How to score a mobile phone plan for under $20

Whether you're looking to slash your monthly bill or get more data for your dollar, you've come to the right place to score a cheap mobile phone plan.

Breaking the habit of sticking with your current provider is the easiest way to save, as a simple switch today could cut your mobile costs by hundreds over the next year.

That's why we're rounding up the best mobile phone plans we've spotted this month that you can score for under $20, upwards to $40 from TPG, Felix, Kogan and more.

NOTE: Prices are accurate at the time of publishing.

Writer's choice

TPG is currently offering 50 per cent off its Small and Medium mobile phone plans for the first six months, making them the most competitive under $20 options we've spotted in March.

This introductory deal lets you pocket a total of $75 savings on the 25GB plan or up to $105 savings on the 50GB tier over the half-year period.

And look, if your daily commute mostly involves music, podcasts, and a bit of social media, the 25GB plan will be more than enough to cover those basics. 

However, if you're a data-heavy user who often watches Netflix or uses their mobile hotspot, the 50GB medium plan will be the better option.

Just remember, these rates revert to full price after your first six months, so mark it in your calendar when you'll need to re-evaluate your plan again!

TPG doesn't quite fit your needs? We've got you covered with more options below.

Popular mobile phone plans: $20 and under

Popular mobile phone plans: $30 and under

Popular mobile phone plans: $40 and under

READ MORE: How to save $1448 on your Samsung Galaxy S26 Ultra plan