Super: the unsexy winner

The most boring vehicle in your stack is also the best one.

Super has a branding problem. It sounds like something your dad complains about at Christmas, run by a faceless fund with a logo from 2003. Most blokes I know treat it like the laundry: necessary, ignored, occasionally moved.

That's an expensive habit.

Concessional contributions to super are taxed at 15% inside the fund (or 30% over Division 293 thresholds). Outside super, the same dollar earned at the top marginal bracket gets taxed at 45% plus Medicare. The arbitrage is enormous, structural, and government-endorsed. If a bank offered it as a product, you'd queue overnight. Because it's compulsory, you yawn.

Stop yawning.

The caps, in plain numbers (FY 2025-26)

• Concessional cap: $30,000/yr (includes employer SG and salary sacrifice). Indexed.
• Non-concessional cap: $120,000/yr, or $360,000 under the 3-year bring-forward rule (subject to Total Super Balance < $1.9m).
• Carry-forward unused concessional: if your TSB was under $500k at 30 June prior year, you can mop up unused cap from the previous five years.
• Division 293: an extra 15% tax on concessional contributions for incomes over $250k. Still a win versus the marginal rate, just less of one.
• Government co-contribution: up to $500 if you earn under ~$60k and put in $1k non-concessional. (Ask your partner.)
• Spouse contribution offset: $540 tax offset if your partner earns under $40k and you contribute $3k for them.

Memorise the first two. The rest are corner cases that matter when they matter.

Why super beats most things, mathematically

Run a comparison. $20k of pre-tax salary, invested for 20 years at 7% real return.

• Outside super (top bracket): $20k becomes ~$10.5k after tax. Compounded at 7% over 20 years (with annual returns taxed roughly at marginal): roughly $26-30k depending on franking and CGT discounting.
• Inside super (accumulation, 15% contributions tax, 15% on earnings, 10% on capital gains): $20k becomes $17k after contributions tax. Compounded over 20 years at 7% real (effective ~6% after fund tax): roughly $54k.

The inside-super number is roughly double. Same dollar, same return assumption, two different worlds. That's the unsexy winner.

For someone planning to retire at 50, super matters even more, because you're using non-super assets to bridge the gap to preservation age (60 for most readers). Every dollar inside super is a dollar that compounds at favourable tax for the post-60 version of you. Every dollar outside funds the 50-60 version. Both matter. Build both.

My own approach (not yours, mine)

I run salary sacrifice up to the concessional cap most years. The years I don't, it's because I'm clearing other debt or the cash needs to live in offset for a property settlement. I treat the $30k cap as a hard target, not a ceiling. Missed cap = forgone arbitrage.

Non-concessional contributions I use sparingly, usually after a windfall (sale of a property, distribution from a trust). The 3-year bring-forward of $360k is the underrated weapon for anyone selling a business or downsizing.

For my partner, I make spouse contributions in years she earns less. $540 offset is small money, but it's free money, and the contribution still grows tax-favoured.

SMSF, or not?

The eternal question. Self Managed Super Funds get sold like a status symbol. They're a tool, not a trophy.

When SMSF makes sense:

• Balance over ~$500k (preferably $750k+). Below that, fixed admin costs eat the tax advantage.
• You actually want to invest in something a retail/industry fund can't hold. Direct property. Specific concentrated equities. Crypto via a compliant custody arrangement. Unlisted assets.
• You'll do the trustee paperwork. Or pay someone competent to.
• You have a partner / family members to pool with, spreading admin costs across multiple members.

When SMSF doesn't:

• You want "more control" but you'll just buy ETFs and bank stocks. An industry fund's high-growth option does this for 0.1%.
• You'll forget the audit deadlines.
• Your accountant pitched it (their hobby, not yours).
• You're going to use it to buy a beach house through a related party. (Don't. The ATO is creative.)

I run an SMSF. It exists because I want to hold direct property and a concentrated equity slice the retail funds can't accommodate. If those two facts weren't true I'd still be in HostPlus High Growth, paying 0.07% and going to the beach. Most people should be.

The default that beats most defaults

For 90% of readers, the right answer is depressingly simple:

1. Pick an industry fund with a high-growth option and fees under 0.5% (HostPlus, AustralianSuper, Aware, REST, Rest, ART, all defensible).
2. Set salary sacrifice to fill the concessional cap each FY.
3. Check the insurance default. Usually you have too much TPD/death cover bleeding your balance. Trim it.
4. Forget about it for 30 years.

That fund will outperform 80% of "engaged" investors who tinker. Do less. Win more.

A few traps I've watched men walk into

• Defined benefit confusion. If you're public sector or military with a defined-benefit fund, the rules are different. Don't apply accumulation logic.
• Missing the carry-forward window. If your TSB drifts above $500k mid-life, you lose the catch-up cap forever. Use it before you cross.
• Insurance auto-renewal nibbling balance. Default cover for a 35-year-old can be $40-60/month. Over 25 years compounded, that's a holiday.
• Cap breaches. Concessional excess gets refunded with interest, but it's annoying and triggers paperwork. Set salary sacrifice with a margin, not at the bone.
• Forgetting your partner's super. A retire-by-50 plan that only optimises one balance is a retire-at-65 plan with extra steps.

What to do this week

• Log into your fund. Check the balance, the option (Balanced vs High Growth), the fee, and the insurance.
• Set salary sacrifice to fill the concessional cap, factoring SG.
• Talk to your partner about hers. Mirror the strategy.
• If you're over $500k TSB, pull out the carry-forward statement from MyGov. See if there's room to mop up.

Boring. Compounding. Decisive.

Not financial advice. Talk to an adviser before acting.

Further watching

• Everything You Need To Know About Superannuation (in 10 Minutes)
• How I Saved 70% of My Income & Reached $1M FIRE | Aussie Firebug