Business Accountants in Mullumbimby, Northern Rivers. At Trekk Advisory, we believe that modern businesses deserve more from their accountant than just tax preparation. To start, we'll dive into your BAS bookkeeping and accounts to give you a full picture of where you stand. Once we have a strong foundation, there are no limits to what you can accomplish. We take that foundation and use it to help you save on taxes, grow your business and personal wealth, and achieve your ultimate goals. If your business tax is overdue, take a deep breath - we've got you covered. If the cash flow is more of a trickle than a flow, we're already rolling up our sleeves to find a solution. Whether you're just starting out or looking to sell your business, we're your reliable advisor throughout your entire journey. You're never alone with Trekk Advisory by your side.