Cheapest SIM Only Plans Australia | Best Budget SIM-Only Deals

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 NeedsRecommended PlanPrice 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 CoverageBelong / Tangerine$30–58/mo on Telstra’s robust network
Minimal UseAmaysim 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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