ASB is one of New Zealand’s largest KiwiSaver providers, managing billions of dollars on behalf of members across the country. Like ANZ, a significant portion of ASB’s KiwiSaver base arrived through automatic enrolment and default allocation — but ASB has also invested in its digital tools and fund range to retain members who might otherwise switch.
This review takes an independent look at whether ASB KiwiSaver stacks up in 2026.
Disclosure: MoneyBalance does not have a commercial relationship with ASB. This review is based on publicly available information and general market knowledge. Always verify current fees, fund details, and performance figures directly with ASB before making any decision.
For a comparison across providers, see Best KiwiSaver providers NZ (2026).
ASB KiwiSaver at a Glance
| Detail | ASB KiwiSaver |
|---|---|
| Type | Bank-affiliated, active management |
| Default provider status | No — not selected in 2021 government review |
| Funds offered | 6 main funds |
| Management fee (approx) | 0.40%–0.85% depending on fund |
| Member fee | No flat member fee |
| FUM (approx) | $16+ billion |
| Supervisor | New Zealand Permanent Trustees |
| Regulated by | Financial Markets Authority (FMA) |
| Ethical/ESG option | No dedicated ethical fund |
ASB’s Fund Range
ASB offers six funds across the risk spectrum, all actively managed through ASB’s investment team.
| Fund | Approx growth/defensive split | Est. annual fee | Suited to |
|---|---|---|---|
| Cash | 0% / 100% | ~0.40% | Capital preservation, very short horizon |
| Conservative | ~15% / 85% | ~0.50% | 1–3 years to goal |
| Moderate | ~35% / 65% | ~0.57% | 3–7 years |
| Balanced | ~55% / 45% | ~0.65% | 7–15 years |
| Growth | ~80% / 20% | ~0.75% | 15+ years |
| Aggressive | ~100% / 0% | ~0.85% | Longest horizon, highest risk tolerance |
Fees are estimates based on publicly available information. Verify current fees at asb.co.nz/kiwisaver.
A notable feature of ASB’s range is the Aggressive fund — a 100% growth asset fund that few bank-affiliated providers offer. For young members with a very long investment horizon and high risk tolerance, this option provides maximum equity exposure within the KiwiSaver structure.
For an explanation of what growth and defensive assets are across all fund types, see KiwiSaver fund types explained.
ASB KiwiSaver Fees
ASB’s fees sit slightly below ANZ’s and are among the more competitive offerings from the bank-affiliated providers — though still significantly higher than low-cost passive providers.
Fee comparison — growth fund on $50,000 balance, 10 years (8% gross return):
| Provider | Est. annual fee | 10-year fee cost (est.) |
|---|---|---|
| Low-cost passive (e.g., Simplicity at 0.31%) | 0.31% | ~$2,200 |
| ASB Growth (~0.75%) | 0.75% | ~$5,200 |
| ANZ Growth (~1.00%) | 1.00% | ~$6,800 |
ASB charges no flat annual member fee, which provides a small advantage for members with lower balances (under approximately $10,000–$15,000) compared to providers who charge a fixed $30–$36/year.
The gap between ASB’s ~0.75% and a passive provider at 0.31% represents roughly $3,000 over 10 years on a $50,000 balance — a meaningful but not extreme difference compared to higher-fee active providers.
ASB’s Digital Tools — a Genuine Strength
ASB is frequently cited as one of the better bank-affiliated providers for its digital KiwiSaver experience. Key features include:
KiwiSaver Tracker: ASB’s “KiwiSaver Tracker” tool projects your estimated balance at retirement based on your current contributions and chosen fund. It allows you to adjust salary, contribution rate, and retirement age to see how the numbers change. For members who want a simple “am I on track?” answer, this is one of the more intuitive tools available through a bank.
Integration with ASB banking: Like ANZ, ASB shows your KiwiSaver balance within its main banking app (ASB Mobile app and online banking). Fund switching and contribution rate changes are accessible within the same interface.
Fund switching: Easy online switching with no forms — changes take effect within a few business days.
What it lacks:
- No automatic life-stage fund switching
- No sophisticated income modelling for drawdown in retirement
- No real-time balance updates (daily unit price, not real-time)
For members who value digital tools and a seamless banking-KiwiSaver experience, ASB competes well with the other bank providers.
ASB KiwiSaver Performance
ASB’s funds are actively managed, meaning the investment team makes decisions about what to hold and in what proportions, rather than simply tracking an index.
The performance picture for ASB’s growth and aggressive funds has generally been competitive among active managers over 5- and 10-year periods. However, the same caution applies as with all active managers: after fees, consistent long-term outperformance of passive index funds is difficult to sustain.
The Aggressive fund has historically delivered strong returns in bull market periods, given its 100% equity exposure. In down markets (such as 2022 when global equities fell significantly), it also fell more sharply than balanced or growth funds. This is expected behaviour — the risk profile is what it is.
What to check: Compare after-fee returns over 5+ years using the Morningstar KiwiSaver Survey or the FMA’s annual KiwiSaver data. Look at the same risk-category peer group (growth vs growth, not growth vs balanced).
No Dedicated Ethical Investment Option
Unlike some providers (Pathfinder, Booster Socially Responsible, ANZ Responsible Investment), ASB does not offer a dedicated ESG or ethical KiwiSaver fund. ASB does incorporate some ESG factors into its investment process, but there is no screened or socially responsible fund to select.
For members who want explicit ethical screens on their KiwiSaver, ASB is not the right provider. See Best KiwiSaver providers NZ for a comparison of ethical fund options.
ASB’s Default Provider Status
Like ANZ, ASB was not selected as a default provider in the 2021 government review. New employees who do not choose a KiwiSaver provider from late 2021 onwards are not allocated to ASB. Existing ASB members are unaffected.
The new default panel (BNZ, Booster, Generate, Milford, Simplicity, and others) was chosen based on criteria including lower fees, quality of default fund, and ethical investment requirements — areas where the bank-affiliated providers were considered to fall short.
Pros and Cons
Pros:
- Fees (~0.40%–0.85%) are slightly below ANZ’s and competitive among bank providers
- No flat annual member fee
- Aggressive fund (100% growth assets) available — rare among bank-affiliated providers
- Good digital tools including the KiwiSaver Tracker
- KiwiSaver integrated into ASB banking app
- Large, stable institution — financially very secure
Cons:
- Fees still materially higher than low-cost passive providers (0.10%–0.31%)
- No dedicated ethical or ESG fund
- Lost default provider status in 2021
- Active management fees not consistently justified by after-fee performance over long periods
- No automatic life-stage switching
Who ASB KiwiSaver Suits
ASB KiwiSaver is a reasonable choice for:
- ASB banking customers who value consolidated banking and KiwiSaver in one app
- Members who want an Aggressive (100% growth) fund option that most bank providers do not offer
- Members who want basic retirement projection tools integrated into their bank
- Members who prioritise provider stability and brand familiarity
ASB KiwiSaver may not be the best choice for:
- Members focused on maximising their long-term balance — the fee difference from passive providers is meaningful over 20–30 years
- Members who want ethical/ESG investment screens
- Self-employed members who contribute voluntarily and want to minimise fee drag on their own money
- First home buyers maximising their KiwiSaver first home withdrawal amount
Honest assessment: ASB is one of the better bank-affiliated KiwiSaver providers, particularly for its digital tools and slightly more competitive fees. But it still costs meaningfully more than passive alternatives over the long term. Members with large balances or long time horizons should model the fee difference before staying by default.
Switching from ASB KiwiSaver
If you decide to switch away from ASB:
- Choose a new provider and apply online
- The new provider contacts ASB and arranges the transfer
- Your balance transfers within approximately 35 days
- Employer contributions redirect to your new provider automatically
Your contribution history, years of membership, and first home withdrawal eligibility all carry over. See the KiwiSaver provider switching guide for the full process.
Frequently Asked Questions
Is ASB or ANZ KiwiSaver better?
ASB’s fees are slightly lower than ANZ’s, and its digital tools (particularly the KiwiSaver Tracker) are considered strong. ASB also offers an Aggressive fund that ANZ does not. On most criteria, ASB edges ANZ for bank-affiliated members — but both remain significantly more expensive than passive providers.
Can I switch from ASB to another provider without losing my history?
Yes. Switching providers does not reset your years of membership, your contribution history, or your eligibility for the first home withdrawal. The 3-year clock continues from your original enrolment date regardless of provider switches.
Does ASB KiwiSaver have an ethical fund?
No. ASB incorporates some ESG factors in its investment process but does not offer a dedicated ethical or screened fund. Pathfinder, Booster, and others offer more explicit ethical options.
What is ASB’s default fund if I have never chosen one?
New members who have not made an active fund choice are typically placed in ASB’s Moderate fund. Check your current fund in the ASB mobile app or by calling ASB’s KiwiSaver team.
Does ASB offer a first home buyer calculator?
ASB’s KiwiSaver Tracker can project your balance at any future date, which effectively functions as a first home withdrawal estimator. For a detailed breakdown of what goes into your withdrawal amount, see How much can I withdraw from KiwiSaver for my first home?
What happens to my ASB KiwiSaver if I leave New Zealand permanently?
Permanent emigrants can apply for a withdrawal of their KiwiSaver balance after 12 months overseas, subject to certain criteria. Contact ASB or IRD for the current process.
Key Takeaways
- ASB is one of NZ’s largest providers with a broad 6-fund range including an Aggressive (100% equity) option
- Fees of approximately 0.40%–0.85% are slightly below ANZ’s but well above low-cost passive alternatives
- ASB’s KiwiSaver Tracker is one of the better retirement projection tools from a bank provider
- ASB did not retain default provider status in the 2021 review
- No dedicated ethical or ESG fund — members with sustainability preferences should look elsewhere
- The best reasons to choose or stay with ASB are bank integration convenience and the Aggressive fund option
For a full comparison across NZ’s top providers, see Best KiwiSaver providers NZ (2026) and How to choose a KiwiSaver fund.