London / BUSINESS & MONEY

Build and earn in London

Startups, financial careers, interest rates, salaries and the economics behind city decisions.

LIVING IN LONDON

Cost of living

Build a budget around the costs that shape everything else.

THE LONNOW GUIDE

Build the business around customers and obligations

Starting a London business involves two different jobs: finding something customers will pay for and choosing how to operate it responsibly. A company name, a pitch deck and an address cannot do either job on their own.

What decision are you actually making?

An editorial decision guide, not a ranking. Choose the option that fits your circumstances, then check the relevant official information before committing.

What decision are you actually making?: options and trade-offs
DecisionEvidence to collectCommon confusion to avoid
Whether the idea solves a problemA customer’s need and a credible delivery testInterest is not the same as an agreed purchase
Sole trader or limited companyLiability, ownership and record-keeping requirementsA more formal name does not remove obligations
How to organise the first yearCash timing, invoices, costs and responsibilitiesTurnover is not the same as available personal income
Whether finance fits the planThe actual repayment and security termsBank Rate is not automatically your contract rate

Source notes: GOV.UK: setting up a business · GOV.UK: becoming a sole trader · GOV.UK: private limited companies · Bank of England: interest rates and Bank Rate

Test the commercial question before expanding the setup

Define one customer, one problem and the alternative that customer uses now. A practical first test might be a clearly scoped service proposal or a demonstration of a product, with an honest description of what exists and what does not. Record the response: what the customer understood, what they would need before buying and which part of the offer was unclear. Compliments and social-media interest are not the same evidence as a workable order.

Then sketch the cash cycle. When will you pay suppliers, deliver the work and receive the money? An order that looks profitable can still leave a gap if you must fund materials or substantial work before payment. Keep a modest first-year plan with separate assumptions for sales, operating costs and personal living costs. This is an editorial planning framework, not a prediction of your revenue or a recommendation to borrow.

Continue with Plan a London startup.

Choose a structure for responsibility, not appearance

GOV.UK describes a sole trader and a limited company as different ways of operating a business. A sole trader is personally responsible for business debts. A limited company is a separate legal entity, with directors responsible for running it and meeting its obligations. Neither description means every business faces identical risks, nor that forming a company removes every possible personal exposure.

Make the comparison with the work you intend to do: clients, partners, investment, record keeping and the help you will need. If you choose a limited company, its money is not simply your personal spending account; the official guidance explains that taking money out is governed by rules. Professional advice is particularly useful when ownership, liability or tax treatment is central to the decision.

Continue with Understand the startup decisions.

Source notes: GOV.UK: setting up a business · GOV.UK: becoming a sole trader · GOV.UK: private limited companies

Set up records before the work becomes busy

For a sole trader, the government guidance starts business records when trading starts; registration and tax obligations depend on the relevant rules and circumstances. A limited company has its own company and accounting records, filings and tax responsibilities. Keep invoices, expenses and agreed customer terms in a system you can actually maintain. Handing records to an accountant does not remove a director’s legal responsibility for the company.

Map additional obligations from the activity rather than the business name: premises, licences, insurance, selling online and handling personal information can introduce further requirements. A food stall, an online consultancy and a business with employees should not be treated as one standard setup checklist. If you are moving to the UK, do not use incorporation paperwork as proof of your personal permission to work here.

Continue with Separate immigration questions · Explore the London technology ecosystem.

Source notes: GOV.UK: becoming a sole trader · GOV.UK: private limited companies

Read finance news through the actual agreement

Bank Rate influences the wider borrowing and savings environment, but a headline change is not the same as the interest rate written into your business’s own facility. When assessing finance, put the repayment schedule, fees, security and any personal guarantee beside the proposed use of the money. Consider what happens if a customer pays late or a projected sale never arrives.

For a founder’s personal budget, keep salary, housing and commuting comparisons separate from company turnover. A business can have sales without enough spare cash to support the owner at the level they hoped. Our Bank Rate and salary explainers provide context; they are not a substitute for the terms of a particular product or individual financial advice.

Continue with Understand Bank Rate · Compare personal salary needs.

Source notes: Bank of England: interest rates and Bank Rate

Useful questions before you decide

Does appointing an accountant remove a director’s responsibility?

No. GOV.UK explains that a director remains legally responsible for the company’s records, accounts and performance even when someone else helps with them. Agree who prepares information and who checks the filings.

Source notes: GOV.UK: private limited companies

Is a limited company always the better starting point?

There is no universal answer. The government comparison distinguishes liability, finances and record keeping. Choose against the needs and risks of the actual activity rather than treating incorporation as a measure of commercial progress.

Source notes: GOV.UK: setting up a business

Background guide updated 16 October 2026 (London time).

Sources for this guide section checked 16 October 2026 (London time). These checks apply to this section; linked guides retain their own review dates. Prices, rules, availability and access can change.

Sources and what they support
  1. GOV.UK: setting up a business

    Structure comparison and activity-dependent legal/tax responsibilities. Checked 16 October 2026.

  2. GOV.UK: becoming a sole trader

    Personal debt responsibility, records when trading begins and activity-specific obligations; no threshold quoted. Checked 16 October 2026.

  3. GOV.UK: private limited companies

    Separate legal entity, director responsibility, records, filings and money taken out. Checked 16 October 2026.

  4. Bank of England: interest rates and Bank Rate

    Transmission to lending/savings context; no current Bank Rate or forecast quoted. Checked 16 October 2026.

Plan your visit
SMART GUIDE FINDER

A guide that fits your plan.

Choose what you need. Every recommendation comes from a current LONNOW guide in this section.

BEST MATCHESStart fast

The clearest short route · reading time shown on every result

  1. 011 MIN · CHECKED 21 Oct 2026Companies House identity checks: distinguish verification from incorporationAn identity check, a company registration and…Read the guide
  2. 021 MIN · BUSINESS & MONEYBank of England interest ratesWhat Bank Rate changes—and what it does not.Read the guide
  3. 031 MIN · BUSINESS & MONEYStarting a business in LondonChoose a structure, register correctly and se…Read the guide
BEST MATCHESPlan a day

Routes, timings and practical stops · reading time shown on every result

  1. 012 MIN · BUSINESS & MONEYLondon salary planningCompare take-home pay with housing and commut…Read the guide
  2. 021 MIN · CHECKED 21 Oct 2026Companies House identity checks: distinguish verification from incorporationAn identity check, a company registration and…Read the guide
  3. 031 MIN · BUSINESS & MONEYBank of England interest ratesWhat Bank Rate changes—and what it does not.Read the guide
BEST MATCHESCompare options

Rankings, costs and trade-offs · reading time shown on every result

  1. 012 MIN · BUSINESS & MONEYLondon salary planningCompare take-home pay with housing and commut…Read the guide
  2. 022 MIN · BUSINESS & MONEYCost of livingBuild a budget around the costs that shape ev…Read the guide
  3. 031 MIN · CHECKED 21 Oct 2026Companies House identity checks: distinguish verification from incorporationAn identity check, a company registration and…Read the guide
BEST MATCHESGo deeper

The most detailed explainers · reading time shown on every result

  1. 012 MIN · BUSINESS & MONEYCost of livingBuild a budget around the costs that shape ev…Read the guide
  2. 022 MIN · BUSINESS & MONEYStart a business in LondonValidate demand, choose a structure and build…Read the guide
  3. 032 MIN · BUSINESS & MONEYLondon finance careersRoles, regulation, qualifications and a focus…Read the guide

More business & money guides

Read the number in context

Business and money decisions need a date, definition and source. These guides connect London careers, startups, household finance and economic signals without pretending that one number answers every case. Confirm regulated or financial decisions with the relevant official body or qualified adviser.

  • Source and date
  • Meaningful comparison
  • Risk and next action
PASS IT ONShare this collection
Other ways