
BAS & GST
GST registration, monthly, quarterly and annual BAS, PAYG withholding and instalments, prepared and lodged by a registered tax agent.
Learn moreBookkeeping
Hiring your own in-house bookkeeper can be costly, and for most businesses it is unnecessary. Let Ross Accounting keep your books up to date so you have more time for your business, and for yourself.

In short
Ross Accounting provides bookkeeping for small and medium businesses across Australia: payroll, cash flow, GST, reconciliations, BAS and forecasting in Xero and MYOB. Up-to-date books matter because the ATO generally requires business records to be kept for 5 years, and under Payday Super, from 1 July 2026 employers generally need each super guarantee contribution to reach the employee's fund within 7 business days after payday.
We are certified bookkeepers committed to growing your cash flow. We automate your online bookkeeping so your financial records are always current, your BAS is lodged on time and you can see how your business is really performing.
We use Xero and MYOB to keep full transparency and accuracy over all of your financial records, and can work with the software you already use. Our bookkeeper Angela Ross has worked with many small businesses using MYOB, QuickBooks and Xero. See our Xero and MYOB service for set-up, conversions and training.
Your business activity statement (BAS) is only as accurate as the books behind it. The GST you collect on sales, the GST credits you claim on purchases and the PAYG withholding from wages all come straight out of your bookkeeping file, so a reconciled file makes the BAS a review rather than a scramble.
Under the ATO's rules for 2026–27, a business must register for GST when its current or projected GST turnover is $75,000 or more ($150,000 or more for non-profit organisations), and registration is due within 21 days of becoming required to register. Keeping turnover tracked month by month is part of good bookkeeping.
| Cycle | Who it generally applies to | Due date |
|---|---|---|
| Monthly | GST turnover of $20 million or more, businesses the ATO directs to report monthly, or businesses that choose to | 21st day of the following month (a July BAS is due 21 August) |
| Quarterly | GST turnover under $20 million | 28 October, 28 February, 28 April and 28 July |
| Annual | Voluntarily registered for GST with GST turnover under $75,000 ($150,000 for non-profits) | 31 October (28 February if no tax return is required) |
If a due date falls on a weekend or public holiday, lodgement and payment are due on the next business day. Lodging online, or through a registered tax or BAS agent, can mean more time for some quarterly BAS, but not for the October to December quarter, which already includes an extension. The BAS lodgement due dates guide and our BAS and GST service cover this in more detail.
For 2026–27, the first quarterly BAS (July to September 2026) is due on 28 October 2026 under the ATO's standard dates.
Every business is legally required to keep records of the transactions behind its tax, super and registration affairs, from start-up through to sale or closure. Under the ATO's record-keeping rules as they stand in 2026–27, most records must be kept for 5 years, generally counted from when the record was prepared or obtained or the transaction was completed, whichever is later. Some records have a different starting point, and the ATO notes that ASIC requires companies to keep records for 7 years.
At a minimum, a record generally needs to show:
Where an expense is partly private, the records need to show the business portion clearly. Records must be in English (or easy to convert), protected from being altered, and available to the ATO on request, and a business that changes its record-keeping system needs to be able to reconstruct the original data. Cloud bookkeeping in Xero or MYOB, with receipts attached to each transaction, makes these rules much easier to meet. Read more in our business record keeping guide.
If you have employees, payroll is usually the most time-sensitive part of the books. Single Touch Payroll (STP) is mandatory: each time you pay staff, your STP-enabled payroll software sends salaries and wages, PAYG withholding and super information to the ATO. At the end of the financial year the STP data has to be finalised so employees' income statements show as tax ready.
Payday Super started on 1 July 2026 and changes how super guarantee is paid for earnings paid from that date. In general terms, for 2026–27:
Because payment now has to line up with each pay run, payroll and bookkeeping need to happen together. Our payroll service and the Single Touch Payroll and Payday Super guides explain the detail.
Clients can send receipts and documents through the MyAccountants app on their phone (accountant code "Ross"), or bring them into our Brookvale office. Because bookkeeping, BAS, financial statements and tax returns are done by the same team, the figures flow straight through to year-end without being re-keyed.
We look at your business, your software and how often you report, and agree what you would like us to take on.
We set up Xero or MYOB, connect bank feeds and bring any overdue reconciliations up to date.
Transactions are coded, invoices and payments processed, pay runs completed and accounts reconciled through the period.
We prepare your BAS from the reconciled file and lodge it, and give you reports and forecasts so there are no surprises.
General information only, not personal advice. Tax rules change and your circumstances matter, so talk to us before acting. See our disclaimer.
Ross Accounting works with Xero and MYOB to keep full transparency and accuracy over your financial records. The team also has experience with QuickBooks.
Yes. Ross Accounting prepares and lodges business activity statements (BAS) as part of its bookkeeping service, including GST calculations and reconciliations.
The ATO says a business generally needs to keep most tax and super records for 5 years, usually from when the record was made or the transaction was completed, whichever is later. Some records must be kept longer, and the ATO notes that ASIC requires companies to keep records for 7 years.
Under the ATO's standard dates, a quarterly BAS for 2026–27 is due on 28 October 2026 (July to September), 28 February 2027 (October to December), 28 April 2027 (January to March) and 28 July 2027 (April to June). Lodging online or through a registered tax or BAS agent can give more time for some quarters.
Since Payday Super started on 1 July 2026, employers generally must make sure each super guarantee contribution reaches the employee's fund within 7 business days after payday, instead of paying quarterly. In 2026–27 super guarantee is 12% of qualifying earnings, reported through Single Touch Payroll, so payroll and super need to be processed together every pay run.
Generally yes. Single Touch Payroll has been mandatory for employers with 19 or fewer employees since 1 July 2019, unless a deferral or exemption applies. Pay, PAYG withholding and super information is reported to the ATO through STP-enabled software each time employees are paid.

GST registration, monthly, quarterly and annual BAS, PAYG withholding and instalments, prepared and lodged by a registered tax agent.
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Pay runs, payslips, Single Touch Payroll, PAYG withholding and Payday Super handled each payday in Xero or MYOB.
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Bookkeeping in Xero and MYOB, plus help setting up, tidying and getting the most out of your accounting software.
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Balance sheets, income statements, cash flow statements and retained earnings, prepared accurately.
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Choose the right structure from day one: sole trader, partnership, company or trust.
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Individual, sole trader, company, trust and super fund tax returns, with every deduction accounted for.
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