Maximising Deductions: ATO’s 2025 Tax Time Toolkit

Tax time can be overwhelming for small business owners—but the Australian Taxation Office (ATO) wants to make it easier. Each year, the ATO releases a Tax Time Toolkit, and the 2025 edition is packed with practical advice to help business owners maximise deductions and lodge accurately.

In this article, we break down the key elements of the ATO’s 2025 toolkit and how small businesses in Penrith and Western Sydney can use it to claim every eligible deduction this financial year.


1. What Is the ATO’s Tax Time Toolkit?

The ATO’s Tax Time Toolkit is a free collection of fact sheets, checklists, and guidance tailored to help small businesses prepare for the end of financial year (EOFY).

In 2025, the toolkit includes:

  • Home-based business expenses

  • Motor vehicle claims

  • Depreciating assets and instant asset write-off

  • Travel deductions

  • Record-keeping best practices

It’s designed to reduce confusion and help you avoid common mistakes when preparing your tax return or BAS.

πŸ’‘ Find the toolkit at ato.gov.au.


2. Most Valuable Deductions in the 2025 Toolkit

Here are the key areas where many small businesses can maximise deductions:

βœ… Home-Based Business Expenses

If you work from home—part-time or full-time—you may be able to claim:

  • A portion of internet and electricity

  • Mobile and landline phone expenses

  • Office furniture and equipment

  • Cleaning and maintenance of the work area

πŸ’‘ You’ll need to keep a diary for 4 weeks to show work-related use.


βœ… Motor Vehicle Expenses

There are two main methods:

  • Cents per kilometre (up to 5,000km)

  • Logbook method (based on business-use percentage)

Common claims:

  • Fuel and oil

  • Registration and insurance

  • Loan interest and depreciation

  • Repairs and servicing

πŸ’‘ If you’re using the logbook method, ensure it’s updated every 5 years.


βœ… Depreciating Assets

The toolkit covers rules around:

  • Depreciation for business assets over $20,000

  • The instant asset write-off for assets under $20,000 installed by 30 June 2025

  • Pooling assets for simplified depreciation

πŸ’‘ Even software subscriptions or upgrades can be depreciated if used for business purposes.


βœ… Travel Expenses

Business travel, including overnight trips, is deductible.

Claims may include:

  • Airfare and accommodation

  • Car hire and taxi/rideshare fares

  • Meals (only if overnight and away from home)

  • Conference or seminar costs

πŸ’‘ You’ll need written evidence like receipts and travel diaries if away for more than 6 nights.


3. What the Toolkit Says About Record-Keeping

The ATO is clear: No records = no deductions.

Best practices include:

  • Using digital accounting software like Xero or MYOB

  • Keeping receipts for at least 5 years

  • Scanning paper records and saving them to cloud storage

  • Separating personal and business expenses with dedicated bank accounts

πŸ’‘ If you don’t have a system yet, ask your Penrith accountant for help setting one up before 30 June.


4. How to Use the Toolkit Effectively

Here’s a simple plan to use the ATO toolkit before tax time:

πŸ”Ή Step 1: Download the Toolkit

Visit the ATO’s official site and download the small business version of the 2025 Tax Time Toolkit.

πŸ”Ή Step 2: Identify Relevant Fact Sheets

Choose the guides that apply to your business structure, industry, and operations (e.g. home-based business, sole trader, company).

πŸ”Ή Step 3: Conduct a Pre-Tax Review

Sit down with your accountant or bookkeeper and:

  • Review all major purchases and expenses

  • Ensure all income is recorded

  • Verify that you have supporting documentation for each claim

πŸ”Ή Step 4: Lodge Early or with an Agent

Lodging early ensures faster refunds and gives you time to fix any errors before the ATO gets in touch.


5. Penalties for Incorrect Claims

If you claim something without evidence, the ATO can:

  • Disallow the deduction

  • Apply interest and penalties

  • Flag your business for future review or audit

Being overconfident at tax time can cost far more than hiring a professional to do it properly.

πŸ’‘ If in doubt, consult a local accountant in Penrith who understands the ATO’s expectations.


Conclusion

The ATO’s 2025 Tax Time Toolkit is one of the most useful resources available for small business owners—yet many don’t know it exists. By using it proactively, you can claim the deductions you’re entitled to while staying fully compliant.

Need help applying the toolkit to your business? Carmody Accounting supports small businesses across Penrith and Western Sydney with accurate, efficient, and strategic tax planning.

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