Skip to main content
UK Startup

Guide · Funding & finance

Money to start, money to grow — and what each kind really costs.

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.

A leather coin pouch spilling gold coins beside a small terracotta pot with a sprouting plant

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)

Start Up Loans are personal loans for business purposes, not business loans. For current applications, eligible people starting a business or trading for up to 60 months can apply for £500 to £25,000 at 7.5% per year, fixed, repayable over 1 to 5 years. Personal credit, affordability and business-plan checks apply; approved borrowers are offered 12 months of mentoring. Loans issued under historic terms retain their own rate.

  • Available to UK residents aged 18+
  • Current rate: 7.5% fixed per year; historic loans keep their agreement rate
  • Multiple partners may each apply, up to £25,000 per person and £100,000 per business, subject to scheme rules
  • A business plan, cash flow forecast, personal credit and affordability assessment are part of the process
  • Successful applicants are offered 12 months of mentoring

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

SourceTypical amountReal costSpeedBest for
Bootstrapping£0–£20kYour savingsImmediateMost first businesses
Start Up Loan£500–£25k7.5% fixed, 1–5 yrs4–8 weeksService businesses, low capex
Grants (Innovate UK)£25k–£500kTime + match funding3–6 monthsR&D and innovation
Grants (local)£1k–£10kApplication time1–3 monthsSpecific local schemes
Angel / SEIS£100k–£250k10–20% equity6–9 monthsHigh-growth, scalable
Seed VC / EIS£500k–£2m20–30% equity + board seat6–12 monthsVenture-style scaling
Bank loan£10k–£250k8–12% APR + PG6–8 weeksEstablished trading (12m+)
Crowdfunding£10k–£500k+Platform fee + marketing2–4 monthsConsumer 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?
For current applications, a Start Up Loan has a 7.5% fixed annual rate and a term of one to five years. Compare its total repayment, personal liability, eligibility checks and your own cash-flow plan with any alternative finance; a lower headline rate does not by itself make a product suitable.
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

Keep building

Useful next steps

Continue the guide

Next: Marketing