Verify and calculate your energy label: how to check your home
Want to know which energy label your home has? There are roughly three routes. You can verify an existing label for free in EP-online, calculate an estimate yourself based on construction year and home type, or have an official label drawn up — the only one that is valid when selling, renting, or for your mortgage. This article explains the difference, shows how to find your label in a minute, and what an official label costs (from € 220).
What is the difference between verifying and calculating your energy label?
These two are often used interchangeably, but they mean different things:
- 🔎 Verify — find a label that already exists in the official EP-online register. This is free and takes a minute.
- 🧮 Calculate — make an estimate yourself, for example with an online tool based on construction year and home type. Useful as a rough guide, but it is not a valid label.
- ✅ Have it officially inspected — an adviser inspects your home, calculates the label under the NTA 8800 standard, and registers it in EP-online. Only this counts when selling, renting, and for your mortgage.
In short: verifying checks whether a label already exists, calculating gives an estimate, and official makes it legally valid. Below we go through each one.
How do you verify the energy label of your home?
Verifying an existing label is free and possible without an account. The official register is called EP-online and is managed by the Netherlands Enterprise Agency (RVO):
- 1️⃣ Go to ep-online.nl (the official database of issued energy labels).
- 2️⃣ Enter your postcode and house number.
- 3️⃣ You will see whether there is a valid label, which label class (from A++++ to G), and until which date it is valid.
Is your address listed with a valid label? Great — then you are set for now. Just watch the expiry date: an energy label is valid for 10 years, and an expired label no longer counts. For the details, read our blog how long is an energy label valid →
What energy label does my house have if there is no label yet?
Is your address not in EP-online, or has the label expired? Then there is (still) no valid label. Based on the construction year and home type you can make a rough estimate — a 1970s home without retrofitted insulation usually scores low, a well-insulated new-build high. But that remains an estimate.
The real label class depends on details only an inspection reveals: how well the walls, roof, and floor are insulated, what glazing is fitted, which heating and ventilation you have, and whether there are solar panels. Two identical houses on the same street can therefore have a different label.
Can you calculate your energy label yourself?
You can calculate an estimate online, and that gives a fine first impression. But such a self-calculated or "provisional" label is not legally valid: you cannot sell or rent a home with it and the notary will not accept it. An official label is always determined under the statutory method NTA 8800, based on a home inspection, and registered in EP-online.
Want to know what an official label costs for your home type? See our complete price overview for 2026 →
When do you need an official registered energy label?
A verified or self-calculated estimate is fine for orientation, but in these cases you must have a valid, registered label:
- 🏠 When selling — the label must be present at the transfer at the notary at the latest.
- 🔑 When renting — you state the label letter in the advertisement and hand the label to the new tenant.
- 🏗️ On completion of new construction — a new home is delivered with a label.
Do this without a valid label and the Human Environment and Transport Inspectorate (ILT) can impose a fine: up to € 515 for private individuals and up to € 1,030 for businesses or landlords. An official label costs from € 220 — far less than the fine. Want to know the rules? Read energy label required when selling and renting →
A good label is not just an obligation but also a gain: it counts towards a buyer's borrowing capacity. How that works is explained in energy label and mortgage →
Verifying your label: handy for estate agents and landlords
Work as an estate agent or landlord? Then verify a home's energy label in EP-online early in the process, before you put the property on the market. That way you avoid surprises just before a viewing or the transfer. If you see no valid label, or the expiry date has passed, we quickly arrange a new, official label in Woerden, the Groene Hart, and across the Randstad — usually within a few working days.
Frequently asked questions
How do I verify my home's energy label?
You verify the energy label for free in the public EP-online register (ep-online.nl). Enter your postcode and house number and you will see whether a valid label is registered for your address, which label class it has, and until when it is valid. No account is needed.
What is the difference between verifying and calculating an energy label?
Verifying means finding an existing, registered label in EP-online. Calculating means estimating the label yourself, for example with an online tool based on construction year and home type. Such a calculation is only an indication and is not legally valid; when selling or renting you need an official, registered label.
Can I calculate my energy label myself online?
You can get an estimate online, but that is not a valid energy label. An official label is calculated under the NTA 8800 standard based on an inspection of your home and registered in EP-online. Only that label is valid when selling, renting, or for your mortgage.
What energy label does my house have if one has never been issued?
Then nothing appears in EP-online. Based on construction year and home type you can make a rough estimate, but the real label class depends on insulation, installations, and any solar panels. To record it officially, a home inspection and registration are required.
What does an official energy label cost and how long does it take?
An official energy label at Hollands Duurzaam costs from € 220, including inspection, calculation, and registration in EP-online. The inspection takes about 60 to 90 minutes and the label is then valid for 10 years. It is usually ready within a few working days.
Is a verified energy label always still valid?
Not automatically. An energy label is valid for 10 years from the registration date in EP-online. When you verify your label, check the expiry date: if it has passed, you need a new label when selling or renting.
Request an energy label?
No valid label found, or want it in black and white? At Hollands Duurzaam you arrange an official energy label from € 220 — BRL 9500-MWA-W certified, calculated under NTA 8800, and registered in EP-online, so valid again for ten years. Much cheaper than a fine and usually ready within a few working days. We work in Woerden, the Groene Hart, and across the Randstad.