By February, the same issues often resurface. For example, a vehicle treated as a pool vehicle has been taken home overnight; a logbook relied on earlier in the year no longer reflects actual use; policies exist, but no one is certain they have been followed consistently.

None of this is deliberate. It reflects the way FBT may be managed – as an annual “clean-up” exercise, with limited tax review until attention turns to the March FBT return.

This piece focuses on FBT compliance issues that commonly emerge late in the FBT year, why they arise, and what action can be taken before 31 March.

FBT as an annual afterthought

In practice, FBT compliance often sits outside day-to-day tax decision-making. Benefits such as motor vehicles and low-interest loans may be provided for operational reasons, with tax treatment considered later. Record-keeping responsibilities are frequently split across payroll, fleet management, and finance teams, increasing the risk that tax assumptions made earlier in the year are not consistently applied in practice.

As a result, FBT issues are often identified only at year-end, when positions are being reviewed or the final return is being prepared. By that point, the focus often shifts from managing risk to explaining outcomes.

The reality for quarterly filers

For entities filing quarterly FBT returns, the return for the quarter ended 31 March is typically the most important. Although FBT is returned throughout the year, the March quarter often functions as a wash-up for the full FBT year. It is usually where the most accurate calculations are made, once full-year information is available, and where inconsistencies from earlier quarters are identified and corrected. 

However, the March quarter return is still constrained by the fact that the FBT year has ended. While calculations can be refined and errors corrected, underlying factual matters, such as how vehicles were actually used or whether adequate records exist, cannot be changed retrospectively. This makes February and March a critical review period.

Common late-year FBT issues

Motor vehicles remain a key risk area. Problems frequently arise from misunderstandings about availability versus actual use, reliance on outdated or non-compliant logbooks, and assumptions that vehicles qualify as pool vehicles when actual practice does not support that position. Stand-down days and business-only use are also commonly asserted without sufficient supporting evidence.

Benefit classification issues are another common theme. Benefits may be treated as exempt without ongoing confirmation that the exemption criteria continue to be met, or benefits may be overlooked entirely. Inconsistent treatment across quarters often indicates that classifications have not been revisited during the year.

Record-keeping weaknesses underpin many of these issues. Policies may exist but are not monitored or followed in practice, or records are incomplete. Where FBT positions are reviewed, these factual gaps often matter more than the technical analysis.

What can still be reviewed before 31 March

While some matters cannot be changed after year-end, there are still meaningful steps that can be taken before 31 March.

Motor vehicles are an obvious starting point. Reviewing how vehicles have actually been used during the year, and whether that aligns with existing policies, logbooks, and exemptions applied, can help identify gaps early. Where logbooks are outdated, steps should be taken to correct this. 

Benefit classifications should also be reviewed. This includes confirming whether benefits treated as exempt continue to meet the relevant criteria, and whether all benefits provided during the year have been identified and consistently treated.

Documentation is another area where late-year attention can make a difference. Improving the quality of records supporting FBT positions, such as evidence of usage, internal policies, or support for valuation methods applied, may not change past behaviour, but it can materially improve the defensibility of the final return.

For quarterly filers, February and March also provides an opportunity to review calculations or positions adopted in earlier quarters, so that the March quarter ‘wash-up’ accurately reflects the full year and avoids unexpected adjustments when the final return is prepared and filed in May. 

Preparing for the next FBT year

Late-year reviews are not only about the current FBT year. Identifying where assumptions or processes have broken down provides an opportunity to improve systems before the new FBT year begins on 1 April.

This may include clarifying responsibilities between teams, updating policies so they better reflect actual behaviour, or improving how benefits are tracked during the year. Addressing these issues now reduces the likelihood that the same problems will recur next year.