How To Read a Gas Bill in MJ, Supply Charges and Blocks

Quick answer: how to read gas bill Australia

Learning **how to read gas bill Australia** charges starts with three lines: billing period, gas usage in megajoules and daily supply charge. Then check whether the meter read was actual or estimated, whether tariff blocks apply, and whether concessions or overdue amounts have changed the total.

What to check on the front page

Most gas bills show the account summary first. Check the customer name, supply address, account number, amount due and due date. Also check whether the bill includes a previous balance, payment plan amount or credit.

If the property has recently changed tenant or owner, confirm the billing period starts when you became responsible for the account.

MJ: the gas usage unit

Gas usage is usually measured in megajoules, or MJ. Energy Made Easy explains that electricity is commonly charged in cents per kilowatt hour, while gas is charged in cents per megajoule.

Your bill should show total MJ used for the billing period. Some bills also show the meter readings used to calculate that amount. If your usage is unusually high, compare the current period with the same season last year, because gas heating and hot water can vary heavily by weather.

Daily supply charge

The daily supply charge is the fixed charge for supplying gas to your property. Energy Made Easy says this may also be called a service charge or fixed charge.

This charge applies even if your gas usage is low. It becomes especially important when gas cooking is the only gas appliance left in the home. In that situation, the fixed supply charge may outweigh the actual usage charge.

Usage charges and tariff blocks

The usage charge is the variable charge for the gas you use. Some gas plans use blocks. That means one rate applies to the first part of usage and another rate applies after a threshold.

Blocks can apply daily, monthly or quarterly, depending on the retailer and plan. When comparing gas plans, do not compare only the first block rate. A household using gas heating may move into later blocks during winter.

Actual vs estimated meter reads

The Australian Energy Regulator says energy bills should show the meter readings used to calculate usage and whether a bill is based on an estimate. If the estimate is wrong, a later actual read can create a credit or catch-up amount.

Estimated reads can happen when the meter cannot be accessed. If this keeps happening, ask the retailer what can be done. If you can safely provide a self-read, ask whether the retailer accepts it.

Concessions, rebates and fees

Check whether concessions or rebates have been applied. Missing concessions can make a correct usage bill look wrong.

Also check for:

• paper bill fees;
• card payment fees;
• late payment fees;
• disconnection or reconnection charges;
• account credits;
• hardship or payment-plan adjustments.

How to compare gas plans using a bill

Use the bill to collect:

• postcode;
• billing period;
• total MJ usage;
• supply charge;
• usage rates and blocks;
• concession status;
• whether the home uses gas heating, hot water or cooking.

Then compare gas plans at `/gas` and estimate usage with `/calculators/gas-cost`.

Common mistakes

The biggest mistake is looking only at the amount due. The total can include old debt, missed concessions or an estimated read.

Another mistake is comparing gas plans by usage rate only. A lower usage rate with a higher daily supply charge may not suit a low-use household.

Internal next steps

Compare gas plans at `/gas`, estimate usage with `/calculators/gas-cost`, read `/guides/keep-gas-for-cooking-only`, and check replacement options at `/guides/gas-hot-water-replacement`.

Sources

• Energy Made Easy: Understanding gas and electricity charges, https://www.energymadeeasy.gov.au/article/understanding-gas-and-electricity-charges
• AER: Understanding your energy bill, https://www.aer.gov.au/consumers/understanding-energy/understanding-your-energy-bill
• NSW Climate and Energy Action: What's in your energy bill, https://www.energy.nsw.gov.au/households/bills/your-energy-bill

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