FBT: Benchmark interest rate

The benchmark interest rate for the FBT year commencing on 1 April 2019 is 5.37% per annum (up from the rate of 5.20% that applied for the previous FBT year).

This rate is used to calculate the taxable value of:

  • a fringe benefit provided by way of a loan; and
  • a car fringe benefit where an employer chooses to value the benefit using the operating cost method.


On 1 April 2019 an employer lends an employee $50,000 for five years at an interest rate of 5% p.a. with interest charged and paid six-monthly, and no principal being repaid until the end of the loan.

The actual interest payable by the employee for the current year is $2,500 (i.e., $50,000 x 5%).

However, the notional interest, with a 5.37% benchmark rate, is $2,685, so the taxable value is $185(i.e., $2,685 – $2,500).






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