Spouse Super Contribution Calculator
Find out how much tax offset you can claim for contributing to your low-income spouse's superannuation fund.
How the Spouse Contribution Tax Offset Works
If your spouse earns a low income, you can contribute to their super fund and claim an 18% tax offset on contributions up to $3,000. This is a direct reduction in your tax payable — not just a deduction — making it one of the most effective ways to boost a low-income spouse's retirement savings.
Income Thresholds
- Spouse income ≤ $37,000: Maximum offset of $540 (18% of $3,000)
- Spouse income $37,001–$40,000: Offset phases out — for every $1 over $37,000, the $3,000 eligible contribution reduces by $1
- Spouse income > $40,000: No offset available
What Counts as Spouse Income?
Spouse income for this purpose includes taxable income, total reportable fringe benefits, and reportable employer super contributions. It does not include tax-free government payments. If your spouse salary sacrifices, those amounts are added back into their income for this test.
Eligibility Requirements
- You and your spouse must be Australian residents
- Your spouse must be under 75 years old
- Your spouse must not have exceeded their non-concessional contributions cap
- The contribution must be made to a complying super fund (not a defined benefit fund in most cases)
- You cannot claim the offset for contributions to your own super
Why It's Valuable
At the maximum, you invest $3,000 and receive $540 back as a tax offset — an immediate 18% return before any investment growth. Combined with super's concessional earnings tax environment, this is a very efficient way to build your spouse's retirement savings and equalise super balances between partners.