Can I make international calls on long expiry mobile plans?

There are a handful of providers that offer either unlimited international minutes to selected countries or an allocation of how many minutes you can use on your plan to any country. Make sure to compare features between providers and their plans before signing up if this is an important feature to you.

Are 365-day prepaid plans the same as 12-month SIM only plans?

Yes, they're both the same. Some providers will refer to these as 12-month plans while others will call them 365-day prepaid plans. Keep in mind that some providers do offer 12-month contracted SIM only plans. These are different as you pay for your mobile bill monthly (rather than all upfront like a 365-day prepaid plan) and exit fees usually apply.

What happens if I don't use all my data up within 365 days?

Some providers do offer data banking as a feature on their 365-day plans. This can be unlimited or up to a certain limit. You'll just need to make sure to recharge your plan before it expires in order for the data to be rolled over. If your 365-day prepaid mobile plan doesn't come with any data banking feature, you'll lose your unused data at the end of the expiry period.

Can I get unlimited data on a 365-day prepaid mobile plan?

Unfortunately you can't on a 365-day prepaid plan. Unlimited data mobile plans are generally uncommon anyway and only felix offers a month-to-month truly unlimited data plan though the caveat is 40Mbps download speed caps throughout.

Is there a SIM card with data that doesn't expire?

No, there isn't. All SIM cards with data will eventually expire. The longest period to keep your plan running would be a 365-day prepaid mobile plan where you'll only need to recharge once a year.

Best 365-day prepaid mobile plans

Compare to find the best long expiry mobile plan

You'll find mobile plans with expiry periods between 90 and 365 days in the comparison table below.

10 of 46 results

Finder Score	Data allowance	Ongoing price	Special offer	Description
9.1 OnePass Mobile 365 Day Plan 200GB PrepaidNo lock-in contract SAVE $51 $200 $149 for first recharge	9.1	Data Allowance 200GB Optus 4G network	$200 per 365 day recharge per 365 day recharge Ongoing price $200 per 365 days expiry per 365 days expiry	SAVE $51 $200 $149 for first recharge	$149 for first recharge, then $200/recharge. Ends 10 Feb 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
Thinking about a new mobile plan? Take our easy quiz to find the best mobile plan for you. Get started
9.5 Boost $300 SIM PrepaidNo lock-in contract SAVE $50 + BONUS DATA $300 $250 for first recharge 240GB 290GB for first recharge	9.5	Data Allowance 240GB Telstra 4G/5G network	$300 per 12 months per 12 months Ongoing price $300 per 12 months per 12 months	SAVE $50 + BONUS DATA $300 $250 for first recharge 240GB 290GB for first recharge	290GB for $250 on activation, then 240GB for $300/recharge. Ends 9 Feb 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
9.3 Optus Flex Plus $180 186 days PrepaidNo lock-in contract SAVE $50 + BONUS DATA $180 $130 for first recharge 90GB 140GB for first 3 recharges	9.3	Data Allowance 90GB Optus 4G/5G network	$180 per 186 day recharge per 186 day recharge Ongoing price $180 per 186 days expiry per 186 days expiry	SAVE $50 + BONUS DATA $180 $130 for first recharge 90GB 140GB for first 3 recharges	$130 for first recharge, then $180, ends 25 Feb 2026. 140GB for first 3 recharges, then 90GB. New services only. T&Cs apply.	ENDS SOON! $100 VISA CARD REWARD 1 Click here 2 Buy an Optus Prepaid long expiry plan 3 Get card from Finder Ends by. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
9.5 Kogan Extra Large 365 Days Flex PrepaidNo lock-in contract No special offer	9.5	Data Allowance 500GB Vodafone 4G network	$300 per 365 day recharge per 365 day recharge Ongoing price $300 per 365 days expiry per 365 days expiry	No special offer	Kogan FIRST members only - $205 for first recharge, then $300/recharge. Ends 30 Apr 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.3 Optus Flex Plus $350 365 days PrepaidNo lock-in contract BONUS DATA 220GB 300GB for first 3 recharges	8.3	Data Allowance 220GB Optus 4G/5G network	$350 per 365 day recharge per 365 day recharge Ongoing price $350 per 365 days expiry per 365 days expiry	BONUS DATA 220GB 300GB for first 3 recharges	300GB for first 3 recharges, then 220GB. T&Cs apply.	ENDS SOON! $150 VISA CARD REWARD 1 Click here 2 Buy an Optus Prepaid long expiry plan 3 Get card from Finder Ends by. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.1 amaysim 150GB Long Expiry Plan PrepaidNo lock-in contract No special offer	8.1	Data Allowance 150GB Optus 4G/5G network	$150 per 182 day recharge per 182 day recharge Ongoing price $150 per 182 days expiry per 182 days expiry	No special offer	Go to site View details Compare product selectionCompare	loading
9.5 Kogan Extra Large 365 Days PrepaidNo lock-in contract No special offer	9.5	Data Allowance 500GB Vodafone 4G network	$300 per 365 day recharge per 365 day recharge Ongoing price $300 per 365 days expiry per 365 days expiry	No special offer	Go to site View details Compare product selectionCompare	loading
8.7 Kogan Small 365 Days Flex PrepaidNo lock-in contract SAVE $30.90 $179.90 $149 for first recharge	8.7	Data Allowance 140GB Vodafone 4G network	$179.90 per 365 day recharge per 365 day recharge Ongoing price $179.90 per 365 days expiry per 365 days expiry	SAVE $30.90 $179.90 $149 for first recharge	$149 for first recharge, then $179.90/recharge. Ends 8 Feb 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.3 amaysim 200GB Long Expiry Plan PrepaidNo lock-in contract No special offer	8.3	Data Allowance 200GB Optus 4G network	$270 per 365 day recharge per 365 day recharge Ongoing price $270 per 365 days expiry per 365 days expiry	No special offer	Go to site View details Compare product selectionCompare	loading
8.7 Boost $365 SIM PrepaidNo lock-in contract No special offer	8.7	Data Allowance 365GB Telstra 4G/5G network	$365 per 12 months per 12 months Ongoing price $365 per 12 months per 12 months	No special offer	Go to site View details Compare product selectionCompare	loading

Showing 10 of 15 results

Finder Score for mobile plans

We've scored over 300 mobile plans on everything from cost to data allowance and important features.

Our experts give each plan a score out of 10 - totally fair, with no commercial strings attached.

Read the full methodology

Frequently asked questions

Yes, they're both the same. Some providers will refer to these as 12-month plans while others will call them 365-day prepaid plans.
Keep in mind that some providers do offer 12-month contracted SIM only plans. These are different as you pay for your mobile bill monthly (rather than all upfront like a 365-day prepaid plan) and exit fees usually apply.
Some providers do offer data banking as a feature on their 365-day plans. This can be unlimited or up to a certain limit. You'll just need to make sure to recharge your plan before it expires in order for the data to be rolled over.
If your 365-day prepaid mobile plan doesn't come with any data banking feature, you'll lose your unused data at the end of the expiry period.

Why compare mobile phone plans with Finder?

Genuine phone addicts. Unlimited scrolling and streaming, we got you. We track all offers daily so you can stay online all the time.

Cause we all hate caps. Our goal is to bring you all the good stuff, and surface any hidden fees. So you can get back to the fun stuff, like gaming.

Tried and tested. We give these plans a run for their money and listen to the feedback of the millions of Aussies who have used our plans comparison.

Thank you for your feedback!

More resources on Finder

Ask a question

Click here to cancel reply.

Display name

Your email (will not be published)

Your question

Finder only provides general advice and factual information, so consider your own circumstances, or seek advice before you decide to act on our content. By submitting a question, you're accepting our Terms Of Service and Finder Group Privacy & Cookies Policy.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

33 Responses

sateeshDecember 20, 2025

What are the strings attached to the Visa gift card by purchasing Optus 365 days prepaid mobile sim from Finder website?

Finder

AngusDecember 22, 2025Finder

You can use the Visa gift card anywhere Visa is accepted. To get the $150 card, you need to sign up for the 365 day plan and must not have been an active Optus customer in the last 30 days. The full terms and conditions are explained in more detail here.

johnNovember 17, 2025

how do you get a phone number with aldi 2$starter pack

Finder

MariamNovember 18, 2025Finder

Hi John, once you buy and activate the SIM, you’ll have the option to either port an existing number or sign up to a new number. Choose the latter. Hope this helps!

kevinNovember 7, 2025

Why is 12 month plan so dear

Finder

MariamNovember 10, 2025Finder

Hi Kevin, it is a slightly bigger chunk of your money upfront but they can work out cheaper than some month-to-month plans. If you prefer paying a smaller amount each month, you can compare monthly plans and filter out options based on your budget: https://www.finder.com.au/mobile-plans. Hope this helps!

MichelOctober 2, 2025

I am using only 65GB for 365 days! Which plan or company should I use?
I will prefer Telstra as the provider from the company chosen. Like Boost or Aldi.
Thank you

Finder

MariamOctober 3, 2025Finder

Hi Michel, unfortunately, you’ll be hard pressed to find a 365-day plan on the Telstra network for low data use. Your options include ALDI Mobile, Everyday Mobile and Boost Mobile. If you’re happy to expand to perhaps the Optus network, you can find some cheaper offers here: https://www.finder.com.au/mobile-plans/prepaid-plans/best-long-expiry-prepaid-plans. Hope this helps!

lyndsaySeptember 22, 2025

Will the cover still be usable if you have had to give the loaned phone back before the 365 day is up

Finder

MariamOctober 3, 2025Finder

Hi Lyndsay, as long as you have the physical SIM with you then yes, you can use the plan on another device. Hope this helps!

More guides on Finder

Apple iPhone 17 plans and deals from Optus
Check out everything Optus is offering to get you ready for Apple’s latest flagship handsets.
Best prepaid mobile plans in Australia
Each month, we pick the best prepaid plans for 9 different categories to help you find the right mobile plan.
Best mobile plans for January 2026
Our experts have crunched the numbers to help you find the best mobile phone plan in Australia.
Compare unlimited mobile data plans in Australia
Wave bill shock goodbye. Discounted prices start from $12 for an unlimited data mobile data plan.
Optus MVNOs – Best mobile plans on the Optus network
Looking for a great phone plan from a provider that uses the Optus network? There's something available no matter what you're looking for.
Best mobile plans on the Telstra network
If you want Telstra's coverage without the price point, there are great ways to save with a smaller provider on the Telstra network.
Best mobile plans for students
From budget-conscious to international students, these mobile plans offer something for every type of student.
Best mobile phone plans for seniors
It's easy to avoid overpaying for your mobile plan, even without a seniors discount. We've rounded up our top 6 picks and shared tips on how to save.
Best mobile plans for kids and teens
Getting a phone for kids or teens is an important decision to make, so here are the things to consider when choosing a mobile plan for them.
Top 10 mobile phone providers in Australia
Check out which mobile phone providers Finder users are loving this month and the top plans they're choosing!

Best 365-day prepaid mobile plans

Compare long expiry plans side by side to find the best one for you.