Concessional Contributions Cap 2024: $30k Limit Guide

If you’ve been thinking about topping up your super, the 2024-25 financial year marks a pivotal moment to act. The annual concessional contributions cap climbed to $30,000 — a meaningful shift from the $27,500 ceiling that held from 2021 to 2024. Go over that limit, and the Australian Taxation Office can hit you with an excess contributions tax bill that reaches up to 47% for top-bracket earners. The good news: unused caps from the prior five years can be carried forward, giving many workers a second chance to catch up.

Concessional cap 2024/25: $30,000 · Previous cap 2021-2024: $27,500 · Indexation trigger: From 1 July 2024 · Carry-forward available: Unused cap from 5 prior years · Excess contributions tax: Up to 47% on excess

What is the maximum concessional super contribution for 2024-2025?

Cap amount from 1 July 2024

The Australian Taxation Office sets the 2024-25 concessional cap at $30,000 per financial year. Every dollar of employer super guarantee, salary sacrifice, or personal tax-deductible contribution counts against this ceiling. The moment your annual total crosses $30,000, the excess triggers a tax event — unless a carry-forward unused cap applies.

Indexation changes

Concessional caps don’t rise every year. The ATO applies indexation only when average weekly ordinary time earnings growth hits a trigger threshold, and that hasn’t happened annually. The trajectory tells the story: the cap sat at $25,000 in 2020-21, ticked up to $27,500 on 1 July 2021 when indexation finally fired, then climbed again to $30,000 from 1 July 2024. For 2025-26, the $30,000 figure looks set to hold unless wage growth data forces another adjustment — something the ATO has yet to confirm.

Carry-forward provisions

One of the more powerful mechanics in the system flies underused: carry-forward concessional caps. If you didn’t max out your contributions in prior years, those unused amounts don’t vanish — they stack up behind you for up to five years. Someone who contributed nothing in 2019-20, for instance, can still claim that $25,000 cap space today, as long as their total super balance sat under $500,000 at the previous 30 June and the expiry window hasn’t closed. The ATO automatically applies your contributions against the oldest available unused cap first, which means the planning is largely done for you — but checking your balance via MLC ensures no surprises.

What happens if I go over my concessional contributions cap of $30,000?

Excess tax treatment

When excess concessional contributions slip through — even after the ATO’s carry-forward rules absorb what they can — the financial hit lands at your marginal tax rate, not a flat penalty. Your excess amount gets added to your personal assessable income, and the ATO calculates the bill as if it were regular income, then applies a 15% tax offset for the contributions tax already paid. For a worker on the 47% marginal rate, that arithmetic can bring the effective tax rate on excess contributions close to the top bracket. Heffron breaks down the mechanics in detail.

Release authority option

The ATO gives you a safety valve: elect to withdraw the excess from your super. Once you receive the ATO notice, you have 60 days to lodge an election, and the choice is irreversible. After election, your fund issues a release authority and refunds 85% of the excess amount directly to you — the remaining 15% covers the contributions tax already processed. Heffron’s client guide walks through the exact mechanics. The fund then has 10 business days to pay, per the release authority rules.

Division 293 tax

If your income plus concessional contributions exceeds $250,000, you’re already in Division 293 territory — and excess contributions make it worse. The additional 15% tax on concessional contributions already applies at this threshold, pushing the combined tax on excess amounts toward 30% before the marginal rate stacks on top. High earners essentially face a double layer of tax on any overcontribution, making the cost of going over cap disproportionately steep compared to someone on a lower marginal rate.

What is the difference between concessional and non-concessional super contributions?

Tax treatment

The core distinction is timing and deduction. Concessional contributions are made from pre-tax income — your employer pays them before income tax, or you salary-sacrifice and claim a deduction — and they arrive in your super fund net of a flat 15% contributions tax. Non-concessional contributions come from money already taxed as personal income, so no deduction applies, but no contributions tax hits either. The tax consequence when you exceed each cap reflects this difference: excess concessional gets taxed at your marginal rate, while excess non-concessional faces a flat 47% unless you elect withdrawal.

Eligibility rules

Concessional contributions are available to anyone under 75 with an income basis, including mandatory employer guarantee contributions that employers must pay regardless of age. Non-concessional contributions carry a work test for those aged 67 to 74, requiring at least 40 hours of paid work in 30 consecutive days during the financial year before those contributions can be made. Downsizer contributions — proceeds from selling a primary residence after age 60 — sit outside both caps entirely, which Wealth Collective identifies as a notable exemption worth knowing.

Caps and limits

The numerical separation matters practically. Concessional caps are indexed and currently sit at $30,000 for 2024-25. Non-concessional caps are separate and higher: $120,000 per year for 2025-26. The bring-forward rule for non-concessional lets eligible members contribute up to three years’ worth — $360,000 — in a single hit, which is a distinct mechanism from concessional carry-forward. Someone with a total super balance at or above $500,000 loses access to both carry-forward and bring-forward, effectively capped at the annual figure for each contribution type.

What are concessional contributions?

Types included

Concessional contributions span three main streams. Employer super guarantee contributions — the 11.5% (rising toward 12% by 2025) your boss pays as a legal obligation — sit at the core and always count as concessional. Salary sacrifice arrangements redirect part of your pre-tax salary into your super fund, also concessional and subject to the cap. Personal deductible contributions allow self-employed or employed individuals to claim a tax deduction for personal contributions made from after-tax income, converting them into concessional status.

Who can claim

Almost everyone under 75 can make or receive concessional contributions, with few gatekeeping barriers for the employed. The employer guarantee flows automatically and counts regardless of your intent. For personal deductible contributions, you need to lodge a valid notice of intent to claim a deduction with your fund before lodging your tax return — the ATO requires this reporting, and timing matters. Self-employed individuals with net income from business activities are the clearest beneficiaries, but salaried workers who forgo salary sacrifice in favour of personal contribution strategies can also leverage the deduction route.

Reporting requirements

The paper trail flows through your fund and the ATO automatically. Employers report contributions on your behalf through the quarterly BAS or single-touch payroll systems, and funds report annual member contribution statements after year-end. For personal deductible contributions, you must issue a notice of intent to your fund — and your fund must acknowledge it — before you lodge your tax return. The ATO caps overview page outlines the exact timelines and obligations in full.

How to avoid excess concessional contributions?

Track contributions

The simplest guard against excess is monitoring — but most people don’t check mid-year. Your employer reports contributions through the year, and your super fund’s annual statement shows your total at year-end. By then, excess contributions have already happened and the tax consequences are locked in. The better habit is checking your running total via your fund’s online portal or the ATO’s services through MLC’s portal before making any lump-sum contributions, particularly toward the end of the financial year when salary sacrifice allocations often cluster.

Use cap estimator

The ATO’s online tools include a superannuation contributions cap calculator that estimates your position based on expected employer and personal contributions. For self-managed super fund members or those with multiple employers paying guarantee into separate funds, this estimator is the practical tool for avoiding surprises. Wealth Collective notes that the ATO applies carry-forward automatically when you exceed the cap — so the system does catch a lot of overages — but automatic carry-forward only uses previously unused caps you actually had.

Carry-forward strategy

For people with lumpy income — freelancers, business owners with variable profits, or anyone who took unpaid leave — the carry-forward window is the primary planning tool. The rules are clear: you must max the current year cap first, then the system reaches back up to five years. The oldest unused cap expires first in the rolling window, which means a structured approach to catching up should target the oldest gaps first. SuperGuide notes that new migrants may not see carry-forward information in MyGov until their first contribution record is processed by the ATO, which can delay visibility into your actual position.

“Your excess concessional contributions are counted as personal assessable income and taxed at your marginal tax rate.”

— Heffron (Super Specialist)

“The ATO automatically applies your contributions against your oldest available unused cap first.”

— Wealth Collective (Financial Advisor)

Related reading: CPI Increase 2024

High-income earners maximising concessional contributions under the $30k 2024 cap must also navigate the Division 293 tax guide, which adds 15% tax when income thresholds are breached.

Frequently asked questions

The 2024-25 financial year has reset the contribution ceiling at $30,000 — a number that will hold or adjust based on whether wage growth triggers indexation for 2027-28. The carry-forward provisions make the cap more forgiving than it looks: unused amounts stack up across five years, and the ATO applies them automatically. But that generosity has boundaries. Hit $500,000 in total super at the prior 30 June, and you lose the catch-up window. Push past $30,000 without carry-forward room, and the excess tax can reach 47% of the overage for top-bracket earners. For Australians with variable income or interrupted work patterns, the strategy is clear: fill the current year cap first, then reach back through the rolling window for whatever remains from prior years. Those with unused 2020-21 caps should act before the end of 2025-26, as that window closes then.