How New Zealand accounting firms manage provisional tax
The first independent survey of its kind. 334 accountants. Real data on the pressure points, the workarounds, and what needs to change.
In partnership with CA ANZ and The Curiosity Company · July–August 2026
New Zealand’s provisional tax system is working - but not well enough
There's been limited independent research on how accounting firms actually experience provisional tax management. TMNZ and CA ANZ commissioned this survey to change that.
Get the full picture
334 accountants. Real challenges. Practical findings. Free to download.
WHAT THE RESEARCH FOUND
Three findings every accounting firm needs to know
The findings are consistent across firm size, role, and years of experience. This isn't one practice's problem. It's the sector's.
FINDING 1 – TIMING & CASHFLOW
The calendar isn't designed for how businesses work
75% of accountants report their heaviest workload in the April/May P3 window — simultaneously managing year-end, GST returns, and provisional tax from incomplete data. And 77% say the 15 January date is particularly hard for clients, falling mid-summer when cash is tight.
These aren't edge cases. 81% agree clients would benefit from more flexible payment options.
“The workload over this three-week period is horrendous. You are already busy with GST returns, then a large portion of your clients expect you to basically do their accounts before 7 May.” – Survey participant
FINDING 2 – ADMIN BURDEN
Skilled people, spending time on work that adds no value
68% of accountants spend up to 2 hours per client per year on provisional tax administration. More than half manage 50+ clients. That's a significant, largely invisible workload — much of it manual.
78% of client management is concentrated around payment deadlines. That's time that could be spent on advice — if the tools and the system allowed it.
“It can be time-consuming, particularly when there are no changes to the provisional tax, to review this for every client; it takes a massive amount of time for our workers.” – Survey participant
FINDING 3 — THE WAY FORWARD
The fix is targeted - not a ground-up rebuild
Accountants aren't calling for revolution. They want practical changes: more flexible payment timing, simpler estimation rules, higher thresholds, and better technology. 75% are looking for a real-time client dashboard to support proactive tax management.
73% expect greater automation to be the biggest shift in the next 2–3 years. The tools are coming. The question is whether firms are ready.
“The system doesn't need to be rebuilt. It needs to be updated and better supported by the tools and technology that make proactive management practical, not just possible.” – Matt Edwards, CEO, TMNZ
FOREWORDS FROM THE REPORT’S CO-AUTHORS
In their own words
It is worth noting that not everyone thinks the system is broken, and any reform should be careful not to disrupt what is working. But the case for practical, evidence-based change is well made. We will share the research findings with Inland Revenue and use to initiate meaningful policy conversations.
John Cuthbertson
NZ Tax and Financial Services Leader, CA ANZ
What this research makes clear is that the biggest barriers in provisional tax management aren't really about tax knowledge. They're about timing, visibility, and the tools available to act on information quickly. It's a system issue – not a capacity issue.
Matt Edwards
Chief Executive Officer, TMNZ
Want to talk through what this means for your firm?
We've unpacked the key findings with our research partners – covering what the data means for your firm, your clients, and the future of provisional tax management in New Zealand. Practical. Honest. Worth your time.
ABOUT THE RESEARCH
Who’s behind the report
Three organisations. One goal – better data for a better system.
New Zealand's leading digital tax payment platform, trusted by more than 2,000 accounting firms and 100,000 taxpayers. Founded in 2003 as the world's first tax pooling intermediary. An Inland Revenue Digital Services Provider and the exclusive tax payment partner of both CA ANZ and ATAINZ.
One of the leading professional accounting bodies in the Asia-Pacific region, supporting more than 140,000 members globally — including 37,000 across New Zealand. CA ANZ works closely with government and the profession to advance a tax environment that is fair, practical, and fit for purpose.
Independent research partner.
A New Zealand research and insights agency that helps decision-makers make better decisions. Led by Carl Davidson and Ann Thompson, the firm designs research programmes that uncover behaviours, beliefs, and blind spots — and deliver insight built for action.
FAQs
334 accountants across New Zealand, from sole practitioners to large firms. The survey was conducted online by The Curiosity Company (an independent NZ research agency) between 21 July and 9 August 2026, and distributed via TMNZ, CA ANZ, and ATAINZ channels. Respondents spanned all regions and experience levels, with 54% at Partner or Director level and 54% with more than 20 years in public practice.
Absolutely - simply provide a link to this page, where they can download the report for free. Share it with colleagues and use the findings in client conversations. If you'd like to talk through what the research means for your firm, get in touch with our team.
TMNZ connects directly with Inland Revenue as a Digital Services Provider, giving your firm real-time visibility of client tax positions and automated payment workflows. You can smooth payments, defer instalments, or retrospectively cover a missed or underpaid payment all without Inland Revenue's interest and late payment penalties. It's the flexibility your clients need, built into the way your firm already works. See how it works.
Tax pooling is a government-approved system that gives businesses more flexibility in how and when provisional tax is paid. Instead of paying Inland Revenue directly on fixed instalment dates, payments go into a pool account held at Inland Revenue and managed by a registered intermediary. Payments are date-stamped on arrival, so they're recorded as on time, even if the final tax position isn't confirmed until later. At year end, once the liability is known, the right amount is transferred to the taxpayer's Inland Revenue account. Because tax positions vary across businesses, overpayments from one taxpayer can offset shortfalls from another — which is why interest rates through tax pooling are more competitive than Inland Revenue's use-of-money interest rate, and late payment penalties can be eliminated entirely. TMNZ was the first registered intermediary, established in 2003, now operating New Zealand's largest tax pool up to $10 billion. Learn more at tmnz.co.nz/tax-pooling
Download the report
Fill in your details and we'll send it straight to your inbox.
WANT TO KNOW MORE