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SBS KiwiSaver Review NZ 2026: Southland Building Society

Updated

SBS Bank (Southland Building Society) is a New Zealand mutual banking institution headquartered in Invercargill. Its KiwiSaver offering, the SBS Wealth KiwiSaver Scheme, is run by SBS Wealth, a wholly-owned subsidiary. This review covers the mutual ownership structure, the scheme’s two highest-growth funds, their fees and the High Growth fund’s five-year record to 30 June 2026. Other schemes are covered in our KiwiSaver provider reviews.

SBS KiwiSaver at a Glance

Feature Detail
Type Mutual bank (member-owned)
Default provider No
Investment approach Managed/active
Highest-growth fund fees About 1.21% to 1.24% (High Growth and Focused Growth, both classified Aggressive; Sorted Smart Investor)
High Growth Fund (aggressive category) 5-yr return 8.83% p.a. to 30 June 2026 (Sorted Smart Investor)
Member-owned structure Yes (mutual, not shareholder-owned)
Main regions Branches mostly in the South Island, some in the North Island; scheme available nationally

Who Is SBS Bank?

SBS Bank is a member-owned mutual bank: there are no external shareholders, and profits are reinvested in the business or returned to members.

SBS Bank’s branches are mostly in the South Island, with some in the North Island such as Tauranga. Its KiwiSaver scheme is available nationally.

Fund Range

SBS Wealth’s fund range does not include a plain “Growth” fund. Its two highest-growth options are named High Growth and Focused Growth, both classified in the “Aggressive” risk category on Sorted Smart Investor:

Fund Risk category Fee (per Sorted Smart Investor) 5-yr return (to 30 June 2026)
High Growth Aggressive 1.24% 8.83%
Focused Growth Aggressive 1.21% No 5-yr data: launched 28 April 2025

Sorted says Aggressive funds typically hold from 90% to 100% growth assets, against 63% to 90% for the Growth category, so their returns should be compared with other Aggressive funds rather than with growth funds. The scheme’s statement of investment policy (August 2026) lists four funds, High Growth, Focused Growth, Income and Cash, plus a Lifestages option that adjusts your allocation to the funds by age; check Sorted for their current fees and returns.

Fees

At 1.24%, SBS Wealth’s High Growth fund costs about $620 a year on $50,000 and $1,240 on $100,000; at 1.21%, Focused Growth costs about $605 and $1,210. Sorted Smart Investor puts the average fee for aggressive-category funds at 0.84% (shown for a $40,000 balance). Check the PDS for any member fee on top.

For other providers’ fees side by side, see the KiwiSaver fund fees comparison.

Performance

SBS Wealth’s High Growth Fund returned 8.83% a year after fees and tax over the 5 years to 30 June 2026 (source: Sorted Smart Investor). Its newer Focused Growth fund (launched April 2025) has no 5-year record yet. Past returns don’t predict future returns, and a fund close to 100% growth assets can also fall further in a downturn. For other funds over the same five years, see KiwiSaver fund returns.

Mutual Ownership

SBS’s mutual structure means there are no external shareholders to pay. Its KiwiSaver fees (1.21% to 1.24% on the higher-growth funds) are set by SBS Wealth like any other provider’s, so ownership structure on its own doesn’t tell you what a fund costs: compare the fee in the fund update.

Features and Limitations

Features:

  • Banking and KiwiSaver in one institution for SBS customers
  • Mutual (member-owned) structure, with a Southland and South Island base
  • High Growth fund 5-year after-fee, after-tax return of 8.83% to 30 June 2026

Limitations:

  • Fees of 1.21% to 1.24% on the higher-growth funds, above the 0.84% aggressive-fund average on Sorted
  • No standard “Growth” fund; the highest-growth options are in the higher-risk “Aggressive” category
  • Not a default provider

Where to check the latest data

Rates, fees and returns change often. Before deciding, check current figures yourself:

  • Sorted Smart Investor: compares fees, returns and risk levels of KiwiSaver and managed funds.
  • Disclose register: holds each fund's product disclosure statement and quarterly fund updates.
  • The provider's latest fund update: gives the fund's current fees, returns and holdings.

Frequently Asked Questions

How has SBS KiwiSaver performed? The High Growth fund returned 8.83% a year after fees and tax over the 5 years to 30 June 2026, at a 1.24% fee, in the higher-risk Aggressive category (Sorted Smart Investor).

What is SBS Bank’s ownership structure? SBS Bank is a mutual: member-owned with no external shareholders. This is different from commercial banks (ANZ, ASB, BNZ, Westpac) but similar in principle to credit unions and building societies. Profits are reinvested rather than paid to shareholders.

Is SBS KiwiSaver available outside Southland? Yes. SBS KiwiSaver is open to anyone who meets KiwiSaver’s eligibility rules (a New Zealand citizen or entitled to live in New Zealand indefinitely, and normally living in New Zealand), wherever they live in the country. SBS’s branches are mostly in the South Island, but the KiwiSaver scheme is nationwide.

How do I join SBS KiwiSaver? Join online at SBS Wealth’s website if you are over 18, or complete an application form from a local SBS branch or an approved distribution partner. If you’re moving from another provider, SBS arranges the transfer; see how to switch KiwiSaver provider.