Optus coupon codes and discounts: Up to $300 back (June 2026)
You can access Optus cashback offers and discounts across several services, including prepaid and postpaid SIM-only plans, NBN plans or home internet and devices. Here's a rundown of what's up for grabs.
Right now, when you sign up for an eligible prepaid or postpaid SIM, NBN plan, home internet or phone plan through Finder, you'll get a Finder Reward in the form of a Visa gift card worth up to $300.
This is in addition to offers from Optus itself, which we run through further down.
While there aren't any coupon codes available this month, these deals offer the same bang for your buck (if not more).
Optus Finder Rewards and discounts for June 2026
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 $59 28-day expiry plan will cost you just $25 on activation.
You will also receive 85GB on each of the first 3 recharges before the allowance drops down to 45GB ongoing.
When you sign up through Finder, you can score $100 cashback on its 365-day prepaid plan, $75 on its 186-day expiry plan, or $50 on its monthly prepaid offers.
Optus discounts on postpaid SIM plans
Optus is offering a $10 a month discount on its 360GB Promo plan for the first year. You'll pay $69 a month for the first 12 months, then $79 ongoing.
If you don't need that much data, you can still save with a $15 monthly discount on Optus's $60 Promo plan for the first year. The $60 plan drops to $45 a month for the first 12 months, then goes back to $60 a month after.
These plans also include a $10 monthly credit for 12 months to use on subscriptions like Netflix and Amazon Prime via Optus SubHub.
Regardless of what postpaid SIM plan you choose, you'll get a $150 reward when you sign up through Finder.
Optus discounts on phone plans
Optus is running device offers across popular phone brands, including Samsung, Google and Apple.
Get $600 off the Galaxy S26 Ultra when you sign up on a 12-, 24- or 36-month phone repayment plan.
For Google phones, you can save $800 on both the Pixel 10 Pro XL and the Pixel 10 Pro Fold on 12-, 24- or 36-month plans.
Apple's iPhone Air is also discounted by up to $800 when you get a plan for 12, 24 or 36 months. This includes a $500 price drop plus an extra $300 off as part of Optus's EOFY deal.
Plus, you can get a $200 reward when you sign up to an Optus phone repayment plan through Finder.
Optus NBN and home internet discounts
You can save up to $20 a month for your first year on Optus's NBN 100 plans and above. For instance, their NBN 500 plan is dropped to $79 a month for the first 12 months, before returning to its standard $99 rate.
Savvy switchers can get a $250 gift card when signing up for an NBN plan or a $300 gift card for 5G home internet when you sign up through Finder.
UPDATED 2 JUNE 2026: We updated the availability of multiple Finder Reward offers.
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