Who This Guide Is For
This guide is for Australian employees, self-employed individuals, and retirees who want to understand how superannuation contributions work and how to maximise their tax benefits. If you have ever wondered about the difference between concessional and non-concessional contributions, how much you can put into super each year without penalties, or whether you can use unused caps from previous years — this is for you.
Super contributions are one of the most powerful tax-planning tools available to Australians. By contributing to your super, you can potentially reduce your taxable income while building long-term retirement wealth. But the rules around contribution caps are strict, and getting them wrong can mean paying penalty tax at the top marginal rate.
Super Contribution Types and Caps — The Essentials
1. Concessional (Before-Tax) Contributions
Concessional contributions are made from your pre-tax income. These include:
- Employer Super Guarantee (SG) contributions: Your employer must contribute 12% of your ordinary time earnings (FY2025–26).
- Salary sacrifice contributions: Additional contributions you arrange with your employer from your pre-tax salary.
- Personal deductible contributions: Contributions you make yourself and claim as a tax deduction.
These contributions are taxed at just 15% inside your super fund — substantially lower than most people's marginal tax rate.
According to the ATO, the concessional contributions cap for FY2025–26 is $30,000 per person, per financial year. This cap applies to the combined total of all concessional contributions made for you.
Key point: The $30,000 cap covers everything — employer SG, salary sacrifice, and personal deductible contributions combined.
2. Non-Concessional (After-Tax) Contributions
Non-concessional contributions are made from your after-tax income. You do not claim a tax deduction for these contributions, and they are not taxed when they enter your super fund.
The ATO sets the non-concessional contributions cap at $120,000 per financial year for FY2025–26. This is exactly four times the concessional cap.
Non-concessional contributions can be a great way to boost your super balance, especially if you have received a lump sum from an inheritance, property sale, or bonus.
3. The Carry-Forward Rule (Unused Concessional Caps)
If your total super balance was less than $500,000 at 30 June of the previous financial year, you can use the carry-forward rule. This lets you access unused concessional cap amounts from up to five previous financial years.
Calculation example:
Jane's employer contributed $14,000 SG in FY2022–23. She made no other concessional contributions. The cap that year was $27,500, so she has $13,500 unused. In FY2025–26, Jane wants to maximise her contributions. Her available cap is $30,000 (current year) + $13,500 (carried forward from FY2022–23) = $43,500 total. Note that unused caps expire after five years — Jane must use her FY2022–23 unused amount by 30 June 2028.
4. The Bring-Forward Rule (Non-Concessional)
If you are under 75 and your total super balance is below the general transfer balance cap ($1.9 million), you may use the bring-forward rule. This allows you to contribute up to three years' worth of non-concessional caps in a single year.
| Age (at 1 July) | Max Bring-Forward | Total Cap (over 3 years) |
|---|---|---|
| Under 75 | 3 years | $360,000 |
| 75+ | Not available | $120,000 p.a. only |
Important: The bring-forward rule is triggered automatically when your non-concessional contributions exceed the annual cap of $120,000. You do not need to apply or elect — the ATO applies it automatically.
5. Government Co-Contribution
If you earn under $60,400 (FY2025–26 threshold) and make a personal after-tax contribution, the government may match it up to $500. The maximum co-contribution of $500 applies when you earn $45,400 or less and contribute at least $1,000. It phases out at $60,400.
This is essentially free money from the government for lower-income earners.
6. Spouse Contribution Tax Offset
If you contribute to your spouse's super, you may be eligible for a tax offset of up to $540 (18% of up to $3,000 contributed). Your spouse's income must be under $40,000 for the full offset, phasing out at $37,000 The phase-out range is $37,000 to $40,000..
According to the ATO, you must keep written evidence for all deductions claimed. This includes receipts, invoices, and bank statements showing the amount, date, and nature of each expense (ATO guidelines).
Common Mistakes Australians Make with Super Caps
| Mistake | Why It's Wrong | What to Do Instead |
|---|---|---|
| Exceeding concessional cap without realising SG counts toward it | The $30K cap includes employer SG. If your employer pays $18K SG and you salary sacrifice $15K, your total is $33K — $3K over | Add up ALL concessional contributions (SG + salary sacrifice + personal deductible) before making extra contributions |
| Thinking non-concessional cap resets each year independently of bring-forward | Once you trigger the bring-forward rule, you are locked into a 3-year window | Check your total super balance and bring-forward eligibility before making large after-tax contributions |
| Forgetting about carry-forward eligibility | Unused caps from 5 years ago expire if not used | Review your unused cap amounts each year. Log into myGov/ATO to see your available carry-forward amounts |
| Assuming you can split contributions across fund types | Contribution caps apply across ALL your super funds combined | Consolidate your super and track all contributions centrally |
| Missing the 30 June deadline for claiming a deduction | Personal deductible contributions must be made before 30 June (receipt by fund) | Submit contributions at least 5 business days before EOFY |
Records to Keep
- Annual super statements from all funds
- Notice of intent to claim a deduction (must be acknowledged by your fund)
- Salary sacrifice agreement with your employer
- Bank statements showing personal after-tax contributions
- myGov ATO records of your total super balance at 30 June each year
Quick Checklist
- Check your total super balance at last 30 June
- Calculate total concessional contributions already made this year (SG + salary sacrifice)
- Review unused concessional cap amounts from the last 5 years on myGov
- If planning non-concessional contributions over $120K, check bring-forward eligibility
- If earning under $60,400, consider government co-contribution
- Lodge a notice of intent with your fund before claiming a personal deduction
- Make all contributions at least 5 business days before 30 June
*Still unsure about your contribution strategy? a registered tax agent (see the directory) For a broader view, see our decision guide on whether you need professional tax advice.*
*Disclaimer: This is general information only. Superannuation rules are complex and subject to change. Consult a registered tax agent or licensed financial adviser for advice tailored to your personal situation.*