Importing a Porsche 911 into Ireland almost always means a large VRT bill, because the tax is based on the car's Irish market value, not the price you paid abroad. Vehicle Registration Tax (VRT) is the charge you pay when you register an imported car with Revenue, and for a passenger car it is a percentage of the OMSP (Open Market Selling Price), with a separate NOx levy on top. The exact figure is only confirmed when you present the car at an NCTS centre.
How VRT on a Porsche 911 is calculated
VRT on a Porsche 911 is a percentage of the car's OMSP set by your CO2 emissions band, with a NOx charge added on top. Three moving parts decide the bill: the OMSP, the CO2 band that sets the rate, and the NOx levy.
OMSP: the value Revenue actually taxes
The OMSP is the price Revenue believes your Porsche 911 would sell for on the open Irish market, including all taxes. You are taxed on Irish market value, so a cheap deal abroad does not mean a cheap VRT bill. Because used 911s are scarce here, their OMSP is hard to predict, and condition, mileage and specification all move it.
The CO2 band and the NOx charge
Your CO2 emissions decide the rate, and a NOx levy is added separately. For a category A car, the rate climbs from about 7% to 41% of OMSP (Revenue/SIMI, 2026), as shown below.
| Component | How it is charged |
|---|---|
| VRT rate (category A) | ~7% to 41% of OMSP by CO2; minimum €140 |
| NOx — first 0–40 mg/km | €5 per mg/km |
| NOx — 41–80 mg/km | €15 per mg/km |
| NOx — above 80 mg/km | €25 per mg/km |
| NOx cap (petrol) | €600 (€4,850 for diesel) |
Source: Revenue.ie / SIMI, 2026.
Why most Porsche 911s land in the top VRT band
Most petrol Porsche 911s land in Ireland's top VRT band because their CO2 emissions exceed the highest threshold in Revenue's scale, pushing the rate to around 41% of OMSP. The flat-six petrol engine, naturally aspirated or turbocharged, sits well above the top cut-off, so the rate maxes out (Carzone/CompleteCar, 2025).
This holds across the range, with only modest differences between a Carrera, Turbo or GT3 — they all sit near the ceiling. The bigger variable is the OMSP:
- Older 996 and 997 cars have a lower OMSP, so the top rate on a smaller value means a smaller bill.
- Newer 991 and 992 cars carry a much higher OMSP, so the same rate produces a far larger figure.
Estimating the bill before you buy
You can get a realistic VRT estimate for a Porsche 911 in minutes with a VRT calculator, which looks up the OMSP and applies the right band. Treat any online figure as an estimate only — Revenue's ROS calculator gives an estimate, and the binding amount is set at inspection (Revenue/NCTS). To keep the bill defensible:
- Confirm the car's CO2 figure is documented; if data is missing at registration, VRT can be charged at the highest applicable rate (NCTS).
- Compare OMSP across years, as specification and condition move the value.
- Budget for the NOx levy on top of the percentage, not instead of it.
Frequently asked questions about VRT on a Porsche 911
A few specific situations come up again and again beyond the core calculation.
Is VRT lower on a classic Porsche 911 over 30 years old?
Often yes, but not through a special exemption. A car over 30 years old may be treated as a vintage/classic vehicle if Revenue is satisfied of its age (vrt.ie). The saving comes mainly from a lower OMSP — the car is still assessed, so confirm the position with Revenue.
How long do I have to register an imported 911 at the NCTS?
You must book an NCTS appointment and register within the legal window after the car enters the State, where the NCTS collects VRT for Revenue (Revenue/NCTS). Don't drive the car unregistered beyond that period.
Is the Porsche 911 a good investment given the VRT?
It can be, because well-kept 911s hold strong residual values that help offset the upfront VRT. But the tax is a real sunk cost, so factor it into your total budget rather than assuming future resale will cover it.
Published 11 June 2026 by the VRT Calculator Ireland editorial team — VRT and vehicle-import specialists drawing on data published by the Revenue Commissioners. Verified against Revenue.ie published rules.