Your gas bill cost depends on how much gas you use, the daily supply charge, your tariff, meter type and where you live. Heating, hot water and cooking can increase usage, particularly during colder months, while concessions or rebates may reduce the amount for eligible households. Check your bill for the usage rate, supply charge, billing period and any discounts, then compare available plans using the Australian Government’s Energy Made Easy website. If the bill seems unusually high, ask your retailer to check the meter reading and billing details.