Cash Basis Person Changes
Some Common Sense for Taxpayers
The Taxation (Annual Rates for 2025–26, Compliance Simplification, and Remedial Measures) Act has now been enacted.
While it includes the usual mix of annual rates, remedial fixes and tidy-ups, one area stands out to us from a practical perspective – changes to the cash basis person rules.
What is the cash basis person exemption?
Under the financial arrangement rules, taxpayers are generally required to recognise income and expenditure on an accrual basis – spreading income or expenditure over time regardless of when cash is received or paid.
For smaller taxpayers, this can be unnecessarily complex. The cash basis person exemption is designed to allow qualifying taxpayers to instead account for financial arrangements on a cash (receipts and payments) basis (in theory) avoiding most of the spreading and wash-up calculations.
Pre-2026 Rules
Before the recent changes, a person qualified as a cash basis person if they satisfied all three of the following tests:
- Income threshold:
Total income from all financial arrangements was $100,000 or less for the income year; OR - Financial arrangements threshold:
The absolute value of all financial arrangements (e.g. loans, mortgages, shareholder current accounts) was $1 million or less - AND meet the Deferral test:
The difference between income calculated under the accrual rules and the cash basis did not exceed $40,000. This was a cumulative calculation and had to be monitored from year to year.
If these thresholds were breached, the taxpayer was required to apply the full financial arrangements regime.
In practice, it was often the $1 million threshold and the deferral test that caused the real issues. Even where a taxpayer ultimately qualified as a cash basis person, they still had to perform accrual calculations simply to test whether they breached the deferral threshold. In effect, they were required to do the full financial arrangements calculations just to confirm they did not need to do them.
What Has Changed?
The 2026 Act makes three key changes to how the cash basis person regime operates:
- Income threshold doubled
The income threshold has been increased from $100,000 to $200,000.
This brings more individuals and small businesses within the regime and better reflects current income levels in practice. - Financial arrangements threshold doubled
The absolute value threshold for financial arrangements has increased from $1 million to $2 million. - The deferral test has been abolished
The deferral test has been removed entirely. In our view, this is the best change of all and very welcome.
The deferral test was:
- Difficult to explain
- Often overlooked in practice
- A source of technical risk
- In many cases, added compliance cost without affecting the outcome
Its removal significantly simplifies the analysis. In most cases now, eligibility will come down to the income threshold and the financial arrangements threshold.
When Do These Changes Apply?
These changes apply from the 2026 income year (FY26).
A Key Watchpoint: Switching Between Accrual and Cash Basis
One of the most important (and often overlooked) aspects of these changes is what happens when a taxpayer moves between methods.
If a taxpayer:
- Previously did not qualify and was applying accrual rules, but
- Now qualifies as a cash basis person under the new thresholds
There is no simple “switch over”.
A wash-up adjustment (effectively a base price adjustment type calculation) is required to ensure that:
- Income and expenditure are not omitted or double counted
- Timing differences are correctly recognised
That adjustment can result in:
- Additional taxable income, or
- Deductions being brought forward or deferred
In some cases, the adjustment can be material. So while moving to a cash basis will often reduce compliance going forward, it is not automatically beneficial from a tax payable perspective in the year of transition.
Practical Implication
For clients who now fall within the expanded thresholds:
- It is worth reassessing whether they can move to a cash basis
- But it is equally important to assess whether they should
In particular:
- Clients already on accrual accounting may face a one-off tax cost on transition
- The benefit of simplification needs to be weighed against that cost
This is a case where running the numbers before making a decision is essential. We are happy to work through the calculations with you and advise on the most appropriate approach.
Variable Principal Debt Instruments: Threshold Increase
Alongside the cash basis person changes, the Act also makes a useful update to the variable principal debt instrument (VPDI) rules.
What Has Changed?
The threshold for VPDIs has been increased from $50,000 to $100,000. Remember this threshold applies to all of a taxpayer’s VPDIs (the cumulative total), not on an individual basis.
This expands the range of smaller foreign currency bank accounts and loans that can fall within this simplified treatment.
What is a Variable Principal Debt Instrument?
A variable principal debt instrument is, broadly, a loan where:
- The account or loan is denominated in a foreign currency, and
- The New Zealand dollar value of the principal varies as exchange rates move
A common example is a client with a USD bank account. Under the standard financial arrangements rules, any FX movements may result in foreign exchange gains or losses that need to be calculated annually and recognised for tax purposes.
Why the VPDI Rules Matter
Where a loan qualifies as a VPDI within the threshold, it is treated as an excepted financial arrangement.
This is an important distinction. It is not just a timing difference, it is a full exclusion from the financial arrangement rules for that instrument.
What Should You Do Now?
This is a good opportunity to:
- Revisit clients previously just outside the thresholds
- Simplify financial arrangement treatments where possible
- Ensure no one is continuing to apply rules they no longer need to
If you are unsure whether a client now qualifies as a cash basis person, it is worth revisiting - the answer may have changed.
If you would like to understand how these changes could affect your business or existing financial arrangements,
please get in touch with us.
Disclaimer:
The information provided in this article is general in nature and does not constitute personalised tax advice. You should consult with a qualified tax adviser familiar with New Zealand tax rules before making decisions based on this content.











