One Employment Tax Specialist + One Software Engineer 

Thirty years of employment tax, turned into software.

2Venture brings together an employment tax specialist with 30+ years advising major employers and a software engineer with 30 years of experience. After decades seeing teams struggle through monthly spreadsheet based payroll tax work, the solution was obvious — engineer a platform that does it right. St8tax delivers professional grade payroll tax reporting without the manual burden.

Confident & credible

Professional-grade rigour in every calculation — the standard Australia’s largest employers expect.

Simpler. Together.

We work alongside finance and payroll teams, not above them. Compliance should be simple, not a chore.

Australian to the core

Designed, developed and hosted in Australia, for Australian legislative reality.

Co-Creator of St8tax

Meet Sheree De Celis

Sheree De Celis is a highly respected Australian employment tax specialist with more than 31 years of experience across payroll tax, fringe benefits tax, global mobility, Single Touch Payroll (STP), superannuation and workforce compliance. A Fellow Chartered Accountant (FCA), she is known for simplifying complex employment tax issues and designing governance frameworks that stand up to regulatory scrutiny.

Sheree spent nearly three decades at Ernst & Young (EY). As a Partner in People Advisory Services she was involved in leading major national projects including STP and STP Phase 2 transitions, employee entitlement reviews, long-term incentive plan design and global mobility policy development. She is recognised for her ability to translate technical tax concepts into clear, practical guidance for executives, boards and HR leaders.

She also served as an in-house Employment Taxes Specialist for a global mining company, overseeing enterprise-wide employment tax governance and strengthening compliance across payroll, HR, finance and mobility functions.