Practical UK accounting guidance
Small Business Accounting FAQs
Get clear answers about accountant fees, bookkeeping, payroll, VAT, Self Assessment and running a UK business. Each answer links to a more detailed guide or the service that can help you take the next step.
01
Choosing an Accountant and Understanding Fees
Answers for businesses comparing support, scope and cost.
Fees
How much does an accountant cost in London?
Accountant fees depend on business type, transaction volume, VAT or payroll needs, reporting frequency and how complete your records are. Compare quotes by the work included, response support and likely extras—not the headline price alone. Path’s pricing page shows the available packages and the cost guide explains the main fee drivers.
Decision
Do I need an accountant, or can I manage the accounts myself?
Simple records can sometimes be managed using accounting software, but responsibility for accurate returns and deadlines still remains with the business. Professional help becomes more valuable when VAT, payroll, a limited company, unclear expenses, late records or growth add complexity. Compare the time, risk and support included before deciding.
What is included
What can a small business accountant help with?
Support can include bookkeeping oversight, annual accounts, Corporation Tax, Self Assessment, VAT, payroll and practical guidance based on your figures. The exact scope should be agreed before work begins. A useful proposal clearly states the filings, reporting, software support, contact arrangements and additional work covered by the fee.
When to get help
What are the signs that my business needs an accountant?
Common warning signs include records falling behind, missed or confusing deadlines, uncertainty about allowable expenses, weak cash-flow visibility, VAT or payroll complications, and major decisions being made without reliable figures. Getting help earlier usually gives the accountant more time to correct records and plan before a filing date.
02
Bookkeeping and Accounting Software
Practical answers about records, software, catch-up work and fees.
Bookkeeping fees
How much does bookkeeping cost for a small business?
Bookkeeping cost usually reflects monthly transaction volume, bank and payment accounts, VAT status, payroll links, reporting needs and the condition of existing records. Regular, organised bookkeeping is normally easier to price than a backlog. Ask whether reconciliations, VAT support, software and management reports are included before comparing providers.
Records
What bookkeeping records should a small business keep?
Keep evidence of sales, purchases, business expenses, bank activity, payroll, VAT and money introduced to or taken from the business. Limited companies and sole traders have different record-retention rules, so the correct period depends on your structure and circumstances. Digital records should be complete, readable and easy to reconcile.
Catch-up work
Can an accountant catch up overdue or messy bookkeeping?
Yes, but the first step is to establish which periods are incomplete, what records exist, whether bank balances reconcile and which filing deadlines are affected. A catch-up plan may involve collecting missing documents, correcting transaction coding and rebuilding reconciliations before current work can continue accurately. Scope and timing depend on the backlog.
Software
What is the best accounting software for a sole trader?
The best choice depends on turnover, VAT status, transaction volume, invoicing needs, bank-feed support, mobile receipt capture and whether an accountant will use the same system. Compare the workflow you actually need rather than buying the longest feature list. Confirm that the software supports your current and expected HMRC obligations.
03
Self Assessment and Business Tax
Answers about registration, deadlines, forms, expenses and structure.
Registration
Do I need to register for Self Assessment?
You may need Self Assessment if you are self-employed, receive untaxed income, are in a partnership, have certain gains or HMRC asks you to file. The correct answer depends on the type and amount of income and available allowances. Check the current HMRC criteria, then register by the applicable deadline if required.
Deadline
When is the Self Assessment tax return deadline?
For most taxpayers, an online Self Assessment return and any balancing payment are due by 31 January after the tax year ends. Paper returns normally have an earlier deadline. Registration and payments on account have separate dates. Start before January so there is time to collect records, resolve gaps and calculate the liability accurately.
Tax payments
What are Self Assessment payments on account?
Payments on account are advance payments towards the next Self Assessment bill and are normally due in two instalments, on 31 January and 31 July. They are based on the previous year’s qualifying liability. A reduction may be possible when the new liability is genuinely expected to be lower, but an excessive reduction can create interest.
Expenses
What expenses can I claim when I am self-employed?
An expense generally needs to be allowable under the tax rules and supported by suitable records. Common categories can include business premises, travel, equipment, professional costs and a business proportion of mixed-use expenses, but exclusions and special rules apply. Do not assume that every payment from a business account is tax-deductible.
HMRC forms
What are SA100 and SA302 documents?
SA100 is the main Self Assessment tax return form. An SA302 is a tax calculation showing how the Self Assessment liability was worked out for a tax year. The documents serve different purposes, and lenders or other organisations may also request a tax-year overview. Use the dedicated guides to identify the document you need.
Business structure
Should I operate as a sole trader or a limited company?
The right structure depends on expected profit, risk, administration, how money will be withdrawn, commercial needs and future plans. A limited company is legally separate from its owner and carries additional filing duties; a sole-trader structure is simpler but offers different liability and tax treatment. Compare the full position before changing.
04
Payroll and Employer Responsibilities
Answers about PAYE, outsourcing and key payroll documents.
PAYE
What is PAYE and when must employers report payroll?
PAYE is the system employers use to deduct Income Tax and usually National Insurance through payroll. Employers who run payroll normally report employee pay and deductions to HMRC on or before each payday using Real Time Information. Registration, software, starter details and accurate payroll records should be in place before the first pay run.
Outsourcing
Should a small business outsource payroll?
Outsourcing can suit businesses that want help with calculations, payslips, submissions, payroll records and routine deadline management. Running payroll internally may work when the process is simple and a trained person has enough time to maintain it. Compare employee count, pay frequency, pensions, benefits, software and resilience during staff absence.
Payroll reference
What is a payroll number and where can an employee find it?
A payroll number is an internal identifier an employer may use to distinguish an employee in its payroll system. It is not the same as a National Insurance number or the employer’s PAYE references. It commonly appears on a payslip, but formats vary. Ask the employer or payroll team if it cannot be located.
Leaving employment
What is a P45 and what should an employee do with it?
A P45 records pay and tax details when employment ends. The employer provides it to the employee, who may need the information when starting a new job or dealing with a tax matter. Keep the document safely and give the relevant details to the new employer when requested so the correct tax information can be used.
Year-end document
What is a P60 and when should an employee receive it?
A P60 summarises an employee’s taxable pay and deductions for the tax year for an employment held at the tax-year end. Employers normally provide it after the year closes and by the statutory deadline. Employees should retain it because it may be needed for tax checks, financial applications or correcting their records.
Benefits in kind
What is a P11D and when might an employer need to file it?
A P11D is used to report certain taxable expenses and benefits provided to an employee or director when those items are not dealt with through an applicable payrolling process. The treatment depends on the benefit and current reporting rules. Employers should review benefits before year end and confirm the filing and Class 1A obligations.
05
VAT and Making Tax Digital
Answers about registration, schemes, common errors and digital records.
VAT registration
When does a UK business need to register for VAT?
VAT registration is generally required when taxable turnover exceeds the current registration threshold over a rolling 12-month period, or when the business expects to exceed it within the forward-looking test period. Other situations and voluntary registration can also apply. Monitor taxable turnover monthly and check current HMRC guidance before the limit is crossed.
VAT scheme
Is the VAT Flat Rate Scheme suitable for my business?
Suitability depends on eligibility, business sector, the applicable flat-rate percentage, VAT-bearing costs and whether the limited-cost-trader rules apply. The scheme may simplify calculations, but it does not automatically reduce VAT. Compare the expected result with standard VAT accounting using realistic sales and purchase figures before joining.
VAT errors
What VAT mistakes should a small business avoid?
Frequent problems include using the wrong VAT treatment, claiming VAT without suitable evidence, missing the registration point, duplicating transactions, mixing personal and business costs, and filing from unreconciled records. Review unusual transactions before submission and keep a clear audit trail showing how figures in the return were produced.
Digital records
What is Making Tax Digital, and could it affect my business?
Making Tax Digital requires affected taxpayers to keep specified digital records and use compatible software for relevant submissions. The start date and duties depend on the tax, income and circumstances. VAT-registered businesses already have MTD obligations, while MTD for Income Tax is being introduced in phases for qualifying sole traders and landlords.
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London accounting support
Can Path Accountants help a business outside Wembley?
Path Accountants has a physical office in Wembley and supports businesses across London. If location or meeting format matters to you, confirm the available options when booking. The London page explains the wider service coverage without presenting every service area as a separate office.
Official guidance
Tax rules and deadlines can change. Use these official sources to check the latest position, then ask for advice based on your circumstances.
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