Couples Superannuation Strategies: Spouse Contributions, Splitting and How to Maximise Your Combined Retirement Savings in 2026

Why Couples Should Think About Super Together

Superannuation in Australia is an individual system. There are no joint super accounts, no family pooling options, and each person’s balance sits in their own name. But retirement is rarely an individual experience. Most couples retire together, spend together, and need their combined savings to last.

This disconnect between how super works and how couples actually live creates both challenges and opportunities. The challenges are obvious: one partner often has significantly less super than the other, particularly if they took time out of the workforce for caring responsibilities. The opportunities are less well known but equally significant. Australian tax law provides several mechanisms for couples to build super together, reduce tax, and maximise their combined retirement income.

With contribution caps increasing from 1 July 2026, the end of financial year approaching, and ongoing cost-of-living pressures squeezing household budgets, now is the time for couples to review their super strategy.

The Super Gender Gap: Why Couples Need a Joint Approach

The superannuation gender gap remains one of the most persistent financial inequalities in Australia. According to the Workplace Gender Equality Agency (WGEA), women retire with approximately 25% less super than men on average. ABS data from 2024 shows median super balances at retirement of around $200,000 for women compared to $270,000 for men.

The reasons are structural:

• Women are more likely to work part-time (particularly during child-rearing years)
• The gender pay gap means lower SG contributions even when working full-time
• Career breaks for caring responsibilities create years of zero contributions
• Women are over-represented in lower-paid industries

For couples, this isn’t just a fairness issue. It’s a strategic one. Having two well-funded super accounts provides meaningful financial advantages over one large account and one small one.

The Practical Benefits of Balanced Super

The transfer balance cap alone makes this worth paying attention to. A couple with $4.0 million in combined super could hold all of it in tax-free pension phase if split evenly. The same couple with $3.5 million in one account and $500,000 in the other would have $1.5 million stuck in accumulation phase, where earnings are taxed at 15%.

Strategy 1: Spouse Contributions

Spouse contributions are after-tax (non-concessional) contributions you make directly into your partner’s super account. They’re one of the simplest ways to build a lower-earning spouse’s balance while claiming a tax benefit yourself.

How It Works

You contribute your own after-tax money into your spouse’s super fund. If your spouse earns less than $40,000 per year (including assessable income, reportable fringe benefits and reportable super contributions), you may be eligible for a tax offset.

The Tax Offset

The spouse contribution tax offset works as follows:

The offset is calculated at 18% of contributions up to $3,000. So if you contribute $3,000 or more to your spouse’s super and they earn under $37,000, you get the full $540 offset on your tax return.

Important Rules

• The contribution counts towards the receiving spouse’s non-concessional contribution cap ($120,000 for 2025-26, rising to $130,000 from 1 July 2026)
• Your spouse must be under 75 years old
• There’s no limit on how much you can contribute (beyond the non-concessional cap), but the tax offset only applies to the first $3,000
• Your spouse’s total super balance must be below $1.9 million on 30 June of the previous year to make any non-concessional contributions

When Spouse Contributions Make Sense

This strategy is particularly valuable for couples where one partner is:

• On parental leave or working part-time while caring for children
• Studying or retraining
• Between jobs
• Working in a low-paid role
• Self-employed with irregular income

Even if the $540 tax offset seems modest, the real value is in building the lower-earning spouse’s super balance over time. Contributing $3,000 per year for 20 years (assuming 7% average annual returns) would grow to approximately $131,000, a significant boost to retirement savings that might otherwise not exist.

Strategy 2: Contribution Splitting

Contribution splitting is different from spouse contributions. Instead of contributing new money, you redirect a portion of contributions that have already been made to your own super into your spouse’s account.

How It Works

You can apply through your super fund to split up to 85% of your concessional (before-tax) contributions from the previous financial year into your spouse’s super account. Concessional contributions include:

• Employer SG contributions
• Salary sacrifice contributions
• Personal deductible contributions

Key Rules

A Worked Example

Sarah earns $150,000 and receives $18,000 in employer SG contributions (12%). She also salary sacrifices $12,000, bringing her total concessional contributions to $30,000 (the current cap).

Sarah can split up to 85% of the previous year’s concessional contributions with her husband James, who works part-time and earns $45,000.

If Sarah splits $25,500 (85% of $30,000) into James’s account, over 10 years that’s $255,000 in contributions alone, plus investment returns. This could bring James’s balance much closer to Sarah’s, unlocking the double transfer balance cap benefit in retirement.

Why Contribution Splitting Matters for Division 296

From 1 July 2025, the Division 296 tax applies an additional 15% tax on earnings for individuals with total super balances above $3 million. For high-balance couples, contribution splitting in earlier years can help keep both partners below this threshold.

Consider a couple with combined super of $5 million. If it’s split $4M and $1M, one partner faces Division 296 on $1 million of their balance. If it’s split $2.5M and $2.5M, neither partner is subject to the additional tax.

The catch: contribution splitting needs to happen over many years to meaningfully shift balances. It’s a long-term strategy, not a last-minute fix.

Strategy 3: Co-Contribution Matching

The government co-contribution is a free boost for low and middle-income earners who make after-tax super contributions. For couples where one partner earns under the threshold, this is essentially free money.

How It Works

If you earn less than $60,400 (2025-26 threshold) and make a personal after-tax contribution to your super, the government will match it up to $500. The maximum co-contribution applies if you earn $45,400 or less and contribute at least $1,000.

Eligibility Requirements

• You must lodge a tax return for the year
• At least 10% of your income must come from employment or business
• Your total super balance must be below $1.9 million on 30 June of the previous year
• You must be under 71 years old at the end of the financial year
• You must not have exceeded your non-concessional cap

For couples, the higher-earning partner could give the lower-earning partner $1,000 to contribute to their own super, triggering the co-contribution. It’s a 50% return on a $1,000 investment, which is hard to beat.

Strategy 4: Salary Sacrifice and Personal Deductible Contributions

While not couple-specific, salary sacrifice is a core strategy that becomes more powerful when coordinated between partners. The goal is to ensure both partners are maximising their concessional contributions up to the cap.

Current and Upcoming Caps

Using Carry-Forward Contributions

If your total super balance was below $500,000 on 30 June of the previous year, you can carry forward unused concessional cap amounts from the past five financial years. This is particularly valuable for the lower-earning partner who may not have used their full cap in previous years.

Example: James has a super balance of $180,000 and has only used $15,000 of his $30,000 concessional cap in each of the past three years. He has $45,000 in unused cap space ($15,000 x 3 years). In the current year, James could contribute up to $75,000 in concessional contributions ($30,000 current cap + $45,000 carried forward) and claim a full tax deduction.

At a marginal tax rate of 32.5% (plus Medicare levy), a $75,000 deductible contribution would save approximately $28,125 in income tax, minus the 15% contributions tax of $11,250, for a net tax saving of $16,875.

Strategy 5: Timing Around the July 2026 Cap Increases

The upcoming cap increases create a specific timing opportunity for couples.

Before 30 June 2026

• Use up remaining concessional cap space at $30,000 per person
• Make spouse contributions to claim the tax offset in the 2025-26 return
• Apply for contribution splitting of 2024-25 concessional contributions
• Ensure the lower-earning partner makes at least $1,000 in after-tax contributions to trigger the co-contribution (if eligible)
• If using the bring-forward rule, consider whether to trigger it now ($360,000 maximum) or wait until after 1 July ($390,000 maximum)

After 1 July 2026

• New concessional cap of $32,500 per person, an additional $2,500 each or $5,000 for a couple
• New non-concessional cap of $130,000 per person
• Bring-forward maximum increases to $390,000 (for those under 75 with balances under $1.84 million)
• Transfer balance cap rises to $2.1 million per person ($4.2 million for a couple)

The Bring-Forward Decision

If you’re considering a large non-concessional contribution and haven’t triggered the bring-forward rule, waiting until after 1 July 2026 gives you access to $390,000 instead of $360,000, an extra $30,000.

However, if you need to make contributions before 30 June for other reasons (such as getting funds into super before a business sale or to reduce assessable assets for Centrelink purposes), the $360,000 limit still applies.

Centrelink and Age Pension Considerations

For couples approaching or in retirement, super balance equalisation can affect Age Pension entitlements. Centrelink assesses each partner’s assets and income individually but uses combined figures for the assets and income tests.

The key consideration is the deeming rates applied to financial assets. Currently:

Having super in pension phase doesn’t change how it’s assessed for Centrelink purposes, as account-based pensions are still counted as financial assets subject to deeming. However, the way you structure withdrawals and which partner draws down first can influence how long pension entitlements last.

Common Mistakes Couples Make With Super

1. Ignoring the Lower Balance

Many couples focus on maximising the higher earner’s super because the tax deductions are more valuable at a higher marginal rate. While this makes sense in isolation, it can leave the couple worse off in retirement if one partner’s balance is too low to utilise their transfer balance cap.

2. Not Applying for Contribution Splitting

Contribution splitting requires an application to your super fund. It doesn’t happen automatically. Many couples who would benefit simply don’t know it exists or forget to apply.

3. Missing the Co-Contribution

If the lower-earning partner is eligible for the government co-contribution, failing to make even a small after-tax contribution means missing out on free money.

4. Triggering the Bring-Forward Rule at the Wrong Time

With caps increasing from 1 July 2026, triggering the bring-forward rule in 2025-26 locks you into the lower $120,000 annual cap for the three-year period. If you can wait, you’ll get the higher $130,000 cap.

5. Not Considering Division 296

Couples with combined super above $6 million should be actively splitting contributions to keep both balances below $3 million where possible. Once Division 296 applies, the additional 15% tax on earnings significantly erodes returns.

Action Plan for Couples Before 30 June 2026

Here’s a step-by-step checklist:

1. Check both balances. Log into both super accounts and note the current balances.
2. Review contribution history. Check how much concessional and non-concessional cap space each partner has used this year.
3. Calculate unused carry-forward amounts. If either partner’s balance was below $500,000 on 30 June 2025, check for unused concessional cap from the past five years.
4. Make spouse contributions. If one partner earns under $40,000, contribute at least $3,000 to claim the tax offset.
5. Apply for contribution splitting. Contact your super fund to split last year’s concessional contributions.
6. Trigger the co-contribution. If one partner earns under $60,400, have them make a $1,000 after-tax contribution.
7. Decide on the bring-forward rule. If planning large non-concessional contributions, consider whether to act before or after 1 July 2026.
8. Get advice. A financial adviser or accountant can model the long-term impact of these strategies for your specific situation.

Getting Professional Help

Super strategies for couples involve interactions between contribution caps, tax offsets, Centrelink thresholds, and investment timeframes. The right combination depends on your ages, income levels, existing balances, and retirement timeline.

A qualified financial adviser can model scenarios specific to your situation and help you avoid costly mistakes. An accountant can ensure your contributions are structured for maximum tax efficiency.

Find a verified financial adviser or accountant on WealthWorks who specialises in superannuation and retirement planning.