Soap Maker Tax UK 2026/27: CPSR Costs, Ingredients and Take-Home
Handmade soap and cosmetics sellers face a real compliance cost most crafters underestimate: a Cosmetic Product Safety Report, often £50-£150+ per product. Full worked example on £18,000 turnover and what you actually keep.
The hidden compliance cost most soap makers underestimate
Handmade soap and cosmetics look like a classic low-overhead craft business — a few pounds of oils and lye, some fragrance, a mould, and you're selling bars at a market stall. What catches most first-time sellers off guard is the Cosmetic Product Safety Report (CPSR): a legal requirement under UK cosmetics regulation that applies to every cosmetic product you sell, from soap to lip balm to bath bombs. It must be prepared by a qualified cosmetic safety assessor, and it isn't a formality you can skip because you're small — a market stall selling three bars a week is held to the same legal standard as a large manufacturer.
Assessors typically charge £50-£150+ per product or formulation, and a "product" usually means each distinct recipe — not each scent variation of an identical base. A soap maker with 6 base recipes (say, an oat and honey bar, a charcoal and tea tree bar, a shea butter bar, and three more) might reasonably spend £450-£900 getting the whole starting range certified before selling a single bar.
Self-Employed Tax Calculator
Calculate income tax, Class 2 and Class 4 National Insurance for self-employed and sole traders for 2025/26.
Open Self-Employed Tax calculatorWorked example: starting out, £8,500 turnover, first year of trading
Gross income: £8,500 (weekend markets and a small online shop, first year)
Deductible expenses:
- Ingredients — oils, lye, fragrance oils, essential oils, colourants, botanicals: £1,900
- CPSR assessments for 6 initial product lines (£90 average): £540
- Packaging and legally-compliant labelling (INCI ingredient lists, batch codes): £650
- Product liability insurance: £140
- Craft fair and market stall fees: £480
- Use-of-home costs (flat rate, ~25 hours/month working from home): £216
- Total expenses: £3,926
Taxable profit: £8,500 − £3,926 = £4,574
This sits well below the £12,570 Personal Allowance, so no income tax and no Class 4 NI is due. You still need to register for Self Assessment (required once gross trading income exceeds £1,000) and file a return, but the tax bill itself is £0.
Sole Trader Take-Home Pay Calculator 2026/27
Calculate your net take-home pay as a UK sole trader after Income Tax and Class 4 National Insurance. Compare with PAYE employment.
Open Sole Trader Pay calculatorWorked example: established maker, £18,000 turnover
Gross income: £18,000 (regular markets, a small wholesale account with two local shops, and an online shop)
Deductible expenses:
- Ingredients (cost of goods sold — oils, lye, fragrance, botanicals): £4,300
- CPSR assessments — 4 new products added this year plus 2 re-assessments after reformulation: £680
- Packaging and labelling: £1,350
- Product liability insurance: £180
- Market and craft fair fees: £750
- Website, photography and marketing: £420
- Use-of-home (calculated room proportion — dedicated shed used for curing/mixing, ~30% of a small outbuilding, apportioned utility costs): £340
- Total expenses: £8,020
Taxable profit: £18,000 − £8,020 = £9,980
Still below the £12,570 Personal Allowance, so income tax and Class 4 NI remain £0 — but note how close this is to the threshold. One more wholesale order or a good Christmas market season could push profit over £12,570, at which point tax starts applying to the excess.
Worked example: scaling up, £32,000 turnover
Gross income: £32,000 (soap and cosmetics sold through own shop, three wholesale stockists, and a subscription box)
Deductible expenses:
- Ingredients: £8,600
- CPSR assessments for an expanded 14-product range, including reformulations: £1,150
- Packaging, labelling and shipping materials: £2,900
- Product liability insurance: £220
- Equipment (mixers, moulds, curing racks — Annual Investment Allowance): £1,400
- Marketing, website and photography: £950
- Use-of-home costs: £480
- Total expenses: £15,700
Taxable profit: £32,000 − £15,700 = £16,300
Income tax: (£16,300 − £12,570) × 20% = £3,730 × 20% = £746
Class 4 NI: (£16,300 − £12,570) × 6% = £3,730 × 6% = £224
Total tax and NI: £970
Take-home: £32,000 − £15,700 − £970 = £15,330
Equipment here — mixers, silicone moulds, curing racks — typically qualifies for the Annual Investment Allowance (up to £1,000,000 a year), giving a full deduction against profit in the year of purchase rather than spread over several years.
Compliance and setup costs at a glance
| Item | Typical cost | Notes |
|---|---|---|
| CPSR per product/formulation | £50-£150+ | Legal requirement, assessed by a qualified cosmetic safety assessor |
| Product liability insurance | £80-£220/year | Often required by market organisers and marketplaces |
| Cosmetic Product Notification (submitted via the assessor/portal) | Usually bundled with CPSR fee | Required before first sale in Great Britain |
| Compliant labelling (INCI list, batch code, PAO symbol) | £0.10-£0.50 per label extra vs. generic labels | Legal content requirements, not just branding |
| Trading allowance (if used instead of actual expenses) | £1,000 flat | Rarely beats actual expenses once CPSR fees are counted |
Should you use the trading allowance or claim actual expenses?
The £1,000 trading allowance lets you deduct a flat £1,000 from trading income instead of itemising expenses — useful for very small side hustles with minimal costs. For soap and cosmetics, it almost never makes sense once you're selling real product ranges: a single CPSR assessment can already exceed £100, and by the time you add ingredients, packaging and insurance, actual expenses on even a modest range will comfortably clear £1,000. Claim actual expenses through full Self Assessment registration in nearly all cases — the trading allowance only wins if you're testing the water with one or two products and minimal sales.
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Open VAT calculatorIngredients, packaging and the paperwork that protects you
Keep a simple cost-per-batch record: how much oil, lye, fragrance and botanical went into each batch, and how many bars or units it produced. This does double duty — it supports your expense claims if HMRC ever queries your cost of sales, and it's the same data you need to price products sensibly. Packaging costs go beyond boxes and ribbon: cosmetics carry legal labelling requirements (full ingredient list in INCI format, a batch number, and either a best-before date or a Period-After-Opening symbol), so factor label design and compliant printing into your packaging budget rather than treating it as an afterthought.
Filing and paying
Register for Self Assessment once your gross trading income passes £1,000 in a tax year. Keep ingredient, CPSR, packaging, insurance and use-of-home records throughout the year, and file your return online by 31 January following the tax year end, paying any income tax and Class 4 NI due by the same date. Because many small soap businesses sit close to or below the Personal Allowance in their early years, the filing obligation often exists even when the tax bill doesn't.
self-employed-tax-ukFrequently asked questions
What is a Cosmetic Product Safety Report and do I really need one?
Yes — if you sell any cosmetic product (soap, bath bombs, lip balm, lotion) in the UK, the law requires a Cosmetic Product Safety Report (CPSR) prepared by a qualified cosmetic safety assessor before it goes on sale. It's not optional paperwork; it's a legal requirement under the UK Cosmetics Regulation, and trading without one is a compliance breach regardless of how small your turnover is.
How much does a CPSR cost per product?
Typically £50-£150+ per individual product or shade/variant, depending on the assessor and the complexity of the formulation. A soap maker with 8 distinct recipes (not counting scent-only variations that share the same base formula) could easily spend £600-£1,000 upfront getting their whole range assessed.
Can I amortise CPSR costs across several years for tax purposes?
For Self Assessment cash-basis accounting (the default most sole traders use), you simply deduct the CPSR cost in the tax year you paid for it — there's no requirement to spread it. If a CPSR covers a product you expect to sell for several years, it's still a one-off deductible expense in the year of payment, not a capital asset you depreciate.
Is the £1,000 trading allowance worth using instead of registering properly?
Only if your actual expenses (ingredients, CPSR fees, packaging, insurance) are under £1,000 a year, which is unlikely once you factor in even one or two CPSR assessments. Most soap makers with a genuine product range will have far more than £1,000 in real deductible costs, so claiming actual expenses through full registration nearly always produces a lower tax bill than the flat trading allowance.
Do I need product liability insurance for skin-contact products?
It's strongly recommended and often required by craft fair organisers, market operators and online marketplaces. Because soap and cosmetics touch skin directly, the risk of an allergic reaction or irritation claim is real, and public/product liability insurance (typically £80-£200 a year for a small-scale maker) is a fully deductible business expense.
Can I claim a proportion of my home costs for making soap at home?
Yes, using either simplified flat-rate use-of-home allowances (based on hours worked from home per month) or a calculated proportion of actual household bills based on the space and time used for soap making. Given that soap making often uses a dedicated corner of a kitchen, garage or shed for curing and storage, a room-proportion calculation based on floor area and hours used sometimes gives a fairer (and larger) deduction than the flat rate.
How much tax would I pay on £18,000 turnover from a soap business?
After typical costs of around £6,500-£7,500 (ingredients, CPSR fees, packaging, insurance, home workspace), taxable profit lands around £10,500-£11,500 — below the £12,570 Personal Allowance, meaning little or no income tax and Class 4 NI would be due, though you'd still need to file a Self Assessment return.
Do I need to register for VAT as a small soap business?
Only once your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period, which is rare for a home-based soap or cosmetics maker unless you scale significantly into wholesale or subscription boxes. Below that threshold, registration is optional and rarely worthwhile for a business selling mainly to individual retail customers.
Are raw ingredients like oils and lye a straightforward expense?
Yes — oils, lye (sodium hydroxide), fragrance oils, essential oils, colourants and botanicals are all cost of goods sold, deducted from income as part of your normal running costs. Keep receipts and a simple cost-per-batch record, since HMRC can ask you to justify the ingredient cost behind your claimed cost of sales.
What packaging costs can I deduct?
Boxes, wrapping, labels, ingredient/allergen labelling (a legal requirement for cosmetics, not just nice branding), tissue paper and shipping materials are all fully deductible. Since cosmetic labelling has specific legal content requirements (ingredient list in INCI format, best-before or period-after-opening symbol, batch number), factor label design and printing into your packaging costs from day one.
Try the calculators
Self-Employed Tax Calculator
Calculate income tax, Class 2 and Class 4 National Insurance for self-employed and sole traders for 2025/26.
Sole Trader Take-Home Pay Calculator 2026/27
Calculate your net take-home pay as a UK sole trader after Income Tax and Class 4 National Insurance. Compare with PAYE employment.
VAT Calculator
Add or remove VAT from any amount. Supports 20%, 5% and 0% UK VAT rates.
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