Chapter 16: Growing Your Business -- What Comes Next

Tax year notice: This guide uses 2025/26 tax year figures (6 April 2025 -- 5 April 2026). Check gov.uk for the latest rates.

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You don't need an accountant for bookkeeping

Let's settle this debate.

You do NOT need an accountant to:

• Record daily transactions
• Categorise expenses
• Reconcile your bank
• Run monthly reports
• Send invoices
• Track who owes you money

This is bookkeeping. Your accounting software (and you) can handle it. Paying an accountant 40--60/hour to categorise your coffee shop receipts is a waste of their expertise and your money.

You DO need an accountant to:

• Prepare and file your Corporation Tax return (CT600)
• Prepare annual accounts for Companies House
• Advise on tax planning (salary vs dividends, pension contributions, year-end strategies)
• Handle HMRC investigations or enquiries
• Advise on business structure changes (sole trader to Ltd, adding shareholders)
• Navigate complex VAT situations
• Plan for growth, investment, or exit

The sweet spot: you do the daily bookkeeping, keep clean records, and hand your accountant a neat set of books at year-end. They do the strategic work. This typically costs 800--2,000/year for a small limited company, versus 3,000--5,000 if they're also doing your bookkeeping.

When to get an accountant

Sole trader, under 30,000 profit: You probably don't need one yet. Self Assessment is manageable with good software. Consider one-off advice sessions rather than an ongoing engagement.

Sole trader, 30,000--50,000 profit: Worth a conversation. They can tell you whether incorporation would save you money and handle the Self Assessment.

Limited company, any size: Almost always worth it. The CT600 and annual accounts are complex enough that an accountant pays for themselves in time saved and mistakes avoided.

Any stage, complex situation: Multiple income sources, property rental, international sales, employees, HMRC investigation -- get professional help.

Corporation Tax planning

Once you're running a limited company, there are legitimate strategies to reduce your Corporation Tax bill:

Pension contributions: Company contributions to your pension are a deductible business expense. You can contribute up to 60,000/year (Annual Allowance) without personal tax. The company gets Corporation Tax relief, and you get tax-free pension growth.

Salary timing: Paying a bonus before year-end reduces this year's Corporation Tax bill. Deferring it to next year shifts the liability.

Capital allowances: Buying equipment before year-end lets you claim the Annual Investment Allowance immediately, reducing taxable profit.

R&D Tax Credits: If your business spends money on innovation -- developing new processes, products, or technical solutions -- you may be able to claim enhanced deductions. Small companies can claim up to 186% of qualifying R&D expenditure as a deduction. This is complex and worth specialist advice if it applies.

Warning: Tax avoidance (legal -- using the rules to minimise tax) is different from tax evasion (illegal -- hiding income or fabricating expenses). Everything in this guide is avoidance -- using the system as intended. Never fabricate expenses, hide income, or create false invoices.

Financial ratios: Checking your health

As your business grows, raw numbers become less useful than ratios. These four tell you the most:

1. Gross margin

• Formula: (Revenue - Cost of Goods Sold) / Revenue x 100
• What it tells you: How much you keep after direct costs. Is your pricing right?
• Sam's gross margin: 78,000 / 120,000 = 65% (good for retail)
• Steve's gross margin: 69,600 / 78,000 = 89% (typical for services)

2. Net margin

• Formula: Net Profit / Revenue x 100
• What it tells you: How much you keep after ALL costs. Is the business efficient?
• Sam: 18,680 / 120,000 = 15.6%
• Steve: 30,777 / 78,000 = 39.5%

3. Current ratio

• Formula: Current Assets / Current Liabilities
• What it tells you: Can you pay your bills? Above 1.0 is solvent. Above 1.5 is comfortable.
• Sam: 25,700 / 11,682 = 2.2 (healthy)

4. Debtor days

• Formula: (Trade Debtors / Revenue) x 365
• What it tells you: How long customers take to pay, on average
• Sam: (4,800 / 120,000) x 365 = 14.6 days (good)

Track these quarterly. If gross margin drops, your costs are rising or your pricing is wrong. If debtor days increase, customers are paying slower and your cash flow is at risk.

The annual planning cycle

Successful growing businesses don't just react -- they plan. Here's a simple annual cycle:

Month 1 (April): Review and plan

• Review last year's financial statements
• Set revenue and profit targets for the new year
• Plan any major purchases (claim capital allowances)
• Review salary vs dividend strategy with your accountant

Quarterly: Check and adjust

• Review P&L against budget
• File VAT return
• Submit MTD quarterly update
• Check cash flow -- enough to cover the next quarter?
• Review debtor days -- chase late payers

Month 9 (December): Year-end preparation

• Review profit forecast -- any tax planning actions before year-end?
• Consider pension contributions to reduce Corporation Tax
• Ensure all invoices are issued and expenses captured
• Stock take (for product businesses like Sam's)

Month 10--12 (January--March): File and pay

• Accountant prepares annual accounts and CT600
• Pay Corporation Tax (9 months and 1 day after year end)
• File personal Self Assessment (31 January)
• File Confirmation Statement with Companies House

What changes at scale

As Sam and Steve grow, new challenges and opportunities appear:

Milestone	What changes
2--3 employees	Need formal HR processes, contracts, handbook. Consider HR software.
100,000+ turnover	VAT-registered (if not already). More complex quarterly reporting.
Multiple products/services	Need cost tracking per product line or service type to understand what's profitable.
250,000+ turnover	Consider separate accounting software tiers. May need management accounts monthly.
500,000+ turnover	Corporation Tax at the main rate (25%) applies above 250,000 profit. Need more sophisticated cash flow management.
1 million+ turnover	May need a part-time or full-time bookkeeper/finance manager. Audit may be required depending on Balance Sheet and employee count.

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Real Scenario: Where Sam and Steve end up

Sam's Vintage Ltd -- End of Year 3:

• Revenue: 320,000
• 4 employees (warehouse team, a buyer, a marketing assistant)
• Net profit: 52,000
• VAT-registered, filing quarterly MTD returns
• Sam takes 12,570 salary + 35,000 dividends = 47,570 personal income
• Company retains profits for stock investment and a potential physical retail unit

Sam now spends 15 minutes daily on bookkeeping (reviewing bank feed transactions), 30 minutes monthly on financial review, and hands clean books to the accountant quarterly.

Steve's Garden Services Ltd -- End of Year 3:

• Revenue: 240,000
• 3 gardeners plus a part-time office manager
• Net profit: 68,000
• VAT-registered
• Steve takes 12,570 salary + 40,000 dividends = 52,570 personal income
• Considering a second van and two more gardeners for the next season

Steve incorporated in Year 2 when profits consistently exceeded 50,000. The accountant handles payroll for the team and year-end accounts. Steve focuses on clients, quoting, and managing the crew.

Both started with no financial knowledge. Sam didn't know what a tax code was. Steve kept receipts in a carrier bag. Now they run profitable, compliant businesses with clear financial visibility.

The guide started with one rule: Money in. Money out. Know the difference. Everything else has been layers on top of that. Tax bands, double-entry, VAT returns, financial statements -- they're all ways of understanding where money comes from, where it goes, and what you keep.

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Decision Tree: Do I need an accountant?

• Sole trader, under 30k profit, simple setup? -- Probably not yet. Use good software and file Self Assessment yourself.
• Sole trader, over 30k profit? -- Worth a one-off consultation. Ask whether incorporation would save you money.
• Limited company? -- Yes, for CT600 and annual accounts at minimum. Find one who specialises in small companies.
• Employees? -- Strongly recommended. Payroll errors and employment law are costly to get wrong.
• HMRC investigation or complex situation? -- Essential. Don't deal with HMRC alone.

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Checklist: Annual business health check

• Review last year's P&L -- are margins improving or declining?
• Check your Balance Sheet -- are assets growing, or are liabilities creeping up?
• Calculate your key ratios (gross margin, net margin, current ratio, debtor days)
• Review your salary vs dividend strategy with your accountant
• Check Corporation Tax thresholds -- are you approaching the next band?
• Consider pension contributions for tax efficiency
• Review insurance coverage -- is it still adequate?
• Update your business plan or budget for the coming year
• File Confirmation Statement with Companies House
• Ensure all employees are re-enrolled in pension scheme (every 3 years)

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Jargon Buster

Term	Plain English
Management accounts	Monthly or quarterly financial reports used internally to track business performance (not filed with HMRC or Companies House)
Gross margin	Gross profit as a percentage of revenue -- shows what you keep after direct costs
Net margin	Net profit as a percentage of revenue -- shows what you keep after ALL costs
Current ratio	Current assets divided by current liabilities -- shows whether you can pay short-term bills
Debtor days	Average number of days customers take to pay you
R&D Tax Credits	A government scheme allowing companies to claim extra tax relief on spending that qualifies as research and development
Annual Investment Allowance (AIA)	The amount of capital spending you can deduct from profits in one year (currently up to 1 million)
Marginal Relief	A Corporation Tax reduction for companies with profits between 50,000 and 250,000
Audit	An independent review of your accounts, required by law for larger companies