Provisional tax payments that suits your business cashflow

Tax Management NZ (TMNZ) offers a better way to pay your provisional tax, so you can manage your cashflow, save time and reduce expenses. We call it: doing tax on your terms.

IRD Approved

TMNZ are IRD registered and the industry leaders

Flexible Payment

Pay provisional tax when it suits your business cashflow

Save Cost & Time

Save up to 30% on IRD interest by paying through TMNZ

Trusted Systems

We use the highest security standards so your funds are in safe hands

Expertise & Service

Fast and friendly advice from a dedicated team of experts

Innovative Solutions

Manage your provisional tax payments online

How can we help you?

Pay provisional tax

When it suits your business while reducing interest costs and penalties

Reduce risk on overpaid tax

Reduce tax liability risk and potentially earn more interest.

Reduce tax audit costs

And save up to 30% on IRD interest for reassessed tax

Do you work for an accounting firm and manage taxpayer clients?

We can help you and your clients do tax on their terms

TMNZ is used by more businesses and accounting firms than any other tax pool

As New Zealand’s leading tax pooling provider, no one understands provisional tax better than TMNZ. With the largest and most established tax pool in New Zealand, TMNZ is the industry innovator, providing the best service and best flexibility to our customers.

Our clients include thousands of small- and medium-sized businesses as well as some of New Zealand’s largest banks, state-owned enterprises and well known corporate names.


Taxpayers helped throughout New Zealand


Million in IRD compliance
costs saved

TMNZ is the first choice for New Zealand accounting firms

What customers say about TMNZ

Our latest content

Coffee with Bernice at BLO Consulting

Coffee with Bernice at BLO Consulting 1200 630 Jade Robertson

Tax is not the only thing business owners focus on, says Bernice Lo from BLO Consulting. She knows how they think. After all, she started her accountancy practice in 2007. Today, it is a thriving team of seven with another team overseas, making them available 24 hours a day during the work week. Their clientele…

Standard uplift: When 105 percent uplift payments are less than 110 percent payments

Standard uplift: When 105 percent uplift payments are less than 110 percent payments 1200 630 Lee Stace

IRD will sometimes apply the 105 percent standard uplift calculation (CY-1) retrospectively when determining what’s due and payable at each provisional tax instalment. This happens in situations where CY-1 payments turn out to be less than 110 percent uplift payments (CY-2). When this is the case, IRD’s system will automatically overwrite the CY-2 calculation once…

Image: Safe harbour tolerance

Safe harbour tolerance being introduced

Safe harbour tolerance being introduced 1344 706 Lee Stace

A legislative amendment will allow taxpayers to remain in safe harbour if they underpay their provisional tax instalments by $20.   Smaller taxpayers using the standard uplift method to calculate their payments have been losing the ability to take advantage of the interest concession provided by this rule when they underpay by small amounts. When…

Merry Christmas happy New Year from TMNZ

Merry Christmas happy New Year from TMNZ 1200 630 Jade Robertson

The TMNZ office will close from the end of 23 December – 8 January to celebrate Christmas and the New Year. We will have limited availability from 24 December 2019 to 7 January 2020. We wish everyone a wonderful break and a good time with friends and family to mark the start of a new…