If you're trying to work out a realistic budget before you launch, the honest answer is that it depends entirely on the model you pick. A dropshipping store can get going for a few hundred pounds. A wholesale operation can swallow tens of thousands before you make a single sale.
This guide breaks down what you'll actually spend across the five most common ecommerce models, what the ongoing running costs look like, and the tax and compliance setup you should budget for from day one. We've kept the numbers grounded and flagged every tax figure to the current 2025/26 tax year.
It's written for new and early-stage UK online sellers, whether you're testing a side hustle or building something you'll go full-time on.
A quick word on the numbers below. Software prices, supplier fees and ad budgets move around and vary by provider, so treat them as realistic planning ranges rather than fixed quotes. The tax and statutory figures, on the other hand, are fixed to the 2025/26 tax year and sourced from gov.uk.
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What does every ecommerce business pay for?
Whatever model you choose, a handful of costs apply to almost everyone.
Business setup. You can trade as a sole trader for free by registering for Self Assessment with HMRC. If you incorporate a limited company instead, Companies House charges £100 to register online (£124 by post) as of 2026. A company gives you limited liability and can be more tax-efficient as profits grow, but it adds filing obligations. We cover the trade-off in our self-assessment services and statutory accounts pages.
Bookkeeping and accounting. You can start with a spreadsheet, but cloud accounting software typically runs £10 to £40 a month, and an accountant who knows ecommerce will usually cost more on top. Getting this right early saves pain at year-end, especially once you're handling marketplace payouts, returns and VAT.
Business insurance. Public liability cover often starts around £100 a year, and product liability cover (sensible if you're selling physical goods) adds to that. Costs depend on what you sell and your turnover.
Branding. A logo can cost nothing if you do it yourself, or a few tens of pounds via a freelancer, up to a few hundred or more for a full brand identity.
None of this is huge on its own. The big differences between models come from inventory, platform fees and marketing.
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How much does it cost to start dropshipping in the UK?
Dropshipping is the lowest-cost model. You don't hold stock. When a customer orders, your supplier ships directly to them, so your upfront outlay is mostly your store, your domain and your ads.
A realistic budget looks like this.
| Budget tier | Typical first-year spend | What it covers |
|---|---|---|
| Lean | £300 to £700 | Domain, a basic store plan, a free theme, modest ad testing |
| Standard | £1,500 to £3,500 | Paid theme, a supplier app, steadier ad spend |
| Higher | £5,000+ | Custom design, freelancers, sustained marketing |
Your store platform is usually the recurring core cost (commonly £15 to £40 a month on an entry plan), with a domain at roughly £10 to £35 a year. Supplier-sourcing apps range from free to around £75 a month.
The variable that really decides your budget is advertising. Paid social and search can run from a few pounds a day to several hundred a month once you scale. Dropshipping margins are typically thin, so disciplined ad spend matters more here than in any other model.
Best for: testing product ideas quickly with low capital at risk. If that's your plan, our accountants for ecommerce sellers can help you keep clean records from the first sale.
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How much does an independent ecommerce website cost?
An independent store on your own domain gives you control over branding and customer data, which matters if you're building a long-term brand rather than chasing quick flips.
Excluding stock, a first-year budget commonly falls between £500 and £5,000+.
- Domain and hosting: roughly £30 to £120 a year depending on provider and plan.
- Platform: a hosted store plan (entry tiers commonly £15 to £40 a month) or a self-hosted open-source option that's free to license but needs paid hosting and plugins.
- Design: free templates at one end, £500 to £4,000+ for custom design at the other.
- Apps and automation: email, fulfilment and analytics tools, often £0 to £100 a month combined.
If you sell physical products, add your inventory cost on top. The website itself is rarely the expensive part. Stock and marketing are.
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How much does it cost to start Amazon FBA private label?
Private label means putting your own brand on a product (usually manufactured to order) and selling it through a marketplace such as Amazon. Your largest cost is your first inventory order.
A typical first-year budget runs £1,500 to £20,000+, broken down roughly as follows.
| Component | Lean | Standard |
|---|---|---|
| First inventory (manufacture + shipping) | £1,600 to £3,500 | £4,000 to £12,000 |
| Marketplace selling account | Individual plan, or around £30/month for a professional plan | Professional plan |
| Research and listing software | £0 to £25/month | £25 to £60/month |
| Product photography | DIY | £100 to £400 |
| Launch advertising | £200 to £500 | £500 to £2,000+ |
| Brand protection (UK trade mark) | Optional | From £205 for one class |
A few cost notes worth planning for:
- Inventory is where budgets blow out. Manufacturing in volume, freight and import duty all add up, and you pay before you earn.
- Barcodes. Most marketplaces want GS1 product identifiers, which you buy from GS1 UK on an annual licence.
- Trade mark (optional). Registering a UK trade mark online in one class costs £205 to apply via the Intellectual Property Office (£60 per extra class), per gov.uk's trade mark fees. It isn't mandatory, but it can unlock brand-protection features on some marketplaces.
FBA also involves import VAT and customs duty on goods you bring in, which is easy to underestimate. If you're importing, talk to our ecommerce accountants before you place a large first order.
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How much does a wholesale ecommerce business cost?
Wholesale means buying established products in bulk and reselling them at a margin. It's the most capital-intensive model because you commit to large stock orders up front.
Realistic first-year budgets:
- Home-based, modest stock: £7,000 to £15,000
- Rented warehouse, some staff: £20,000 to £50,000
- Larger operation: £100,000+
Inventory is by far the biggest line, often £5,000 to £50,000+ depending on category and order size. Add inventory-management software (frequently £100 to £270 a month), your sales platform, and storage (a third-party fulfilment provider or rented space, commonly £500 to £2,000+ a month).
This model suits people with existing supplier relationships and the working capital to absorb stock that doesn't sell as fast as planned.
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What are the ongoing monthly running costs?
Startup cost is only half the picture. The reason so many new stores stall is cash flow, not the launch budget. Plan for these recurring costs from the start.
| Cost | Dropshipping | Website | Private label | Wholesale |
|---|---|---|---|---|
| Platform / hosting | £15 to £40 | £10 to £40 | ~£30 | £30 to £440 |
| Software tools | £0 to £75 | £0 to £100 | £25 to £60 | £100 to £270 |
| Marketing / ads | varies widely | varies widely | £200 to £2,000+ | £200 to £1,000 |
| Storage / fulfilment | £0 | £0 to £500 | £200 to £2,000 | £500 to £2,000 |
| Accounting | £10 to £40 | £10 to £40 | £40 to £400 | £100 to £400 |
Two things consistently catch new sellers out:
- Returns. Online buyers have a statutory right to change their mind on most goods. Budget for refunds and the admin around them.
- Restocking. Product-based models need capital to reorder before the previous batch sells through. Run out at the wrong moment and you lose ranking and momentum.
A simple rule: don't spend your entire pot on launch. Keep a working-capital buffer.
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Which model is cheapest to start?
Here's the at-a-glance comparison.
| Model | Typical startup | Inventory needed | Relative risk |
|---|---|---|---|
| Dropshipping | £300+ | No | Low capital, thin margins |
| Independent website | £500+ | Optional | Medium |
| Amazon FBA private label | £1,500+ | Yes, moderate | Medium to high |
| Wholesale | £7,000+ | Yes, large | High capital |
Dropshipping is the cheapest entry point by a wide margin. But cheap to start isn't the same as easy to profit from: low barriers mean more competition and tighter margins. Wholesale costs the most up front but builds on proven products and supplier terms.
The right choice depends on your capital, your appetite for risk, and how hands-on you want to be. There's no single best model, only the best fit for your situation.
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What tax and compliance should you budget for?
This is the part too many cost guides skip, and it's where we spend most of our time with ecommerce clients. Here's what to plan for, with every figure tied to the 2025/26 tax year.
When do you have to register for VAT?
You must register for VAT once your taxable turnover goes over £90,000 in any rolling 12-month period, the current registration threshold. The deregistration threshold is £88,000. Marketplace sales count towards this, so fast-growing sellers can cross it sooner than they expect. See gov.uk's VAT registration guidance.
You can also register voluntarily below the threshold to reclaim VAT on costs, though that means charging VAT on your sales and filing returns. If you'd like help deciding, our tax advisory team can run the numbers for your situation.
What about income tax on your profits?
If you trade as a sole trader, your profits are taxed through Self Assessment. For 2025/26 the personal allowance is £12,570, after which the basic rate of 20% applies to the next slice of taxable income up to £37,700, then 40% above the higher-rate threshold. Class 4 National Insurance also applies to self-employed profits at 6% between £12,570 and £50,270, and 2% above that.
A limited company pays Corporation Tax instead. For Financial Year 2025 the small profits rate is 19% on profits up to £50,000 and the main rate is 25% on profits over £250,000, with marginal relief in between. You can estimate the bands for your own figures with our income tax calculator and self-employed tax calculator.
Do you need to worry about Making Tax Digital?
If you're VAT-registered, you already keep digital records and file VAT returns through compatible software under Making Tax Digital for VAT.
Making Tax Digital for Income Tax then phases in for sole traders and landlords. From 6 April 2026 it applies to those with qualifying income over £50,000 (based on your 2024/25 figures), dropping to £30,000 from April 2027 and £20,000 from April 2028. Budget for MTD-compatible software and quarterly updates if you'll be in scope. See gov.uk's Making Tax Digital for Income Tax guidance.
Other compliance to factor in
- Consumer rights. Most online sales carry a 14-day right to cancel and clear up-front pricing obligations.
- Data protection. A privacy policy and lawful handling of customer data are required under UK GDPR.
- Product safety and labelling. Depending on what you sell, marking, safety information and clear labelling may apply.
### Illustrative example: budgeting for VAT before you hit the threshold Imagine Maya runs a Shopify homeware store as a sole trader. In month nine her rolling 12-month turnover hits £92,000, crossing the £90,000 VAT threshold. From her effective registration date she must charge 20% VAT on standard-rated sales and file VAT returns. Because she hadn't built VAT into her pricing, the 20% comes straight out of her margin until she adjusts her prices. Planning for the threshold a few months early would have let her phase prices up smoothly. (Figures are illustrative; the threshold and rate are 2025/26 values from gov.uk.)
Talk to an accountant who knows ecommerce
Getting your structure, VAT timing and bookkeeping right from the start is the cheapest insurance you'll buy. Zmartly works with UK online sellers across Amazon, Shopify and the marketplaces, and we'll help you launch on solid foundations.
Book a free 20-minute call with a Zmartly accountant to map out your setup and tax plan before you spend a penny on stock. Visit our ecommerce accountants page to get started.
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FAQs
How much does it cost to start an ecommerce business in the UK?
It ranges from roughly £300 for a lean dropshipping store to £100,000 or more for a large wholesale operation. The main drivers are inventory, marketing and which model you choose. Dropshipping and print-on-demand sit at the low end because you don't hold stock; private label and wholesale cost more because you buy inventory up front.
What is the cheapest ecommerce business to start in the UK?
Dropshipping is usually the cheapest to launch, often £300 to £700, because there's no inventory to buy. You can register as a sole trader for free with HMRC and use low-cost store and email tools. The trade-off is thinner margins and more competition, so disciplined marketing matters.
Do I need to register a company to sell online in the UK?
No. You can trade as a sole trader by registering for Self Assessment with HMRC, which is free. Incorporating a limited company costs £100 online with Companies House as of 2026 and adds filing duties, but it gives you limited liability and can be more tax-efficient as profits grow. You can incorporate later as the business scales.
When do I have to register for VAT as an online seller?
You must register once your taxable turnover exceeds £90,000 in any rolling 12-month period, the threshold for 2025/26. Marketplace sales count towards it. You can also register voluntarily below the threshold to reclaim VAT on your costs, though you'll then charge VAT on sales and file returns.
What are the ongoing monthly costs of running an ecommerce store?
Expect recurring costs for your platform or hosting, software tools, marketing, storage or fulfilment, and accounting. These vary widely by model, from tens of pounds a month for a lean dropshipping store to several thousand for private label or wholesale once you add ads, storage and stock replenishment. Cash flow, not the launch budget, is what most new stores underestimate.
Will I need Making Tax Digital software?
If you're VAT-registered, yes, you already use it for VAT. Making Tax Digital for Income Tax then applies to sole traders and landlords with qualifying income over £50,000 from 6 April 2026, over £30,000 from April 2027, and over £20,000 from April 2028. If you'll be in scope, budget for compatible software and quarterly updates.
