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Auckland International Airport (AIA) / FY25

PBT up 61.4% on operating leverage; capex still 108.5% of revenue

Strong operating gearing and a normalising tax rate lifted earnings, but capex of NZ$1.1bn kept pre-lease FCF at NZ$-615.6m, the lower edge of the

Transport & Infrastructure / Airports

AIA revenue trajectory

Revenue context before the current result.

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HY26 was $519.6m, versus $1b in FY25.

AIA EBITDAF margin

EBITDAF margin across covered periods.

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  • HY23 AIA: Unprecedented low ebitda margin. 34%; 4-period range 47.8% to 80.7%. EBITDA margin: 34.0%, unprecedented low; 4-period mean 67.6%, range 47.8%-80.7%.
  • FY23 AIA: Outside range low ebitda margin. 63.4%; 4-period range 65.2% to 252.3%. EBITDA margin: 63.4%, below normal range; 4-period mean 127.9%, range 65.2%-252.3%.
  • HY25 AIA: Outside range high ebitda margin. 80.7%; 4-period range 34% to 71.5%. EBITDA margin: 80.7%, above normal range; 4-period mean 55.9%, range 34.0%-71.5%.
EBITDA margin: 80.7%, above normal range; 4-period mean 55.9%, range 34.0%-71.5%.

AIA operating cash flow

Operating cash flow across covered periods.

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HY26 was $185.4m, versus $474.3m in FY25.

AIA working-capital movement

Operating working-capital absorption or release by reporting period.

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  • FY21 AIA: Outside range high operating working-capital movement. $10.5m; 4-period range $-15.9m to $8m. Operating working-capital movement: NZ$10.5m, above normal range; 3/4 prior periods had builds averaging NZ$3.5m, and 1 had releases averaging NZ$-15.9m.
  • HY22 AIA: Unprecedented low operating working-capital movement. $-20.8m; 4-period range $3.1m to $30.7m. Operating working-capital movement: NZ$-20.8m, unprecedented low; 4/4 prior periods had builds averaging NZ$16.3m, and none had a working-capital release.
  • FY22 AIA: Unprecedented low operating working-capital movement. $-15.9m; 4-period range $1.2m to $10.5m. Operating working-capital movement: NZ$-15.9m, unprecedented low; 4/4 prior periods had builds averaging NZ$5.3m, and none had a working-capital release.
  • HY25 AIA: Outside range high operating working-capital movement. $30.7m; 4-period range $-20.8m to $23.1m. Operating working-capital movement: NZ$30.7m, above normal range; 3/4 prior periods had builds averaging NZ$11.5m, and 1 had releases averaging NZ$-20.8m.
Operating working-capital movement: NZ$30.7m, above normal range; 3/4 prior periods had builds averaging NZ$11.5m, and 1 had releases averaging NZ$-20.8m.
Release date
21 August 2025
Published
22 April 2026
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Key metrics

Numbers worth scanning first

FY25 vs FY24

Revenue

$1b

+12.2% ↑ vs $895.5m

EBITDA

$827.2m

+41.6% ↑ vs $584.1m

Net profit after tax

$420.7m

Suppressed: metric quality flags mark this value as unsuitable for normal comparison.

Net cash inflow from operating activities

$474.3m

-4.4% ↓ vs $496.3m

Full-year dividend per share

13.3c

+103.8% ↑ vs 6.5c

Operating profit

$626.5m

+50.7% ↑ vs $415.7m

Profit before tax

$554.2m

+61.4% ↑ vs $343.3m

Cash and cash equivalents

$567.8m

+158.4% ↑ vs $219.7m

What changed

Revenue rose 12.2% to NZ$1,004.7m and EBITDA rose 41.6% to NZ$827.2m, producing PBT growth of 61.4% to NZ$554.2m on the back of operating leverage and a recovery in the underlying business

NPAT swung from NZ$5.5m to NZ$420.7m, but the headline growth figure is not analytically meaningful: the prior effective tax rate of 98.4% normalised to 24.1%, so PBT growth is the cleaner operating read.

Operating cash flow fell 4.4% to NZ$474.3m, capex was NZ$1.1b (108.5% of revenue), and pre-lease free cash flow was NZ$-615.6m. Gross borrowings dropped from NZ$5.1b to NZ$2.5b while total equity rose NZ$1.9b to NZ$10.5b, leaving net debt/EBITDA at 2.32x versus 4.22x prior. Total assets reached NZ$14.1b, an unprecedented high against Annolyse's historical baseline (4-period mean NZ$10.8b, range NZ$9.8b to NZ$12.4b).

What matters

The capital cycle defines the economics

Capex of 108.5% of revenue and pre-lease FCF of NZ$-615.6m sit at the lower edge of the company's historical range (4-period mean NZ$-319.5m, range NZ$-134.7m to NZ$-662.4m). This matters because operating earnings can keep compounding while the business continues to consume cash, and the durability of the dividend depends on funding choices rather than internally generated cash.

The capital structure has been reset, not just rolled. Leverage at 2.32x is at the lower edge of the recent range against a 4-period mean of 4.68x, and gross borrowings have halved alongside an equity uplift of NZ$1.86bn. This expands headroom to continue the capex programme, but the leverage compression looks balance-sheet-assisted rather than earnings-driven.

The NPAT print overstates the underlying step-up. PBT grew 61.4% on revenue growth of 12.2%, which is the genuine operating result; the swing from NZ$5.5m to NZ$420.7m in NPAT also captures the unwind of last year's near-100% effective tax rate. ROE of 4.0% is at the upper edge of the recent baseline (4-period mean 2.2%) but remains low for a regulated infrastructure asset of this size.

Expectations

No forward targets or guidance numbers are supplied in the release set, so this result cannot be benchmarked against a quantified plan

HY25 supplied 49.8% of full-year revenue, 48.7% of EBITDA and 44.5% of NPAT, so the second half was modestly weighted on profit but broadly balanced on revenue and EBITDA. That implies the H2 run-rate did not deteriorate, but it also does not give a clean read on FY26 trajectory.

The full-year dividend of 13.25 cents (versus 6.5 cents) implies a payout of 51.2% of NPAT, which the release set does not tie to a stated policy framework or a forward dividend guide.

Quality of result

The operating step-up is genuine: revenue, EBITDA and PBT all moved together, and the EBITDA margin of 82.2% sits within Annolyse's historical range

Cash conversion of 57.4% (OCF/EBITDA) is within the supplied historical range (4-period mean 51.4%, range 8.6% to 85.0%) despite the headline drop from 85.0% — the prior comparable was at the top of that range rather than the new period being weak. Working-capital movement of NZ$1.2m and debtor days of 6.8 are not driving the cash result.

The capital-allocation picture is where caution applies. With capex running above revenue and pre-lease FCF at the lower edge of the recent range, the improved leverage ratio is doing work the operating cash flow is not. The dividend is supported by reported earnings, but not by free cash, so its sustainability depends on continued access to debt or equity at the current cost.

Unresolved

Open questions

Why was the prior-period effective tax rate 98.4%, and is the 24.1% current rate the right normalised assumption going forward?
What is the planned capex shape over FY26-FY28, and when does the programme inflect to allow FCF generation?
How much of the NZ$1.86bn equity uplift is retained earnings versus issued capital, and is further equity required to fund the programme?
Is the 51.2% payout against NPAT consistent with a stated dividend policy, given the dividend is not covered by free cash flow?
How are aeronautical and property segment results expected to evolve as new capacity comes online?

This briefing cannot assess the regulated aeronautical pricing path, expected returns on the in-flight capex, or any specific funding plan, because none of those are supplied in the release set.

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Ask about AIA FY25

Ask follow-up questions about Auckland International Airport's FY25 result.

Informational only. No buy, sell, hold, price-target, or personal financial advice.

Ask about AIA FY25

Informational only. No buy, sell, hold, price-target, or personal financial advice.

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Sign in to ask questions about Auckland International Airport's FY25 result.

Why was the prior-period effective tax rate 98.4%, and is the 24.1% current rate the right normalised assumption going forward?Why does "The capital cycle defines the economics" matter?How strong was the cash and earnings quality in FY25?What should I watch next for AIA after FY25?

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Data appendix

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Sources

Current period

AIA - Annual Results Presentation

FY25 / results presentation↗

AIA - FY25 Annual Report

FY25 / financial report↗

AIA - FY25 Annual Results Market Release

FY25 / results release↗

AIA - FY25 Results Announcement

FY25 / results announcement↗

Prior comparable period

AIA - FY24 Annual Report

FY24 / financial report↗

AIA - FY24 Annual Results Market Release

FY24 / results release↗

AIA - FY24 Results Announcement

FY24 / results announcement↗

AIA - FY24 Results Presentation

FY24 / results presentation↗

Interim context

AIA - FY25 Interim Results Announcement

HY25 / results announcement↗

AIA - FY25 Interim Results Market Release

HY25 / results release↗

AIA - FY25 Interim Results Presentation

HY25 / results presentation↗

AYA - FY25 Interim Results Financial Statements

HY25 / financial report↗

Release context

AIA - Analyst and media webcast for FY24 annual results

FY24 / commentary↗

AIA - Craigs Investment Partners Queenstown Investor Day

FY24 / commentary↗

AIA – Analyst and media webcast for FY25 annual results

FY25 / commentary↗

AIA - 2024 Annual Meeting: Chair & Chief Executive addresses

HY25 / commentary↗

AIA - Webcast details for FY25 Interim Results

HY25 / commentary↗

Related insights

Cross-company views selected from the metrics in this briefing.

Cash conversion quality

This result converted 57.4% of EBITDA to operating cash flow, -27.6pp versus the prior comparable period.

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Earnings quality and statutory distortions

This result includes a statutory earnings-quality distortion flag.

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Dividend coverage and payout pressure

Dividend payout versus NPAT is 51.2%.

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Leverage and balance-sheet risk

Net debt / EBITDA is 2.32x, -1.90x versus the prior comparable period.

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This briefing is based on available company filings and standard Annolyse calculations. It is general information only and does not constitute financial advice. The analysis may contain errors. Always read the original company filings and consult a licensed financial adviser before making investment decisions.

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