Looking for the cheapest SIM-only plans in Australia? Here are some top budget-friendly options fresh as of August 2025—great value across varying data needs:
Best Budget SIM-Only Deals
Under ~$20/month
SpinTel (Optus network): 25 GB for $14/month (first 6 months discounted), then $22/month. A stellar choice for light data users.
Moose Mobile: 40 GB for $12.40/month (first 6 months), then $26.80/month. Includes 5G and data banking. A great value if you’re okay with the post-promo increase.
Around $12–$18 (Intro Offers)
TPG:
25 GB plan for $12.50/month (first 6 months), then $25.
50 GB plan for $17.50/month (first 6 months), then $35; includes 5G and international call perks.
Solid Value Between $20–$30/month
Southern Phone (Optus network): 40 GB at $19/month (for 6 months, then $29). Includes unlimited national talk/text and $50 international credit.
Dodo (Optus): 30 GB for $23/month; includes bonus data initially.
On Telstra’s Reliable Network (via MVNOs)
Belong: 25 GB for $30/month; often includes features like data banking.
Tangerine Telecom: 12 GB for $23/month, or higher-data plans up to 150 GB for $58/month; still cost-effective for broad coverage and 5G access.
Also Read : DITO SIM Registration
What Users Are Saying
On Reddit, savvy Aussies highlight:
“Amaysim’s $10 As You Go… I pay 10 bucks a year for this amaysim plan just to keep it ticking over… Been doing it for 3 years now.”
— One user relies on this to retain their number cheaply.
“Amaysim has a $12 a month plan with unlimited calls and texts and 6 GB data.”
— Useful for light users needing basic data and freedom.
Summary Table
| Data Needs | Recommended Plan | Price Highlights |
|---|---|---|
| Light Use (~25 GB) | SpinTel | $14/month for first 6 months |
| Moderate (~40 GB) | Moose Mobile / Southern Phone | $12.40/mo (promo) / $19–29/mo |
| Medium (~30–50 GB) | TPG / Dodo | $12.50–17.50 (promo), then higher rate |
| Wide Coverage | Belong / Tangerine | $30–58/mo on Telstra’s robust network |
| Minimal Use | Amaysim PAYG or $12/month plan | ~$10/year or $12/month for 6 GB |
Tips for Choosing
Check whether you prefer prepaid or postpaid flexibility.
Consider intro discounts vs ongoing prices.
Choose a network (Optus, Vodafone, Telstra) that works best where you live.
Look for extra features like data banking, international calls, and 5G access.
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