The telco introduced it's Red plans with the Roam Like Home feature mid last year, and were priced at $65, $80 and $100.
It will now be offered to all post-paid plan tiers, which start at $30, and though existing customers will be able to opt in from next week, the roaming feature will be automatically added for new customers starting from April 23.
Vodafone is also simplifying it's roaming rates across 200 countries where Vodafone doesn't allow for Roam Like Home.
In these countries, which include Fiji, Vietnam, India and Canada, Vodafone will now charge $1 for a 1 minute call or 1MB of data.
- Check out our guide for the best 4G network in Australia