How to start a business

1. 01Test the ideaKnow who you are selling to, what problem you solve and whether the numbers can work.

   Start with the customer rather than the company name. Be specific about who has the problem, what they use today and why they would pay for a different answer.

   Turn the idea into a simple commercial sketch: expected sales, the major costs needed to deliver them and roughly how many sales cover those costs. It does not need to be a formal business plan, but it should expose assumptions that need testing.

   • Speak to potential customers before investing heavily.
   • Compare real alternatives, including doing nothing or solving the problem in-house.
   • Test a realistic price and the cost of delivering each sale.
   • Work out a basic break-even point and how long it could take to reach it.
2. 02Choose how you will tradeUnderstand whether sole trader, partnership or limited company is appropriate for what you are building.

   The structure changes the administration, tax treatment, legal liability and how money is taken from the business. There is no universally best option, and the right answer depends on the activity, risk, ownership and plans.

   • Sole trader: usually the simplest structure, but you and the business are not legally separate.
   • Partnership: two or more people share responsibility, profits and decisions; a clear written agreement is sensible.
   • Limited company: the company is a separate legal entity, with director responsibilities and more formal filing and record-keeping requirements.

   This guide provides general information, not personalised legal or tax advice. Take advice where the choice is material or the ownership and risk are more complex.

   Compare ways to set up a business on GOV.UK
3. 03Set the business up properlyGet the registrations, records and basic protections in place before avoidable problems appear.

   What you need to register depends on how you trade and what the business does. A limited company must be incorporated before it trades as a company; sole traders and partnerships have different HMRC requirements.

   Set up a reliable place for contracts, invoices, receipts and important company or tax records. Check whether the activity needs a licence, professional permission, data protection registration or appropriate insurance.

   • Complete the relevant Companies House and HMRC registrations.
   • Keep the records required for your chosen structure from the start.
   • Check licences, permissions and sector-specific rules before trading.
   • Arrange insurance that reflects the activity, premises, people and risks involved.

   Set up a limited company: GOV.UK step-by-step guideCheck business licences and permissions on GOV.UKCheck record-keeping requirements for self-employed businesses

   Registering for VAT?Read our step-by-step VAT registration guide
4. 04Separate the moneyKeep business money organised from day one.

   Use a dedicated business bank account where required or appropriate and avoid mixing personal spending with business transactions. A clean separation makes the position easier to understand and the records easier to maintain.

   Decide how you will issue invoices, receive payment, approve spending and capture expenses. Add a simple weekly cash routine: check what is due in, what needs paying and what the bank balance must cover next.

   • Give every customer a clear invoice and payment date.
   • Keep evidence for business expenses as they happen.
   • Do not treat the bank balance as the same thing as available profit.
   • Put money aside for tax and other known commitments.

   Review limited-company accounting and banking records on GOV.UK
5. 05Get the books in orderGood bookkeeping gives you control and makes everything from tax to cash flow easier.

   Choose bookkeeping software that fits the business and connect bank feeds where appropriate. Keep sales invoices, supplier invoices, expenses and reconciliations current instead of reconstructing the year months later.

   A dependable bookkeeping rhythm gives tax returns and annual accounts a better starting point, but it also does something more immediate: it tells you what has been earned, spent, paid and still needs attention.

   • Reconcile bank and card accounts regularly.
   • Capture sales, supplier invoices and expenses consistently.
   • Review overdue customer balances and unresolved supplier queries.
   • Close each month while the transactions are still familiar.

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   Accounts Payable

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   Explore bookkeeping and accounts payable support
6. 06Understand your numbersKnow your costs, pricing, margin and cash position before decisions become expensive.

   Start with the few numbers that explain how the business works: sales, direct costs, gross margin where relevant, overheads, break-even and cash. Profit describes performance over a period; cash shows what is actually available at a point in time. A business can run short of cash while reporting a profit.

   Build a simple budget around sensible sales and cost assumptions, then compare what actually happens with the plan. A founder does not need a 40-tab model on day one. A simple, useful budget is better than false precision.

   • Know the contribution or margin earned from a typical sale.
   • Separate fixed overheads from costs that move with activity.
   • Review actual performance against the budget and investigate material differences.
   • Look forward as well as back: cash timing matters as much as reported profit.

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   Explore monthly management reportingExplore practical budgeting and forecasting
7. 07Plan for growthThink about hiring, funding, systems and cash before growth puts pressure on the business.

   Growth often uses cash before it creates cash. A first hire, larger supplier commitment or longer customer payment term can create a funding gap even when the opportunity is attractive.

   Forecast the timing and downside before committing. Consider when VAT, payroll, PAYE, pensions or more formal finance processes become relevant, and make sure ownership of the underlying work is clear.

   • Model the full cost and cash timing of the first hires.
   • Understand customer payment terms and supplier commitments.
   • Forecast working-capital needs before accepting faster growth.
   • Define the funding requirement before approaching a provider.
   • Add controls and reporting as the team and decisions become more complex.

   Explore 13-week cash-flow forecastingExplore funding readiness and advisory supportCheck employer and PAYE responsibilities on GOV.UKCheck Employers’ Liability insurance requirements on GOV.UK

   Hiring your first employee?Read our guide to registering for PAYE

This page is general guidance for people starting a UK business. Legal, tax, regulatory and insurance requirements depend on your circumstances and can change; use the linked official guidance and take tailored advice where needed.