In this review, we explain in clear language where Mega scores strongly and what points of interest you should take into account before choosing this gas Mega Online Flex.
| 1-2 people | €72 /mo |
| 3-4 people | €204 /mo |
| 5+ people | €302 /mo |
| Type of tariff plan | Indexed price |
| Customer service | Online only |
| Billing options | Digital only |
| Payment method | Bank transfer or direct debit |
| Fixed fee | €45 /yr |
| Gas usage fee | c€7.87 /kWh after 12 months c€8.82 |
| Contract duration | Indefinite |
| Notice period | 1 month |
| Available in | Flanders & Wallonia |
| Target audience | Consumer |
| Tariff card | October 2026 |
If you order today, you will enjoy these promotions and discounts. Just make sure you adhere to the terms and conditions of the promotion. So be sure to pay your bills on time to avoid discussions afterwards.
Since 1 October 2026, the new Energy Purchasing Power Act has come into force. We may still mention welcome discounts such as cashbacks, discounts on fixed fees and gift vouchers, but we may no longer include them in our price simulations and average prices. Rest assured, you can still benefit from these discounts, as long as you meet the stated conditions. We explain the specific conditions for each promotion so that you, as a customer, always remain well informed.
Evert E. — Energy expert
c€0.95 /kWh discount on kWh price for 12 months
Additional discount of €22.00
The discount is applied pro rata to each advance invoice.
Don't wait until the last minute!
Mega may end a promotion earlier than expected, or ask for additional information. You will receive the promotion that is available on the moment that your order has been completely finalized.
Evert E. — Energy expert
Mega Online Flex is a variable rate. We always make the best possible estimate of the annual price of each contract. We calculate these according to the expected energy prices for the next 12 months. However, prices may change due to changing market conditions or government decisions. The price calculation is based on october 2026 tariffs.
Evert E. — Energy expert
To make all these tariffs and prices a bit more tangible, you will find here an estimate of advance payment amount and final bill for each different consumption profile.
Gas: 7.560 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45,00 |
|
Verbruikskost gas
|
€ 666,79 |
| Subtotaal | € 711,79 |
| Taksen en Heffingen | |
| Subtotaal | € 82,62 |
| Netkosten bij Fluvius Antwerpen | |
| Subtotaal | € 164,14 |
| Kortingen | |
|
Bijkomende korting
|
€ -22,00 |
|
Korting op kWh-prijs
|
€ -72,12 |
| Subtotaal | € -94,12 |
| Jaartotaal | € 864,44 /jr |
| Gem. per maand | € 72,04 /mnd |
Gas: 23.260 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45,00 |
|
Verbruikskost gas
|
€ 2.051,53 |
| Subtotaal | € 2.096,53 |
| Taksen en Heffingen | |
| Subtotaal | € 264,35 |
| Netkosten bij Fluvius Antwerpen | |
| Subtotaal | € 332,20 |
| Kortingen | |
|
Bijkomende korting
|
€ -22,00 |
|
Korting op kWh-prijs
|
€ -221,90 |
| Subtotaal | € -243,90 |
| Jaartotaal | € 2.449,18 /jr |
| Gem. per maand | € 204,10 /mnd |
Gas: 34.890 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45,00 |
|
Verbruikskost gas
|
€ 3.077,30 |
| Subtotaal | € 3.122,30 |
| Taksen en Heffingen | |
| Subtotaal | € 401,93 |
| Netkosten bij Fluvius Antwerpen | |
| Subtotaal | € 456,68 |
| Kortingen | |
|
Bijkomende korting
|
€ -22,00 |
|
Korting op kWh-prijs
|
€ -332,85 |
| Subtotaal | € -354,85 |
| Jaartotaal | € 3.626,06 /jr |
| Gem. per maand | € 302,17 /mnd |
Gas: 7.560 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45 |
|
Gasprijs
|
€ 666,79 |
| Subtotaal | € 711,79 |
| Taksen en Heffingen | |
| Subtotaal | € 83,19 |
| Netkosten bij ORES Hainaut | |
| Subtotaal | € 320,21 |
| Kortingen | |
|
Bijkomende korting
|
€ -22 |
|
Korting op kWh-prijs
|
€ -72,12 |
| Subtotaal | € -94,12 |
| Jaartotaal | € 1.021,07 |
| Gem. per maand | € 85,09 |
Gas: 23.260 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45 |
|
Gasprijs
|
€ 2.051,53 |
| Subtotaal | € 2.096,53 |
| Taksen en Heffingen | |
| Subtotaal | € 266,09 |
| Netkosten bij ORES Hainaut | |
| Subtotaal | € 692,52 |
| Kortingen | |
|
Bijkomende korting
|
€ -22 |
|
Korting op kWh-prijs
|
€ -221,9 |
| Subtotaal | € -243,90 |
| Jaartotaal | € 2.811,24 |
| Gem. per maand | € 234,27 |
Gas: 34.890 kWh
| Energiekost | |
|---|---|
|
Vaste vergoeding
|
€ 45 |
|
Gasprijs
|
€ 3.077,3 |
| Subtotaal | € 3.122,30 |
| Taksen en Heffingen | |
| Subtotaal | € 404,54 |
| Netkosten bij ORES Hainaut | |
| Subtotaal | € 968,31 |
| Kortingen | |
|
Bijkomende korting
|
€ -22 |
|
Korting op kWh-prijs
|
€ -332,85 |
| Subtotaal | € -354,85 |
| Jaartotaal | € 4.140,3 |
| Gem. per maand | € 345,03 |
VAT included. Monthly, annual and one-off charges are settled on a monthly basis.
How has the price of Mega Online Flex evolved over the past period? Has the price increased, or has the kwh price decreased? And how does Mega Online Flex compare with other tariffs in the market?
Keep in mind that Mega regularly gives discounts to new customers. As a result, their kWh price is often even more interesting than "standard price". The kWh prices in the chart are the standard prices without discounts.
Evert E. — Energy expert
VAT included
Mega is a Belgian provider of energy and telecom services. The company supplies electricity, natural gas and dual fuel plans for households and self-employed customers, and it also offers mobile postpaid subscriptions. Mega is mainly known as a price-focused provider that brings several everyday services together under one brand. This makes Mega suitable for people who want to manage their gas, electricity and mobile service more easily. Mega mainly appeals to customers who prefer a digital approach and a practical way to handle home energy and mobile use.
Forewarned is forearmed. Mega Online Flex serves as the benchmark product in this comparison. In which areas does Mega Online Flex outperform other gas only prices, and in which not so much?
You can also combine Mega Online Flex with other services from Mega. This is often cheaper than purchasing each service separately.
An energy rate card summarises the most important information about an energy contract, such as the type of contract (fixed, variable or dynamic), the price per kWh, the fixed fee, any indexation formulas, duration and termination conditions. You will also find information on discounts, green electricity, injection tariffs for solar panels, network tariffs and an estimate of the annual cost. Here you will find an overview of all current and past rate cards of Mega Online Flex.
Looking for older Mega rate cards, from 2022 or earlier? Contact us, our internal price list archive goes way back to 2012 (!). We will do our best to get you the right rate card.
Evert E. — Energy expert
Below you will find answers to the most frequently asked questions about Mega Online Flex. Is your question not listed? Feel free to contact us.
Yes, Mega Online Flex is a indexed tariff, i.e. the consumption price per kWh fluctuates every few month(s). The kWh price can therefore rise and fall during the term of your contract. However, the consumption price always follows the same market indexes using a fixed price formula. You can find all the price information and indexation formula in the tariff sheets.
When you switch suppliers, your new supplier Mega takes care of everything. They will contact both your local grid operator and your previous energy supplier. Your switch usually follows 30 days after your request, but you can also choose a switch date yourself up to 6 months in the future. If you have requested a new connection or move, Mega also takes care of everything, and then everything can be set up even faster.
Consumers are always entitled to a free cancellation period of 2 weeks after application. For this, you need to contact your new supplier yourself, or contact your current supplier and ask them to stop the switch. Business users are not entitled to 2 weeks' notice.
No, consumers in Belgium are still allowed to switch suppliers for free, and without giving any reason. You are not bound to a fixed contract duration. However, sometimes early termination means you lose your welcome discounts. We therefore advise you to remain a customer for at least one year before requesting an energy switch.
When the original contract term of 1 or 2 years is about to expire, Mega will notify you. In this, they will offer you a new contract proposal with the same or similar tariff plan. This is the moment you should definitely come and compare your energy contract again on DareToCompare.be.
Mega Online Flex is only available in Flanders & Wallonia, not in the other regions.
Every promotion has an end date. That’s why we keep a historical record of expired discounts and promotions on Mega Online Flex. This gives you a better understanding of how prices, discounts and promotions have changed over time.
c€1.22 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€1.10 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€1.10 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€1.10 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€0.95 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€0.95 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€0.95 /kWh discount on kWh price for 12 months + Additional discount of €37.10
c€0.95 /kWh discount on kWh price for 12 months
c€0.95 /kWh discount on kWh price for 12 months
c€0.21 /kWh discount on kWh price for 12 months
c€0.21 /kWh discount on kWh price for 12 months
c€0.21 /kWh discount on kWh price for 12 months
c€0.21 /kWh discount on kWh price for 12 months
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €10.60
Discount of €5.30
Discount of €5.30
Discount of €5.30
Discount of €5.30
We go back up to 2 years
We have limited this overview to promotions from the past two years. Are you looking for information on older promotions? Contact us, and we will do our best to dive deep into our archives of the past 10 years. This information is purely for comparison with more current offers and as a historical reference overview. No rights can be derived from this.
Evert E. — Energy expert
