How you can use tax pooling like a savings account
In business, cash is king, and being able to access funds quickly in a crisis can mark the difference between success and failure. In an unpredictable world, having the ability to access cash during challenging times can be priceless.
With tax pooling, companies can easily request refunds of provisional tax payments they have made at the year to date without waiting to file their tax returns. They can receive their refunds within a matter of days.
Tax can be one of the largest expenditure lines for a business, so flexibility is vital.
In this economic climate, it’s far from ideal to have large sums tied up with Inland Revenue (IR).
What if you can’t access the money in an emergency?
What if your profitability projections trend down over the year, meaning you’re likely to overpay?
For taxpayers with a 30 June year-end, the first instalment of provisional tax is due on 28 November. Every business and sole trader should ask themselves these questions, especially if their work is seasonal or cyclical in nature.
Businesses should also think about the accessibility of their funds if their income is difficult to predict or fluctuates due to factors such as commodity prices, adverse weather events, or the exchange rate.
Accessible tax money
Depositing tax payments into a tax pool can form part of an effective risk management strategy in times of uncertainty.
Look at it like depositing into a savings account with the added benefit of eliminating late payment penalties and IR interest. You can still access your funds if you need to, you’re covering yourself for tax time and possibly extending your time to pay.
How depositing provisional tax into a tax pool works
Tax pooling operates with the blessing of the New Zealand tax department. TMNZ has been a registered provider of the service since 2003.
Companies deposit their provisional tax payments into a shared pool instead of directly into their own IR account.
Each payment is date stamped as at the date it is made into the pool (e.g., 28 November). Funds are held in an account at the IR. This account is managed by an independent trustee, Guardian Trust.
A taxpayer holds their payments in the pool until it instructs TMNZ to transfer their deposits to their own IR account.
Taxpayers can request a refund from TMNZ of provisional tax deposits held in the pool at any time without having to file their tax return or an estimate with IR.
Refunds may be subject to meeting anti-money laundering requirements. (Corporate taxpayers also need to be mindful of imputation credit account impacts when requesting a refund of tax they hold in the pool).
A taxpayer typically instructs TMNZ to transfer their tax deposits to their own IR account once they finalise their tax return and know the amounts required at each instalment date to satisfy their liability for the year.
As the tax being transferred from the TMNZ tax pool to a taxpayer’s IR account has been date stamped to when it was originally paid into the pool, IR recognises it as if the taxpayer paid the whole amount on time.
This remits any IR interest and late payment penalties showing on the taxpayer's account.
Access previously paid funds
If you’re short on cash, tax pooling also allows you to temporarily withdraw deposits you hold in our pool.
You can access the amount of provisional tax funds you have deposited (minus an upfront interest cost). You also have the option to restore your deposit at the original deposit date once your cashflow situation has improved.
Buy some time
When preserving cashflow is high on the agenda, you can use a tax pool to defer upcoming provisional tax payments to a date in the future without incurring late payment penalties.
For example, someone with a 7 April terminal tax date could have up to 75 days from that date to settle their provisional tax.
Earn more interest if you’ve overpaid
If you have surplus tax remaining in the pool once you have transferred money to the IR to satisfy your liability, you can earn interest above the IR’s credit interest rate by selling the excess tax to other pool members that have underpaid for the year or have received a notice of reassessment from the IR.
Please note that this is subject to market demand.
The purchasing taxpayer can reduce the interest cost faced on their underpayment significantly when applying this tax against their liability. This also eliminates any late payment penalties.
Overpayers earn more interest while fellow taxpayers pay less. Everyone’s a winner!
Find out more
To learn more about managing your provisional tax, check out our calculating provisional tax guide and cashflow management tips for businesses.
Alternatively, please get in touch with our friendly support team if you have any questions. We're always happy to help.
Manage IR exposure with corporate tax pooling
With the 28 November provisional tax date fast approaching, now’s the perfect time to talk to larger clients about the benefits of TMNZ corporate tax pooling.
Tax pooling is an Inland Revenue-approved system to help New Zealand businesses manage their provisional tax. Instead of paying the IRD directly, taxpayers can purchase overpaid tax from other tax pool members and pay into the tax pool when it suits them.
As some businesses overpay tax when they have funds to spare, they help to cover other taxpayers that need a bit more time to meet their obligations. We like to think of it as businesses helping businesses.
TMNZ is proud to be New Zealand’s original tax pool, pioneering the concept in 2003. We haven’t looked back since, helping large businesses, SMEs, and sole traders with tax management.
With tax pooling, businesses that can’t meet their provisional tax liabilities can purchase tax from those that have overpaid. This is charged at a lower interest rate than the IRD’s use of money interest charges, and companies also avoid late payment penalties.
There are advantages on both sides of a tax pool. Companies that have overpaid into our pool can also earn more interest on their surplus tax than if they had paid the IRD directly.
Clients that experience volatility or pay substantial amounts of provisional tax (e.g., more than $100,000 at each date) can reduce their exposure to use of money interest by paying provisional tax into the Guardian Trust/TMNZ tax pool account at Inland Revenue (IRD) rather than directly into their IRD account.
In summary, here are all of the ways corporate tax pooling is great for large companies:
- Companies earn more interest on surplus tax than they would if they overpaid the IRD.
- Tax can be purchased if businesses have underpaid income tax.
- Tax can be swapped across provisional tax dates to reduce exposure to use of money interest.
- Overpaid tax can be refunded within three to five days — without filing a return.
- Businesses can access TMNZ’s in-house expertise for corporate tax pooling advice on how to optimise their provisional tax payments.
- Money is deposited in the TMNZ tax pooling account at IRD.
What’s more, by using the TMNZ tax pool, you and your clients are also helping to give back to New Zealand. All our profit is invested in the Whakatupu Aotearoa Foundation, supporting social and environmental causes.
Contact us today to find out how TMNZ tax pooling can help your clients.
Tax Pooling Basics and Benefits
We’re excited to share with you: Tax Pooling – the Basics and Benefits. If you’re new to tax pooling, or need a refresher, watch to learn how tax pooling works and how it can help accountants and businesses better manage tax payments, with more freedom and cashflow flexibility.
What you’ll learn
- the fundamentals of tax pooling and how it works
- all the benefits of tax pooling
- best practice uses of tax pooling in the current environment
- the important ways TMNZ can help accountants and businesses.
Who this is for
- tax agents and accountants in public practice looking for an introduction to tax pooling, or wanting to refresh their knowledge
- business owners interested in using tax pooling to manage their tax with more freedom and cashflow flexibility.
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.
Using the Due Date on myIR statements may needlessly expose you to UOMI
Let's talk about how TMNZ can help you to avoid interest charges with payments at P3.
Unfortunately we're seeing many clients buying tax at the wrong dates. We believe this is caused by the confusing way Inland Revenue displays the Residual Income Tax liability on the myIR statements. If a taxpayer doesn’t meet the safe harbour threshold of less than $60,000 RIT for the relevant tax year, paying tax at terminal tax date will cost you Inland Revenue Use of Money Interest (UOMI).
Why is this?
- Inland Revenue myIR transaction detail statements show the tax due split on what amounts are liable for late payment penalties and what amounts are not.
- As late payment penalties are charged on the lesser of the standard uplift amounts and RIT/3 for all provisional tax dates, they will usually show two amounts for the P3 date. The standard uplift amount will be shown as due at P3, and the balance of current year RIT will be shown as due at the Terminal Tax date.
- However, what is not clear on myIR is that use of money interest will be charged on the combined P3 total, from P3 to the date the tax is paid.
- So those that are not transferring the combined total at P3 but transferring the amount at the terminal tax date, will incur interest from the P3 date.
How can I stop this?
When transferring or purchasing tax from the TMNZ tax pool, you should be doing this for the combined P3 amount at the P3 date. This will mean you avoid interest charges.
To find out more, get in touch.
Disclaimer: This article is correct as at 19 April 2022. It is subject to change.
Syncing provisional tax to cashflow
As a self-employed painter and decorator, Bart Taylor knows full well how business owners can get themselves into strife if they don’t plan for their tax obligations.
He speaks from his own personal experience.
That’s why Bart is happy to talk about how TMNZ enables him as a self-employed tradesperson to take the stress out of having to pay provisional tax on dates dictated by Inland Revenue (IR).
TMNZ offers Bart the flexibility to make the payments when it suits his cashflow.
As someone who doesn’t always get paid every week, that’s important because it offers his business some breathing space while he waits for the money he’s earned from completed jobs to land in his bank account and ensures that other important invoices can be paid in the meantime.
A bit about Bart
Bart owns and operates his own business in Christchurch.
He’s a one-man band and that’s the way he likes it. Plus, most of his work means he does not require a crew, although he will occasionally use contractors when required or on larger jobs.
Bart has been his own boss since 2013, when, at the age of 24, he decided to make a go of this painting lark on his own. The market in the Garden City was awash with painting gigs during the rebuild and becoming self-employed seemed like a low-risk move.
Fast-forward nearly eight years and his gamble has paid off. He is enjoying the benefits that come with self-employment and, as a husband and father in a young family, the better work-life balance he has achieved.
Tough tax lessons
Yet that’s not to say that everything has been a bed of roses during that time.
“Becoming self-employed has been a bit of a rollercoaster. Lots of learnings, lots of difficult times, hard times,” says Bart.
“First and foremost, I’m a tradesman, so I am a worker. The back office, the organisation, the financial side of things is not my strong point. With the tax side of self-employment, I managed it very poorly for years because I was so young.”
Like other business owners, Bart wasn’t as prepared as he should have been and was “stung” in his second year of trading. That was when two years’ worth of tax was due. Ouch.
He admits having to pay provisional tax was “rough for a little while”.
“In the trade industry, you don’t always get paid every week and you need cashflow to run your business,” explains Bart.
“My accountant saw there was a risk of if we paid that tax bill in full, that I might fall short in other areas and he wanted to make sure that my relationship with my trade suppliers stay good and that the invoices I need to pay get paid on time, not just the IR ones.
“He recommended Tax Management NZ and that freed up cashflow.”
Breathing space from IR to manage cashflow
That’s because TMNZ gives Bart the flexibility to pay his provisional tax when it suits his business, without the consequences of steep IR interest and late payment penalties.
It operates with the blessing of the taxman, too.
TMNZ makes a date-stamped payment to IR on Bart’s behalf on the date his provisional tax is due. Bart pays TMNZ at a time when it suits his cashflow.
TMNZ transfers the date-stamped payment to Bart’s IR account and IR treats it as if Bart himself has paid on time. This eliminates any IR interest and late payment penalties showing on his account.
“Sometimes the option of TMNZ, to be able to borrow some money for a short period of time, to make sure you hit that IR deadline, frees you up with your cashflow until that payment [you are waiting on] comes through,” says Bart.
“The fee of using Tax Management NZ is so low and affordable in comparison to the failings of if you ran out of money in that time, or the scramble and the stress, so it’s definitely worth it.
“It’s changed my perception around making these tax payments. It takes the stress off of it.”
And how does dealing with TMNZ compare to dealing with IR?
“You get a bit more of a personal touch with Tax Management NZ because you get a prompt response and it’s not a cookie-cutter [reply].”
Bart is one of many small business owners throughout New Zealand who benefits from the provisional tax flexibility TMNZ offers. Get in touch for more information about our service or if you have any questions. We're happy to help. Alternatively, register with TMNZ to explore tax pooling for yourself.
Cashflow relief for farmers impacted by flood or drought

Those impacted by flooding in Canterbury or drought elsewhere in New Zealand have another option to manage their cashflow.
It’s called tax pooling.
It lets taxpayers defer their upcoming provisional tax payments to a time that suits them, without incurring interest (currently seven percent) and late payment penalties from Inland Revenue (IRD).
The service – which has been operating with the blessing of the taxman since 2003 – is available through an approved commercial provider such as Tax Management NZ (TMNZ).
The impact of extreme weather
The Government has declared the recent flood in the Canterbury region as a medium-scale adverse weather event.
As those in this part of New Zealand assess the damage and begin the clean-up following the large deluge of rain, a big dry is beginning (or, in some cases, continuing) to bite other parts of New Zealand. The drought has been classified as a large-scale adverse weather event.
Farmers impacted by these contrasting weather events are being encouraged to act early and assess their options if they need assistance.
For those battling drought, some tough decisions around stock and feed will need to be made. In the Canterbury region, flooding only compounds the financial pressure as many were also dealing with drought beforehand.
Cashflow will be important during this difficult period.
Help is available
Managing tax payments will be a key consideration in managing cashflow too.
IRD, to its credit, is exercising some discretion.
It will allow farmers and growers affected by the Canterbury flood to make early withdrawals from the income equalisation scheme.
For those whose current or future income will be significantly affected by drought, IRD will allow late deposits for the 2019-20 income year up to 30 June 2021.
Early withdrawals are also available in the case of a medium-scale adverse event or if someone is suffering serious hardship.
Please note a taxpayer must satisfy certain criteria for IRD to exercise its discretion around the income equalisation scheme.
There's also the option of re-estimating provisional tax.
However, while that allows someone to get a refund of tax they have paid earlier in the year, it does come with some risk.
Free up cashflow by deferring payment of provisional tax
Farmers growers with a May balance date are due to pay their the final instalment of provisional tax for the 2020-21 income on 28 June.
For a small interest cost, someone can use TMNZ to defer this payment.
We make a date-stamped tax deposit to IRD on behalf of a taxpayer on 28 June and the taxpayer pays us when it suits their cashflow.
A taxpayer can either pay the full tax amount at a date of their choosing or enter an instalment arrangement.
When a taxpayer satisfies their arrangement with TMNZ, IRD will treat it as if the taxpayer had paid on time. Any interest and late payment penalties showing on their account will be remitted.
A taxpayer has up to 12 months to pay their 28 June provisional tax with TMNZ.
TMNZ’s interest cost is much cheaper than what IRD charges when someone pays their tax late.
Please click here to register with TMNZ. Alternatively, feel free to contact us if you have any questions.
Bright-line test: Don’t get caught by ‘change-of-use’ rule fishhook
Anyone who lives away from their main home for more than a year will be liable to pay income tax on any profit they make from the sale of a residential property sold within the new bright-line period.
That’s because of the introduction of a ‘change-of-use’ rule that came into effect when the Government amended the legislation earlier this year, in its bid to cool rampant property prices in New Zealand.
For salary and wage earners who are renovating their house, away on secondment, or looking to build a property, a hefty and unpleasant tax bill may be lying in wait as a result of this fishhook.
Detailed explanation
Under the bright-line test, an exemption applies if the property a person is selling is their main home.
Prior to 27 March 2021, a property was considered a main home if the owner had lived in it or used it as a main home for at least 50 percent of the time that they owned it.
However, under the new bright-line rules – which apply to a residential property that someone purchases on or after 27 March 2021 and sells within 10 years – homeowners can only be away from their main home for a continuous period of up to 365 days.
Homeowners must treat the days they are away from their main home as ‘non-main home days’.
If someone is away for more than 12 months and then later sells their house within 10 years of acquiring it, the main home exemption will not apply.
This is the 'change-of-use' rule.
It means a person will have to pay income tax on the profit they make from that sale for the period they were not using the property as their main home.
Example
A homeowner sells a property six years after the start of the 10-year bright-line period.
During that six-year bright-line period, they had moved out and rented this house for 15 months while they lived and worked in another part of New Zealand.
Any profit will be split between the 15 months and remaining 57 months during the bright-line period. The homeowner is liable to pay tax on the amount of profit apportioned to the 15-month period.
The impact for salary and wage earners
This has potential – and unpleasant – tax ramifications for salary and wage earners who:
- Renovate their home.
- Live away from their main home due to being on secondment.
- Purchase a section with the intention of building a property, especially if it is going to take more than a year after buying the section to move into their newly built house.
The income a salary and wage earner receives from selling a property is added to their other income sources for that year.
For most, given the eye-watering sums some houses are currently fetching on the market, this will force them into the top tax bracket of 39 percent for that year. The top tax bracket applies to those earning income above $180,000.
There are potential provisional tax ramifications, too.
If the income tax liability from the sale of a property is $60,000 or more, a salary and wage earner will need to pay this by 7 May to avoid incurring Inland Revenue (IR) interest – even if there was no obligation for this person to pay provisional tax during the income year they sell the property.
This is because they fall outside the safe harbour provision.
They can, however, use an IR-approved tax pooling provider such as TMNZ to reduce this interest cost by a notable amount. The savings can be significant.
They will also enter the provisional tax regime during the following income year due to the previous year's income tax liability being greater than $5000.
Anyone who expects to be away from their home for more than 12 months will need to keep accurate records of the number of days they live away from the property as well as any deductible expenses they wish to claim against the property's sale proceeds.
Seek advice
The rules around the taxation of property are complex.
As always, we recommend you speak to an accountant if you have any questions or wish to err on the side of caution.
Can AIM taxpayers use tax pooling?
A taxpayer cannot use tax pooling to defer payment of, or settle, provisional tax instalments calculated under the accounting income method (AIM).
However, TMNZ can help AIM taxpayers with terminal tax or when they receive a notice of reassessment.
What does tax pooling legislation say about AIM?
Legislation in the Income Tax Act 2007 clearly states that a taxpayer can use tax pooling funds to satisfy “a provisional tax liability other than under the AIM method”.
Please refer to sections RP17-RP21 of the Act for further information.
Why IR doesn’t allow tax pooling to assist with AIM payments?
Inland Revenue (IR) says tax pooling manages taxpayers’ uncertainty around provisional tax payments and their exposure to interest.
Consistent with this objective, tax pooling is not currently available for tax types where someone has certainty of their liability at the time of payment (for example, GST).
Given the payments made under AIM are calculated on actual accounting profit, taxpayers will have certainty about what's due.
As such, it's IR’s view that it's not appropriate to allow tax pooling for provisional tax payments calculated under AIM.
What does that mean for you?
IR will reject the use of any tax pooling funds to satisfy an underpaid AIM instalment. As a result, late payment penalties and interest will continue to show on a taxpayer account.
They will, however, accept the use of tax pooling funds to settle a terminal tax liability. The same applies if an AIM taxpayer has additional tax to pay after receiving a notice of reassessment.
Please be mindful of these facts when entering arrangements with TMNZ.
It’s also an important consideration before electing to use AIM to calculate provisional tax.
That's because paying tax when income is earned is not necessarily the same as when cash is received.
If someone is unable to pay an AIM instalment on time or in full due to cashflow constraints, the safety net of tax pooling will not be available to reduce their exposure to interest and eliminate late payment penalties.
Feel welcome to contact us if you have any questions.
Make IR interest, late payment penalties disappear
A missed or underpaid provisional tax payment often means a taxpayer is faced with a steep interest cost and potentially late payment penalties on top of what they owe.
However, tax pooling can make that go away.
A big frustration with Inland Revenue (IR) is that it expects taxpayers to pay the correct amount of tax on the dates it sets. No ifs, no buts.
Fail to adhere to this rigid timetable or underpay and you will face the consequences.
IR charges interest – 9.89% as at 8 May 2025 – from the date the payment was due until you pay the outstanding amount.
Late payment penalties may also apply as follows:
- One percent the day after payment was due.
- An additional four percent if the tax amount (including late payment penalties) remains unpaid after seven days.
A tax pooling provider such as TMNZ operates with the blessing of IR. It can be of assistance if taxpayers find themselves in this situation.
Where might this be useful?
In the event you missed your recent 7 May provisional tax payment – or any other instalment relating to the 2020-21 income year, for that matter – we can eliminate any late payment penalties for which you may be liable and significantly reduce the interest you pay.
You make your payment to TMNZ and we apply backdated tax that was paid to IR on the original date(s) it was due against your liability.
The taxman treats it as if you paid on time once it processes this transaction.
This wipes any IR interest and late payment penalties showing on your account.
You have the option of making to TMNZ a one-off payment at a date of your choosing or making regular instalment payments towards your liability over a longer period.
TMNZ gives you up to 13 months to pay your 7 May provisional tax for the 2020-21 income year.
Is your 2020 terminal tax overdue?
You still have time to use TMNZ to reduce the interest cost and eliminate late payment penalties if you have outstanding provisional or terminal tax liabilities for the 2019-20 income year.
However, you will have to act quickly.
Tax pooling legislation gives taxpayers an additional 75 days past their terminal tax date to pay their terminal tax.
If your terminal tax for the 2019-20 income year was due on 7 April 2021, you would have until 15 June to settle owe with TMNZ.
Reassessed by IR
TMNZ can also assist with historic income tax payments and other tax types such as GST and PAYE if you receive a notice of reassessment from IR.
You have 60 days from the date the IR issues this notice to use tax pooling.
Please contact us if you have any questions.
Commissioner’s discretion for tax pooling
A provision within legislation allows taxpayers to use tax pooling for certain income tax or RWT voluntary disclosures where no return has been previously filed.
This is known as Commissioner’s discretion.
And it’s worth seeking if a taxpayer satisfies all relevant criteria (see below), as settling these underpaid tax types through an approved tax pooling provider such as TMNZ can result in notable interest savings. The interest we charge can be significantly lower than Inland Revenue (IR).
To use tax pooling for historical income tax and other tax types, there generally needs to be a notice of reassessment issued by IR.
However, section RP17B (9) Income Tax Act 2007 stipulates that the Commissioner’s discretion found in RP17B (10) of the Act may be available in situations where a voluntary disclosure for income tax or RWT is made and a return for that tax type has not previously been filed.
The criteria for Commissioner’s discretion
That said, there are three conditions a taxpayer seeking Commissioner’s discretion to use tax pooling funds to settle income tax and RWT obligations must meet.
They are as follows:
- The increased amount arises as a result of an event or circumstance beyond the person’s control; and
- The person has a reasonable justification or excuse for not filing the return by the required date; and
- The person has an otherwise good compliance history for two income years before the income year in which the voluntary disclosure is made.
A taxpayer must satisfy all three requirements for the Commissioner to exercise their discretion.
This ensures that in exercising discretion she is satisfied that each occasion of non-compliance is not a deliberate act or a continuation of failures because of the taxpayer’s inadequate or poorly applied internal controls.
We recommend you refer to the examples 12 and 13 (pages 44 and 45) of the Tax Information Bulletin Vol 23, No 8, October 2011 to get a sense of the scenarios where IR will allow or decline a request for Commissioner’s discretion.
Applying for Commissioner’s discretion
The process is straightforward.
An application asking the Commissioner to exercise their discretion to use tax pooling funds can be made in writing.
Be sure to include the taxpayer’s name and IR number in this correspondence.
Outline the details of the case in a few paragraphs. We recommend splitting this information under the following headings:
- Background information. Include information about the taxpayer and nature of their business. It should also contain contextual information that you deem relevant, such as historical business relationships, personal circumstances, and relationships with other/historical accountants.
- The increased amount arises as a result of an event or circumstance beyond the person's control. Include detailed (and chronological) events or factors that have occurred throughout the period in question that provide further contextual explanation as to how the liability has arisen and not been declared until now, and how this was beyond the taxpayer’s control.
- The person has a reasonable justification or excuse for not filing the return by the required date. Include any details that show the client has not been purposefully negligent.
- The person has an otherwise good compliance history for two income years before the income year in which the voluntary disclosure is made. Include details that support a good prior history. It’s important to show this occurrence is out of the ordinary and therefore worthy of consideration.
TMNZ has an email template available should you require this.
Requests asking the Commissioner to exercise their discretion can be sent to taxpooling@ird.govt.nz
TMNZ is here to help
If you’d like further information on Commissioner’s discretion or wish to discuss a particular scenario, please get in touch.









