Financial planning of a business is the process of working out how much money your business needs, where it will come from, how it will be spent, and how you will check that it is working. In practice, it means setting financial goals, forecasting sales and costs, planning your cash flow, deciding how to fund the business, setting money aside for tax and risk, and reviewing your results every month.
You can build a simple plan in eight steps:
- Review where your finances stand today.
- Set clear, measurable financial goals.
- Forecast your sales.
- Calculate your costs.
- Build a cash flow forecast.
- Work out your funding needs.
- Plan for tax, risk and unexpected costs.
- Check actual results against the plan, then update it.
The rest of this guide explains each step in plain English, with UK tax figures, worked examples, charts and free tools. It is written for UK startup founders and small business owners.
Why Financial Planning Matters for UK Businesses
Many good business ideas fail because of money problems, not because of the idea itself. The Office for National Statistics (ONS) reports that only 38.4% of UK businesses born in 2019 were still trading five years later. In 2024, there were about 317,000 new UK businesses and about 280,000 closures.
Five-year survival of UK businesses born in 2019
Source: ONS, Business Demography, UK (published 20 November 2025).
A written financial plan will not guarantee survival, but it helps you spot problems early. It also helps you in these ways:
- Control cash: you know when money is arriving and when bills are due.
- Make better decisions: you can test a hire, a price change or a new product on paper first.
- Raise funding: lenders and investors expect a forecast before they lend or invest.
- Avoid tax surprises: you set money aside before the bill arrives.
Late payment is one of the biggest risks to UK cash flow. Research published by the Small Business Commissioner in 2025 puts the damage in clear numbers.
The cost of late payments in the UK
Source: Small Business Commissioner, Late Payments Research (31 July 2025). Bars are scaled within each measure, not across different units.
This is why a cash flow forecast sits at the centre of any good plan. A business that is profitable on paper can still run out of money if customers pay late.
Financial Planning vs Budgeting vs Forecasting vs Financial Management
People often use these four terms as if they mean the same thing. They do not. Think of financial planning as the big picture and the other three as parts of it.
| Term | What it means | Time period | Main activity |
|---|---|---|---|
| Financial planning | The overall roadmap for reaching your financial goals | 1 to 5 years | Goals, funding, forecasts, risk, tax |
| Budgeting | A set plan for income and spending | Usually 12 months | Allocating money to costs |
| Forecasting | An estimate of future sales, costs and cash | Monthly to 3 years | Predicting results using data and assumptions |
| Financial management | The day-to-day control of money | Ongoing | Bookkeeping, payments, reporting, monitoring |
A simple way to remember it: the plan says where you want to go, the budget says what you will spend to get there, the forecast says what you expect to happen, and financial management keeps you on track day to day.
What a Business Financial Plan Should Include
A complete plan has ten parts. You do not need to be an accountant to write each one.
| Component | What it tells you |
|---|---|
| Sales forecast | How much you expect to earn each month |
| Cost budget | What you expect to spend, split into fixed and variable costs |
| Cash flow forecast | When money actually comes in and goes out |
| Profit and loss statement | Whether you make a profit over a period |
| Balance sheet | What the business owns and owes on a set date |
| Funding plan | How much money you need and where it will come from |
| Break-even analysis | How much you must sell to cover your costs |
| Tax plan | How much to set aside and when to pay |
| Risk and reserve plan | How you will cope with shocks |
| Goals and KPIs | The numbers you will track to measure progress |
How to Create a Financial Plan for a Business: 8 Steps
The 8-step business financial planning process
Green steps are planning work. Orange steps keep the business funded and under control.
Step 1: Review Your Current Financial Position
Start with the facts. List your current income, monthly costs, savings, debts, and anything the business owns or owes. If you are a new business, list the money you plan to put in yourself. If you already trade, pull your last 12 months of bank statements and accounts.
Keep personal and business money separate from day one. A separate business bank account makes every later step easier and keeps your records clean for HMRC.
Step 2: Set Clear Financial Goals
Good goals are specific, measurable and have a deadline. “Make more money” is not a goal. These are:
- Short term (0 to 12 months): reach £8,000 in monthly sales and build a one-month cash reserve.
- Medium term (1 to 3 years): reach a 15% net profit margin and repay a start-up loan early.
- Long term (3 to 5 years): open a second location or launch a new product line.
Step 3: Forecast Your Sales
A sales forecast estimates how much you will earn each month. Use real evidence where you can: past sales, competitor prices, enquiry numbers, and the size of your local market. Account for seasonal swings, such as a quiet January for a restaurant or a busy December for a gift shop.
Be cautious. Write down your assumptions, such as “40 customers a week at £25 each”, so you can test and correct them later. If you are still looking for a business model, our guide to successful small business ideas in the UK shows what kinds of sales other new businesses aim for.
Step 4: Calculate Your Costs
Split your costs into two groups. This split drives most of the maths later in this guide.
| Cost type | What it is | Examples |
|---|---|---|
| Fixed costs | Stay the same whatever you sell | Rent, insurance, salaries, software subscriptions |
| Variable costs | Rise and fall with sales | Stock, materials, packaging, card fees, delivery |
| One-off costs | Paid once or rarely | Company registration, equipment, website build |
Add a contingency of 10% to 15% on top of your start-up costs. New businesses nearly always spend more than they expect. Card fees are an easy cost to miss, so compare options in our guide to the cheapest card payment machines in the UK before you commit.
The chart below is an illustrative budget for a small UK service or retail business. It is not a national average. Your own split will differ by industry.
Illustrative split of every £1 of sales
Example only. Not real data.
Step 5: Build a Cash Flow Forecast
A cash flow forecast shows when money actually moves in and out of your bank account. It is different from a profit forecast, because customers do not always pay on the day you invoice, and some bills are paid in lumps, like VAT or Corporation Tax.
Here is an illustrative three-month example. Notice that the business is making a profit overall but cash dips in month two because of a large supplier payment.
| £ | Month 1 | Month 2 | Month 3 |
|---|---|---|---|
| Opening cash | 10,000 | 11,000 | 7,500 |
| Cash in (customer payments) | 12,000 | 9,000 | 14,000 |
| Cash out (all bills and costs) | 11,000 | 12,500 | 11,500 |
| Closing cash | 11,000 | 7,500 | 10,000 |
Ways to protect your cash flow:
- Send invoices the same day the work is done, with clear payment terms.
- Chase overdue invoices quickly and politely.
- Ask for deposits on larger jobs.
- Negotiate longer payment terms with suppliers.
- Keep a reserve for slow months.
Step 6: Work Out Your Funding Needs
Add up your start-up costs and your worst expected cash dip. That total is the minimum you need. Then decide where it will come from. The options below are the most common in the UK.
| Option | How it works | Watch out for |
|---|---|---|
| Bootstrapping | Your own savings and profits | Do not risk money you cannot afford to lose |
| Bank loan or overdraft | Borrow and repay with interest | Usually needs a track record, accounts and sometimes security |
| Start Up Loans | Government-backed personal loan with mentoring through the British Business Bank | You need a business plan and cash flow forecast |
| Grants | Money you do not repay | Competitive and often limited to certain sectors or areas |
| Angel investors or venture capital | Cash in return for shares | You give up part of the ownership |
| Invoice finance | An advance against unpaid invoices | Fees reduce your margin |
If you need flexible borrowing for day-to-day cash gaps, read about the business line of credit options in the UK. Always model the repayments in your cash flow forecast before you sign anything.
For context, a 2025 survey by the US Federal Reserve found that 59% of small employer firms sought new financing in the past year, but only 41% of applicants received everything they asked for. That is US data, but it shows why you should apply with a clear plan and do not rely on a single lender.
Step 7: Plan for Tax, Risk and Unexpected Costs
Set aside money for tax every time you are paid, rather than hoping there will be enough later. Then build a reserve for shocks such as a lost customer, a broken machine or a slow season. A common rule of thumb is to hold three to six months of operating costs in cash. This is guidance, not a legal rule, and many young businesses start smaller. Even putting aside 5% of revenue is a useful beginning.
Insurance is part of risk planning too. Depending on what you do, you may need cover such as public liability insurance if customers or the public visit you, professional indemnity insurance if you give advice or services, or product liability insurance if you sell physical goods. Add the yearly premiums to your cost budget.
Step 8: Monitor, Review and Update the Plan
A plan only works if you check it. Each month, compare your actual sales and costs with your forecast. The gap is called a variance. If sales are 15% lower than planned, find out why, then update the forecast and decide what to change.
| How often | What to check |
|---|---|
| Monthly | Cash balance, sales, gross margin, running costs, overdue invoices, budget variance |
| Quarterly | Net profit margin, working capital, current ratio, forecast accuracy, reliance on your biggest customers |
| Yearly | Revenue growth, debt levels, tax provision, funding needs, next year’s goals |
Read more: 20 Successful Small Business Ideas in the UK for 2025
The Three Financial Statements Explained
Every business plan relies on three core reports. Each one answers a different question.
| Statement | Question it answers | What it shows |
|---|---|---|
| Profit and loss (income statement) | Did we make a profit? | Sales, costs and profit over a period |
| Balance sheet | What do we own and owe? | Assets, liabilities and owners’ equity on one date |
| Cash flow statement | Where did the cash go? | Cash from operations, investing and financing |
How the three statements connect
Sales minus costs gives net profit
Profit adds to retained earnings
Explains the change in the bank balance
Profit is not cash. Late-paying customers and large purchases can make the two very different.
Business Budgeting Methods: Which One Should You Use?
There is more than one way to build a budget. The right choice depends on how predictable your business is.
| Method | How it works | Best for | Drawback |
|---|---|---|---|
| Incremental | Last year’s budget plus or minus a percentage | Stable businesses with steady costs | Can carry over wasteful spending |
| Zero-based | Every cost must be justified from scratch | New businesses and cost-cutting | Takes more time |
| Rolling | Always looks 12 months ahead, updated monthly | Fast-changing or seasonal businesses | Needs regular updates |
| Activity-based | Costs are linked to what drives them | Production and fulfilment businesses | Needs reliable activity data |
Most start-ups do well with a zero-based budget in year one, then move to a rolling budget as they grow.
Key Financial Formulas With Worked Examples
| Metric | Formula |
|---|---|
| Gross profit margin | (Revenue − cost of goods sold) ÷ Revenue × 100 |
| Net profit margin | Net profit ÷ Revenue × 100 |
| Break-even units | Fixed costs ÷ (Selling price − Variable cost per unit) |
| Break-even revenue | Fixed costs ÷ Gross margin ratio |
| Working capital | Current assets − Current liabilities |
| Current ratio | Current assets ÷ Current liabilities |
| Debt-to-equity ratio | Total debt ÷ Shareholders’ equity |
| Cash runway | Cash balance ÷ Monthly net cash burn |
Break-Even Analysis Example
The break-even point is the level of sales where you make neither a profit nor a loss. Here is an illustrative example.
- Monthly fixed costs: £4,500
- Selling price per unit: £24
- Variable cost per unit: £9
- Contribution per unit: £24 − £9 = £15
- Break-even: £4,500 ÷ £15 = 300 units a month (about £7,200 in sales)
Every unit sold after the 300th adds £15 of profit. If you think you can only sell 250 units, the plan needs to change, either through a higher price, lower costs or a smaller fixed cost base.
Break-even chart (illustrative)
Illustrative figures: fixed costs £4,500, price £24, variable cost £9 per unit.
Cash Runway Example
Runway tells you how many months you can keep going before the cash runs out. Suppose a start-up has £90,000 in the bank and spends £15,000 a month more than it takes in. Runway is £90,000 ÷ £15,000 = 6 months. Ideally you start raising more money or cutting costs when runway falls below six to nine months, because fundraising takes time.
Working Capital Example
Working capital shows whether you can pay your short-term bills. If your current assets (cash, stock and money owed by customers) are £60,000 and your current liabilities (bills and short-term debts) are £35,000, your working capital is £25,000. Your current ratio is £60,000 ÷ £35,000 = 1.71. A ratio above 1 means you have more short-term assets than short-term debts. To improve it, collect invoices faster, hold less slow-selling stock, and agree longer terms with suppliers.
UK Tax and Compliance Planning
Tax is a cost, so it belongs in your plan. The details below were checked in October 2026. Always confirm them on GOV.UK before you rely on them, and speak to a qualified accountant for your own situation.
| Item | What to know |
|---|---|
| Corporation Tax (small profits rate) | 19% on profits of £50,000 or less |
| Corporation Tax (main rate) | 25% on profits over £250,000, with marginal relief between £50,000 and £250,000 |
| Corporation Tax payment deadline | Normally 9 months and 1 day after your accounting period ends |
| Company filings | Statutory accounts to Companies House and a Company Tax Return to HMRC |
| VAT | You must register once taxable sales pass the current threshold. Check the latest figure on GOV.UK |
| Sole traders | Pay Income Tax and National Insurance through Self Assessment |
| Business rates | May apply to business premises. Reliefs may be available for small businesses |
The Budget published on 28 October 2026 confirmed the intention to keep the 25% main rate and 19% small profits rate for the financial year starting 1 April 2028. Rules can still change, so check before each tax year.
A simple tax reserve habit: open a separate savings pot and move a fixed percentage of every payment into it. Ask your accountant which percentage is right for your business, and treat that money as untouchable.
Financial Planning by Business Stage
What you focus on changes as the business matures.
| Stage | Main financial focus | Key numbers |
|---|---|---|
| Startup | Prove the idea makes money, fund the launch, protect runway | Start-up costs, break-even point, cash runway |
| Growth | Fund stock, staff and equipment without running short of cash | Working capital, gross margin, forecast accuracy |
| Established | Improve profit, manage debt, decide how to use surplus cash | Net margin, debt-to-equity, cash conversion |
Many London founders begin with a lean plan and refine it as they meet investors and peers. You can find ideas and contacts through our list of London startup events, and see how others have launched in our look at new startups in London.
Financial Planning by Type of Business
| Business type | What drives the money | Biggest planning risk |
|---|---|---|
| Service | Staff time and how fully it is booked | Late client payments and unplanned extra work |
| Retail | Stock, supplier terms and seasons | Cash tied up in unsold stock |
| Manufacturing | Materials, equipment and long production cycles | Rising material prices and slow cash conversion |
| Online or e-commerce | Advertising cost per customer, returns and payment fees | Ad spend rising faster than sales |
| Software (SaaS) | Monthly subscriptions and customer churn | Burning cash before recurring revenue builds |
If you are planning an online shop, our step-by-step guide on how to start an e-commerce business covers the practical side that sits behind these numbers.
What Small Businesses Struggle With: The Data
UK-wide figures on specific money challenges are limited, so this chart uses the US Federal Reserve’s 2025 Small Business Credit Survey of more than 6,500 small employer firms. It is US data, but the pressures are familiar to UK owners.
Financial challenges reported by small firms (US, 2025)
Source: Federal Reserve Banks, 2025 Report on Employer Firms (Small Business Credit Survey). US data, shown for context.
The message is the same on both sides of the Atlantic: rising costs and uneven cash flow are the two things a plan must prepare for.
Common Financial Planning Mistakes to Avoid
- Mixing personal and business money. It makes records messy and tax harder.
- Confusing profit with cash. A profitable business can still run out of money.
- Underestimating costs. Add a contingency to every budget.
- Overestimating sales. Base forecasts on evidence, not hope.
- Ignoring tax. Set money aside as you earn it.
- Having no reserve. Even a small buffer helps in a slow month.
- Never updating the plan. An out-of-date forecast is worse than none.
- Not planning for late payers. Assume some customers will pay late.
- Borrowing without modelling repayments. Test the loan in your cash flow first.
- Ignoring working capital during growth. Growing fast can drain cash quickly.
Read also: How Do I Start a Taxi Business? A Step-by-Step Guide for Beginners
Best Financial Planning Tools and Software
You can start with a spreadsheet. As the business grows, accounting software saves time by linking to your bank and producing reports. Prices and free plans change often and vary by country, so check each vendor’s UK pricing page before you buy.
| Tool | Best for | Main features | Free option? |
|---|---|---|---|
| Excel or Google Sheets | Simple forecasts and early-stage plans | Fully flexible templates, formulas and charts | Google Sheets is free; Excel is paid |
| Xero | Small businesses wanting bank feeds and reports | Bank reconciliation, invoicing, reports, cash flow tools on higher plans | Free trial |
| QuickBooks Online | Businesses needing budgets and wider integrations | Budgets, profit and loss, balance sheet, receivables tracking | Free trial |
| FreeAgent | Freelancers and small UK companies | Invoicing, expenses, tax timeline, reports | Free trial |
| Sage | Growing businesses with more complex needs | Accounting and reporting | Free trial |
| FreshBooks | Service businesses and freelancers | Invoicing, time tracking, expense reports | Free trial |
| Wave | Very small businesses on a tight budget | Invoicing and basic bookkeeping | Yes, on its starter plan |
| Zoho Books | Small firms wanting a low-cost option | Accounting, invoicing, reports | Free plan reported; check availability |
If you are comparing card products or payment tools alongside your accounting software, our overview of fintech credit cards may help you weigh up the options.
Free Templates and Resources
You do not have to pay for a template. These trusted sources are free:
- British Business Bank: guidance on business plans, cash flow forecasts and Start Up Loans.
- GOV.UK and Business.gov.uk: tax, accounts and record-keeping guidance.
- ICAEW and ACCA: start-up guides from professional accountancy bodies.
- US Small Business Administration (SBA) and SCORE: free sample business plans and projection worksheets, useful if you want extra examples.
Whichever template you use, make sure it includes a 12-month cash flow forecast, a sales forecast, a cost budget, a profit and loss forecast, a funding summary and a place to record your assumptions.
A Real-Life Style Example: Riya’s Skincare Line
Riya wanted to start a handmade skincare line. Before leaving her job she paid off her debts and saved eight months of personal living costs. She built a simple budget, tested her product with early customers while still employed, and only then went full time. She prepared a 12-month forecast, showed an angel investor her break-even point, and secured funding. Within a year the brand was profitable. The lesson: preparation turned an idea into a business that investors could trust. This is an illustrative example.
Frequently Asked Questions
What is financial planning of a business?
It is the process of setting financial goals, forecasting sales, costs and cash, deciding how to fund the business, planning for tax and risk, and checking results regularly.
What are the main parts of a business financial plan?
The core parts are a sales forecast, a cost budget, a cash flow forecast, a profit and loss statement, a balance sheet, a funding plan, a break-even analysis, a tax plan, a risk reserve and a set of goals to track.
How do I create a financial plan for a small business?
Review your finances, set goals, forecast sales, calculate costs, build a cash flow forecast, work out funding, plan for tax and risk, then review the plan every month.
What is the difference between financial planning and budgeting?
Financial planning is the long-term roadmap. A budget is one part of it: a plan for income and spending, usually over 12 months.
How much cash reserve should a small business have?
A common rule of thumb is three to six months of operating costs. It is not a legal requirement. If that feels out of reach, start by saving a small percentage of revenue and build up gradually.
How do I calculate the break-even point?
Divide your fixed costs by the profit you make on each unit (selling price minus variable cost). With £4,500 fixed costs, a £24 price and £9 variable cost, you break even at 300 units a month.
Which financial statements does a business need?
Three: a profit and loss statement, a balance sheet and a cash flow statement. Limited companies must also file statutory accounts with Companies House.
How often should I review my financial plan?
Check cash and budget variances monthly, review key ratios and forecasts quarterly, and revisit strategy, tax and funding every year.
Conclusion
Financial planning of a business does not need to be complicated. Know where you stand, set goals, forecast sales and costs, watch your cash, plan your funding, set money aside for tax and surprises, and review the numbers every month. Businesses that do this spot problems early and make calmer, better-informed decisions. Start with a simple 12-month cash flow forecast this week, then build from there, and speak to a qualified accountant for advice that fits your situation.
Disclaimer
This article gives general information only. It is not financial, tax, legal or accounting advice. Tax rates, thresholds, software prices and funding rules change, so check GOV.UK, HMRC and the providers’ own websites, and speak to a qualified professional before making decisions.
Sources: ONS, Business Demography, UK (2025); Small Business Commissioner, Late Payments Research (2025); GOV.UK, Corporation Tax rates; Business.gov.uk, Understanding business taxes; Federal Reserve Banks, 2025 Report on Employer Firms.
