Helping Aussie Ecommerce Brands Scale Smarter,
Not Harder.
At Day One Advisory, we’re the numbers nerds who love helping online businesses thrive. From startups taking their first sale to booming brands scaling up, we handle your accounting, bookkeeping, and business advisory—so you can focus on what you do best.
We’re pros at Xero, Shopify, and A2X, making sure your finances are crystal clear, your workflows are seamless, and your decisions are backed by solid data. Whether it’s profitability tracking, GST compliance, or tax planning, we keep your numbers in check—so you can grow with confidence.
What makes us different?
Always One Step Ahead
We’re not just here to balance the books—we help you stay ahead of deadlines, keep your cash flow in check, and dodge any financial curveballs coming your way.
Ecommerce Specialists, Not Just Accountants
We get it—online sales, inventory management, and platform integrations can be a maze. Unlike traditional accountants, we speak your language and know the ins and outs of running a thriving ecommerce business.
Fixed Pricing, No Surprises
We keep it simple with upfront, fixed pricing—so you always know what you’re paying for, no hidden fees, no guesswork.
Smart Tech, Smoother Finances
We harness the power of cloud-based accounting tools to streamline your processes, cut out the hassle, and save you time.
Beyond the Basics
We’re more than just tax returns and BAS lodgements—we help you maximise profits, streamline operations, and scale with confidence.
Meet the team.
Matt Byrne
Founder & Director
Matt is the founder of Day One Advisory and has a passion for working closely with business owners to help them achieve their goals.
Originally from Busselton in South West WA Matt now lives in Melbourne with his young family. When not working Matt is working on something around the house, taking his daughter to swimming lessons, walking the dog or travelling somewhere warmer than Melbourne.
Matt is a Chartered Accountant, registered tax agent and has a Masters of Tax Law.
Katy Luo
Client Manager
Katy, originally from Beijing, loves returning to her hometown and traveling around Southeast Asia with her husband to visit family, indulge in delicious food, and fill her suitcase with as much shopping as she can.
Back home in Gisborne, Katy enjoys cooking, organising her pantry and fridge (she has a bit of OCD and loves labelling everything), keeping her garden under control, and going out with friends. She also manages her own Airbnb in Lakes Entrance, where she enjoys hosting guests and making sure they follow her detailed instructions and recommendations.
Katy is a Chartered Accountant with 15+ years working with SMEs.
Joy Talapiero
Bookkeeper
Joy likes to live a simple life in the country in the Western Visayas Region of the Philippines. She spends time with her nieces and hanging out with friends. Joy loves to travel and wants to see more of the world.
Joy has a degree in Accounting Technology from the University of Bacolod City and has ~10 years of experience as a bookkeeper with Australian SMEs.
Lauren Leigh
Admin
Born and raised in New Zealand, Lauren moved to Australia at 16 with her family, eventually settling in Brisbane where she now spends her days wrangling two adorable little girls.
As the go-to for all things admin and organisation at Day One Advisory, she thrives on streamlining processes, tackling new challenges, and keeping everything running smoothly. Before this, she spent a decade running a thriving business alongside her husband of 8 years.
Lauren loves camping in the cold, sipping red wine, sneaking dark chocolate after the kids are asleep, trying new food and exploring new places with her little family.
Proud sponsors of.
Mums Supporting Families in Need’s (MSFIN) mission is to provide good quality recycled and new goods to families in need, to ensure every child has access to their basic daily needs.
They operate from Seaford (Matt’s home turf) helping families in the surrounding area. We’re proud to sponsor a charity making a real difference in our local community.