We've rounded up the top 12 deals for electricity and gas in December 2025 from some of the country's biggest energy retailers and included a list of providers offering referral credit.
HINT: AGL, Energy Locals and Powershop are offering the biggest bill credit in certain states. Origin Energy's throwing in bonus Everyday Rewards Points, and Red Energy's doing something similar with Qantas points.
AGL has a few sign-up perks for new and moving customers, seniors and streaming buffs.
Get up to $150 in bill credit when you switch your home electricity or move online and stick it out with AGL for 90 days.
Up to $150 in bill credit + free Netflix
Get up to $150 in credit when you join AGL and stay connected for 90 days. T&Cs apply.
Get up to $150 in credit when you join AGL and stay connected for 90 days. T&Cs apply.
New customers in NSW, VIC, and QLD can get a $100 bill credit by signing up for Energy Locals' Online Member plan.
If you're in NSW or VIC, there's an extra $50 credit up for grabs on the Gas Saver plan too.
For these to apply, you'll need to stick around for 6 months.
Get up to $150 in energy bill credit
Sign up for an Energy Locals electricity and gas plan to get up to $150 in bill credit when you stay on for 6 months. T&Cs apply.
Sign up for an Energy Locals electricity and gas plan to get up to $150 in bill credit when you stay on for 6 months. T&Cs apply.
Get up to $200 in sign-up credit when you combine selected residential electricity and gas plans with Powershop.
That's a $100 bill credit for electricity, which will be applied to your first bill.
If you're in NSW or VIC you'll get an additional $100 bill credit for gas.
Up to $200 sign-up credit
Up to $200 in sign-up credits when you combine selected residential electricity and gas plans. Available in select areas. T&Cs apply.
Up to $200 in sign-up credits when you combine selected residential electricity and gas plans. Available in select areas. T&Cs apply.
In VIC, new customers can receive a $125 welcome credit on their first electricity bill when they sign up for select ENGIE plans.
Separately, NRMA members in NSW, VIC, QLD, or SA can save 20 cents per litre on fuel at participating Ampol Foodary locations when they sign up for an ENGIE Perks plan.
$125 welcome credit
Sign up for an ENGIE plan to get $125 welcome credit on electricity if you're in VIC. T&Cs apply.
Sign up for an ENGIE plan to get $125 welcome credit on electricity if you're in VIC. T&Cs apply.
Sign up with Alinta Energy to get up to $100 bonus credit on your electricity plan.
This credit will be applied to your first bill.
Up to $100 bonus credit
Sign up with Alinta Energy to receive up to $100 in bonus credit. T&Cs apply.
Sign up with Alinta Energy to receive up to $100 in bonus credit. T&Cs apply.
TAS customers can get $100 in bill credit by signing up to 1st Energy’s 1st Plus plan. This will be split across your first year. That’s $50 after 6 months, and another $50 after 12 months.
RACT members can sign up to the RACT Saver plan and get $150 in bill credit - that’s $75 after 6 months, and another $75 after 12 months.
Up to $150 sign-up credit
Sign up to select 1st Energy plan to receive up to $150 bill credit. New customers only. T&Cs apply.
Sign up to select 1st Energy plan to receive up to $150 bill credit. New customers only. T&Cs apply.
New customers who sign up with Kogan Energy will receive a $100 Kogan.com credit plus a 12-month free Kogan First membership.
Existing Kogan First members will receive a one-off $100 sign-up credit on their first electricity bill.
Free Kogan First membership or $100 credit
Get a $100 Kogan.com credit and a free Kogan First membership when you sign up with Kogan Energy, or a one-off $100 bill credit if you’re already a member. T&Cs apply.
Get a $100 Kogan.com credit and a free Kogan First membership when you sign up with Kogan Energy, or a one-off $100 bill credit if you’re already a member. T&Cs apply.
New and existing customers who switch to the Warm Welcome plan can get up to $100 in welcome credit after signing up.
VIC customers will receive $100 in bill credit - that’s a $50 for electricity and $50 for gas.
Those in NSW, SA and QLD will get a $50 welcome credit on their electricity plan.
Up to $100 in welcome credit
Sign up with Momentum Energy’s Warm Welcome plan to receive up to $100 in bonus credit. T&Cs apply.
Sign up with Momentum Energy’s Warm Welcome plan to receive up to $100 in bonus credit. T&Cs apply.
New customers in NSW, VIC, SA and ACT can get up to $200 in Everyday WISH eGift cards by signing up for Origin Energy’s Go Variable plan - that's $100 for electricity and $100 for gas.
eGift cards will be issued for active plans from 20 December 2025. Offer ends 18 December 2025.
Add your Everyday Rewards number to earn up to 10,000 bonus points when you sign up for electricity and gas with an Origin Everyday Rewards plan.
That's 5,000 points for electricity and 5,000 for gas. Renewing customers get 2,500 points per fuel.
You also get 1 Everyday Rewards point for every dollar you pay on your energy bill.
Up to $200 in eGift cards
Sign up to Origin Energy's Go Variable plan to receive up to $200 in Everyday WISH eGift cards. T&Cs apply.
Sign up to Origin Energy's Go Variable plan to receive up to $200 in Everyday WISH eGift cards. T&Cs apply.
Red Energy is worth checking out if you're a Qantas Frequent Flyer.
Switch to select Qantas Red plans for a chance to win 250,000 Qantas Points. Offer is available until 18 December 2025.
You can earn up to 15,000 bonus Qantas points when you switch to a Qantas Red Saver electricity and gas plan and pay your first bill in full.
That's 10,000 points for electricity and the remaining 5,000 for gas. You'll also earn 2 points per dollar when you pay your electricity and gas bill on time.
Up to 15,000 bonus Qantas points
Sign up to the Qantas Red Saver plan to get 10,000 bonus points for electricity and 5,000 bonus points for gas. You'll also earn 2 points for every $1 spent on your energy bills. T&Cs apply.
Sign up to the Qantas Red Saver plan to get 10,000 bonus points for electricity and 5,000 bonus points for gas. You'll also earn 2 points for every $1 spent on your energy bills. T&Cs apply.
Commonwealth Bank customers can save up to $210 over 12 months with Amber Electric if you sign up with CommBank as a payment method.
Up to $210 discount for CommBank customers
Get up to $210 over 12 months when you sign up with a CommBank payment method. T&Cs apply.
Get up to $210 over 12 months when you sign up with a CommBank payment method. T&Cs apply.
New customers who sign up to the Monthly Smart Saver or Standard Form Contract plan can get a 12-month free OnePass membership.
OnePass members get free delivery on eligible online orders at Kmart, Target, Bunnings Warehouse, Officeworks and Priceline, with no minimum spend.
You’ll also earn 5x Flybuys points for every dollar spent in-store or via Click & Collect at an eligible retailer.
12-month free OnePass membership
Sign up to Kleenheat’s Monthly Smart Saver or Standard Form Contract plan to receive 12 months of free OnePass membership. T&Cs apply.
Sign up to Kleenheat’s Monthly Smart Saver or Standard Form Contract plan to receive 12 months of free OnePass membership. T&Cs apply.
Haven't switched energy plans in over a year?
You could be missing out on a cheaper deal. See how much you could save by comparing now.
Signing up for a new energy plan or know someone who is? Some energy providers offer referral deals which can save both of you some money. If you're moving house then it's worth asking around to try and save.
| Provider | Offer |
|---|---|
| Origin Energy | Existing Origin customers get a $50 bill credit for every mate they refer - and the friend gets $50 off their first bill payment too. |
| Diamond Energy | Existing customers in NSW, VIC, QLD or SA can receive ongoing benefits through the Diamond Energy Thr1ve program. Each new customer you refer will receive a $35 sign up credit. Plus you'll receive a 2% discount on your usage and supply charges for each friend you refer. Refer 5 friends? That's a discount of 10%. You'll continue to receive the discount so long as your referral remains with Diamond and can earn up to 100% total discount. |
| Red Energy | Existing customers in NSW, VIC, QLD, SA or ACT can choose between a $25 gift card and 1,500 Qantas Points for each new customer they refer to Red Energy. |
| Nectr | Existing customers in NSW, VIC, ACT and QLD can receive a $50 bill credit for each new customer they refer. |
| OVO Energy | Existing customers in NSW, QLD, SA and VIC can receive $120 in bill credit (paid in monthly instalments over 12 months) when they successfully refer a friend. Their referral will also receive $120 bill credit. There's no limit to how many friends you can refer. |
| Energy Locals | New customers in NSW, VIC, QLD, SA, ACT or TAS can receive a $50 bill credit when they quote an existing member's account number during sign-up. Once the new customer has signed up successfully, the referrer will also get a $50 credit. |
| Lumo Energy | New customers in VIC or SA can receive a $25 gift card when they quote their friend's Lumo Energy account number on sign-up. Best of all, your friend will get a $25 gift card too. |
| CovaU Energy | Existing customers in NSW, VIC, SA, TAS, ACT and QLD can get $50 EFTPOS gift card for each new successful customer they refer to CovaU Energy. |
| GloBird Energy | Existing GloBird customers can get $50 account credit on the next bill after their friend pays their first bill. The referred friend will also receive the $50 credit on their second invoice. |
| Arcline Energy | New customers in VIC can receive a $50 bill credit when they quote an existing member's account number during sign-up. Once the new customer has signed up successfully, the referrer will also get a $50 credit on their next Arcline bill. |
| Sumo Energy | Existing customers are eligible to receive a $50 credit when they refer a new customer to Sumo who has not had an account with Sumo in the previous 6 months. The new customer must activate and keep an electricity account with Sumo for at least 30 days. The credit will be applied to the referrer's next monthly electricity bill after completion of the 30 days. |
| Amber Electric | Existing Amber customers get a $10 bill credit each month for 12 months, adding up to $120 for every new referral to Amber Electric. Each referral will also get $120 off their bill over 12 months. |
"Anytime I switch energy plans, I look out for energy deals while searching for the cheapest plan. When I switched to AGL, it was one of the cheapest options for both electricity and gas for my postcode and it was offering sign-up credits which would help lower my bills even further. The main thing I've learnt is that a provider may be offering a good deal but it won't save you money overall if its plan prices aren't one of the cheapest around."
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