How to Tell From Your Electricity Bill Whether You Should Switch

The question "should I switch?" sounds like it needs a recommendation. It doesn't. It needs a number.

Your electricity bill contains everything needed to calculate whether switching would save you money, approximately how much, and whether that saving justifies the ten minutes it takes to switch. This guide walks you through extracting that number from your bill.

First: The Cases Where Switching Almost Certainly Makes Sense

You don't always need to run the full analysis. Some situations make the answer obvious.

You've never switched. If you connected to an energy retailer when you moved in, whether as an owner or renter, and never actively compared and switched, you're almost certainly on a standing offer or an unreviewed market offer that was competitive at connection time but hasn't been looked at since. The market has moved. You probably haven't. Switch.

You've been on the same plan for more than three years. Energy retail pricing changes continuously. A plan that was competitive in 2021 or 2022 is unlikely to be competitive in 2026. If you can't remember when you last actively chose your plan, it's been too long.

Your plan has a conditional discount you don't reliably receive. If you're on a "pay on time and get 18% off usage" plan but you've been charged the full rate in any of the last four quarters because of a missed payment or billing dispute, your effective rate is significantly higher than the plan's headline rate. Plans without conditional discounts at the same or lower effective rate exist in most markets.

Your current retailer has sent you a rate change notification. If your rates went up recently and you received a notification about it (even if you didn't read it), the market has likely not moved in lockstep. A comparison now is likely to show a saving.

The Bill Analysis: Four Steps

If your situation isn't immediately obvious, your bill gives you the answer in four steps.

Step 1: Find Your Current Usage Rate

Look for the charges section of your bill. Find the figure labeled "usage charge," "energy charge," or "electricity usage rate." It's expressed as cents per kilowatt-hour (c/kWh).

Write this number down. It's the key figure.

Step 2: Know What the Reference Price Is, and What It Isn't

The AER (Australian Energy Regulator) sets a Default Market Offer (DMO) reference price for each distributor network zone, capping what a standing offer can charge. Victoria's Essential Services Commission sets its own equivalent, the Victorian Default Offer.

Here's the part that trips almost everyone up: a reference price is not a cents-per-kWh rate, so there is nothing there to compare your rate against. It's an annual dollar amount for a stated benchmark level of usage, and both the amount and the benchmark usage change from zone to zone. For a residential customer on a flat rate in 2026–27:

Source: Default Market Offer 2026–27 information kit, AER.

Which means the only way to use the benchmark is to work out your own annual cost at your own usage first. That's Step 3.

Step 3: Calculate Your Annual Cost at Current Rates

Take your billing period kWh usage and divide by the number of billing period days to get a daily average. Multiply that by 365 to get an annual usage estimate. Apply your usage rate and add your daily supply charge × 365.

Example:

• Billing period: 750 kWh over 90 days = 8.33 kWh/day × 365 = 3,040 kWh/year estimated
• Usage cost: 3,040 × $0.30 (30 c/kWh) = $912
• Supply charge: $1.00/day × 365 = $365
• Estimated annual cost: $1,277

(The figures above are an illustrative worked example, not a typical household. Substitute your own.)

Now you have a number you can put next to the benchmark: take your zone's row from the table in Step 2, scale it to your own annual usage, and see where you land. This is a simplified estimate, though. Seasonal variation means direct extrapolation understates costs for summer-heavy or winter-heavy users.

Step 4: Upload Your Bill and Get the Real Comparison

The manual calculation above gives you a rough baseline. The proper comparison requires running your actual bill data against every available plan in your area using live pricing.

That's what we do when you upload your bill. We extract the usage and rate data automatically (no manual arithmetic required) and show you:

• Your estimated annual cost on your current plan
• The best available alternative plans in your area
• The annual saving each alternative represents

If the saving on the best alternative is greater than $0, switching saves money. If it's greater than $100, it's worth doing immediately. If it's greater than $300, it's a significant enough sum that not switching is a real cost to you.

The Cases Where Switching May Not Make Sense

You're already on a highly competitive plan. Some households have done the work. They compared last year, they're on a genuine market leader, their annual cost sits well below the benchmark for their zone. For these households, the comparison will confirm the situation and they can move on. We tell them clearly.

Your contract has an exit fee. Most Australian market offer plans have no exit fee, because consumer protection law restricts exit fees on standard market offers. However, some fixed-term contracts with specific guarantees (rate locks, etc.) may have conditions. Check your plan terms. If you're in the exit-fee window and the saving doesn't exceed the fee, wait.

You're on a niche plan with features that matter to you. Some households are on plans with specific features: green energy plans, community electricity schemes, specific time-of-use structures that suit their lifestyle. If those features are important to you, the comparison should account for them. The cheapest plan isn't always the right plan if you actively value something the cheaper plan doesn't offer.

The saving is very small. A $20 annual saving probably isn't worth ten minutes of switching time and the minor admin of updating direct debits. The threshold for switching is personal, but most households find that $50+ annually is worth acting on.

How Quickly Can You Switch

For most Australian households:

• Switching initiation: 10 minutes online with the new retailer
• Confirmation: 1–2 business days
• Plan change effective: Next billing cycle with new retailer (typically 2–4 weeks)
• Supply interruption: None. The physical connection is unchanged.
• Exit fee: None for standard market offer plans

You can switch in the time it takes to make a cup of tea.

Upload Your Bill

Stop wondering whether you should switch. Upload your bill and find out. The comparison is free. The saving figure is specific to your household. The decision takes a minute.

If you should switch, you'll know exactly how much you'd save and which plan to move to. If you shouldn't, you'll have confirmation that you're already on a competitive plan, which is worth knowing.

Related reading. Am I overpaying for electricity covers the four figures behind the switch decision, and the loyalty penalty on Australian electricity bills explains why a plan you never changed drifts above the market. The same question on the other household bill is answered in are you overpaying on your broadband bill.

Fix Your Bill uses OCR to extract bill data and CDR data to compare plans. Results reflect currently available offers in your area. No exit fees apply to standard market offer plans in most Australian states, so verify with your current retailer for any fixed-term contract conditions.