Accounting is not the most exciting part of running events, but it is one of the most important. Good financial records protect you from tax problems, help you make better business decisions, and are essential if you ever want to secure funding or investment. This guide covers the accounting basics every event organiser needs to know.
Sole trader vs limited company
Before diving into accounting specifics, you need to understand which business structure you are operating under, as this determines your accounting obligations.
Sole trader: You and the business are the same legal entity. This is simpler to set up and run. You file a self-assessment tax return each year and pay income tax and National Insurance on your profits. You can register as a sole trader through HMRC's website.
Limited company: The business is a separate legal entity. You have more reporting obligations (annual accounts filed with Companies House, corporation tax return filed with HMRC) but potentially pay less tax at higher profit levels. See our guide on setting up a limited company for events for more detail.
Most event organisers start as sole traders and incorporate when it makes financial sense to do so. If your annual profits are consistently above £30,000 to £40,000, it is worth talking to an accountant about whether incorporating would save you money.
What records you need to keep
HMRC requires all businesses to keep records of income and expenses. For event organisers, this means:
Income records
- Ticket sales reports from your ticketing platform
- Invoices issued for sponsorship, vendor fees, and other services
- Bank statements showing all incoming payments
- Cash income records (bar takings, door sales, merchandise)
Expense records
- Receipts and invoices for every business purchase
- Bank and credit card statements
- Mileage logs if you claim vehicle expenses
- Records of any assets purchased (equipment, software, etc.)
You must keep these records for at least five years after the 31 January filing deadline for the relevant tax year. HMRC can ask to see them at any time during this period, so keep them organised and accessible.
Separating business and personal finances
This is the single most important accounting habit for new event organisers. Open a separate bank account for your event business and use it exclusively for business transactions. Every pound of ticket revenue goes in, every business expense goes out. This makes bookkeeping dramatically easier and prevents the nightmare of trying to separate business and personal transactions at year end.
If you are a sole trader, a standard personal account earmarked for business use is fine. You do not legally need a business bank account, but keeping things separate is essential regardless. If you are a limited company, you must have a separate business bank account.
Basic bookkeeping
Bookkeeping is the process of recording every financial transaction. At its simplest, you need a record of every pound that comes in and every pound that goes out, categorised so you know what each transaction was for.
You can do this in a spreadsheet (see our guide on managing event finances with spreadsheets) or use accounting software like Xero, QuickBooks, or FreeAgent. Cloud accounting software costs between £10 and £35 per month but saves significant time, especially when connected to your bank account for automatic transaction imports.
Whatever method you use, categorise every transaction consistently. Standard categories for event businesses include:
- Venue costs
- Production and equipment hire
- Artist and performer fees
- Staffing costs
- Marketing and advertising
- Insurance
- Licensing fees
- Travel and transport
- Professional services (accountant, legal)
- Office and admin costs
- Software and subscriptions
Invoicing
When you charge other businesses for services (sponsorship, vendor pitches, consultancy), you should issue a proper invoice. A valid invoice must include:
- Your business name and address
- Your client's name and address
- A unique invoice number
- The date of issue
- A description of the goods or services
- The total amount due
- Your payment terms (e.g., "Payment due within 30 days")
- Your bank details for payment
- Your VAT number and a breakdown of VAT if applicable
Number your invoices sequentially and keep a copy of every invoice you issue. Most accounting software generates and tracks invoices automatically.
Self-assessment basics
If you are a sole trader, you must file a self-assessment tax return each year. The tax year runs from 6 April to 5 April. Key dates:
- 5 October -- Deadline to register for self-assessment if it is your first year
- 31 October -- Deadline for paper returns (rarely used now)
- 31 January -- Deadline for online returns and payment of tax due
- 31 July -- Second payment on account (if applicable)
Your tax return will include a self-employment section where you report your total income and total expenses for the year. The difference is your taxable profit, on which you pay income tax and Class 4 National Insurance.
If your profits are above a certain level, HMRC will ask you to make payments on account, which are advance payments towards next year's tax bill. This catches many new business owners off guard because your first January payment includes both the current year's tax and half of next year's estimated bill.
When to hire an accountant
You can manage your own accounts if your business is simple and your turnover is relatively low. However, hiring an accountant is worthwhile if:
- Your turnover is approaching or exceeds the VAT threshold (£90,000)
- You are considering incorporating as a limited company
- You employ staff
- Your tax situation is complex (multiple income sources, overseas income, capital gains)
- You want to focus on running events rather than doing paperwork
- You are being investigated or have received a compliance check letter from HMRC
A good accountant will cost between £500 and £2,000 per year for a small event business, depending on the complexity of your affairs. This is a legitimate business expense that reduces your tax bill. More importantly, a specialist accountant will often save you more in tax than they charge in fees by identifying deductions and reliefs you would not have known about.
Common accounting mistakes
- Not keeping receipts -- If you cannot prove an expense, you cannot claim it. Photograph every receipt immediately and store it digitally.
- Mixing business and personal money -- This creates confusion and makes it harder to claim legitimate expenses.
- Forgetting to set aside money for tax -- A common rule of thumb is to set aside 25 to 30 percent of your profits for tax. Put it in a separate savings account so you are not tempted to spend it.
- Not claiming legitimate expenses -- Many event organisers under-claim because they are unsure what counts. If an expense is wholly and exclusively for business purposes, you can claim it.
- Leaving everything to the last minute -- Trying to do a full year of bookkeeping in January is stressful, error-prone, and often leads to missed deductions. Keep on top of it monthly.
For more on the financial side of events, see our guide to tax deductions for event businesses.
Disclaimer: This article provides general information about accounting for event businesses and is not a substitute for professional advice. Tax rules and thresholds change regularly. Always consult a qualified accountant for advice specific to your circumstances.