Tax debt in New Zealand: how it builds, and why it's growing

If your business owes IRD, you’re in very large company. Tax debt in New Zealand has grown sharply in recent years, and IRD has responded by stepping up its collection work. Understanding how tax debt builds, and how IRD now treats it, is the first step to getting on top of yours.

What is tax debt?

Tax debt is tax that hasn’t been paid by its due date, plus whatever IRD adds to it afterwards. For a business, it usually includes:

• GST collected on sales but not paid to IRD (see GST debt);
• PAYE and other employer deductions taken from wages but not passed on (see PAYE arrears);
• Income tax, including provisional tax instalments and terminal tax;
• Late payment penalties added after the due date (see late payment penalties); and
• Use-of-money interest, charged daily on unpaid tax (see UOMI).

How big is the problem in New Zealand?

IRD publishes quarterly reports on overdue tax. In the nine months to 31 March 2026, it reported (IRD):

Measure	Figure
Total overdue tax and entitlements	$9.4 billion
Customers with debt	About 556,000
Collectable debt	$5.9 billion
GST share of collectable debt	$2.3 billion
Employer activities share	$1.1 billion

The previous quarter’s report showed micro-businesses owed about $3.5 billion and small and medium businesses about $2.4 billion, and that penalties and interest made up 35% of overdue debt, roughly $3.1 billion (IRD).

Why does tax debt grow so fast?

Three forces work together:

1. Penalties. For most taxes, a 1% penalty the day after the due date and 4% more on day seven. PAYE and other employer deductions carry steeper penalties that repeat each month.
2. Interest. Use-of-money interest is calculated daily on unpaid tax.
3. New tax. A business that’s short of cash for old tax is often short for the next return too, so new debt stacks on old.

That’s why the same debt can look very different six months later, and why acting at the first overdue notice is so much cheaper than acting at the first legal letter.

How is IRD responding?

With much more enforcement. In the 2024/25 year, IRD collected $4.3 billion of overdue debt and referred 650 cases to court for liquidation, up 49% (IRD Annual Report 2025). In the nine months to March 2026, it issued 1,525 statutory demands and more than 64,000 bank deduction notices. From April 2026, larger company tax debts can also be credit-reported. Our escalation timeline explains each step.

Behind with IRD? Find out whether funding could clear it. It takes a minute, with no credit check to enquire.

Is tax debt a sign of a bad business?

Not necessarily. Many sound businesses fall behind because of timing rather than failure: a big customer paying late, a provisional tax bill based on an unusually good year, growth that ties up cash in stock and wages, or a one-off event such as illness or a flood. The question that matters is whether the business can pay its costs, including new tax, once the old debt is dealt with. If it can, the debt is a problem to solve, not a verdict.

What are the first steps?

1. Look at the real number. Download your myIR statement of account, split by tax type and period.
2. File anything outstanding. Unfiled returns mean an unknown balance, and IRD may estimate it.
3. Pay new tax first where you can, especially PAYE.
4. Choose a route. Pay from your own funds, set up an instalment arrangement, or look at a loan. Our options checker gives a ranked plan.
5. Keep talking to IRD. Silence is what turns a debt into enforcement.

Our cornerstone guide, IRD debt in 2026, covers all of this in more depth, with a first-week plan.

Where does a loan fit?

A loan to pay IRD replaces a growing tax balance with a fixed business debt on known terms. It suits viable businesses with property equity or steady turnover, especially where the debt is large, includes PAYE, or comes with a deadline. Property-secured loans run from $20,000 to $5,000,000; cash-flow options are typically $5,000 to $500,000. We also say plainly when a loan is the wrong tool. Read loans to pay IRD debt.

Which tax debts are the most serious?

Not all tax debt carries the same weight. PAYE and other employer deductions sit at the top, because they’re money taken from employees’ pay. IRD treats non-payment as a serious offence, with up to five years’ imprisonment possible, and a director who decides not to pay can be prosecuted personally (IRD, 16 March 2026). GST comes next: it’s collected from customers on IRD’s behalf, and it’s the largest single category of collectable debt. Income tax, including provisional and terminal tax, is usually the most predictable and is the only one where tax pooling can help with timing.

If you owe more than one type, deal with PAYE first, then GST, then income tax, unless a legal deadline such as a statutory demand says otherwise.

Start with a straight answer

If your business carries tax debt and you’d like to know where you stand, tell us about it in 60 seconds. There’s no credit check involved in asking, your details aren’t sold or sprayed to other lenders, and a real person who knows IRD’s process will call you. The more accurately you describe the debt and any letters you’ve received, the more useful that first call will be.