Most UK businesses start with a mix: a bit of personal savings, a small loan, maybe a grant, and revenue from early customers. You rarely need a single big cheque to begin — but you do need a clear picture of what's available, what each source costs, and the order in which to consider them.
Quick answer
Bootstrapping, a Start Up Loan, a grant, or equity investment? Each has a price — sometimes in interest, sometimes in ownership, sometimes in the hours of paperwork it takes to win. Start with the first checklist items below, then verify any registration, tax or compliance step against the official sources linked on this page.
Section 01
Bootstrapping & founder capital
By far the most common way UK businesses start. Cheap, fast, and you keep 100% control. The discipline of trading from day one tends to produce stronger businesses than ones flush with outside cash. Founders typically draw on savings, a redundancy payment, freelance income, or a working spouse — none of which need a pitch deck, due diligence or interest payments. The constraint forces sharper decisions about what's actually worth spending on.
- No dilution, no debt, no investor obligations
- Forces ruthless prioritisation — usually a good thing
- Slower growth ceiling if the business is genuinely capital-intensive
- Personal risk: don't put in money you can't afford to lose
Section 02
Start Up Loans (British Business Bank)
Government-backed personal loans of £500 to £25,000 for new UK businesses (trading under 36 months). Fixed 6% interest, terms of 1–5 years, with 12 months of free mentoring included. It's a personal loan, not a business loan — so you're personally liable even if the company fails. For most first-time founders it's still the cheapest debt available and the application process itself (cash flow forecast, business plan) is a useful forcing function.
- Available to UK residents aged 18+
- No early repayment penalty — overpay whenever you want
- Multiple co-founders can each apply for up to £25k
- Free business plan and cash flow templates provided
- A formal credit check is run; weak credit history can be a blocker
Section 03
Grants
Non-repayable funding — but competitive and slow. The big sources are Innovate UK (innovation, R&D, deep tech), local Growth Hubs (regional schemes that change frequently), the Prince's Trust Enterprise (under 30s, awards of £500–£5,000), and sector-specific funds (creative, environmental, manufacturing). Application cycles often take 3–6 months and grants typically pay in arrears or require match-funding. Always check eligibility carefully before spending time on a proposal.
- Innovate UK Smart Grants: £25k–£500k for innovative R&D projects
- Local Growth Hub grants: often £1k–£10k, region-specific
- Match funding: many grants require you to put in 30–50% of project cost
- Reimbursable: you spend the money first, then claim it back
Section 04
Angel investment & equity
If your business needs serious upfront capital — product development, hardware, deep-tech, fast scaling — angel investors and seed funds invest in exchange for shares. UK investors love the SEIS and EIS schemes, which give them generous tax relief on what they put in. Realistic equity rounds start with friends-and-family (£10k–£50k), then a SEIS round (£100k–£250k), then potentially EIS or seed VC (£500k+).
- SEIS: up to £250k raised, 50% income tax relief for investors, max £200k investment each
- EIS: follows SEIS, up to £12m lifetime, 30% income tax relief
- Both require Advance Assurance from HMRC before you raise
- Equity is forever — only take it if you genuinely need it
- Expect 6–9 months from first conversation to money in the bank
- Convertible loan notes / SAFEs are common alternatives for early rounds
Section 05
Bank loans, overdrafts & asset finance
Traditional high-street loans become realistic once you have 12–24 months of trading history. Before then, expect the bank to ask for a personal guarantee that effectively neutralises the 'limited' in limited liability. Asset finance (loans secured against equipment or vehicles you're buying) and invoice finance (borrowing against unpaid invoices) are often available earlier than unsecured lending.
- Recovery Loan Scheme: government-backed lending of up to £2m via accredited lenders
- Asset finance: cheaper than unsecured because the asset is collateral
- Invoice factoring/discounting: useful when customer payment terms are long
- Personal guarantees: read the small print — they survive the company's death
Section 06
Business bank accounts
Even sole traders should separate personal and business finances — it makes bookkeeping dramatically simpler and is a legal requirement for limited companies. Digital-first options (Tide, Starling Business, Monzo Business, Mettle) open in minutes with a phone-based ID check. Traditional banks (HSBC, Barclays, Lloyds, NatWest) take 2–6 weeks but offer broader services, overdraft facilities, and access to small-business managers.
- Digital-first: free or £5–£10/month, instant setup, simple in-app accounting integrations
- Traditional banks: longer process, but offer lending, FX, and physical branches
- Avoid mixing personal and business — HMRC will want to see clean records
- Some accounts include free or discounted bookkeeping software
Section 07
Crowdfunding & community capital
Reward-based crowdfunding (Kickstarter, Indiegogo) works well for physical products with a story; supporters pre-order in exchange for the product itself. Equity crowdfunding (Crowdcube, Seedrs) lets you raise from hundreds of small investors under SEIS/EIS, often £100k–£1m. Community shares are an under-used UK model for pubs, shops and co-operatives that draws on local supporters. All three are marketing campaigns first, fundraising second.
Section 08
Cash flow: the silent killer
Most UK businesses don't fail because they're unprofitable — they fail because they run out of cash while waiting to be paid. Build a 12-month cash flow forecast before you need one. Invoice promptly, chase politely but firmly, and don't extend payment terms longer than you can comfortably wait. The single most useful number to know is your monthly burn — what leaves your account whether or not you sell anything.
At a glance
Funding options at a glance
| Source | Typical amount | Real cost | Speed | Best for |
|---|---|---|---|---|
| Bootstrapping | £0–£20k | Your savings | Immediate | Most first businesses |
| Start Up Loan | £500–£25k | 6% APR, 1–5 yrs | 4–8 weeks | Service businesses, low capex |
| Grants (Innovate UK) | £25k–£500k | Time + match funding | 3–6 months | R&D and innovation |
| Grants (local) | £1k–£10k | Application time | 1–3 months | Specific local schemes |
| Angel / SEIS | £100k–£250k | 10–20% equity | 6–9 months | High-growth, scalable |
| Seed VC / EIS | £500k–£2m | 20–30% equity + board seat | 6–12 months | Venture-style scaling |
| Bank loan | £10k–£250k | 8–12% APR + PG | 6–8 weeks | Established trading (12m+) |
| Crowdfunding | £10k–£500k+ | Platform fee + marketing | 2–4 months | Consumer products, community |
Common questions
Things people ask us
- How much should I raise?
- Enough to reach your next clear milestone with 6 months of buffer — not enough to coast indefinitely. Raising more than you need dilutes you unnecessarily and tends to fund the wrong activities. A common rule: 18 months of runway to the next provable inflection point in the business.
- Is a Start Up Loan or a credit card cheaper?
- A Start Up Loan at 6% is dramatically cheaper than even 0% credit cards once the introductory period ends (typically 18.9–24.9%). The Start Up Loan also comes with mentoring and a structured application that forces useful thinking. Use credit cards only for short-term timing differences you can clear within the month.
- What's Advance Assurance and why do I need it?
- HMRC Advance Assurance confirms in writing that your company qualifies for SEIS or EIS. Investors will almost always insist on seeing it before wiring funds — it's their guarantee they'll get the tax relief. Apply via gov.uk; turnaround is currently 4–6 weeks.
- When is the right time to talk to investors?
- When you have something to point to: a working prototype, early revenue, signed letters of intent, or a clear founder advantage in a measurable market. Raising on a slide deck alone is possible but harder, more dilutive, and takes longer.
- Will angels sign an NDA?
- Almost never. They see hundreds of pitches and an NDA on every one is unworkable. Reputable angels operate on relationships and reputation. If your idea only works because no one else knows it, the idea probably isn't as defensible as you think it is.
Checklist
Before you move on
- Built a 12-month cash flow forecast — including the worst-case scenario
- Opened a dedicated business bank account
- Identified which funding routes are genuinely a fit (not just available)
- If raising equity, taken legal advice and applied for SEIS/EIS Advance Assurance
- Set up bookkeeping software linked to your business account
- Read every personal guarantee clause before signing
Continue the guide
Next: Marketing