You log in to check your super and it's travelling nicely. Then your partner mentions their balance, and your stomach drops. Years of part-time work, career breaks to raise children, or time spent caring for parents have left them with a fraction of what you've built. Nobody plans a lopsided retirement — it happens one reasonable decision at a time. If this is your household, take a breath. The gap is common, it's fixable, and the super system has three built-in tools designed for exactly this job. Used steadily through your late 40s and 50s, they can move the dial a long way before retirement arrives.
Why the gap is worth closing
It's tempting to shrug and say it's all one pot anyway. It isn't. Super is held individually, and that matters in ways couples often discover too late. Two healthy balances give you more flexibility about who retires when, and more room to draw tax-free income in retirement. If the relationship ends, or one of you dies first, how the money is split suddenly matters a great deal.
There can be an age pension angle too: super sitting in the accumulation account of a partner who hasn't yet reached age pension age is generally not counted in the means test, which can help the older partner qualify. The rules here have real nuance, so check your own situation with Services Australia before building a plan around it.
And there's the quieter reason: watching your own retirement savings grow changes how secure you feel. Both partners deserve that.
Strategy one: a spouse contribution earns you a tax offset
If your partner earns under $37,000 a year, you can put up to $3,000 of after-tax money into their super and claim a tax offset of 18 per cent of the contribution — up to $540 — when you do your tax return. The offset shrinks as their income rises above $37,000 and disappears once it reaches $40,000.
A few conditions apply: your partner must be under 75, they can't have gone over their own after-tax contribution cap, and their total super balance must be under the general transfer balance cap. But if you qualify, it's about the simplest deal in the system: help your partner's super and get $540 back for doing it.
Strategy two: split your contributions with them
Contribution splitting lets you transfer up to 85 per cent of last financial year's concessional (before-tax) contributions — your employer's contributions, any salary sacrifice, and personal contributions you claimed a deduction for — into your partner's account. If $20,000 of concessional contributions went into your super last year, up to $17,000 of it can be moved across.
The receiving partner must be under preservation age (now 60), or between 60 and 65 and not yet retired. You apply through your fund, usually in the financial year after the contributions were made, and the split doesn't change whose contribution cap was used — the contributions still count against yours. One warning: not every fund offers splitting, and some charge a fee, so ask before you plan around it.
Done every year through your 50s, splitting steadily rebalances the household's super without costing you a single extra dollar of income.
Strategy three: help them fill their own caps
If your partner is earning again, the most powerful move may be contributions in their own name. From 1 July 2026 the concessional cap is $32,500 a year, and it now includes a catch-up feature made for people who've had years out of the workforce: if their total super balance was under $500,000 at the previous 30 June, they can use unused concessional cap amounts from up to five earlier years. A partner who spent a decade part-time may have a large stock of unused cap waiting — a salary sacrifice arrangement or a personal deductible contribution can use it and cut their tax at the same time.
After-tax money works too. The non-concessional cap is $130,000 this financial year, so an inheritance, a bonus or the proceeds of selling an asset can go straight into the smaller balance.
If you're behind, and what to watch
Maybe retirement is close and the gap is wide. Don't write it off. Start with the cheapest win — the spouse contribution and its offset — then set up a splitting request for this year, and revisit the caps whenever pay rises or windfalls arrive. Money moved across in the final working decade still gets years of compounding, and once it supports a retirement income stream, the earnings become tax-free.
A few things to watch. The caps and thresholds change — the contribution caps rose on 1 July 2026, and they'll move again — so check the current figures before acting. Splitting requests have deadlines tied to the financial year. And if large sums, an inheritance or a self-managed super fund (SMSF) are involved, the interactions get complicated enough that an hour with a licensed financial adviser is money well spent.
The gap didn't appear overnight and it won't close overnight. But a couple who treats super as a team sport, and uses these three tools every year, will be surprised how quickly two unequal balances start to look like partners.
Want the whole super system explained without the jargon? Super Made Simple (7th Edition) is Noel Whittaker's plain-English guide, updated for the current financial year — buy direct from the author for $16.95, delivered instantly as PDF and EPUB.
This article is general information only and doesn't take account of your personal circumstances. Figures are current at time of writing and change each financial year. Consider seeking advice before acting.