Supercharge for tax savings

Before you make a contribution, make sure your total concessional (before-tax) contributions won’t exceed $30,000 in the 2025/26 financial year.

Learn more about contribution caps.

There are several things to think about before making a contribution:

• In order to accept your contribution, we need your Tax File Number (TFN). To provide your TFN, or check that we’ve got it, log into your account and head to the ‘Personal Details’ section.
• If you've gone over the concessional (pre-tax) contribution cap of $30,000 and can't use previous years under the 'carry forward rule' you may not be able to claim a tax-deduction.
• The current non-concessional (after-tax) contribution cap is $120,000 each financial year (this cap is $0 if your total super balance was $1,900,000 or over at the end of the 2025/2026 financial year).
• If you’re under 75 years of age and eligible, you may be able to contribute up to $360,000 under the 'bring forward rule'.
• As a Mercer Super member, you have access to general financial advice about your Mercer Super account at no extra cost. You can register to speak with a Mercer financial adviser by filling out the callback form. Due to the time of year, it may take longer than normal for you to speak with a financial adviser. We recommend booking in early. Our digital advice is available 24/7 with no wait time.

When you first make a personal contribution to your super, it’s considered an after-tax (also known as a ‘non-concessional’) contribution and it’s not subject to tax. When you submit a Notice of Intent form to us, we convert your after-tax contribution, to a pre-tax (also known as a ‘concessional’) contribution, and apply a tax rate of 15% to it.

Following this conversion from post-tax to pre-tax, you’re then able to claim the contribution as a tax deduction.

You may be able to claim a tax deduction for personal contributions you’ve made in the 2025/26 FY if you have not contributed over the concessional contribution cap of $30,000 for that financial year and meet the eligibility rules. 

To claim a tax deduction, you’ll need to complete a Notice of Intent form. This form should be returned to us no later than the day you lodge your 2025/26 financial year tax return, or by 30 June 2027 – whichever comes first.

If your total super balance is below $500,000 at the start of the financial year, you may be eligible to a higher concessional contribution cap by using unused concessional cap amounts from the previous 5 years under the 'carry forward rule'. This may allow you to claim a deduction on a personal contribution in the current financial year without putting you over the cap. Refer to the ATO website for further details. 

If you made after-tax contributions in the 2024/25 financial year these may be eligible for a tax deduction, if:

• you don’t breach the concessional contribution cap of $30,000 for the financial year,** and
• you have not already filed your 2024/25 financial year tax return.

If you meet this criteria, you’ll need to complete a Notice of Intent form. This form must be returned to us no later than 30 June 2026. If the form is received after 30 June 2026, we’re legally unable to process it.

Any personal contributions you’ve made prior to the 2024/25 financial year will no longer be eligible for a tax deduction.

**If your total super balance is below $500,000 at the start of the financial year, you may be eligible to a higher concessional contribution cap by using unused concessional cap amounts from the previous 5 years under the 'carry forward rule'. This may allow you to claim a deduction on a personal contribution in the current financial year without putting you over the cap. Refer to the ATO website for further details.

After you complete the form, save it as a PDF. Then send us the form through the ‘Contact us’ page on Member Online.

Or you can email the form directly to us at MST@Mercer.com.

It usually takes us 3-4 business days to receive and process your form. We’ll let you know that it’s done and give you the go ahead to claim the tax deduction in your tax return.

No, we don’t need to receive this form before 30 June 2026. But you’ll need to send us the form and wait to receive our confirmation (usually within 3-4 business days) before you lodge your 2025/26 tax return.

You must earn under $62,488 in the 2025/26 financial year, but there are additional criteria you’ll need to meet. Check the ATO website for details.

No, you don’t need to let us know. When you lodge your tax return, the ATO will automatically work out if you’re eligible for a super co-contribution. If you’re eligible, the amount you’ll receive will be based on your income during the 2025/26 fiancial year and how much you contributed to your super. The ATO will then pay this amount into your super account.

As each financial institution is different, we’re unable to provide detailed instructions on how to use BPAY.  

For further information, please contact your financial institution directly.

To accept your contribution, we need your Tax File Number (TFN). To provide your TFN, or check that we’ve got it, log into your account and head to the ‘Personal Details’ section.

For help with logging into Member Online or activating your account, head to our Member Online support page.