Are you paying too much for your energy contract? Compare in 15 minutes

Many households keep the same energy contract for years because changing feels complicated. Yet checking whether your contract is still reasonable is free everywhere in Belgium and needs no technical knowledge. Set aside a quarter of an hour and take your latest bill.

One free official tool per region

Energy supply is regulated by region, and each regional regulator runs its own free comparison tool. Use the one for the region where you live:

• Flanders: the V-test of the Vlaamse Nutsregulator, at www.vtest.be. The regulator calls it a free and independent comparison of the electricity and gas contracts on offer in Flanders, including group purchases (Vlaamse Nutsregulator). Quickest option: the V-check code, web link or QR code printed on your bills. Scan it to see at once whether your contract is rather cheap or rather expensive, based on an average consumption.
• Wallonia: CompaCWaPE of the CWaPE, at www.compacwape.be. It compares the electricity and gas offers of suppliers in Wallonia. You enter your postal code, consumption and meter type, and the results include energy, network costs, taxes and VAT (CWaPE).
• Brussels: BruSim of BRUGEL, at brugel.brusim.be. It compares the offers of suppliers in the Brussels-Capital Region and splits them into fixed-price and variable-price offers (BRUGEL).

What you need from your bill

To compare properly, you need how much energy you use in a year, in kWh. You find it on your last yearly settlement bill. In Flanders you can also find it in Mijn Fluvius or link the V-test to it directly (Vlaamse Nutsregulator).

Also note:

• the name of your current contract and its start date, so you can find it in the results;
• whether your price is fixed or variable: a variable price follows the energy markets;
• your EAN codes, 18 digits that identify your electricity and gas connection. BRUGEL advises including them when you ask a supplier for an offer (BRUGEL).

Your bill in plain words

The price of electricity and gas has three parts (Vlaamse Nutsregulator):

• Energy cost: the part that goes to your supplier. Each supplier sets it, so this is the part that can differ a lot between suppliers.
• Network charges: what you pay to bring the energy to your home. They depend on your network operator and region, not on your supplier. In Flanders, the capacity tariff is part of this.
• Taxes and levies, which your supplier collects and passes on to the government.

Switching is free and is not cut off

The federal regulator CREG puts it plainly: the total price of changing supplier is zero euro, and your electricity or gas cannot be cut off because you switch (CREG). You may also have separate suppliers for electricity and gas.

You can leave at any time, even during a fixed-term contract, but there is a notice period. The regulators state it differently:

• Wallonia and Brussels: one month, without any termination fee (CWaPE, BRUGEL). If you do not respect it, the supplier may charge a termination fee under your contract.
• Flanders: the Flemish regulator mentions three weeks, in its step-by-step plan last updated in June 2026 (Vlaamse Nutsregulator).

In practice, the steps are similar in each region:

1. You sign a new contract. A new contract with your current supplier is also possible.
2. If you go to a new supplier, that supplier arranges the switch and the end of your old contract. You do not need to cancel anything yourself.
3. With a classic meter, your network operator asks for your meter reading. Always give it, otherwise it is estimated. A digital meter is read automatically.
4. Your old supplier sends a final bill; the new one starts billing.

Signed a contract online, by phone or at your door? Federal rules give you 14 calendar days after the supplier's written confirmation to change your mind (FPS Economy).

Check this yourself

• Find your yearly consumption on your settlement bill.
• Open the official tool for your region and look for your own contract in the list.
• Open the tariff sheet of any contract you consider, and keep a copy.

Before you decide

The Flemish regulator flags a few points that are worth checking anywhere. If you have been a customer for less than a year, some suppliers charge the fixed fee for a full year, and some discounts only apply after a full year. If you have solar panels but no digital meter yet, it advises changing contract as close as possible to your yearly meter reading (Vlaamse Nutsregulator).

A comparison tool gives an estimate, not a promise. Your real cost depends on your actual use.

Want an independent look at your bills, meters and equipment together? Tell us about your home.