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Is mixing your own e-liquid at home illegal from 1 October?
HMRC's guidance draws the line at duty-paid inputs, not at selling. What the page says, the sanction it names, and how three retailers' claims compare.
Not necessarily. HMRC’s guidance says from 1 October 2026 mixing non-duty-paid liquids for a vape is unapproved manufacture, “even if not produced for commercial sale”, while mixing duty-paid liquids — its example is a duty-paid shortfill and a duty-paid nicotine shot — is not caught. The line is whether duty has been paid on the inputs, not whether you sell the result.
That is the whole answer to whether it is illegal to mix your own e-liquid at home after Vaping Products Duty starts, and it comes from one paragraph on one gov.uk page. It is worth setting out in full because the pages currently answering the question for most searchers are written by shops that sell the ingredients, and they do not agree with each other.
Is it illegal to mix your own e-liquid at home after Vaping Products Duty starts? What HMRC’s page says
This desk read HMRC’s guidance, Prepare for Vaping Products Duty and the Vaping Duty Stamps Scheme, on 11 September 2026. The page is marked “Updated 9 July 2026”. Under the heading “Manufacturing vaping products in the UK without approval from HMRC” it says:
From 1 October 2026 it will be against the law to manufacture vaping products in places that have not been checked and approved by HMRC. This includes the mixing of non-duty paid liquids to produce a liquid to be used in a vape, even if not produced for commercial sale.
And immediately after:
It will not include the mixing of multiple duty-paid liquids, for example a duty-paid ‘shortfill’ (nicotine-free liquid) and duty-paid ‘nicotine-shot’.
Two things follow. First, “not for commercial sale” is no defence: the test is the duty status of what goes into the bottle. Second, the ordinary shortfill-plus-nic-shot routine is HMRC’s own example of what is not caught, provided both liquids are duty-paid. We covered the shortfill format itself in our review of the 100 ml shortfill against the duty.
The guidance implements Vaping Products Duty, whose primary legislation HMRC’s tax note places in Finance Bill 2025-26, with secondary legislation that the same note said was expected in March 2026. We have not read either instrument for this piece and quote only the guidance.
What the three retailer pages tell their customers
The top results for this question, as returned to our researcher, are all retailer blogs. We read three of them on 11 September 2026. None of the three, in the text we could open, names, links or dates the HMRC page.
| Page | What it says about mixing at home | What HMRC’s page says |
|---|---|---|
| DarkStar, dated 2 June 2026 | “Mixing duty-paid liquids at home is still legal”, quoting HMRC’s duty-paid carve-out without a source | Matches the guidance on the carve-out; as read here, omits the sanction and the approval route |
| One Pound E-Liquid, undated | From 1 October 2026 “it will be illegal for you to mix your own e-liquids at home without declaring it to HMRC” | Guidance turns on non-duty-paid inputs; it contains no “declare” step and does not say duty-paid mixing needs approval |
| Make My Vape, dated 24 July 2026 | “DIY e-liquid mixing will be affected”; lists VG, PG, nic shots, concentrates and shortfills as affected when sold for vaping | The page as read by this desk does not answer whether home mixing is legal or needs approval |
DarkStar’s page is the closest to HMRC’s wording. It reproduces the carve-out sentence almost verbatim and gives the rate as 22p per ml. It also carries a 12 per cent discount code and a line that it is not legal or tax advice, and its comment thread was still running on 2 September.
One Pound E-Liquid’s page is the one that produces the “illegal” headline. Its stronger claims — that a home mixer “must declare it to HMRC”, that it is “highly unlikely” HMRC would approve a private individual, and that a litre of PG would carry “£220 of additional tax” plus VAT — are the retailer’s own framing and arithmetic. The £220 is 1,000 ml at 22p, which is consistent with the rate; the “declare” step is not on HMRC’s page as read, and whether HMRC would approve an individual is not something the guidance addresses either way.
What the three pages leave out
Three facts sit on the HMRC page. The first two appear on none of the retailer pages we read; the third, the 1 April 2027 stamp date, is stated as a stamp deadline only on Make My Vape’s — One Pound E-Liquid’s page gives 1 April 2027 only as the date its pre-tax stock stays on sale until.
The sanction. HMRC’s page states that from 1 October 2026 “you must have the appropriate approval before you start an activity that requires approval”, which it says includes manufacturing vaping products, and that “if you carry out an activity without the appropriate approval, you will be subject to civil or criminal sanctions, potentially leading to prison sentences”. That is HMRC’s wording about unapproved activity in general; the page does not carve out a separate position for individuals. It adds that any decision to prosecute is for the UK prosecuting authorities, and that possession, sale, import or transport of unstamped vaping products will be further offences. Who actually polices that at the retail end is the subject of our review of trading standards capacity.
The lead time. Approval applications opened on 1 April 2026, and HMRC’s page says applicants “should apply at least 45 working days” before starting the activity. That is a recommendation on the page, not a statutory processing time, but 45 working days from the date of this piece falls after 1 October.
The second date. From 1 April 2027, the page says, all vaping products outside duty suspension must carry a vaping duty stamp regardless of when they were produced. The stamp is the practical evidence that a liquid is duty-paid — we covered the digital stamp scheme and its SKU fields when it opened — so after that date the “is this input duty-paid” question for a home mixer becomes “is there a stamp on the bottle”.
The rate, for reference
HMRC’s tax information and impact note, published 26 November 2025, sets the duty at a flat £2.20 per 10 ml of vaping liquid, “regardless of how much nicotine is contained in the product”, on products produced in or imported into the UK. It records that the earlier tiered structure was replaced with a flat rate after consultation. We set out the rate, the stamp and the three dates in August.
The questions people ask
Can I mix my own vape juice without tax? Not from unpaid inputs. HMRC’s guidance says that from 1 October 2026 mixing non-duty-paid liquids to produce a liquid for a vape is manufacturing that needs HMRC approval, even with no sale involved. Mixing liquids on which duty has already been paid is not caught. In practice, the duty is paid upstream on the ingredients, so a home mixer using shop-bought, duty-paid liquids is not avoiding it.
Does the UK vape tax apply to PG, VG, nicotine and flavourings? HMRC’s tax information note says the duty is charged on vaping products produced in or imported into the UK at £2.20 per 10 ml, regardless of nicotine content. HMRC’s preparation guidance, as read by this desk, does not list PG, VG or flavourings by name. The three retailer pages this desk read all state that ingredients sold for vaping are caught; that is their reading, and we have not seen HMRC state it product by product.
Is mixing duty-paid shortfill and nic shots at home still legal? On HMRC’s published wording, yes. The guidance states that the prohibition on unapproved manufacture will not include the mixing of multiple duty-paid liquids, and gives a duty-paid shortfill and a duty-paid nicotine shot as its example. The condition is that duty has been paid on each liquid being combined, which from 1 April 2027 a duty stamp on the retail packaging is meant to evidence.
What happens if you make e-liquid without HMRC approval? HMRC’s guidance says that from 1 October 2026 anyone carrying out an activity that requires approval, including manufacturing vaping products, without that approval will be subject to civil or criminal sanctions, potentially leading to prison sentences, and that any decision to prosecute rests with the UK prosecuting authorities. The page does not set out a tariff, and it does not separate home mixers from commercial producers.
When does Vaping Products Duty start? 1 October 2026. HMRC’s tax information note, published 26 November 2025, gives that operative date, with registrations for manufacturer approval opening on 1 April 2026. HMRC’s preparation guidance adds a second date: from 1 April 2027 all vaping products outside duty suspension must carry a vaping duty stamp, regardless of when they were produced.
We are not advising anyone to mix, or not to mix, and we will re-read the HMRC page if its update date moves before 1 October. Nicotine is addictive, UK sale is restricted to over-18s, and we write for adults who already use it or who are weighing a move away from cigarettes — not for anyone else.