We know the juggle is real when running a small business! Between tax deadlines, BAS lodgements, and super payments, it’s easy for those key dates to sneak up on you.

But here’s the thing—getting your calendar sorted now can save you a heap of stress later. Think fewer last-minute scrambles, more smooth sailing. 

So, grab your planner (or your digital calendar), and let’s lock in those must-know dates for 2025. Your future self will thank you!

Why Staying Ahead with Your Bookkeeping Matters

Before we get into the dates, let’s talk about why being prepared matters so much. 

Small business owners wear many hats – marketing, operations, sales – and bookkeeping can sometimes fall to the bottom of the priority list. But here’s the truth: staying on top of your bookkeeping can save you time, money, and headaches down the line.

Missing key dates can result in penalties from the Australian Taxation Office (ATO) or missed opportunities for deductions. By marking your calendar now, you’re giving yourself a head start to keep your finances in order.

Here’s What Staying Prepared Means for You:
  • Peace of mind knowing your ATO obligations are covered
  • More time to focus on growing your business (instead of chasing deadlines)
  • Better cash flow management—no more surprise payments throwing off your budget

Sound good? Let’s get into the key dates you need to know for 2025. Grab your calendar—it’s time to get organised!

Key Financial Dates to Lock In for 2025

Let’s make life a little easier, shall we? Here are the key dates every small business owner in Australia needs to know. From tax deadlines to super payments, these dates will help you stay compliant, avoid penalties, and keep your business running smoothly.

January 2025
  • 21 JanuaryDecember Monthly BAS (Business Activity Statement) due for businesses lodging monthly.
  • 28 JanuaryQuarterly Superannuation Guarantee (SG) payments due for October-December 2024 quarter.
February 2025
  • 21 FebruaryJanuary Monthly BAS due.
  • 28 FebruaryLodge your quarterly BAS (Q2) for October-December 2024 if you’re lodging quarterly.
  • 28 FebruaryIncome Tax Lodgement and payment due date (for self preparing entities that were not due at an earlier date, for companies (taxable and non-taxable) that are new registrations, for medium to large trusts that were non-taxable in the latest year lodged unless required earlier).
  • 28 FebruaryAnnual GST return or Annual GST information report (if required) if no tax agent is used.
  • 28 February Super guarantee contributions for quarter 2 made to fund by this date. 
March 2025
  • 21 MarchFebruary Monthly BAS due. 
April 2025
  • 28 AprilQuarterly Superannuation Guarantee (SG) payments due for January-March 2025 quarter.
  • 28 AprilLodge your quarterly BAS (Q3) for January-March 2025 if you’re lodging quarterly. 
May 2025
  • 12 MayQ3 BAS Electronic Lodgement and payments due (Final date for lodgement (this is the two week extension after paper return due date for businesses who are lodging their own BAS electronically).
  • 21 MayApril Monthly BAS due.
  • 21 MayLodge and pay Fringe benefits tax return.
  • 21 MaySuper guarantee charge statement Q3 (January to March) quarterly if you did not pay your contributions on time.
June 2025
  • 21 JuneMay Monthly BAS due.
  • 25 JuneLodge and pay Fringe benefits tax return if prepared by tax agent and lodged electronically.
  • 30 June End of Financial Year.
July 2025
  • 1 JulyStart of the new financial year. A great time to review your bookkeeping processes!
  • 1 JulyEmployee Share Scheme statements to be sent to employees.
  • 14 JulySTP finalisations due.
  • 21 JulyJune Monthly BAS due.
  • 28 JulyQuarterly Superannuation Guarantee (SG) payments due for April-June 2025 quarter. 
August 2025
  • 1 AugustAugust fuel tax credit rates change.
  • 11 AugustLodge your quarterly BAS (Q4) for April-June 2025 if you’re lodging quarterly.
  • 14 AugustPAYG withholding annual report due.
  • 21 AugustJuly Monthly BAS due.
  • 21 August Final date for eligible monthly GST reporters to elect to report GST annually.
  • 30 AugustTaxable payments annual report due (Summary of all payments to contractors for the following industriesbuilding and construction services, cleaning services, courier services, road freight services, information technology services, security, investigation or surveillance services and govt entities).
September 2025
  • 21 SeptemberAugust Monthly BAS due. 
October 2025
  • 21 OctoberSeptember Monthly BAS due.
  • 21 OctoberAnnual PAYG instalment notice – final date for payment and, if using the rate method or varying the instalment amount, final date for lodgement.
  • 28 OctoberLodge your quarterly BAS (Q1) for July-September 2025 if you’re lodging quarterly by paper (If you lodge electronically you get 2 extra weeks, if you lodge with an agent you get 4 extra weeks.)
  • 28 OctoberQuarterly Superannuation Guarantee (SG) payments due for July-September 2025 quarter.
  • 31 OctoberLodge and pay Self-managed superannuation fund annual report for (taxable and non taxable) new registrant SMSF if th ATo advised that the first year return has a 31 Oct due date.
  • 31 OctoberDeadline to lodge income tax return for sole traders, partnerships, Trust for the financial year if not lodging through a registered agent. 
November 2025
  • 11 NovemberQ1 (July – September) BAS electronic lodgement & payments due.
  • 21 NovemberOctober Monthly BAS due. 
December 2025
  • 1 DecemberIncome Tax Payment due (for companies that were taxable medium to large clients in the immediate prior year, companies required to lodge by 31 October and for non-full  assessment company entities).
  • 21 DecemberNovember Monthly BAS due.

Why Early Prep Is a Game-Changer

Let’s face it—nothing kills productivity like a last-minute scramble to meet deadlines. Staying ahead of key financial dates isn’t just about ticking boxes; it’s about giving yourself the breathing room to actually focus on growing your business.

When your books are up to date and compliance is sorted, you’re less likely to miss out on valuable deductions, and you avoid that dreaded knock from the ATO.

Want to make life even easier? Partnering with a bookkeeping service means your records stay organised, your deadlines are never missed, and you get peace of mind knowing your business is in good hands.

Tips to Stay Organised in 2025

  • Set recurring reminders
    Use your digital calendar to set reminders at least a week before each due date. This gives you time to double-check everything and avoid any last-minute panic.
  • Work with a bookkeeper
    A pro can take the stress out of managing BAS lodgements, super payments, additional time for quarterly BAS lodgements and more, so you can focus on what you do best.
  • Review your finances monthly
    Regular check-ins with your finances will help you stay on track, spot any issues early, and avoid cash flow surprises.
  • Use accounting software
    Tools like Xero can automate a ton of tasks – think BAS, payroll, and super payments – making compliance stress-free and your processes streamlined.

Don’t let deadlines sneak up on you!

The key to a stress-free 2025? Preparation. By locking in your financial dates now—and partnering with Dollars + Sense—you’ll stay ahead of deadlines, avoid penalties, and free up time to focus on growing your business.

We’ll handle the bookkeeping, BAS lodgements, and super payments—so you don’t have to.