The hidden costs of the UK's Vaping Products Duty

When the Government announced the Vaping Products Duty, most of the conversation focused on higher prices for adult vapers. But the extra cost at the checkout may only be one part of the story.

From healthcare and productivity to enforcement and public health, what could the VPD ultimately cost the country as a whole?

Since the Vaping Products Duty was announced, almost every conversation has centred on one question: how much more will vaping cost?

It's an important question, and one we've explored in depth in our guide to the 2026 vape price increase. For millions of adult vapers, higher prices will directly impact household budgets.

But there's another side to the story that receives far less attention.

Whenever governments introduce a new tax, they naturally estimate how much money it will raise. The money collected is easy to count. The knock-on effects are much harder to measure. Taxes can change behaviour, create unintended consequences and generate new costs elsewhere in the system.

The Vaping Products Duty is no exception.

If some smokers decide not to switch because vaping becomes less affordable, if some former smokers return to cigarettes, or if illicit products become more attractive, the financial impact could extend far beyond the checkout.

So, who really pays for the UK's vape tax?

For years, UK public health policy has encouraged adult smokers who cannot quit nicotine altogether to switch to vaping instead.

The principle has always been simple: while vaping isn't risk-free, it is widely recognised as substantially less harmful than smoking.

Price has played an important role in that success.

Compared with buying a packet of cigarettes every day, vaping has offered many smokers a way to reduce both the health impact of combustible tobacco use and the weekly cost. That price difference has been one of vaping's greatest strengths.

The Vaping Products Duty narrows that gap.

For some adult vapers, the extra cost may simply be absorbed into their monthly budget. Others may change products or turn to less scrupulous suppliers. But for smokers who are still deciding whether to switch, the calculation becomes more complicated.

Every pound added to the cost of vaping reduces one of the strongest incentives to move away from cigarettes.

Government impact assessments acknowledge that taxation can influence consumer behaviour, but predicting exactly how many people may delay switching - or return to smoking - is far more difficult. The long-term consequences of those decisions could take years to become visible.

Smoking remains one of the UK's biggest preventable causes of illness.

Treating smoking-related conditions such as lung cancer, chronic obstructive pulmonary disease (COPD), heart disease and stroke costs the NHS in England an estimated £2.4–£2.6 billion every year. Those figures have gradually fallen as smoking prevalence has declined, helped in part by more smokers moving to less harmful alternatives.

The question is whether the Vaping Products Duty risks slowing that progress.

If fewer smokers switch, or if even a relatively small proportion of former smokers relapse, those healthcare savings could begin to erode over time.

Nobody is suggesting the impact would happen overnight. Smoking-related illnesses often develop over many years. But that's precisely what makes these costs so easy to overlook. The revenue generated by the VPD appears in next year's Treasury accounts; the healthcare consequences may not become apparent for another decade.

Smoking doesn't just affect healthcare - it also affects productivity.

Research has consistently shown that smoking contributes to increased sickness absence, reduced productivity and early retirement through ill health. 

Action on Smoking and Health estimates the wider economic cost of smoking to employers runs into many billions of pounds each year through lost output and absenteeism.

Every smoker who successfully switches represents more than an individual health improvement. They also represent someone who may require fewer smoking breaks, experience fewer smoking-related illnesses and remain healthier throughout their working life.

If the Vaping Products Duty makes switching less attractive for some smokers, the economic consequences may extend well beyond healthcare budgets.

These costs rarely appear alongside Treasury revenue forecasts, but they are ultimately paid by employers, employees and the wider economy.

One of the more curious aspects of the Vaping Products Duty is how it sits alongside the Government's wider ambition to create a smoke-free generation.

At the same time as introducing a tax that increases the cost of vaping, the Government continues to invest in programmes such as Swap to Stop, encouraging adult smokers to make the transition away from cigarettes.

Those two objectives don't necessarily conflict - but they do create an interesting tension.

If vaping becomes less affordable and more smokers struggle to switch successfully, demand for stop-smoking support may increase. 

Local authorities may need to invest more heavily in behavioural support, cessation services and follow-up interventions to achieve the same outcomes.

The products people are being encouraged to use could become harder for some to afford.

Collecting tax is rarely as simple as introducing it.

The Vaping Products Duty requires entirely new systems to ensure products entering the UK market are correctly declared, taxed and compliant. That means new responsibilities for HMRC, Border Force, Trading Standards and manufacturers alike.

There are duty stamps to administer, imports to inspect, counterfeit products to identify and illicit supply chains to disrupt.

Each of those activities requires people, technology and ongoing funding.

While these costs are unlikely to outweigh the revenue generated by the duty, they nevertheless form part of its overall economic impact and should be considered alongside the headline figures.

For independent vape retailers, the VPD represents far more than a simple price increase.

Businesses must adapt stock management systems, update pricing, manage cash flow around duty-paid inventory, train staff and navigate a significantly more complex regulatory landscape.

Many of these changes happen quietly behind the scenes.

Unlike the tax itself, they aren't visible on a customer's receipt, yet they still carry a financial cost. Larger businesses may absorb some of those costs more easily than smaller retailers, potentially increasing pressure on independent specialist vape shops that already operate on relatively modest margins.

Ultimately, much of that additional cost may work its way back to consumers.

The UK's vaping market has evolved rapidly over the past decade.

Manufacturers have continually refined devices, improved battery technology, developed more satisfying nicotine formulations, and expanded flavour ranges that help different smokers find products that work for them.

Innovation requires investment.

If every additional millilitre of e-liquid carries a fixed duty cost, manufacturers may become more cautious about launching niche products or experimenting with new formats that carry greater commercial risk.

Most innovation happens quietly. We tend to notice it only when it stops.

The long-term question is whether a more heavily taxed market becomes a less innovative one - and whether fewer new products ultimately means fewer smokers finding a successful alternative to cigarettes.

Governments rarely have the luxury of making decisions with perfect information.

The Vaping Products Duty has been introduced with clear objectives: to raise revenue and to create greater parity between vaping and other nicotine products.

Whether those objectives are achieved will become clearer over time.

The more difficult question is whether the wider costs have been fully considered.

If smoking rates continue to fall, illicit trade remains under control and adult smokers continue switching despite higher prices, many of today's concerns may prove unfounded.

But if the duty discourages switching, increases relapse rates, places greater pressure on stop-smoking services, or creates additional costs elsewhere in the system, the true price of the policy may extend far beyond the revenue collected.

Ultimately, the success of the Vaping Products Duty shouldn't be judged solely by how much money it raises.

It should also be judged by what it costs - because the true cost of any tax isn't just measured in pounds collected; it should also be measured by its impact on people, public health, and the economy.