UK Plastic Packaging Tax Calculator (PPT)

Understanding the UK Plastic Packaging Tax

The UK Plastic Packaging Tax (PPT) is one of the biggest hidden costs in foodservice packaging, and one of the most misunderstood. This guide explains how the tax works, who pays it, why "compostable" plastic is still caught, and how switching to bagasse removes the liability. Use the calculator above to size your own exposure, then read on to understand the numbers.

What the Plastic Packaging Tax is

Introduced on 1 April 2022, the PPT is a charge on plastic packaging manufactured in or imported into the UK that does not contain at least 30 percent recycled plastic. It was designed to make recycled content cheaper than virgin plastic and to push producers toward alternatives. It applies to finished plastic packaging components, and the business that manufactures or imports them is liable.

The current rate and how it changes

The rate is £228.82 per tonne from 1 April 2026. It is reviewed every April and rises with inflation, and it has increased every year since launch. Because the rate is index-linked, exposure that looks modest today grows automatically each year, which is why many buyers model a three-year horizon rather than a single year.

Who has to register and pay

You must register if you manufacture or import 10 or more tonnes of plastic packaging over a 12-month period. Once registered, you pay the per-tonne rate on every component below the 30 percent recycled-content threshold. Importers are caught as well as manufacturers, so buying plastic packaging from overseas does not avoid the tax, it simply moves the liability to the importer of record.

Why "compostable" plastic is not exempt

This is the single most common and most costly misunderstanding. For Plastic Packaging Tax purposes, plastics described as biodegradable, compostable or oxo-degradable still count as plastic. Switching from conventional plastic to a compostable plastic such as PLA does not remove the tax. The only way to leave the tax behind entirely is to move to a material that is not plastic at all. Natural moulded fibre such as bagasse sits outside the definition, so it is not taxed.

What counts as recycled content

Recycled plastic means material reprocessed from recovered plastic, whether post-consumer or pre-consumer, but not scrap reused in the same process it came from. Reaching the 30 percent threshold exempts a component, but recycled content is not always available for food-contact packaging, where safety rules limit which recycled streams can be used. That constraint is why many foodservice items cannot hit 30 percent and stay taxable.

How the tax is calculated

The maths is simple: taxable tonnes multiplied by the rate. Import 50 tonnes of plastic packaging with under 30 percent recycled content and the annual tax is 50 times £228.82. To convert unit volumes to tonnes, multiply the number of items by the item weight in grams and divide by one million. One million clamshells at 15 grams each is 15 tonnes. The calculator above does this for you.

How switching to bagasse removes the liability

Because bagasse is sugarcane fibre, not plastic, bagasse tableware falls outside the Plastic Packaging Tax completely. There is no per-tonne charge, no registration for those components, and no annual increase to budget for. Bagasse is also unaffected by the single-use plastic bans that now cover plastic plates, bowls, trays and cutlery in England. To compare the full landed cost rather than the tax line alone, use our Cost-of-Switching Calculator.

The plastic tax is only part of the picture

Tax is one cost, a ban is a harder stop. Since 1 October 2023, England has banned single-use plastic plates, bowls, trays, cutlery and expanded polystyrene food containers and cups. For those items the question is no longer how much tax you pay, but whether you can sell the product at all. If you supply other markets, check the rules first with our Packaging Compliance Checker, and see sourcing guidance for the UK market.

How to reduce your plastic tax exposure

1. Raise recycled content to 30 percent or more, where food-safety rules allow it.
2. Switch taxable plastic components to non-plastic materials such as bagasse moulded fibre.
3. Redesign to remove unnecessary plastic packaging entirely.

For most foodservice buyers, moving high-volume disposables such as plates, clamshells, bowls and trays to bagasse is the fastest way to cut both the tax and the ban risk in one step.

Get an exact figure

The calculator is a directional estimate. For a firm quote on bagasse equivalents to your current plastic range, send your specifications and volumes and we return a landed-cost comparison within two working days. For the official rules and rate, see GOV.UK and our UK Plastic Tax guide.