The Fine Print Australia · PUBLISHED 28 JUN 2026 · VERIFIED 28 JUN 2026 · AU EDITION

$18.9 Billion in Lost Super Australia — Is Some Yours? 🇦🇺

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The ATO holds just over $18.9 billion in lost and unclaimed super across almost 7.3 million accounts, meaning an average of roughly $2,600 per missing account that is not currently invested for its rightful owner.

The number that matters

The big stat is $18.9B — total lost and ATO‑held superannuation as at 30 June 2025, covering just under 7.3 million separate super accounts, according to the Australian Taxation Office (ATO, Super data: lost, unclaimed, multiple accounts and consolidations, 2025).

How it quietly costs you

Mechanism: “Lost” and “unclaimed” status quietly disconnects your money from you and, often, from investment growth.

• The ATO reports that total lost (fund‑held) and ATO‑held super was just over $18.9 billion as at 30 June 2025, across just under 7.3 million accounts.
• Of this, lost super held by funds (idle accounts still with super funds) was $12.7 billion in 2025, up from $11.8 billion in 2024, $10.1 billion in 2023, and $10.4 billion in 2022.
• “Lost super” typically means super held by a fund where the account is inactive (no contributions or rollovers for 12 months), often with fees still being deducted.
• “Unclaimed super” is generally small or inactive accounts under $6,000 with no contribution for 16 months that are automatically transferred to the ATO.

Impact on individuals: money not invested or eaten by fees.

• When super is transferred to the ATO as unclaimed, it “won’t be growing” in the way it would in an invested super fund account.
• The Minister for Financial Services cites ATO data showing nearly $19 billion in lost and unclaimed super and notes that the average amount of unclaimed super is $2,590 per person, money that could grow into thousands more by retirement through compounding.
• Lost super that remains with a fund can still attract account fees and insurance premiums, which gradually erode small balances over time.

Old vs better: typical erosion vs consolidated, invested account.

• A small $2,590 lost balance left idle (no further contributions, still charged fees) may stagnate or shrink; by contrast, $2,590 invested in a mainstream super fund earning, say, 5–7% p.a. over decades could compound into tens of thousands of dollars — the Minister’s release frames it as “thousands of dollars by retirement”.
• The ATO notes a continuing rise in total lost fund‑held super, from $10.1 billion in 2023 to $12.7 billion in 2025, underscoring how many people are not consolidating these accounts into active, invested funds.

Regulator/source: Australian Taxation Office (ATO) super statistics and Treasury/Minister for Financial Services media release.

The second, compounding trap

Mechanism: Multiple accounts and automatic transfers to the ATO compound the leakage.

• The ATO’s lost and unclaimed super data explicitly tracks multiple accounts and consolidations, showing that many individuals have more than one super account and that not all are being actively managed.
• Super funds are required to transfer “unclaimed super” to the ATO when accounts remain small and inactive under the legislative criteria (e.g. balance less than $6,000, no contributions for 16 months).
• Industry funds warn that once your account is transferred to the ATO, you are no longer a member of the fund and any insurance through your super account will also stop.

Quantified cost of inaction: fees, lost insurance, and foregone compounding.

• Australians had $17.8 billion in lost and unclaimed super at the ATO’s last check in 2024, according to ATO‑based figures cited by major funds.
• This rose to just over $18.9 billion by 30 June 2025, an increase of around $1.1 billion in a single year, highlighting how quickly balances become disconnected and sit outside active retirement planning.
• The Minister’s office emphasises that millions of Australians could be “thousands of dollars better off in retirement” by reclaiming and consolidating these balances, with $2,590 cited as the average unclaimed amount per person.

Long‑run cost: compounding on a “missing” $2,590–$5,000 balance.

• On a conservative illustration basis: if a worker has $2,590 of unclaimed super sitting with the ATO from early career and leaves it there for 30 years, the difference between 0% growth and a typical super fund earning around 5–7% p.a. is substantial; the Minister’s statement frames this as “thousands of dollars by retirement”.
• For someone with multiple small lost accounts totaling say $5,000–$10,000, failing to consolidate can mean tens of thousands of dollars less at retirement compared with investing those balances over decades, even after allowing for fees — a direct product of the $18.9 billion system‑wide gap identified by the ATO.

Regulator/source: ATO lost and unclaimed super statistics and Treasury/Minister for Financial Services media release.

What this looks like in practice

Persona

• Name: Sarah
• Age: 34
• Job: Marketing manager in Sydney
• Income: $95,000 per year (assumed typical professional income; inference, not from a specific source)
• Super arrangement: employer contributions to a major retail fund; no salary sacrifice.
• Current known super balance: $55,000 (assumed for modelling; not from a specific source).
• Years to retirement at age 67: 33 years (simple arithmetic).

Discovery 1 — A forgotten early‑career fund worth ~$2,600

• Using ATO online services through myGov, Sarah finds one lost super account with a balance of around the average unclaimed amount: $2,590, matching the ATO’s cited average per person.
• She realises it has been inactive for more than 16 months and meets the criteria for “unclaimed super” that can be transferred to the ATO if she does nothing.
• Compared with leaving it as lost/unclaimed (no investment growth), consolidating $2,590 into her main fund where it earns market returns could mean thousands more at retirement, consistent with the Minister’s compounding framing.

Discovery 2 — A second “lost” account still being charged fees

• The ATO’s lost super tools show a second fund‑held lost account, contributing to the $12.7 billion total lost super held by funds in 2025.
• This account is small, say $1,500 (assumed, but representative of small inactive balances), and has seen no contributions for over 12 months, which is part of the definition of “lost super”.
• Compared with an active consolidated balance, this $1,500 has been stagnating and eroded by ongoing account fees and insurance premiums; it forms part of the system‑wide $12.7 billion that is idle, fee‑exposed money.

Discovery 3 — ATO‑held super and lost insurance

• Sarah learns via a super fund’s guidance that when a super account is transferred to the ATO as unclaimed, she is no longer a member of that fund and any insurance linked to that account stops.
• She sees that some of her previous cover depended on her old fund membership, meaning the automatic transfer rules not only affected her savings but also her protection.
• In money terms, she realises that if her two small accounts totaling about $4,000 ($2,590 + ~$1,500) had been consolidated and invested, the long‑run difference at retirement could be many thousands of dollars more than leaving them lost or ATO‑held — consistent with the Minister’s “thousands of dollars by retirement” description.

The full cost of doing nothing

Using Sarah’s scenario:

• Lost / unclaimed amounts discovered: $2,590 (typical unclaimed amount per person) + $1,500 (small lost fund‑held account) ≈ $4,090 total.
• If this $4,090 remains split between a lost fund‑held account and ATO‑held unclaimed super, it effectively earns little to no investment return and may be eroded by fees on the fund‑held portion.
• If instead it is consolidated today into her active super fund and invested for 33 years until age 67, even a moderate return rate consistent with typical super investing (e.g. around 5–7% p.a.) would compound that $4,090 into many multiples of the original balance; the Minister’s office frames such average balances as turning into “thousands of dollars” more by retirement.

Headline combined impact (modelling basis):

• Basis:
• Starting “missing” balance: $4,090 (Sarah’s two accounts, anchored to the ATO’s $2,590 average unclaimed amount).
• Time horizon: 33 years to retirement.
• Qualitative comparison: 0% growth (lost/ATO‑held) vs typical super investment growth.
• Outcome:
• The difference is several thousand dollars at retirement for Sarah, representative of the millions of Australians the Minister says “could be thousands of dollars better off in retirement” by reclaiming their share of the nearly $19 billion in lost and unclaimed super.

This individual modelling sits within the broader system‑wide impact of $18.9 billion not currently optimised for retirement outcomes.

What to do about it

Move 1 — Check all your super via ATO online (myGov)

1. Action:

• Log in to your myGov account and use ATO online services to perform a super health check for lost or ATO‑held super.

2. Tool/portal & where to find the figure:

• Tool: ATO online services via myGov.
• Navigate to Super → Fund details to view lost and active super accounts, including ATO‑held amounts.

3. Three concrete steps:

• Create or log in to myGov and link the ATO to your profile if not already linked.
• Select Super, then Fund details to see a list of all your super accounts, including any marked as lost or ATO‑held.
• Note each fund name and balance, then initiate consolidation from within the portal or contact your chosen fund to roll these into your main account.

4. What “good” looks like:

• You have one main active super account, understand all balances, and no amounts showing as lost or ATO‑held in your ATO online services.

Move 2 — Use the ATO’s Super Health Check

1. Action:

• Complete the ATO’s 5‑step Super Health Check to identify lost and unclaimed super and multiple accounts.

2. Tool/portal & where to find the figure:

• Tool: ATO Super Health Check (NAT 75486 and online guide).
• It gives step‑by‑step instructions on checking your super, including lost and ATO‑held balances, via ATO online services through myGov.

3. Three concrete steps:

• Access the Super Health Check instructions on the ATO website.
• Follow the checklist: verify your personal details with the ATO and your fund, check for multiple accounts, and identify lost or ATO‑held super.
• Use the consolidation options in ATO online services or through your preferred fund to roll all balances into your main fund.

4. What “good” looks like:

• Your super passes the health check: updated details, no unexpected multiple accounts, and no lost or ATO‑held balances remaining unclaimed.

Move 3 — Call the ATO lost super search line

1. Action:

• Phone the ATO’s automated lost super search line to cross‑check for any super not visible online or tied to older details.

2. Tool/portal & where to find the figure:

• Tool: ATO lost super search self‑service line on 13 28 65.
• The operator/automated system can confirm details of unclaimed super transferred to the ATO that may not show in ATO online services, including the amount of unclaimed superannuation money (USM) transferred to the ATO.

3. Three concrete steps:

• Prepare your tax file number, full name, date of birth, and known super fund details.
• Call 13 28 65 and follow the prompts to perform a super check, asking specifically about any USM transferred to the ATO.
• Request instructions or forms to reclaim any identified balances and then consolidate them into your active fund.

4. What “good” looks like:

• After the call, you have confirmed there is no additional ATO‑held unclaimed super in your name beyond what you see in ATO online services, and any found amounts are in the process of being reclaimed and consolidated.

A myth worth clearing up

Myth: “Lost super isn’t worth worrying about — it’s only small amounts and the government or funds will automatically fix it.”

Fact:

• The ATO and Treasury data show just over $18.9 billion in lost and ATO‑held super across just under 7.3 million accounts as at 30 June 2025, with the average unclaimed amount per person $2,590.
• The Minister for Financial Services explicitly states that millions of Australians could be thousands of dollars better off in retirement by reclaiming this super and that completing the ATO Super Health Check is reuniting people with “thousands of dollars now” that can grow further via compound interest.

Evidence: ATO super statistics and Treasury/Minister media release on nearly $19 billion lost and unclaimed super.

Sources

• https://www.ato.gov.au/about-ato/research-and-statistics/in-detail/super-statistics/super-accounts-data/super-data-lost-unclaimed-multiple-accounts-and-consolidations/total-lost-fund-held-and-ato-held-super
• https://ministers.treasury.gov.au/ministers/daniel-mulino-2025/media-releases/millions-australians-could-be-missing-out-their-share
• https://www.ato.gov.au/forms-and-instructions/superannuation-searching-for-lost-superannuation
• https://qsuper.qld.gov.au/super/lost-super

Researched 2026-06-28.

Corrections & disclosure: an AI-assisted, human-reviewed guide. Every figure is dated and sourced above. Spot something out of date or wrong? Tell us and we’ll correct it — corrections are noted here and in the video description.