkovski
Marketing Specialist
Kristina supports Adenix’s communications and marketing. She also created Kitchen to Bedroom, a food, wine, and slow living project.
Donna Stojanovic
Office Manager
Donna keeps everything organised and running smoothly, making sure clients get timely support and a great experience.
Talia Quinn
Accountant Assistant
Talia supports the team with preparation work and admin, helping keep turnaround times smooth and stress-free.
Visit us in Rockdale (or meet online)
Office address: Suite 10, Level 1, 3 King St, Rockdale, Sydney NSW 2216
Phone: (02) 9599 1674
Email: info@adenix.com.au
Mon–Fri: 9:00am – 6:00pm
Sat: 10:00am – 4:00pm
Service areas include Rockdale, Kogarah, Brighton-Le-Sands, Hurstville, Wolli Creek and the Sydney CBD.
Ready to make tax and accounting easier?
If you want an accountant who’s easy to talk to—and serious about getting things right—let’s talk.