Cheap mobile plans

We all have different ideas of what 'cheap' is but for under $20 a month, you can get up to 40GB of data which we think is a pretty solid deal.

We’re reader-supported and may be paid when you visit links to partner sites. We don’t compare all products in the market, but we’re working on it!

Compare cheap mobile plans for under $20 here

While $20 might not seem like much, many providers offer great deals on data if you're a new customer. You can take a lot at all the budget-friendly plan options in our database below.

Name Product Features Data Price
  • $28/mth for the first 12 months for new customers, then $38/mth. T&Cs apply. Ends 02.08.2021, 12pm AEST
  • Unlimited standard national calls & texts
100GB
Data
$28
per month
100GB
Data
  • First month free with FLX009 promo code, then $35/mth. New customers only. T&Cs apply. Ends 13 August 2021
  • Unlimited standard national calls & texts
Unlimited data
Speeds limited to 20Mbps
$35
per month
Unlimited data
Speeds limited to 20Mbps
  • $10 for the 1st renewal. 30GB + 20GB bonus data for the first 3 renewals. T&Cs apply. Ends 31 July 2021
  • Unlimited standard national calls & texts
50GB
Data
$30
per 28 days expiry
50GB
Data
$30
per 28 days expiry
Go to site
View details
  • $9.80/mth for the first 12 months, then $15.80/mth. T&Cs apply.
  • Unlimited standard national calls & texts
6GB
Data
$9.80
per month
6GB
Data
$9.80
per month
Go to site
View details
  • Unlimited standard national calls & texts
12GB
Data
$20
per month
12GB
Data
  • Unlimited standard national calls & texts
40GB
Data
$30
per 28 days expiry
40GB
Data
Available after 1/3/21. After 3rd recharge, $30 recharge gives you 10GB standard data. T&Cs apply.
$30
per 28 days expiry
Go to site
View details
Finder Award
  • Get 17GB bonus data on first 3 recharges. Ends 27 September 2021
  • Unlimited standard national calls & texts
37GB
Data
$30
per 28 days expiry
37GB
Data
$30
per 28 days expiry
Go to site
View details
  • Unlimited standard national calls & texts
12GB
Data
$20
per month
12GB
Data
  • 50GB for $18/mth for the first 12 months for new customers, then 20GB for $28/mth. T&Cs apply. Ends 02.08.2021, 12pm AEST
  • Unlimited standard national calls & texts
50GB
Data
$18
per month
50GB
Data
  • Get 30GB bonus data per month. T&Cs apply. Ends 29 July 2021
  • Unlimited standard national calls & texts
40GB
Full speed data
Slowed to 2Mbps after full speed data used up
$40
per month
40GB
Full speed data
Slowed to 2Mbps after full speed data used up
  • Lockdown sale: $20/200GB for the 1st renewal, then $50/80GB per renewal. T&Cs apply. Ends 31 July 2021
  • Unlimited standard national calls & texts
80GB
Data
$50
per 28 days expiry
80GB
Data
$50
per 28 days expiry
Go to site
View details
  • $10/mth for the first 6 months, then $19.99/mth. T&Cs apply.
  • Unlimited standard national calls & texts
8GB
Data
$10
per month
8GB
Data
loading

Compare up to 4 providers

How to choose a cheap mobile plan

Picking a cheap mobile plan is finding a balance between what you absolutely need and what you can go without. Here are the top things to consider when you're browsing through cheap mobile plans.

  • Data. Data's the biggest contributor to cost for any mobile plan, so keeping it low can save you heaps. Just remember that if you're routinely going to break your limit, a cheap plan will end up being significantly more expensive and less worthwhile.
  • Consider MVNOs. Purchasing a plan with a big carrier like Telstra or Optus brings some brand security and neat features, but they usually won't be the cheapest choice. Instead, consider going with an MVNO that uses their networks for a more affordable option.
  • Extras. Cheap plans tend to pare down on the bonus features you get like free streaming or other goodies. These extras can be nice, but only if you're going to take advantage of them. Leave them out and save.
  • Downgrade your contract. Even if you're locked into a long-term phone contract, you might be able to save. Most providers will let you switch between a specific set of plans without breaking your contract, allowing you to downgrade to a cheaper one.
  • Watch billing periods. Some prepaid plans come with 28-day recharge periods, while others offer the full month. 28-day expiry periods will end up costing you at least an extra recharge fee per year.
  • Talk minutes. The cheapest mobile plans (usually under $10) can limit how many minutes of calls you can make, even within Australia. If chatting is important to you, steer clear.

Promoted
Pay $28 for 100GB of data per month. Plan reverts to $38 for 100GB per month after 12 months. T&Cs apply.

Are prepaid or postpaid plans better if I want a cheaper deal?

While neither type of plan is inherently cheaper, you'll always know what you're paying with a prepaid plan since your service gets cut off when you hit your limit. Here's a quick rundown of how they compare.

FeaturePrepaidPostpaid
Payment madeAt the beginning of the monthAt the end of the month
Plan valueModerateUsually better in terms of data per dollar
Excess data chargesNeverCan be quite excessive
Extra featuresRarelyOften
Promotional dealsSometimesSometimes

What other options are there for cheap mobile plans?

Some of the cheapest possible plans are expressly designed for people who rarely use their phones or who just don't use much data at all. Many providers have long-expiry plans where you purchase a certain amount of credit and then are charged for each call you make, text you send or bit of data that you use.

See our guide to browse through the best-value long-expiry mobile plans on offer.


Latest mobile plans headlines

Image: Shutterstock

More guides on Finder

    Latest mobile plan deals on Finder

    Ask an Expert

    You are about to post a question on finder.com.au:

    • Do not enter personal information (eg. surname, phone number, bank details) as your question will be made public
    • finder.com.au is a financial comparison and information service, not a bank or product provider
    • We cannot provide you with personal advice or recommendations
    • Your answer might already be waiting – check previous questions below to see if yours has already been asked

    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 Use, Disclaimer & Privacy Policy and Privacy & Cookies Policy.
    Go to site