Missed your latest provisional tax payment? How you can find relief
Forgot to pay your provisional tax? Or maybe cashflow was tight and you couldn’t quite make the payment work? Either way, you’re not alone. And more importantly, you’re not out of options.
If you own a business, you know provisional tax and its inflexibility all too well. Miss a due date and the penalties and interest start piling up fast. But here’s the thing – there’s relief available, with TMNZ.
Let us show you how we can help.
What happens when you miss that payment?
When you pay provisional tax late or don’t pay enough by the due date, Inland Revenue (IRD) charges penalties and interest on your unpaid amount:
- A 1% late payment penalty (LPP) kicks in the day after the due date
- An additional 4% penalty hits seven days later – and that’s on top of any existing penalties
- 9.89% UOMI (use of money interest) gets charged daily from the day after the due date until you’ve paid everything, including penalties and interest.
The costs add up quickly. But there’s a way around this.
Enter TMNZ – your relief option
TMNZ pioneered tax pooling – a world-first, and IRD-approved solution. Here’s how it works.
We pool provisional tax payments from multiple businesses in an account we hold as a registered tax pooling intermediary. When one business needs more time to pay, another business’s overpayment covers them. Business helping business.
Because we can backpay your unpaid tax, IRD no longer sees it as a ‘late payment.’ Which means you dodge those penalties and fees entirely.
Whether you simply forgot to pay or cashflow got tight, TMNZ gives you breathing room. You can make a one-off payment when it suits you, or set up regular instalments – giving you up to 13 months to pay your provisional tax.
Missed your terminal tax date too? We can still help slash interest costs and wipe out late payment penalties.
The real deal
TMNZ lets you pay when it actually works for your business. There is some interest to pay – but it’s much lower than IRD’s late payment interest or what you’d pay on business overdrafts or unsecured loans. And tax pooling with TMNZ eliminates those late payment penalties entirely.
All you need to do is tell us how much tax is due and when or how you’d like to pay it. We handle the rest and notify Inland Revenue of your arrangement. Simple.
Take control of your tax payments
Whether you forgot to pay or couldn’t make the payment work with your cashflow, you’ve got options. TMNZ can eliminate those late payment penalties and give you the payment flexibility your business needs.
Contact your accountant or tax agent and let them know you want to use TMNZ’s tax pooling product for your missed or underpaid provisional tax. Or get in touch with us directly to explore your options.
Don’t let a missed payment throw your business off track. With TMNZ, you can navigate tax season with confidence and keep your cashflow working for you.
Ready to take advantage of tax pooling? Contact our team today.
Balancing your Imputation Credit Account
We’re here to make tax a bit easier. This webinar that cuts through the complexity of imputation credits and shows you how to manage your ICA when you’re using tax pooling.
What you’ll learn
- how to better manage your ICA when using tax pooling
- case studies that bring the concepts to life
- get your questions answered by our tax experts
Who this is for
This webinar is perfect for accountants and finance professionals in medium to large businesses dealing with Imputation Credit returns.
This content is for general information purposes only and should not be used as a substitute for consultation with our team of specialists.
The interest rates mentioned in our webinars were accurate at the time of original recording. Please note that IRD interest rates change over time. Always refer to current official IRD rates for the most up-to-date information
Book a tax pooling overview for your business
Is tax pooling the right solution for you? Every business we work with has different needs. Book an overview with one of our tax pooling specialists to find out how we can support you.
Five top tips for paying 28 August provisional tax
Are you due to pay 28 August provisional tax?
For most business taxpayers, your first instalment of provisional tax for the 2025 tax year is coming up. It’s important to pay what you owe on the due date. Inland Revenue won’t hesitate to charge steep interest and late payment penalties if you don’t.
If you’re a business owner or operator, here are five useful tips to ensure you’re ready to pay the first provisional tax payment for the year on the 28 August due date. For agents, you may also wish to share these tips with your clients to help them prepare.
1. Assess your cashflow
Now’s the time to look at the money coming in and going out of your business.
Cast your eyes over your accounts receivable report to see which customers owe you money. If required, ask them if they can sort their bill earlier. Conversely, see if you can buy more time if you owe suppliers money.
If cashflow is tight or you have a better use for the money, keep reading. There’s an option that lets you pay 28 August provisional tax when it suits you.
2. Be aware of the fish hooks
If you pay less than $60,000, you are what’s known as a safe harbour taxpayer. You won’t be charged interest by Inland Revenue if you pay your provisional tax late. But, you will be charged late payment penalties. You can find out more about safe harbour rules here.
3. Know your methods to calculate 28 August provisional tax
It’s important you are aware of the different methods available to calculate your provisional tax payments. For more information about the provisional tax methods available to you, see our Provisional Tax Guide.
4. Consider using tax pooling
An Inland Revenue-approved tax pooling intermediary such as TMNZ can assist if cashflow is tight. Working with us allows you to pay 28 August provisional tax at a time and in a manner that suits you, without incurring Inland Revenue interest or late payment penalties. You can defer the full payment to a date in the future or pay off what’s due in instalments.
TMNZ will date-stamp tax for you in a special trust account with Inland Revenue on your behalf. You pay TMNZ at the agreed future date or as and when it suits your cashflow, and the tax will be transferred to your account with Inland Revenue, and treated by them as being paid on time.
5. If in doubt, consult a professional
Do you have any questions about 28 August provisional tax? Seek the advice of an accountant or tax advisor. They can determine the best provisional tax calculation for your business and help you manage your payments and cashflow.
If you wish to learn more about the provisional tax payment flexibility TMNZ offers businesses, get in touch.
Get provisional tax peace of mind with TMNZ
The 28 August provisional tax payment date doesn’t need to cause stress. TMNZ offers flexible, IR-approved payment solutions that give you more control over your cashflow—without the risk of late payment penalties or use-of-money interest. Explore our full 28 August payment guide or talk to TMNZ today to find out how we can support your business this tax year.
Information in this article is correct as at 31/7/25. You should consult with your tax advisor concerning all tax matters. Read our Terms and Conditions.
TMNZ: The ultimate cashflow flexibility tool for your business
In tough economic times, it can be hard for businesses to stay on top of cashflow and juggle their tax liabilities. For companies and sole traders dealing with fluctuating cashflow and provisional tax headaches, there’s an easier way to manage your obligations—tax pooling.
Did you know TMNZ’s tax pool can help you manage your tax by matching your cashflow forecasts with your provisional tax payments? And you can use tax pool deposits as an alternative funding source when cashflow is tight.
How we can help
TMNZ is an Inland Revenue (IR)-approved tax pooling provider, meaning you can use us to pay income tax on your behalf at a time that suits you. We offer greater flexibility over how and when you pay provisional tax.
First, you’ll need to think about your cashflow forecast. If you’re unsure how to put one together, read our cashflow management guide.
Once you’ve got your cashflow projection, we can work together to figure out the best time to pay your provisional tax. From there, all you need to do is tell us your tax amount owed, the date it is due, and how you would like to pay.
When your tax bill arrives, we’ll transfer the amount required to IR on your behalf as a time-stamped payment. IR will treat your tax as if it was paid on time, eliminating the risk of being charged interest or late payment fees. Simple.
A working capital solution
TMNZ’s payments to IR mean you can keep money in your business and use it at the times of the year you’ll need it most. You can top up your payments later into our tax pool at any time.
Tax pooling is a perfect solution for businesses worried about future cashflow and looming obligations. By partnering up with us, you’ll have total control over your tax bill, rather than working around IR’s strict deadlines.
With no more late fees and interest charges from IR to think about, you can get on with running your business. There will be no need to scrape together funds in the middle of holidays or quiet periods to meet IR’s deadlines.
TMNZ can also save you money by avoiding penalties and interest charges if you’ve missed or underpaid tax. We charge much lower interest rates than the penalties imposed by IR if you’re overdue.
We’re a line of credit
Another amazing TMNZ feature is that we can be a line of credit for your business.
If you’ve deposited funds into our tax pool but find yourself short on cash, you can withdraw that money whenever you want to use it as working capital.
If you’ve paid provisional tax into our pool, you’ll have access to a working capital facility up to the value of your deposit. This provides even more flexibility for you and your team to get through a cash crunch and stay on top of debt management.
We can offer much cheaper interest rates than bank loans, overdrafts, or unsecured loans, meaning money withdrawn from our pool is better for you and your business, putting you in a stronger position at the end of the year.
Ready to learn more about the benefits of tax pooling?
Download our guide to Better Cashflow Management for top tips on managing cashflow throughout the financial year.
If you’re ready to take control of your tax and gain access to a valuable line of credit for your business, find out more at by reading our Tax Pooling 101 page to learn more about the full range of benefits of being in our pool.
Then talk to your tax adviser about TMNZ tax pooling to take away your tax management worries.
The 7 May solution
We’re excited to share with you: Tax pooling – The 7 May solution. Discover how tax pooling makes 7 May easier for your clients by reducing pressure and minimising risk. We’ll cover the latest market insights and tax pooling best practices, with real-world examples that show exactly how it works.
What you’ll learn
- fresh market insights
- how to strengthen your clients’ tax approach without straining cashflow
- tips for staying ahead of your clients’ tax needs for 2025-2026
- tax pooling benefits in action through real examples
- Q&A
Who this is for
This webinar is perfect for tax agents and accountants in public practice.
This content is for general information purposes only and should not be used as a substitute for consultation with our team of specialists.
The interest rates mentioned in our webinars were accurate at the time of original recording. Please note that IRD interest rates change over time. Always refer to current official IRD rates for the most up-to-date information.
Book a tax pooling overview for your business
Is tax pooling the right solution for you? Every business we work with has different needs. Book an overview with one of our tax pooling specialists to find out how we can support you.
Boost your business cashflow with smarter tax solutions
In this short, practical webinar see how TMNZ can help to boost business cashflow. We’ll show you how tax pooling (an IRD-approved solution) gives businesses like yours more financial breathing room and smart ways to manage cashflow. Learn from our 20+ years of experience helping 25,000+ NZ businesses to reach their goals.
What is tax pooling?
Tax pooling is a clever way for businesses looking to optimise cashflow and gain more control. By working with us, you’ll have the freedom to manage your tax payments more strategically. Instead of paying IRD directly on a given date, you can pay into the tax pool (of an Inland Revenue-approved intermediary – i.e. us) whenever you like.
Once you have paid off your tax, we’ll transfer the funds from the pool into your account at Inland Revenue, where it will show as paid on time.
What we’ll cover
- What tax pooling is and how it works
- How to get more cashflow flexibility for fueling business growth
- Smarter working capital options to reinvest in your business
- Lower cost of funds options compared to traditional financing
- Case studies from businesses just like yours
- Q&A
Who this is for
This webinar is for business owners, operators and finance professionals ready to take control of their cashflow. Perfect if you want to keep more money working in your business and turn tax time from a stress point into a strategic advantage.
This content is for general information purposes only and should not be used as a substitute for consultation with our team of specialists.
The interest rates mentioned in our webinars were accurate at the time of original recording. Please note that IRD interest rates change over time. Always refer to current official IRD rates for the most up-to-date information.
Book a tax pooling overview for your business
Is tax pooling the right solution for you? Every business we work with has different needs. Book an overview with one of our tax pooling specialists to find out how we can support you.
An accountants’ guide to TMNZ’s Dashboard
We’re excited to share with you: Tax Pooling – An accountants’ guide to TMNZ’s Dashboard. In this session, you’ll learn how to navigate our TMNZ dashboard for setting up accounts, creating tax pooling arrangements, and taking advantage of features like Tax Swaps, and Group Optimiser.
What you’ll learn
Account setup and management:
- updating personal information
- setting up client accounts (taxpayer accounts)
- accessing a firm-wide view.
Tax pooling:
- setting up a tax pooling arrangement
- Tax Swaps
- Group Optimiser.
This content is for general information purposes only and should not be used as a substitute for consultation with our team of specialists.
The interest rates mentioned in our webinars were accurate at the time of original recording. Please note that IRD interest rates change over time. Always refer to current official IRD rates for the most up-to-date information.
Book a tax pooling overview for your business
Is tax pooling the right solution for you? Every business we work with has different needs. Book an overview with one of our tax pooling specialists to find out how we can support you.
How TMNZ tech takes the pain out of tax
As New Zealand’s first ever tax pool, we’re proud of our long history of innovation. It’s at the heart of everything we do, and we’re always looking for new ways to simplify tax.
Technology has been at the forefront of our efforts, whether it’s rolling out new features for our customers, adding new functionality online, or partnering with forward-thinking digital platforms.
Recently, we’ve rolled out some amazing tools to help our customers and their accountants easily manage income tax.
Discover our top tech solutions to help you take the pain out of tax time, including tools to cut down on admin, share data between platforms, and get instant information on things like tax swaps.
Direct Inland Revenue Integration
TMNZ’s online dashboard is fully integrated with Inland Revenue (IR), meaning taxpayer information held by IR can be seamlessly shared on our platform, to make accountants lives easier.
In the past, accountants had to deal with multiple systems and spreadsheets to find accurate IR information. Integration means this admin work is no longer required.
Inland Revenue and TMNZ systems are directly connected so that key IR information is automatically populated on our dashboard. All relevant IR data, including Residual Income Tax figures, filing dates, and direct IR transactions appear on the TMNZ dashboard once you’ve logged in.
Thanks to IR integration, accountants can save time and reduce admin work. Direct IR integration also removes the risk of manual errors as clients populate information from one platform to another, making the process much more efficient.
IR information is fed into our calculator to help you determine your (or your client’s) tax position as quickly as possible.
Kathleen Payne, Partnerships Director at TMNZ, says:
“Following IR integration, all the data you need for your calculations goes straight onto our dashboard. All you have to do is put in the current year’s position that IR might not know yet, and everything is calculated without further data entry.”
If clients need any assistance with our direct IR integration, then TMNZ’s friendly support team is on hand to help. And you can find out more about IR integration here.
TaxLab integration
TMNZ is now fully integrated with TaxLab, bringing New Zealand’s leading accountants a seamless, all-in-one solution for managing tax payments to enhance provisional tax productivity, so your practice can grow.
We know that juggling multiple platforms eats into valuable time that could be better spent elsewhere – and manual processes can create costly compliance issues, for you and your clients.
Our new TaxLlab integration eliminates these pain points through automated provisional tax workflows, real-time payment visibility and bulk processing. With the click of a button you can calculate complex tax positions, view payment statuses and send reminders and tax pooling quotes, all from the one platform.
“Accountants will get a complete picture of all TMNZ transactions sitting against their clients’ tax year,” Kathleen says.
Like the IRD integration, the setup couldn’t be simpler:
- log in to TaxLab, go to ‘Settings’, and add TMNZ as a connection
- you’ll then be directed to TMNZ to log in and confirm
- from there, you’ll be able to view TMNZ tax pooling information, including a full history of purchases, deposits, transfers, and tax payments.
Integration with Taxlab reduces the time and effort spent sharing information across the two platforms, giving tax agents even more time for their valuable client work.

Group Optimiser
If you’re a busy accountant in public practice looking to manage the tax year for groups of clients, TMNZ’s Group Optimiser tool is tailor-made for you.
This innovative feature enables accountants to calculate the position of several taxpayers and create multiple transactions at once.
Used alongside IR integration, Group Optimiser can make tax calculations even simpler.
Kathleen adds:
“Instead of having to prepare spreadsheets for each member in a group and then decide who has overpaid or underpaid tax, agents can use our calculator to enter a small amount of information. Then, at the click of a button, Group Optimiser calculates how to use the tax across the group in the most effective way.”
Group Optimser is ready and waiting on the TMNZ dashboard. All you need to do is log in.
Upcoming Deadlines
The Upcoming Deadlines function on the TMNZ dashboard is another of our top tech features.
For accountants managing several tax pooling clients, the Upcoming Deadlines feature can be used to track taxpayers ahead of key dates.
Offering total visibility over client tax positions as deadlines approach, the tool suggests prompts and actions to finalise the year.
“It also gives accountants a control list to work through their clients and ensure everything has been finalised,” Kathleen says. “It’s a workflow and control function and will remind advisers about everything they need to do for their clients.”
Automated Tax Swaps
TMNZ’s automated Tax Swaps is our latest dashboard feature, enabling clients to get instant quotes and process swaps below the threshold*.
Tax Swaps allow clients to even out their provisional tax payments if they have overpaid on one date and underpaid on another, saving on IR interest costs.
With our automated Tax Swap service, clients will benefit from faster, more efficient processing
The best part? The Tax Swap function is DIY.
“It’s a self-service system,” Kathleen explains. “If a client knows the swap they want to do, our system will automatically say, ‘Yes, you can do it, and this is the interest you’ll get’. You won’t have to interact with us at TMNZ. You can do-it-yourself.”
“It’s super efficient,” she adds. “Clients will have certainty of the outcome, they’ll know how much interest they’ll have to pay, or what they can earn, in an instant.
“At TMNZ, we’re all about flexibility, and empowering our customers to make decisions at a time that suits them.”
Automated Tax Swaps launched recently, following our pilot with TMNZ’s Early Adopter community in April.
Become an Early Adopter
Are you part of TMNZ’s Early Adopter community, who gets first access to all our latest tech features?
Early Adopters enjoy the benefits of our new products and enhancements before anyone else, with support and training to help you make the most of new tools.
As an Early Adopter, you can share feedback and experiences to help us develop the best tech possible for accountants and clients.
“We love working with people to create the best tax solutions possible,” Kathleen adds. “Our Early Adopters are highly motivated, creative people who want to help us get even better.”
If you’re a tech savvy tax pooling user in an accounting firm, become an Early Adopter in a few simple steps:
- login to your dashboard
- Select your firm
- select ‘Early Adopter Programme’, from the left-hand menu
- review and accept the Terms and Conditions presented
- click the ‘Sign up’ button.
To learn more about TMNZ’s latest tech developments, head to our Innovative Tax Technology page or contact our support team today.
*the threshold is subject to change depending on market conditions.
TMNZ Board announces new Chief Executive
TMNZ is thrilled to announce the appointment of Matt Edwards as CEO, effective 1 May 2024.
Matt joins TMNZ following 16 years of strategic leadership and entrepreneurial experience, working in the FinTech sector in the United Kingdom and across Europe.
The appointment signals the next chapter in TMNZ’s journey, as the purpose-led tax pooling originators and market leaders look to help more New Zealand businesses, in exciting new ways.
Board Director and TMNZ Founder Ian Kuperus said:
“We’re delighted to welcome Matt to TMNZ. Matt is extremely well regarded overseas for his senior leadership of people, strategy, technology, innovation and product capability areas. Now our New Zealand business, and our customers, will benefit from this deep experience.”
Matt’s background shows that he is a growth specialist, with a track record of driving businesses forward, developing high-performance teams and bringing transformational change to businesses looking to take the next step.
New CEO Matt said:
“TMNZ has developed an enviable reputation as an industry leader in tax pooling services. I believe the business is primed and ready to take the next step, by changing up how we deliver our current market offering and better serving our customers' needs in a dynamic FinTech world. I am very excited about the opportunity to drive this vision."
The appointment follows news of former CEO Chris Cunniffe retiring from his position in January 2024, but continuing in an advisory capacity to support a smooth leadership transition. The TMNZ Board personally thanked Chris for 12 fantastic years of leadership. The Board also thanked Amanda Thorpe, for guiding the business through the transition period in her role as Acting CEO.
Under Matt’s leadership, TMNZ remains committed to building on its successes and delivering the best client experience, as well as continuing to donate its profits to Whakatupu Aotearoa Foundation for a restored and thriving New Zealand.
For queries please contact TMNZ Brand and Marketing Director at charlotte.tremewan@tmnz.co.nz
Better cashflow management with tax pooling
We’re excited to invite you to our short webinar on Better cashflow management with tax pooling. Learn how tax pooling is an Inland Revenue (IR) approved way to make your provisional tax payments work for you, not against you.
What’s tax pooling?
Tax pooling is a perfect solution for businesses worried about future cashflow and looming obligations. By working with us, you’ll have total control over your tax bill.
Instead of paying IR directly on a set date, you can pay into TMNZ’s tax pool whenever you like. When your tax bill arrives, let us know and we’ll transfer the exact amount to IR on your behalf. The second we do that, it’ll be considered “tax paid”.
Watch our webinar and you’ll hear how we can help you keep money in your business when you need it most and top up your tax payments at any time.
What we’ll cover
- what is tax pooling and how it works
- paying provisional tax on your terms (defer payments up to 22 months!)
- real-world tax pooling benefits (case studies)
- optimise your 28 August tax payment
- Q&A.
Who this is for
This webinar is perfect for business owners and finance professionals interested in using tax pooling to take the stress out of tax time and keep more cash in the business.
This content is for general information purposes only and should not be used as a substitute for consultation with our team of specialists.
The interest rates mentioned in our webinars were accurate at the time of original recording. Please note that IRD interest rates change over time. Always refer to current official IRD rates for the most up-to-date information.
Book a tax pooling overview for your business
Is tax pooling the right solution for you? Every business we work with has different needs. Book an overview with one of our tax pooling specialists to find out how we can support you.










