Airbnb & Short-Stay Rental Tax NZ 2025-26 & 2026-27 — GST, Income, Ring-Fencing (IRD)

Listing your holiday home on Airbnb, Bookabach, or Booking.com is great cash flow — but the tax rules are some of the most complex in the NZ system. Short-stay accommodation sits at the intersection of income tax, GST, mixed-use asset rules, ring-fencing, and marketplace rules introduced in April 2024. This guide covers everything for the 2025-26 and 2026-27 tax years.

Quick links: rental income tax calculator, GST calculator, and self-employment tax calculator if the activity rises to a business.

Short-Stay vs Long-Term Residential — The Fundamental Split

The first question IRD asks is whether the activity is short-stay or long-term residential.

Short-stay is treated as a taxable supply for GST — fundamentally different from a long-term rental, which is GST-exempt. This is why you can accidentally cross the $60k GST registration threshold from short-stay income alone.

GST — The Marketplace Rules (From 1 April 2024)

Under the GST Platform Economy rules (Taxation (Annual Rates for 2023-24, Multinational Tax, and Remedial Matters) Act 2024), effective 1 April 2024:

• Airbnb, Bookabach, Booking.com and similar platforms must charge GST at 15% on every booking of NZ accommodation
• The platform is treated as the supplier for GST purposes
• You — the host — are deemed to have made a zero-rated supply to the platform

If you are not GST-registered

The platform charges the guest 15% GST on the GST-inclusive booking price, remits the output GST to IRD, and gives you a flat-rate credit of 8.5% of the GST-exclusive value of your supply — not 8.5% of the GST-inclusive price the guest paid. IRD’s own worked example: on a $115 GST-inclusive booking, the GST-exclusive value is $100; of the $15 GST content, $6.50 goes to IRD and $8.50 comes back to you as the flat-rate credit. So instead of the $115 you’d have received before 1 April 2024, you now receive $108.50 — about 94% of the GST-inclusive price, not 91.5%.

You can elect to treat the flat-rate credit as excluded income (not taxable — the more common choice) or as assessable income; the choice also determines whether your related expenses are deducted GST-exclusive or GST-inclusive (IRD QB 25/03). You don’t file GST returns purely because of short-stay income sitting below the $60k registration threshold.

If you are GST-registered

You zero-rate your supply to the platform (0% GST) and claim input GST credits on your expenses (cleaning, linen, repairs, commissions paid directly, etc.). You don’t see the 8.5% flat-rate credit — instead you operate the full GST mechanism.

Registering for GST

You must register if your total taxable supplies (short-stay rental + any other GST-taxable activity) exceeded $60,000 in the last 12 months or will in the next 12. You may register voluntarily below $60k if you expect significant input credits (e.g. a renovation).

Note: long-term residential rent doesn’t count toward the $60k threshold because it’s exempt, but short-stay does. A mixed landlord with $40k long-term + $25k short-stay crosses the threshold and must register.

The Mixed-Use Asset Rules

If a property is rented short-stay for part of the year and used privately for part, and is unused for 62+ days, it’s a mixed-use asset. Common examples: family bach used in summer and rented out in winter, or ski lodge rented most of the year but used by the owner in shoulder seasons.

The formula is:

Deductible expenses = Total expenses × (income days ÷ (income days + private days))

• Income days = days rented to arms-length guests at market rates
• Private days = days used by owner, family, or at mates-rates below 80% of market
• Unused days do not count in either direction

The $4,000 opt-out

If gross short-stay income is under $4,000 and the property would run at a loss under the apportionment, you can elect out: declare no income, claim no deductions. Useful for occasional hosts.

The quarantine rule

If expenses for income-producing days exceed income and gross income is 2% or less of the property’s cost, the loss is quarantined (not deductible against other income) and carried forward to offset future income from the same asset.

Ring-Fencing — Residential Rental Losses

Ring-fencing (subpart EL of the Income Tax Act 2007), introduced from the 2019-20 income year, applies to pure short-stay accommodation that isn’t a mixed-use asset — i.e. a property let short-stay with no material private use, so it doesn’t trip the mixed-use 62-day-unused threshold above. A loss from the property cannot offset salary, business, or other investment income. It carries forward until the property produces future rental profit or is disposed of in a taxable sale (e.g. within the bright-line period).

By default, all your residential rental properties are pooled on a portfolio basis — this is automatic; you don’t need to elect into it, and losses on one property can shelter profits on another in the same year. You can instead elect a property-by-property basis on your tax return, which tracks each property’s losses separately and releases them only against that same property’s future income or its own taxable sale.

Mixed-use assets are different. If a property trips the mixed-use threshold (private use and 62+ unused days), subpart DG’s own quarantine machinery applies instead of ordinary ring-fencing — losses are quarantined per-asset when income falls to 2% or less of the property’s value (see above), not pooled across a portfolio.

Ring-fencing does not apply to:

• Commercial property (pure short-stay hotel / motel)
• The owner’s main home
• Mixed-use assets already under the separate mixed-use regime
• Farmland (different rules)

Income Tax — What to Declare

Short-stay income must be declared on IR3 (individuals), IR4 (companies), or IR6 (trusts). Figures go in the “rental income” section unless the activity is so substantial it constitutes a business (e.g. 5+ properties actively managed) — in which case it goes on the self-employment / business schedule.

Deductible expenses (after mixed-use / ring-fencing apportionment) include:

• Interest on loans used to acquire the property — from the 2025-26 income year, 100% deductible for short-stay properties, on the same basis as any other residential rental. Being short-stay was never itself an exemption from the interest limitation rules: while the rules were being phased out (1 October 2021 – 31 March 2025), ordinary short-stay holiday homes were subject to them just like long-term rentals — only new-build land (20-year exemption), the owner’s main home, and farmland were carved out. Interest is now 100% deductible because the limitation itself was reversed for all residential property from 1 April 2025, not because of a short-stay-specific rule. For a mixed-use asset, apportion the interest by income days vs private days first (see above), then the apportioned amount is fully deductible
• Rates, body corporate, insurance
• Repairs and maintenance (not capital improvements)
• Platform commissions and booking fees
• Cleaning, linen, consumables
• Travel to the property for management (strict rules)
• Depreciation on chattels (not on the building)

Worked Example — Coastal Bach

Mereana owns a 3-bedroom bach in Pauanui. During 2025-26:

• Rented short-stay on Airbnb for 120 nights; guests paid $25,000 in total (GST-inclusive) through the platform
• Used privately for 30 nights (family summer holiday)
• Unused: 215 nights
• Annual expenses (rates, insurance, interest, repairs, linen, platform fees): $15,000 total, paid GST-inclusive — she can’t claim input GST since she isn’t registered

Mereana is not GST-registered.

Step 1 — Strip out GST and work out the flat-rate credit:

Airbnb collects 15% GST on the $25,000 guests paid. The GST-exclusive value of her supply is $25,000 ÷ 1.15 = $21,739. Of the $3,261 GST content, Airbnb remits the equivalent of 6.5 percentage points to IRD and refunds 8.5% of the $21,739 exclusive value — $1,848 — to Mereana as a flat-rate credit. She elects to treat the credit as excluded (non-taxable) income, so only the $21,739 counts as gross rental income for tax purposes; the $1,848 credit is hers tax-free on top.

Step 2 — Mixed-use apportionment:

• Income days: 120
• Private days: 30
• Apportionment fraction: 120 ÷ (120 + 30) = 80%
• Deductible expenses: $15,000 × 80% = $12,000

Step 3 — Net taxable income:

Step 4 — Tax impact:

Mereana already earns $90,000 salary, which is already in the 33% bracket. Adding $9,739 net rental income (all of which still falls within the 33% bracket, since $99,739 is well under the $180,000 threshold for 39%):

Mereana owes approximately $3,214 additional tax on the rental, due as terminal tax on 7 February 2027. Since this is her first year with rental income and the residual income tax (RIT) from it is below $5,000, she’s not yet a provisional taxpayer for this income source — but she should watch the $5,000 RIT threshold if the rental grows in 2026-27.

Common Mistakes to Avoid

• Treating short-stay like long-term rental for GST — short-stay is taxable and counts toward the $60k threshold
• Claiming 100% of expenses on a mixed-use asset — must apportion by income days vs private days
• Assuming short-stay was always exempt from the interest limitation — it wasn’t. Only new-build land, the owner’s main home, and farmland were carved out; ordinary short-stay holiday homes faced the same phased-out deductions as long-term rentals from October 2021 to March 2025. Interest is 100% deductible now because the limitation itself was reversed for all residential property from 2025-26 — not because short-stay had a special exemption
• Forgetting the 8.5% flat-rate credit is not income — it’s GST the platform paid on your behalf
• Using the property yourself at “mates rates” — nights charged below 80% of market count as private, not income, days
• Missing ring-fencing — losses can’t offset salary; they carry forward
• Not registering a trust property correctly — rental profit runs on IR6; trust tax rate is 39% if retained

Record-Keeping Requirements

For 7 years you must keep:

• Platform booking reports (Airbnb / Bookabach export annually)
• Bank statements showing deposits
• Invoices for all claimed expenses
• A diary or calendar showing income days, private days, unused days
• GST returns if registered

Useful Calculators

• Rental income tax calculator — gross rent, expenses, net taxable profit
• GST calculator — when you cross $60k and what GST is owed
• Self-employment tax calculator — if short-stay scales up to a business
• Ring-fencing transition calculator — losses carried forward
• Property tax combined calculator — rates + insurance + maintenance + bright-line

Sources

• Renting out a holiday home — IRD
• QB 25/03 — How do the mixed-use asset rules apply if I provide short-stay accommodation? — IRD Tax Technical (flat-rate credit mechanics and expense apportionment)
• IS 23/04 FS — The interest limitation rules and short-stay accommodation — IRD Tax Technical (confirms short-stay is not itself exempt from interest limitation — only new-build, main home, and farmland are)
• Mixed-use asset rules — IRD
• GST on accommodation platforms — IRD
• Residential rental property deductions (ring-fencing) — IRD
• Taxation (Annual Rates for 2023-24, Multinational Tax, and Remedial Matters) Act 2024 — Treasury