How we calculate total min. cost: Your min. cost is the minimum total amount you will be required to pay, when you sign up to a SIM plan or a SIM plan with a device payment plan.

• When you sign up to a month to month SIM plan without a device payment plan, your min. cost is one month of your SIM plan fee.
• When you sign up to a month to month SIM plan (which includes a plan fee discount) without a device payment plan, your min. cost is one month of your discounted SIM plan fee.
• When you sign up to a month to month SIM plan with a device payment plan, your min. cost is the cost of your device in full plus one month of your SIM plan fee.
• When you sign up to a month to month SIM plan (which includes a plan fee discount) with a device payment plan, your min. cost is the cost of your device in full plus one month of your discounted SIM plan fee.
• When you sign up to a month to month SIM plan with a device payment plan (which includes a device discount), your min. cost is the cost of your device in full (less one month of your device credit amount) plus one month of your SIM plan fee.
• When you sign up to a month to month SIM plan (which includes a plan fee discount) with a device payment plan (which includes a device discount), your min. cost is the cost of your device in full (less one month of your device credit amount) plus one month of your discounted SIM plan fee.
• When you sign up to a month to month SIM plan with an outright purchase, your min cost is one month of your SIM plan fee.

$10 SubHub credit on $79 Optus Plus Promo Plan: Offer ends 6 July 2025 (unless withdrawn earlier). Available to new and existing Consumer and Business customers signing up to an $79 Optus Plus Promo Plan/$79 Business Promo Plan. Customer must have an active SubHub account with paid subscription costs greater than $0/mth by 30 September 2025 to receive 12 months SubHub credit up to $10/mth maximum, depending on total of customers’ paid subscription costs (any difference between the total costs and $10 is forfeited). Credit will commence with first charge of paid subscription prior to 30 September 2025, and continue for 12 consecutive billing periods. Credit forfeited if there are no SubHub paid subscriptions in a particular month during the 12-month period from commencement. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan) after the offer end date. Limited to 1 SubHub credit per eligible plan.  

$79 Optus Plus Promo Plan: Offer available until withdrawn to new and existing Consumer and Business customers (excludes Optus Business Fund & Fleet) signing up to a $79 Optus Plus Promo Plan. Plan fee is $69/month for the first 12 months and then increases from month 13 to $79/mth or as otherwise notified by Optus. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan) after the offer end date. Limited to 6 services per account. Not available with other SIM plan offers, unless specified.

Second Service Offer: Multi-service discount offer is available to new and existing Consumer and Business customers who have an eligible mobile, Fixed or Wireless Broadband plan ('Primary Service') and who sign up to one or more new selected Optus Mobile plans ('Additional Services'). The customer will receive a 25% discount off the plan fees for the Additional Services. Where the customer takes up the Primary Service and Additional Service in the same transaction and both services are eligible as Primary Services and Additional Services the discount will be applied to the service with the lowest plan fees. All services must be on the same account or, in the case of a Fixed Primary Service, under the same name and same address. Discount will be removed if customer rate plan changes the Additional Service to an ineligible service, cancels either service or moves either service to a separate account. Discount not available with another plan discount offer. Maximum of 5 discounts per account for Consumer customers. This offer is available in selected channels only.

Changes to Plans (month to month): We may make changes to your month-to-month mobile plan, including to the price or inclusions. This could include moving you to a new plan, which may cost more. We’ll give at least 30 days’ notice of any increase to plan access fees, any data inclusion decreases or any plan moves. If you don’t like the change, you can choose a new plan (once per payment cycle) or cancel.

Optus Choice Plus/Promo Plus Plans (month-to-month): You can change to another eligible plan once per payment cycle or cancel at any time. If you change your plan, any related device payment plan will remain in place and the payments will remain the same. You may lose existing add-ons if you change to a plan that is not eligible for these and you will not receive a pro rata refund. If your plan is cancelled, there are no cancellation fees, but you will not receive a pro rata refund for the reminder of the payment cycle, unless otherwise provided in our standard agreement and subject to your consumer law rights. Any related device payment plan will be cancelled, and you’ll have to pay out any remaining payments owing as a one-off payment with any device credits or discounts forfeited. You are responsible for all charges incurred on your account by any linked Optus Kids Plans, including device charges. You will be automatically charged via card once per month for recurring charges and any add-ons. You must maintain your card payment details or your plan will be cancelled.

Device Payment Plans (OptusPay): You can buy an eligible device on a device payment plan and pay for it over a selected term by monthly instalments (also referred to as OptusPay). You will need to remain on an eligible Optus Plan for the term of your device payment plan. If you cancel your eligible plan or move to an ineligible plan, your related device payment plan will also be cancelled. If your device payment plan is cancelled, you’ll need to pay out any remaining device payments in full. Any applicable device credits or discounts will be forfeited. If you have a related Optus Kids Plan and the primary service is cancelled (by you or Optus) then all device payment plans related to the services will be cancelled and you will need to pay out the full remaining cost of all of the devices with any applicable device credits or discounts forfeited. This is subject to your consumer law rights. Limit of one device payment plan per eligible device and per Optus plan. You will be automatically charged via card once per month for device payments. You must maintain your card payment details or your device payment plan will be cancelled.

$20 SubHub credit on Large Optus Choice Plus plan: Available until withdrawn to new and existing Consumer and Business customers signing up to a Large Optus Choice Plus/Optus Choice/Business Choice/Business Choice Plus plan. Customer must have an active SubHub account with paid subscription costs greater than $0/mth to receive ongoing SubHub credit up to $20/mth maximum, depending on total of customers’ paid subscription costs (any difference between the total costs and $20 is forfeited). Credit will commence with first charge of paid subscription and continue each month. Credit forfeited if there are no paid subscriptions via SubHub in a particular month. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan). Limited to 1 SubHub credit per eligible plan.

Standard International Calls and Text plan inclusion: Medium and Large Optus Choice Plus/Promo Plus plan inclusions for standard international calls and text can be used to the following selected destinations: Brazil, Brunei, Cambodia, Canada, Mainland China, Columbia, Denmark, France, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Laos, Lebanon, Malaysia, Malta, Mexico, New Zealand, Norway, Poland, Romania, Singapore, South Korea, Sweden, Taiwan, Thailand, United Kingdom, USA and Vietnam. Destinations are subject to change. Calls and texts to other destinations are not included.

International Talk and Text add-ons: Available on selected mobile plans to select destinations. You may automatically be charged via card on activation of the add-on, if no payment is made you will still have access to the add-on and the amount will be added to your next monthly invoice. Usage alerts are sent at 50%/85%/100% of your talk and text inclusions. Add-on expires once inclusions are used or at end of payment cycle (whichever is first). Add-on can only be used in Australia.

Optus Daily Roaming: Optus Daily Roaming add-on is automatically activated and is available on Choice Plus/Promo Plus mobile plans in select Zone 1 destinations. You will be automatically charged via card upon first usage in an eligible destination. If your payment fails you will need to check your payment details are correct, and all roaming usage will be restricted. Usage alerts are sent at 50%/85%/100% of your data inclusions. Add-on includes unlimited standard national talk and text in a Zone 1 destination or to Australia (standard national talk is not available with MBB plans) and 5GB data.  Add-on expires once inclusions are used or once the add-on 24 hour duration has ended (whichever is first). If you continue to roam in eligible destinations, we’ll automatically add a further add-on to your service, and you will be charged for the further add-on. Unused data expires. Eligible destinations are subject to change, see current list at Optus International Roaming.  Fair Go Policy applies.

No Excess Data Charges: If shared data allowance is exceeded, all shared data services on your account will be slowed to a maximum speed of 1.5Mbps (suitable for general internet browsing and music streaming, however some activities such as video streaming may see increased buffering and loading times). Usage while slowed is unmetered. Applies to data usage in Australia only.

Data Add-ons: Available on selected mobile plans. Each add-on can be added once per 24 hrs, per service. You may automatically be charged via card on activation of the add-on, if no payment is made you will still have access to the add-on and the amount will be added to your next monthly invoice. The inclusion of your Data Add-on is added to your shared data allowance on your account. Data is counted in KB increments and includes uploads and downloads. Usage alerts are sent at 50%/85%/100% of your shared data. Add-on expires if data used or at end of payment cycle (whichever is first). Data can only be used in Australia.

Usage alerts: Usage alerts are typically real-time but delays of up to 48 hours may be experienced. You will receive alerts in Australia and while roaming overseas via SMS. However, you can change your preferred method of receiving usage alerts and service notifications anytime by visiting My Account. To learn more about usage alerts, click here.

Unlimited Data Day: Available to approved consumers on selected mobile plans. For use on mobile phone devices in Australia only. Available for 24 hours from activation for eligible service only, no data sharing. Fair Go policy applies. Not for commercial use. Limit 1 Add-on per service at a time. You may automatically be charged via card on activation of the add-on if no payment is made you will still have access to the add-on and the amount will be added to your next monthly invoice.

Coverage: Coverage availability will vary depending on your device and location. Check coverage at optus.com.au/coverage.

Optus Sport: Compatible device required. Personal viewing in Australia only. Content and features may change. Streaming quality dependent on your device, service provider and internet connection (including bandwidth). Optus Sport may be available to purchase through other channels and additional T&Cs may apply. Fair Go Policy applies. For full T&Cs visit sport.optus.com.au/terms. Find out more at sport.optus.com.au/signup.