EOFY 2026 Super Contribution Deadlines: Why 30 June Isn't Really the Deadline

For tax purposes, a personal super contribution is deductible only if it has been received and accepted by your super fund on or before 30 June 2026. "Received" means cleared — sitting in the fund's bank account in your name. Not initiated, not in transit, not pending — actually arrived.

Most super funds need 5–10 business days to receive and clear a contribution from BPAY, EFT or cheque. The big retail and industry funds publish a "last-day-to-contribute" date in mid-June each year. Practically, you should be lodging a personal deductible contribution by Monday 22 June 2026 at the latest. Some funds cut off earlier.

The other deadlines that matter in the EOFY window:

• SG Q4 (April–June 2026) — must arrive in the fund by 28 July 2026.
• Spouse contribution for tax offset — must clear by 30 June 2026 (same fund-clearing nuance applies).
• Government co-contribution — same 30 June 2026 cleared deadline.
• Carry-forward unused concessional cap — caps from years older than 2020-21 expire at 30 June 2026.

Authoritative sources: ATO — Concessional contributions cap, ATO — SG payment due dates.

The ATO's rule under section 290-160 of the Income Tax Assessment Act 1997 is unambiguous: a personal contribution is deductible in the income year only if it has been received by the fund in that year. Not lodged, not posted, not transferred. Received and credited to the member account.

The practical consequence is that 30 June 2026 is not a real cutoff for most contribution methods. Here's how long each method actually takes:

• BPAY from your transaction account — typically 1-3 business days, but can be longer if your bank or the fund batches receipts. Most funds advise allowing 5 business days.
• EFT from your bank to the fund's clearing house — 1-2 business days within Australia.
• Direct credit into the fund's bank account (using the fund's reference number) — same-day to 1 business day.
• Cheque — 5-10 business days from postage. The fund needs to receive the cheque and bank it.
• Salary sacrifice — the contribution counts when it leaves your employer's payroll and clears in the fund. Your final 2025-26 salary sacrifice from a late-June pay run might not clear until July, falling into 2026-27 instead.

The 2026 calendar is unkind: 30 June 2026 is a Tuesday. So a Tuesday transfer made late in the day might not clear until Wednesday 1 July — already in the next financial year. Banks process based on the receiving bank's processing window, which you don't control.

Defensive action: Lodge by Monday 22 June 2026. If you wait until the last week of June, you're betting on bank and fund processing windows you can't see.

If you're claiming a tax deduction for a personal super contribution, you need to lodge a Notice of Intent to Claim or Vary a Deduction (NAT 71121) with your super fund before:

• You lodge your tax return for the income year, OR
• The end of the income year following the year of contribution (so for 2025-26 contributions, by 30 June 2027), whichever comes first.

The fund must acknowledge the notice in writing. Without that acknowledgement, the ATO will disallow your deduction.

The Notice of Intent is separate from the contribution itself. The contribution must clear by 30 June 2026 to be in the right financial year; the Notice of Intent can come later. But practically, lodging both at the same time is cleaner — most funds let you submit electronically through the member portal in 5 minutes.

Common error: rolling over your super to a different fund before lodging a Notice of Intent. Once the balance has rolled out, the original fund can't acknowledge the notice. Your deduction is lost. Always lodge the Notice of Intent before any rollover.

Under current rules (until Payday Super starts 1 July 2026), employers pay Super Guarantee quarterly. The Q4 contribution covers wages from 1 April 2026 to 30 June 2026. The deadline for that contribution to arrive in the fund is 28 July 2026.

Important: this is the deadline for SG counted as paid in 2025-26. If the SG arrives after 28 July, it counts in the next financial year for cap purposes and your employer faces the SG charge (penalty) for late payment.

For the employee:

• SG paid before 30 June 2026 counts in the 2025-26 concessional cap.
• SG paid 1-28 July 2026 (legally on time but in the next financial year) counts in the 2026-27 cap.
• SG paid after 28 July 2026 — late, employer in breach, possible Superannuation Guarantee Charge.

For employees managing their cap carefully, this matters: a Q4 SG contribution that lands in early July rather than late June effectively shifts the cap usage from one year to the next. If your employer pays SG monthly or fortnightly (more common for larger employers), your final 2025-26 contribution typically clears by mid-June.

From 1 July 2026, Payday Super takes over: SG must be paid into the fund within 7 days of every regular pay run. Quarterly is gone for new pay events from that date.

Both of these are EOFY-relevant for low-income or part-time spouses.

Spouse contribution tax offset — a working spouse can contribute up to $3,000 to a non-working or low-income spouse's super and claim a tax offset of up to $540. The contribution must be received by the spouse's fund by 30 June 2026. Same clearing-time rules apply as personal contributions.

Eligibility for the maximum offset:

• Receiving spouse's annual income under $37,000 — full $540 offset on a $3,000 contribution.
• Income $37,000 to $40,000 — partial offset, phased out.
• Income above $40,000 — no offset.
• Receiving spouse's total super balance must be under the general transfer balance cap ($1.9 million in 2025-26).

Government co-contribution — for low-income earners, the government matches 50 cents per dollar of after-tax personal contributions, up to $500 per year. To qualify in 2025-26:

• Total annual income under $46,488 for the maximum match.
• Phased out at incomes $46,488 to $61,488.
• You must lodge a tax return.
• 10% or more of your total income must be from employment or business.
• Personal after-tax contribution made and cleared by 30 June 2026.

The co-contribution arrives in your super fund 60-90 days after the ATO processes your tax return — not immediately. Plan around that delay if you're using the strategy at multiple income points.

If your total super balance at the previous 30 June is below $500,000, you can carry forward unused concessional cap from up to 5 prior financial years. The oldest year of unused cap expires each 30 June — once it's gone, it's gone.

For 2025-26 (the income year ending 30 June 2026), the eligible carry-forward years are:

• 2020-21 cap — expires 30 June 2026 (this is your last chance to use any unused 2020-21 cap)
• 2021-22 cap — expires 30 June 2027
• 2022-23 cap — expires 30 June 2028
• 2023-24 cap — expires 30 June 2029
• 2024-25 cap — expires 30 June 2030

If you had a slack year — perhaps unemployed, on parental leave, or simply not maxing out salary sacrifice — you may have substantial unused cap sitting available. Pulling it back before 30 June 2026 can be the single biggest EOFY tax move available, particularly in a year where your income is unusually high (a redundancy, a bonus, an investment property sale).

Check your CFUC balance via myGov → ATO → Super → Information.

Worked example — Tara, $145,000 income, sold an investment property for $80,000 capital gain in March 2026:

• Without action: capital gain pushed her into the 37% bracket on the gain. Estimated tax on the gain: ~$15,000.
• Total super balance at 30 June 2025: $230,000 (under the $500,000 threshold).
• CFUC balance: $42,000 of unused cap from 2020-21 to 2024-25.
• Action: $30,000 standard concessional cap + $42,000 CFUC = $72,000 personal deductible contribution made by 22 June 2026.
• Tax saving: $72,000 × (39% − 15%) = approximately $17,280.

The arithmetic only works if the cap headroom genuinely exists and the cash-flow can support the contribution. Get specific advice for substantial moves.

• By 31 May 2026 — log in to myGov, check your concessional cap usage for the year so far, check your CFUC balance, decide on any spouse contribution or co-contribution moves, decide on a personal deductible contribution amount.
• By 15 June 2026 — initiate any large contributions. Allow 7+ business days for clearance.
• By 22 June 2026 — last sensible day for personal deductible contributions, spouse contributions, and co-contribution-triggering personal contributions. Lodge Notice of Intent to Claim a Deduction at the same time.
• 30 June 2026 — financial year end. Check your fund member portal that contributions show as received.
• 1 July 2026 — Payday Super starts; new minimum wage applies.
• 28 July 2026 — Q4 SG deadline for employers (last quarter under the old quarterly rule).
• From 1 July 2027 (next year) — submit Notice of Intent and lodge tax return with deduction claimed.

What if I make a contribution on 30 June and it doesn't clear until 1 July?
The contribution counts in the income year it's received by the fund, not the year it leaves your account. A 30 June initiation that clears 1 July counts in the 2026-27 year. Your deduction for 2025-26 is lost on that contribution unless you've made others that did clear in time.

Can I make a contribution after 30 June and apply it to the previous year?
No. There is no retrospective contribution. The receipt date by the fund is the determining date.

Are personal after-tax (non-concessional) contributions also deadline-sensitive?
Yes — non-concessional contributions count in the year they're received by the fund. The non-concessional cap is $120,000 per year, with bring-forward rules allowing up to $360,000 over 3 years for those under 75 with eligible total super balance.

Can I make multiple contributions across the year?
Yes. The concessional cap is a total annual ceiling; how you split contributions across the year is up to you. Each individual contribution must be received by 30 June to count in the year.

What happens if I exceed my concessional cap?
Excess concessional contributions are added back to your assessable income at marginal rates with a credit for the 15% contributions tax. There's also an excess concessional contributions interest charge. You can elect to withdraw 85% of the excess from the fund.

Does my employer's salary sacrifice count toward 30 June or 28 July?
It counts when the contribution is received by the fund. Salary sacrifice from a late-June pay run that processes on 30 June and reaches the fund on 2 July counts in 2026-27, not 2025-26.