Starting a business involves testing a commercial idea and setting up the records, agreements and controls needed to operate it. The exact requirements depend on what the business does, its legal structure, where it operates and whether it employs people or sells to consumers.

Use this guide as a planning checklist rather than a complete statement of every legal or tax obligation.

Test demand and define the offer

Identify the customer problem you intend to solve and why a customer would choose your offer. Speak to potential customers, observe how they buy today and test the smallest practical version before committing to major fixed costs.

Record what you have learned about:

  • the customer and the need they are trying to meet;
  • competing products or services;
  • the price customers expect and the alternatives they compare;
  • how customers prefer to buy; and
  • objections, seasonal patterns or other barriers to demand.

Interest is not the same as a sale. Where practical, test behaviour through a paid pilot, small order, booking or other clear commitment. Do not describe unconfirmed interest as contracted revenue in a business plan or funding application.

Build a practical plan and cash-flow forecast

A useful business plan explains the offer, market, operations, people, risks and financial assumptions. It should be updated as evidence changes rather than treated as a one-off document.

List startup costs such as equipment, stock, premises, professional fees, insurance, licences, software, marketing and deposits. Then estimate continuing costs and when they fall due. Prepare a cash-flow forecast based on the timing of receipts and payments, not only when sales are invoiced.

The Government’s funding-preparation guidance describes how a business plan and cash-flow forecast help explain the objectives, market, operations and periods of possible cash shortage.

Test a downside case: slower sales, later customer payments or higher costs. Decide what action you would take before cash runs short.

Choose a business structure

Common structures include sole trader, ordinary partnership, limited liability partnership and limited company. The choice affects responsibility for debts, tax, administration, ownership and how money can be raised or taken from the business.

GOV.UK’s business structure guide explains that a sole trader is personally responsible for business debts, while a limited company is legally separate from its owners and is run by its directors. In an ordinary business partnership, partners personally share responsibility for the business, subject to the detailed rules and their agreements.

Choose on the facts rather than assuming one structure always produces less tax or risk. Consider expected profit, investment plans, personal exposure, administrative cost, succession and the relationship between owners. Obtain accounting and legal advice where those consequences are material.

Complete the right registrations

Registration depends on the structure and activities:

  • a limited company must be incorporated at Companies House before it trades as that company;
  • a sole trader may need to register for Self Assessment under the applicable HMRC rules;
  • an ordinary partnership must choose a nominated partner and register the partnership with HMRC; and
  • VAT, PAYE and other tax registrations apply when their particular conditions are met.

Thresholds and digital-reporting rules can change, so check the current GOV.UK and HMRC guidance rather than relying on a figure copied into a business plan. Keep confirmation of registrations, reference numbers and filing dates in a secure compliance calendar.

Set up records from the first transaction

Choose an accounting process before invoices and receipts accumulate. Keep business transactions identifiable and retain the evidence needed to explain income, costs, assets, liabilities and tax calculations.

HMRC’s self-employed record guidance requires records of sales and income, business expenses and, where applicable, VAT and PAYE. Limited companies have separate company and accounting record requirements, including records needed for annual accounts and the Company Tax Return.

Use a dedicated business bank account where the structure requires it or where it will make records clearer. Reconcile the bank balance regularly, review amounts owed by customers and set money aside for tax rather than treating it as available profit.

Check insurance, licences and permissions

Map the risks created by the premises, products, advice, vehicles, data, staff and contractual commitments. Ask an authorised insurer or broker which cover is suitable and read exclusions and limits rather than assuming a policy covers every activity.

Employers’ Liability insurance is generally compulsory when a business becomes an employer, although the rules include exceptions. Check the current GOV.UK Employers’ Liability guidance for the business’s circumstances. Other cover, such as public liability, professional indemnity, product liability, cyber or business interruption insurance, depends on the activity, contracts and risk exposure.

Some activities, premises and occupations need a licence, permit, registration or professional authorisation. Search the GOV.UK licence finder, check the relevant local authority and regulator, and consider requirements in each UK nation or overseas market where the business operates.

Put suitable contracts in place

Written agreements should identify the parties, scope, price, payment terms, responsibilities, delivery or acceptance process, ownership of work, confidentiality, liability, termination and dispute arrangements as relevant.

The rules differ between business-to-business and consumer transactions and can also depend on how a sale is made. The Competition and Markets Authority’s consumer contract guidance explains that terms used with consumers must be fair and transparent. Obtain legal advice for important, unusual or high-value contracts and for terms used across several jurisdictions.

If there is more than one owner, document decision-making, contributions, profit or dividend expectations, departures, incapacity and disputes in an appropriate partnership, shareholders’ or operating agreement.

Price for a sustainable business

Calculate the direct cost of providing each product or service and a fair share of overheads, owner time, tax obligations, finance costs, rework and bad-debt risk. Compare this with the value to the customer and credible market evidence.

Forecast the number of sales needed to cover fixed costs, but do not assume every available hour or unit can be sold. Include time for administration, marketing, holidays and delays. State clearly whether quoted prices include taxes or delivery charges where applicable, and review prices when costs or the offer change.

Acquire customers responsibly

Choose a small number of channels that match how the intended customer buys. These might include direct relationships, partnerships, referrals, search, events or paid advertising. Define what will be measured before spending: enquiries, suitable opportunities, completed sales, repeat business and the full cost of acquisition.

Make marketing claims accurate and supportable. Obtain permission and complete the necessary privacy and electronic-marketing assessment before using personal data for campaigns. Keep the customer experience, response capacity and contractual terms aligned with what the marketing promises.

Know when to seek help

Professional advice is particularly important when:

  • selecting a structure with significant tax, liability or ownership consequences;
  • taking on employees or deciding employment status;
  • signing a lease, franchise, finance agreement or personal guarantee;
  • issuing shares or bringing in another owner;
  • operating in a licensed or regulated activity;
  • using complex consumer, data or intellectual-property terms; or
  • trading across borders.

For help with business planning, accounting records, cash-flow forecasts and tax considerations, contact HA & CO. Legal, regulatory, insurance and regulated-finance questions should be taken to an appropriately qualified adviser.

Official guidance used