Will Longfills Dominate the Market After the Two Thousand Twenty Six Vape Tax
Will longfills
dominate after the
2026 vape tax?
An honest analysis of whether longfills will keep their UK market lead once Vaping Products Duty adds £2.20 per 10ml to every e-liquid from October 2026. Probably yes but for different reasons than most vapers expect.
Probably yes. Longfills are not immune to the Vaping Products Duty since concentrate plus nic shots both fall inside the £2.20 per 10ml rate. However longfills still deliver the lowest cost per millilitre of finished e-liquid across every mainstream format once the dust settles. They preserve strength plus VG/PG flexibility which becomes more valuable when bottles cost more. The real threat to longfill dominance is prefilled pods for light users, not shortfills.
Three numbers
that drive the answer
Duty rate, start date plus grace period. These three numbers define everything about the 2026 vape market.
Duty per 10ml
Flat rate across every e-liquid including nicotine-free. Plus 20 percent VAT on top.
2026 start date
Vaping Products Duty goes live. All new stock must carry a Vaping Duty Stamp from this date.
Grace period
Pre-duty stock can be sold without a stamp until 1 April 2027 when it becomes a criminal offence.
Longfills are not magic. They still pay the duty. They still remain the value leader.
The Vaping Products Duty going live on 1 October 2026 is the most significant commercial change to UK vaping since the Tobacco and Related Products Regulations took effect in 2017. HMRC has settled on a flat rate of £2.20 per 10ml of vaping liquid, applied regardless of nicotine content, with 20 percent VAT on top. That second part matters. The effective duty impact on a retail shelf is closer to £2.64 per 10ml once VAT is added.
A lot of the early commentary assumed longfills might dodge the duty because the concentrate is nicotine-free. That assumption is wrong. The VPD definition covers any liquid intended to be vapourised not just nicotine-containing juice. So a 60ml Nixer longfill with 30ml of concentrate inside attracts duty on the concentrate volume (30ml x 22p = £6.60) plus duty on the three 10ml shots (3 x £2.20 = £6.60). Total duty on a 60ml finished longfill: £13.20 plus VAT. The concentrate is not exempt.
So why do we still expect longfills to dominate after October 2026? Because the case for longfills has always been relative to alternatives, not absolute pricing. Longfills produce more finished e-liquid per pound than 10ml bottles. That remains true after duty. A 60ml finished longfill will sit at roughly £28 to £32 on the shelf post-duty. Six equivalent 10ml bottles will sit at roughly £36 to £40. The gap narrows in absolute terms but the percentage saving stays comparable to today.
Why shortfills may lose ground
Shortfills are the biggest losers in the new duty structure. A 100ml shortfill plus two nic shots attracts roughly £26.40 in duty alone, pushing a £12 bottle to over £40. That is a 147 percent price increase on the largest shortfill format. Many current shortfill buyers will look for alternatives. Some will switch to longfills because the format already teaches you how to mix. Some will switch to prefilled pods because the 2ml pod format carries only 44p of duty per pod. Some will switch back to 10ml bottles. This reshuffle is the single biggest reason longfills should gain category share even while absolute volumes across the market shrink.
Longfills face their own risks though. Heavy concentrate users who previously relied on cheap 50ml shortfills may balk at seeing longfills climb to £30. Casual social vapers may find a £15 prefilled pod kit more convenient than mixing bottles. The format will not grow forever. Our expectation is that longfills retain their premium-value position among regular refillable-kit users plus grow slightly at the expense of shortfills but lose some light users to pods.
- Winners. Nic salt longfills, prefilled pods, bulk-purchased pre-October stock.
- Losers. Shortfills (biggest volume loss), disposable equivalents, anything above 50ml single-bottle.
- Stable. Longfills hold market share because relative value stays intact.
- Uncertain. Black market growth could hurt all legitimate formats if enforcement is weak.
Before tax vs
after tax across formats
Here is what 60ml of finished e-liquid actually costs in each format today compared with October 2026. The longfill row is highlighted to show where it sits.
What 60ml at 3mg will cost you
All figures are indicative UK retail totals for the equivalent of 60ml of finished 3mg e-liquid. Post-duty figures include the £2.20 per 10ml VPD plus 20 percent VAT on top of typical current retail margins.
What keeps longfills ahead
plus what could knock them down
Five reasons longfills hold share
The format has structural advantages that survive the duty intact. These are why we expect longfills to hold or grow their share of the refillable-kit market through 2026 plus beyond.
- Lower post-duty per ml than 10ml bottles. Roughly 51p vs 66p per ml after tax.
- Strength flexibility holds value. The ability to pick 0mg, 3mg, 6mg or 9mg becomes more valuable when bottles cost more to waste.
- VG/PG flexibility survives. One concentrate works across pod, MTL plus sub-ohm setups via different Mixer Kits.
- Shortfill refugees. Large-format shortfill users are the biggest group expected to migrate. Many will come to longfills.
- Longer shelf life. Unmixed concentrate stores for longer than pre-mixed liquid so bulk-buying before October is safer.
Four headwinds to watch
The story is not all good. Longfills face real threats from price sensitivity, prefilled pods plus black market growth. These are the risks that could erode share.
- Pods for light users. A 2ml pod carries only 44p duty. Casual vapers may switch to pod kits for convenience plus lower entry price per pack.
- Sticker shock at £30. First-time longfill buyers may balk at the new bottle price even though per-ml value stays competitive.
- Black market pressure. Untaxed illegal imports will be more attractive at the new shelf prices. Legitimate brands lose.
- Format confusion. Mixing remains a barrier for new converts. Lower-friction formats like pre-mixed 10ml bottles may regain ground.
Buy Nixer longfills now
before October 2026
Every bottle bought before 1 October 2026 lands at pre-duty prices. Unmixed longfill concentrate stores well in a cool dark cupboard for twelve months or more so bulk-buying ahead of the tax is a straightforward way to lock in today’s cost per ml.
Browse the full Nixer longfill collection for current pre-duty prices on every flavour plus Mixer Kit combination. Every bottle shipped before October 2026 carries today’s price. Bottles shipped after that date will reflect the new VPD plus VAT structure.
For more context on longfills plus the wider UK vaping market, head to our complete Nixer vape review hub where every practical question including mixing, strength selection plus flavour steering is covered in its own article.
Back to the Nixer Vape Review hub
This article is one chapter in our complete Nixer knowledge base. Head back for the full index covering longfill basics, mixing, strength selection plus the full vape tax coverage.
More on the 2026
vape tax
For the full explainer of what the Vaping Products Duty means for everyday longfill users including the price maths plus steps to take before October, see longfills and the 2026 vape tax: what it means for vapers. For the Nixer-specific angle on why we believe the brand is positioned well for the new duty landscape, why Nixer could lead the longfill market post-2026 vape tax explains our strategy. Plus for the budget-focused case for switching to longfills in the first place, why budget-conscious vapers are switching to Nixer longfills covers the cost argument.