The short version: there is no single average — there is a range. At 11,000 kWh a year (the CRU typical figure), a fresh new-customer discount costs roughly €1,166–€1,499, a standard rate €1,498–€1,705, and prepay about €1,783, on the rates we verified on 28 August 2026. Your own number depends on two things: your kWh, printed on your bill, and whether you are still inside a discount.
Paying at the top of that range? The fix is one switch — start with cheapest gas in Ireland.
What is the average gas bill in Ireland in 2026?
Any honest answer starts with the yardstick. Suppliers and the CRU price gas at a typical household usage of 11,000 kWh a year, and every tariff sheet must show an Estimated Annual Bill (EAB) calculated at that figure. So “the average gas bill” is really “what 11,000 kWh costs”, and that depends entirely on whose rate you are on:
- On a first-year discount: €1,166 to about €1,499 a year on the deals we verified this week — the spread between the deepest percentage off and the shallowest.
- On a standard rate — where every discount dumps you after month 12: roughly €1,498 to €1,705, and that band only holds until the next round of price moves.
- On prepay: about €1,783, year in, year out — no new-customer discount ever applies, and a prepayment service charge is baked in.
Notice what that means: the gap between the cheapest and dearest way to buy the same 11,000 kWh is about €617 a year. Whether your bill is “above average” is mostly a question of which of those three groups you are standing in — and households that have not switched in over a year are almost always in the second or third. The month-13 mechanics have their own page.
One honesty note before the numbers: matched.ie is not a CRU-accredited price-comparison site. We verify rates on supplier sites and show our workings; if you want a regulated comparator, the CRU publishes the accredited list at cru.ie.
What does the average gas bill include?
An Irish gas EAB is four ingredients — and, importantly, one famous absentee. Every figure on this page includes all four:
| Component | What it is | Worked example: standard variable gas, 11,000 kWh |
|---|---|---|
| Unit rate | The price per kWh — the only ingredient discounts touch, and the reason the range above is so wide. | 12.70c/kWh × 11,000 = €1,397.00 |
| Standing charge | A fixed daily fee you pay even in a heatwave. Unlike electricity, gas standing charges do not split urban/rural. More here. | €170.84/year |
| Carbon tax | About 1.25c/kWh including VAT — the same on every supplier, so switching never changes it. Rises when the €71/tonne rate lands on 14 October 2026. Full guide. | 1.25c × 11,000 = €137.65/year |
| VAT at 9% | Applied to the lot; the reduced rate is extended to 31 December 2030. Already inside the figures on this row’s left. | Included above |
| PSO levy | Not on gas. The PSO is an electricity charge only — if you see one on a “gas” comparison, someone has mixed their fuels. | €0 |
Add the example column and you get €1,397.00 + €170.84 + €137.65 ≈ €1,705 — which is exactly the top of the standard-rate band above (it is Flogas’s standard variable EAB, from the rates we verified on 28 August 2026). The general formula for any tariff is simply: (your kWh × unit rate) + standing charge + (your kWh × 1.25c carbon tax), everything including 9% VAT. What the lines mean on the paper bill itself — meter units to kWh, estimated reads, the GPRN — lives in gas bill explained.
What is the average gas bill with each supplier?
Seven of the nine suppliers we track sell home gas (Pinergy and Community Power are electricity-only). Here is what 11,000 kWh costs with each — year 1 with the new-customer discount, then year 2 once it expires — cheapest year-1 first, verified 28 August 2026:
| Supplier | Plan | Year 1 (EAB) | Year 2 (standard) |
|---|---|---|---|
| SSE Airtricity | 1 Year Home Gas (30% off) | €1,166 | €1,542 |
| Flogas | Gas 28% Discount | €1,314 | €1,705 |
| Yuno Energy | Gas Variable | €1,332 | €1,577 |
| Bord Gáis Energy | Gas Discount (9%) | €1,388 | €1,498 |
| Energia | Standard Gas | €1,394 | €1,518 |
| Electric Ireland | Gas 10% | €1,499 | €1,633 |
| Prepay Power | Prepay Gas (PAYG) | €1,783 | €1,783 |
Two readings of that table matter more than any single row. First, the year-2 column is the real “average” for anyone who signs up and forgets — every bill-pay discount lapses onto a standard rate €110–€392 dearer. Second, the order reshuffles between columns: the supplier with the deepest teaser is not the one with the gentlest standard rate. The full gas-only ranking, with exit fees and the year-2 reshuffle called out, is at cheapest gas in Ireland.
Why is the average not simply my monthly bill × 12?
Here is the part that generates more panicked January phone calls than any price rise. An annual gas figure is not one-twelfth per month, because household gas is heating, and heating is a winter activity. The same house that sips gas for showers and a hob all summer runs a boiler for hours a day from October. Shaped roughly, a heating household’s gas year looks like this — illustrative shares of a year’s gas use, not euro amounts and not measured data:
…versus the shape a heating home actually follows:
On a shape like that, roughly four-fifths of the year’s gas burns between October and March, and January alone can take around a sixth of it — eight or more times a July month, where the bill is little beyond the standing charge. Your own curve depends on your boiler, insulation and habits, but the asymmetry itself is universal in gas-heated homes.
The January-bill panic, retired: a January gas bill several times your July one does not mean the meter is broken, the supplier is at it, or the neighbours are siphoning your gas. It means your heating worked. Before disputing anything, check the read: if there is an E beside it the bill is estimated — submit an actual meter reading and it will be corrected. A winter bill is also the worst possible moment to judge a tariff: judge the annual figure, and smooth the cashflow with a level-pay direct debit if the spikes hurt.
The corollary cuts both ways. A pleasant €40 August bill tells you nothing about your year — multiplying it out would “prove” an annual cost of €480 for a home genuinely burning €1,500. If you moved into a gas home in spring, budget for the shape, not the last bill.
How do I compare my own gas bill to the average?
The average only becomes useful once you put your own numbers beside it properly. Five minutes with one bill:
- Find your annual consumption in kWh. It is printed on the bill (often as “your annual consumption”). This — not any euro amount — is the number to compare with 11,000 kWh. Below roughly 7,000 you are a light user; well above 15,000 you are heavy.
- Compare kWh with kWh, then euro with euro. If your usage is near 11,000 kWh, the EABs on this page map straight onto you. If not, use the formula above with your own kWh — a big house being over the average euro figure on average rates is normal.
- Check which rate you are on. If it has been more than 12 months since you switched, assume you are on a standard rate in the €1,498–€1,705 band and treat the year-1 column as money on the table.
- Only compare annual against annual. A single winter bill belongs beside last winter’s bill, not beside an annual average — and never beside a summer one multiplied up.
- Check the reads are actual, not estimated. A run of E-reads can park a whole winter’s usage on one terrifying catch-up bill. How to fix that here.
What are the two comparison traps?
Trap one: comparing a gas bill to an electricity figure. The two fuels are priced on different planets. A typical gas home burns 11,000 kWh against electricity’s 4,200 kWh — but a gas kWh costs a fraction of an electricity kWh, and each bill carries different extras: electricity has the PSO levy and no carbon tax, gas has carbon tax and no PSO. So “my gas bill is bigger/smaller than my electricity bill” tells you nothing about whether either is a good deal. Each fuel gets judged against its own average — the electricity side lives at average electricity bill in Ireland.
Trap two: treating a dual-fuel EAB as a gas bill. A dual-fuel Estimated Annual Bill bundles a year of both fuels — 4,200 kWh of electricity plus 11,000 kWh of gas — into one number north of €3,000. Put that beside a €1,500 gas bill and the bundle looks like robbery; it is just two bills wearing one coat. The only fair test of a dual-fuel deal is to unbundle the gas rates inside it and price them at your kWh — which is exactly what our dual-fuel ranking does, one supplier at a time.
What should I do if my gas bill is above average?
Work the two levers in order of effort. The rate lever first: if you are on a standard or prepay rate, one switch moves you from the top of the range toward the bottom — on this week’s figures that is worth up to a few hundred euro a year at typical usage, for half an hour of admin. Start at cheapest gas, or answer a few questions on find your energy; the process itself is painless and your supply never cuts (how switching works).
Then the kWh lever. No supplier can discount the carbon tax or your boiler’s appetite — but heating controls, a serviced boiler, and insulation attack the 11,000 kWh itself, which is where an above-average home’s money actually goes. The state’s supports for that live with the SEAI via citizensinformation.ie; and if arrears rather than efficiency are the pressure, MABS is free and suppliers must offer payment plans. For what the network side of your bill funds, the pipes belong to Gas Networks Ireland no matter who sends the bill; the carbon-tax rate itself is set in law and published by Revenue.
Where to next?
- Cheapest gas in Ireland — all seven gas sellers ranked on the year-1 and year-2 bill.
- Gas bill explained — every line on the paper bill, from meter units to the GPRN.
- Carbon tax on energy bills — the 1.25c/kWh nobody can discount, and what changes on 14 October 2026.
- Average electricity bill in Ireland — the other fuel’s yardstick, at 4,200 kWh.
- Year 1 vs year 2 energy prices — why the discount is not the price.
