Hybrid & PHEV VRT Calculator Ireland 2026

Calculator

Pick fuel type (HEV / PHEV / petrol / diesel), enter OMSP, WLTP CO₂ and NOx. The result is the standard Cat A VRT — no hybrid-specific path is available. For the full Cat A / B / C / M / BEV-relief calculator, use the main VRT calculator.

HEV vs MHEV vs PHEV vs BEV — the four fuel types

The Irish VRT system distinguishes between four electrified powertrain types, each taxed differently:

From a VRT perspective there is one tax-relevant divide: BEV vs everything else. The other three all pay the same standard Cat A bands; the differences between them are real-world fuel economy, environmental footprint and BIK band — not VRT.

The PHEV trap — low CO₂ doesn't mean low VRT

PHEVs publish surprisingly low WLTP CO₂ figures — typically 25–55 g/km — because the WLTP test cycle gives them credit for an EV-mode portion. This puts PHEVs in Cat A band 1 (7%) or band 2 (9%), the same very low rates as battery electrics. Buyers see a 7–9% rate next to the 17.5% rate on a petrol equivalent and assume the PHEV is dramatically cheaper on VRT.

The trap is the OMSP. PHEVs are mechanically more complex — large batteries, two propulsion systems, additional cooling, more sophisticated transmissions. They cost more to manufacture and command much higher OMSPs than the same body-style petrol equivalent — typically €5,000–€10,000 more. So 7% × €40,000 PHEV OMSP (€2,800 VRT) versus 17.5% × €30,000 petrol OMSP (€5,250 VRT) does still favour the PHEV — but the gap is much smaller than the band rates alone suggest.

And in some cases the PHEV ends up more expensiveon VRT than the petrol. A €50,000 PHEV at 9% (€4,500) vs a €38,000 petrol at 17.5% (€6,650) — PHEV wins by €2,150. But a €50,000 PHEV at 9% (€4,500) vs a €38,000 petrol at 12% (€4,560) — they're a wash, except the PHEV also adds €12,000 to the upfront purchase price.

Why PHEV relief was withdrawn (and why it's unlikely to return)

The justification for ending PHEV VRT relief on 31 December 2021 was real-world emissions data. Multiple European studies — most prominently the European Commission's Joint Research Centre (JRC) and the NGO Transport & Environment — found that PHEVs in everyday use were producing 2–4× their WLTP type- approval CO₂ figures. The reason: many owners, particularly company-car users on BIK with limited charging incentive, drove their PHEVs primarily on the petrol engine.

The policy logic became:

• BEV relief delivers — the type-approval CO₂ figure (0 g/km tailpipe) is the real-world figure, because there's no engine to fall back on. Relief = emissions outcome.
• PHEV relief did not deliver — type-approval CO₂ averaged ~30 g/km, real-world CO₂ averaged 90–120 g/km. Relief = no proportionate emissions outcome. Subsidy without environmental return.
• HEV relief never existed — full hybrids never benefited from a hybrid-specific path, and their lower headline VRT (where it occurs) comes from genuinely lower CO₂ on WLTP, not from a categorical relief.

Cycle 2 RDE (Real Driving Emissions Phase 2) testing from 2021 has narrowed the gap somewhat for new PHEVs by adding road-test verification of the type-approval cycle. But Revenue and the Department of Finance have shown no public appetite for restoring PHEV-specific relief. Budget 2026 made no changes; the policy direction is BEV-focused, with the existing BEV relief extended to 31 December 2026.

Hybrid vs petrol vs PHEV vs BEV — same OMSP, four outcomes

To make the trap visible, here's the same vehicle class (compact SUV) at the same OMSP (€38,000) under four different powertrains. CO₂ and NOx figures are typical 2026-spec values.

At identical OMSP, the gradient is real — BEV is dramatically cheapest, PHEV next, HEV third, petrol most expensive. But this comparison holds OMSP fixed, and in the real world OMSPs differ:

• The petrol version of this SUV typically retails at €32,000–€35,000
• The HEV version at €36,000–€40,000
• The PHEV version at €42,000–€48,000
• The BEV version at €38,000–€48,000

Re-run the comparison at realistic OMSPs and the PHEV's "low band rate" advantage shrinks substantially. The BEV's lead grows because the band 1 minimum + €5,000 relief floor sets it at €140 regardless of OMSP up to €40k.

Worked examples — six 2026 scenarios

1. New Toyota Corolla 1.8 Hybrid (HEV)

OMSP €33,500, 100 g/km CO₂, 32 mg/km NOx, petrol HEV. Band 6 (12%): €33,500 × 12% = €4,020. NOx (32 × €5) = €160. VRT €4,180.

2. New Hyundai Tucson 1.6 PHEV

OMSP €43,500, 35 g/km CO₂, 40 mg/km NOx, petrol PHEV. Band 1 (7%): €43,500 × 7% = €3,045. NOx (40 × €5) = €200. VRT €3,245. Lower than the HEV despite €10k higher OMSP — band rate dominates here.

3. New Mercedes E300e PHEV

OMSP €70,000, 35 g/km CO₂, 50 mg/km NOx, petrol PHEV. Band 1 (7%): €70,000 × 7% = €4,900. NOx (40 × €5) + (10 × €15) = €350. VRT €5,250. Premium PHEVs lose their advantage as OMSP scales.

4. New BMW 320i (petrol — for comparison)

OMSP €52,500, 145 g/km CO₂, 40 mg/km NOx, petrol. Band 15 (21.5%): €52,500 × 21.5% = €11,288. NOx €200. VRT €11,488. The PHEV equivalent (BMW 330e at €60k OMSP, 35 g/km) pays only €4,200 + NOx — a real ~€7,000 VRT saving where the PHEV still wins decisively.

5. Used 5-year-old VW Passat GTE (PHEV import)

OMSP €19,500 (Irish OMSP after 5 years' depreciation), 40 g/km CO₂, 35 mg/km NOx. Band 1 (7%): €19,500 × 7% = €1,365. NOx (35 × €5) = €175. VRT €1,540. PHEV imports look cheap on VRT but factor in the post-import battery health risk and the SOH degradation that has hit the older PHEV used market.

6. New Toyota RAV4 Hybrid (HEV)

OMSP €43,500, 130 g/km CO₂, 35 mg/km NOx, petrol HEV. Band 12 (17.5%): €43,500 × 17.5% = €7,613. NOx €175. VRT €7,788. The RAV4 Hybrid's higher CO₂ band almost erases its hybrid status from a VRT perspective.

Used PHEV / hybrid imports — the battery health question

VRT is straightforward on used hybrid / PHEV imports — standard Cat A bands, no separate path. The harder question is whether the import makes economic sense at all, given that:

• HEV battery packs (1–2 kWh) typically last the life of the car. Toyota hybrids in particular are known for 200,000+ km on the original pack.
• PHEV battery packs (8–15 kWh) degrade faster than full-size BEV packs because of the higher cycle count per km and aggressive thermal management. A 6-year-old PHEV with 60% State of Health is not unusual; replacement packs are €4,000–€8,000.
• UK PHEV imports often have very low real-world EV-mode usage (a quirk of UK company-car taxation), meaning the petrol engine has done most of the actual work. Engine wear can be high while battery cycles are low — opposite to expectations.

The VRT side is the easy part of a used PHEV import. The battery diligence is the hard part. See our used EV buying guide for State of Health checks, OBD scan tooling and what to look for at viewing.

What's actually different at registration

At NCTS for a hybrid or PHEV, the inspection process is identical to any other Cat A passenger car:

• Same VRT inspection bay (no special hybrid lane)
• Same documents required (CoC, foreign registration, invoice, ID, address proof, customs declaration for UK)
• Same 30-day registration deadline
• Same OMSP appeal route (Form VRT14 within 2 months)
• Same NOx levy applies (€600 petrol cap for HEV / petrol PHEV; €4,850 diesel cap for diesel PHEV)
• Same Cat A 20-band table on WLTP CO₂
• No extra paperwork for hybrid / PHEV status — the CoC carries it as a fuel-type field

The only practical difference is the BIK story for company-car hybrids and PHEVs, which is a separate calculation entirely. See our company car BIK guide for that side. The VRT side is, in 2026, just another standard Cat A registration.

Sources

• Finance Act 2020 — ended PHEV VRT relief from 31 December 2021.
• Revenue VRT Manual — Cat A treatment of HEV / PHEV.
• European Commission JRC reports on real-world PHEV CO₂ vs type-approval (2020, 2022).
• Transport & Environment — "Plug-in hybrid: A bridge to nowhere" (2020) and follow-on studies.
• Real Driving Emissions Regulation 2017 and Cycle 2 amendments.
• citizensinformation.ie — VRT and BIK overview.

Frequently asked questions