Heartland Group’s $620 million acquisition of TSB Bank will not complete this year. Heartland told the market it is now targeting 1 March 2027, three months later than planned, citing the Reserve Bank’s assessment of the deal and its separate review of TSB’s books.
BusinessDesk read the announcement as being about administrative process rather than any substantive stumbling block. That is the comfortable interpretation. The more useful one for anyone watching New Zealand banking is that the timetable is being set by a regulator checking whether TSB has been reporting its own safety numbers correctly. That is not sentiment or shareholder nerves. It is due diligence with statutory teeth.
The clock started in September
On 18 September the Reserve Bank issued TSB a Section 95 notice under the Banking (Prudential Supervision) Act, requiring an independent report on its compliance with liquidity, capital and reporting requirements. These notices are not routine, with only a handful issued over the past few years. Deloitte was appointed, with a draft due at the end of October and the final report going to the regulator this month. That timing lines up neatly with the new completion date.
Two errors, a long time unnoticed
The notice followed TSB self-reporting two problems. The first is a liquidity calculation error dating back to 2010, when liquidity rules first took effect. TSB had classified some funding as non-market when it should have been treated as market funding. Its ratios stayed above regulatory minimums throughout, but the bank was still reporting the wrong numbers for 16 years.
The second was a capital issue identified in 2019, where TSB used loan-to-value ratios set at origination instead of recalculating them each reporting period. That was fixed as at 30 September 2025 with the impact deemed immaterial, and TSB holds roughly $192 million of capital above its minimum requirements.
TSB insists it remains well capitalised and frames the Deloitte work as “an additional level of independent assurance” ahead of the merger. That may well prove right. But immaterial outcomes do not make the underlying failure trivial. Regulatory reporting is the basic contract between a bank, its supervisor and its depositors. Getting a core ratio wrong for a decade and a half is a governance question, not a rounding error.
This is regulation earning its keep
B2B News is no fan of regulatory overreach, and the Reserve Bank has given critics plenty of material. This is not that. Before a deal reshapes the market, creating a combined entity that would rank seventh behind the big four, Kiwibank and Rabobank, the supervisor is checking that the target’s numbers are real. Any acquirer should want the same thing.
Heartland appears to agree. Chief executive Andrew Dixson said in September the company would consider any relevant findings, including implications for the transaction. Heartland went further, warning that if the review’s outcomes are materially different to what is known today, the deal may not complete. Shareholder approval is not the last word. The transaction still depends on Reserve Bank approval, the Section 95 outcome and a material adverse change condition.
The buyer can afford to be patient
Heartland is negotiating from strength. Net profit after tax rose to $93.2 million in FY2026 from $38.8 million, and the bad-loan ratio improved to 1.92%. The Reserve Bank cut Heartland Bank’s transitional capital overlay from 2.0% to 0.5% in March, and the banking group held about $110 million in surplus capital at 30 June, alongside projected synergies of $34 million a year from the merger. The regulator clearly trusts Heartland’s own books. Its questions are about what Heartland is buying.
TSB was squeezed before it slipped
There is a second, structural story here. BusinessDesk columnist Andrew Body argues TSB is being sold for 75% of net tangible assets because Reserve Bank settings undermined its competitive position, with its return on equity falling from 11.5% to 5.5% while the majors grew their valuations. He wants relief for non-systemic banks.
Both things can be true. Compliance costs weigh hardest on small banks, and a lender stretched thin is more likely to miss errors in its own reporting. The answer to that is lighter rules for small players, not looser scrutiny of the ones being merged.
The politics have not gone away either. Taranaki residents failed in a High Court injunction bid, Kiwibank’s owner floated interest in keeping TSB locally owned, and Toi Foundation is set to hold 17.5% of the combined group.
March is the real test
If Deloitte confirms what TSB says, the delay will look like prudence and Heartland gets a cleaner bank at a discounted price. If it does not, the material adverse change clause becomes live and the regional challenger bank story stalls. Either way, the outcome rests on TSB’s homework, and business owners banking with either lender should watch the Reserve Bank’s verdict more closely than any share price move.
Sources
- NZ Herald: TSB-Heartland merger delayed as Reserve Bank scrutinises proposal after requiring TSB’s financials to be externally reviewed (2026-11-11)
- NZX: Update on target completion date for proposed TSB transaction (2026-11-12)
- BusinessDesk: Completion date for Heartland Bank’s buy of TSB Bank delayed (2026-11-11)
- RNZ: RBNZ seeks report on TSB’s capital and liquidity calculations (2026-09-25)
- interest.co.nz: RBNZ orders independent review of TSB capital and liquidity (2026-09-25)
- TSB: TSB commissions assurance report (2026-09-25)
- BusinessDesk: Heartland’s $620m buy of TSB Bank may still fail (2026-09-24)
- NZX: Heartland acknowledges TSB Section 95 Notice (2026-09-25)
- Heartland Group 2026 Annual Report (2026-09-29)
- BusinessDesk: NZ bank regulation reform back on the agenda (2026-10-14)
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