Looking for an Optus coupon code? Get up to $350 back
You can access Optus cashback offers and discounts across several services, including mobile and NBN. Here's a rundown of what's up for grabs.
Right now, when you sign up for an eligible Optus NBN plan, prepaid SIM or phone plan through Finder, you'll get cashback of up to $350.
This is in addition to offers from Optus itself.
Optus coupon codes and discounts for January 2026
Optus NBN discounts
You can save up to $20 a month for the first 12 months on the majority of Optus's NBN plans.
This offer is available until 25 February 2026.
For example, Optus's NBN fast plans (NBN 100 and NBN 500) will cost you $79 a month for the first 12 months. After that, the price will jump to $99 a month.
Besides the $240 in savings over the year, you also get $350 when you sign up through Finder.
Optus discounts on prepaid SIMs
Optus is running bonus data offers on most of its month-to-month and long-expiry prepaid plans.
There are also a couple of discounts. For example, its $35 28-day expiry plan will cost you just $13 on activation.
You will also receive 60GB on each of the first 3 recharges before the allowance drops down to 20GB ongoing.
When you sign up through Finder, you can score $150 cashback on its 365-day prepaid plan, $100 on the 186-day expiry plan, or $50 on its monthly prepaid offers.
Optus discounts on phone plans
New year, new phone? Optus is running device offers across popular brands, including Samsung and Apple.
For instance, there are bonus TV and watch offers across the iPhone 17 lineup, Galaxy S25 Ultra and Galaxy Z Fold 7.
Plus, you can get a $200 reward when you sign up to an Optus phone repayment plan through Finder.
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