Quarterly Newsletter: April 2026

Know when a new logbook is required

Keeping a car logbook may be required to accurately calculate the business-use percentage of vehicle expenses (e.g., fuel, registration, insurance and depreciation) for tax deductions.

Taxpayers can keep the same logbook for their car for five years, but there are circumstances where they may need a new one during that period.

Relying on a logbook that no longer represents a client's work-related travel may result in them claiming more, or less, than they are entitled to.

A new logbook may be required when a taxpayer:

• moves to a new house or workplace — updating their residential or work address may then be necessary;

  
  

• has changes to their pattern of use of the car for work purposes — checking that they are still doing the same role and routine may then be necessary.

Taxpayers using the logbook method for two or more cars need to keep a logbook for each car and make sure they cover the same period.

Clients who purchase a new car during the income year and want to continue relying on their previous car's logbook must make a nomination in writing. The nomination must be made before they lodge their tax return and state:

• they are replacing their original car with a new car; and

• the date that nomination takes effect.

Taxpayers should remember that, if their employer provides them with a car or they salary sacrifice a car using a novated lease, they are not entitled to claim work-related car expenses using the logbook or cents per kilometre method, as they do not own the car.

When claiming car expenses using the logbook method, taxpayers also need to keep various types of other records, including (among other things) odometer records for the start and end of the period they own the car, proof of purchase price, decline in value calculations, and fuel and oil receipts (or records of a reasonable estimate of these expenses based on odometer readings).

Please contact our office if you require assistance regarding the above, including in relation to claiming car expenses using the logbook method or determining if a new logbook is required.

Work-related expense claims rejected by ART

The Administrative Review Tribunal ('ART') recently disallowed a taxpayer's claims for many different types of work-related expenses.

The taxpayer was employed full-time as an engineer, working from home two days a week. For the 2023 income year, he claimed deductions totalling over $61,000, in relation to (among other things) car expenses, travel expenses, clothing expenses, and home office expenses, all of which he claimed were work-related.

The ATO largely disallowed these deductions, and the ART affirmed the ATO's decision, primarily due to problems with substantiating these claims.

For example, in relation to the car expenses, the ART noted that none of the log books were contemporaneous, and the log book entries were inconsistent with independent records (e.g., car service records).

In relation to travel expenses (taxi and Uber fares), the ART noted that the taxpayer did not provide evidence clearly identifying which travel expenses had been reimbursed by his employer, and the ride share documentation did not include the date, time or destination of travel.

In relation to home office utility expenses, the ART noted that the taxpayer only provided calculations estimating the business use proportion of those expenses, without providing any documentary evidence to substantiate the expenses themselves. In any case, the ART was not satisfied that the taxpayer's apportionment of those expenses was fair and reasonable.

Paying Super Guarantee

The ATO is reminding employers that they must pay super guarantee ('SG') contributions for eligible employees.

Employers need to pay a minimum of 12% (the current SG rate as from 1 July 2025) of each employee's ordinary time earnings into a complying super fund on a quarterly basis (the due date for the March 2026 quarter is 28 April 2026).

In most cases, employees can choose the super fund.

Employers who do not pay in full, on time or to the correct super fund will have to pay the SG charge, which is made up of the super they owe, nominal interest on those amounts (currently 10%), and an administration fee of $20 per employee, per quarter.

These payments must be made through SuperStream (where super payments and information move through the system electronically).

Employers who use the Small Business Superannuation Clearing House to make super contributions should note that this service will be permanently closed from 1 July 2026. Existing users should switch to an alternative method to pay their employees' super guarantee.

Also, when new employees start, employers may have an extra step to take to comply with the 'choice of fund rules' if the new employee does not choose a super fund. Employers may now need to request the new employee's 'stapled super fund' details from the ATO.

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Please Note: Many of the comments in this publication are general in nature and anyone intending to apply the information to practical circumstances should seek professional advice to independently verify their interpretation and the information’s applicability to their particular circumstances.