Tax Services

Expertise That
Drives Results

OmniTax Professionals brings high calibre tax expertise to every engagement.  We are independent, conflict-free, and committed to delivering practical, solutions-focused tax advice to our clients.

Explore Services Get in Touch
OmniTax Professionals team
Registered Tax Agent (TPB)
CAANZ Registered Practice
"Big 4" Experienced Team
AU & Global Client Reach

About OmniTax Professionals

A firm dedicated to providing quality tax services.

OmniTax Professionals is comprised of tax practitioners with significant experience in "Big 4" accounting firms who apply a fresh approach to meeting our clients' needs.

We provide a value add, practical and solutions-driven service and have experience and knowledge across various tax requirements including providing support for mergers, acquisitions, divestments, refinancings, capital restructures, public offerings, fund and platform establishments, regulator submissions and liaison, tax consolidation, tax modelling, tax distribution/provision calculations, unit pricing, compliance lodgements, tax governance and risk management.

OmniTax Professionals is a registered tax agent with the Tax Practitioners Board (TPB) and a registered practice entity member of Chartered Accountants Australia & New Zealand (CAANZ).

Though we are based in Brisbane (Australia), we service clients throughout Australia and globally.

Our Commitment to Clients

  • Regular and open communication
  • Solutions-focused and commercial mindset
  • Timeliness and reliability
  • Independent and free of conflicts
  • Easy to work with
  • Flexibility to work on small discrete tasks or large transactions
  • One-stop-shop for all your tax needs
  • Senior-led delivery
  • All deliverables reviewed by at least two senior professionals
  • Efficient completion and management of tasks
  • Competitive hourly rates & no administration surcharge
  • Fee quotes available for specific tasks or projects
Managing Directors Abhi Aggarwal, Allan Neilsen, and Stephanie Lam of OmniTax Professionals
Leadership

Guided by Three Managing Directors

OmniTax Professionals is led by Abhi Aggarwal, Allan Neilsen, and Stephanie Lam — each with deep "Big 4" experience and decades of combined tax advisory, M&A, and compliance expertise.

Together they set the firm’s direction: senior-led delivery, commercial judgement, and "hands-on" involvement on the issues that matter most to our clients.

Allan Neilsen · Stephanie Lam · Abhi Aggarwal — Managing Directors

Meet Our People

Explore OmniTax Professionals

From advisory services and technical insights to careers and contact — find what you need across our site.

Services

Income tax, CGT, M&A structuring, international tax, GST, governance, compliance lodgements, employment taxes, regulator review & audit support, R&D incentives, and other specialist services.

View Services

Our People

Senior tax professionals with "Big 4" experience, qualifications, expertise across transactions, compliance, and advisory work.

Meet the Team

Our Values

Independence, integrity, excellence, and commercial acumen — the principles that shape every engagement and client relationship.

Our Values

Insights

Technical updates and commentary on tax developments relevant to our clients.

Read Insights

Careers

Join a growing, senior-led practice. Explore current opportunities and submit an expression of interest to work with us.

View Careers

Contact

Reach our team to discuss your tax needs, request a consultation, or enquire about how we can support your organisation.

Get in Touch

Ready to Talk Tax?

Schedule a free consultation with our team. Whether you require support for a complex transaction, a compliance lodgement, a regulator review, or a governance challenge - we're here to help.

Schedule a Consultation