Accounting for Agencies With a Limited Company

Running a marketing, PR, creative, or recruitment agency through a limited company brings a specific set of accounting challenges. Unlike product businesses, agencies sell time and expertise — which means your biggest costs are people, and your income can be lumpy, project-based, and unpredictable.

Getting your accounts right keeps your cash flow visible, your tax bill as low as legally possible, and your company compliant with both HMRC and Companies House requirements. This guide covers the accounting essentials for agency directors: revenue recognition, allowable expenses, contractor payments, VAT, and annual tax filing.

Key takeaways

• People costs — salaries, freelancer fees, and contractor payments — are your largest allowable expenses and should be tracked carefully
• Revenue recognition matters: understand whether to record income when invoiced or when received, and apply it consistently
• Most agencies run through limited companies and pay corporation tax on profits each year
• Agencies grow quickly and often cross the VAT registration threshold faster than expected — plan for it from the start

What type of business is an agency for tax purposes?

An agency is a service business that earns income by providing expertise, creative work, strategic advice, or access to talent. For accounting and tax purposes, that means:

• Income is usually invoiced as a fee for services — project fees, retainers, or commissions
• Costs are primarily labour (your team, freelancers) plus tools, subscriptions, and overheads
• You may also pass through media spend, print costs, or third-party fees billed to clients

All of these have different accounting treatments, and getting them right affects both your reported profit and your corporation tax bill.

How should an agency record income?

Revenue recognition is one of the most common accounting questions for agencies. There are two main approaches:

Cash basis (when cash is received) Simple, but can distort your profit picture if clients pay slowly or in advance. Mainly used by sole traders — limited companies typically use the accruals basis.

Accruals basis (when income is earned) The standard for limited companies. You recognise income when the work is done or a milestone is reached, not when the client pays. A project invoiced in March counts as March income, even if payment arrives in May.

For retainer-based agencies, this means spreading a monthly retainer across the months of service. For project agencies, you may need to consider stage-completion rules — recognising income proportionally as the project progresses rather than in full when invoiced.

Why it matters: Using accruals gives a true picture of your agency's financial performance. It also affects your corporation tax calculation — income recognised in your accounting year is taxable in that year, regardless of when you are paid.

What expenses can an agency claim?

Agencies typically have a wide range of allowable expenses that reduce the corporation tax bill. The key principle: an expense is allowable if it is wholly and exclusively for business purposes.

People costs:

• Director salaries and employer's National Insurance
• Employee salaries and benefits
• Freelancer and contractor payments (with proper invoicing and contracts)
• Employer pension contributions (fully deductible)

Client costs that are passed through:

• Media buying costs billed to clients — only deductible if your agency bears the cost itself. If the client pays the supplier directly, it is not your cost or your income.
• Print, production, and third-party supplier costs billed on at a margin

Tools and subscriptions:

• Design software (Adobe Creative Cloud, Figma, and similar)
• Project management tools
• CRM and marketing platforms
• Accounting software

Office costs:

• Rent, business rates, and utilities for an office
• Home office costs (if directors work from home — a reasonable proportion of household bills)
• Office equipment, computers, and monitors

Business development:

• Networking events and professional memberships
• Staff team events (up to £150 per head per year under the annual staff party exemption)
• Note: client entertainment — taking clients to lunch or hospitality — is specifically disallowed for corporation tax purposes

Professional fees:

• Accountant and legal fees
• Business insurance (professional indemnity is particularly important for agencies)

How to handle freelancer and contractor payments

Most agencies use freelancers or contractors to flex their capacity on larger projects. The accounting treatment depends on the relationship:

Freelancers as self-employed individuals If you engage a freelancer who works independently, issues their own invoices, and has other clients, they are typically self-employed. You pay their invoices as a business cost — no PAYE, no National Insurance deducted by you.

Contractors via a limited company Many senior freelancers operate through their own limited company. You pay their company invoice. No employment taxes arise on your side.

Where it gets complicated If a freelancer works exclusively for you, at your direction, with set hours and no real independence, HMRC may consider them an employee. That means PAYE and National Insurance — even if they invoice you as a freelancer. Getting this wrong can be costly: HMRC can assess unpaid PAYE and NI going back several years. If you are unsure about the status of your contractors, take professional advice early.

Agencies and VAT

Agencies are more likely to exceed the VAT registration threshold than many small service businesses, because income from multiple clients adds up quickly.

Once registered for VAT:

• You charge VAT on your fees, and usually on passed-through costs
• You reclaim VAT on eligible business expenses
• You file VAT returns quarterly (or monthly if you prefer)

The main decision for agencies is whether to use standard VAT accounting or the Flat Rate Scheme. For most agencies, standard accounting is the better choice — the flat rate percentage for advertising, marketing, and PR services tends to be high enough that you pay more VAT than you recover. Check the current VAT registration threshold and flat rate percentages on GOV.UK.

Filing your company tax return as an agency

Like all limited companies, your agency must file a company tax return with HMRC within 12 months of your accounting year end, and pay corporation tax within 9 months and one day of the year end.

For agencies, the key inputs to the company tax return are:

• Total fee income and any other revenue recognised in the year
• All allowable expenses (people, tools, office, professional fees)
• Capital allowances on equipment purchased during the year
• Any losses carried forward from a previous year

Our guide to filing your company tax return walks through the process step by step, including how to enter your income and expenses and calculate your corporation tax liability.

You must also file annual accounts with Companies House. For small agencies — those meeting at least two of: turnover under £10.2 million, balance sheet under £5.1 million, fewer than 50 employees — you can file abbreviated accounts requiring less public disclosure than full accounts.

If your agency works primarily with technology or IT clients, or delivers digital transformation projects, our accounting for IT consultants guide covers related considerations around IR35 and off-payroll working rules that may apply to your contractors.

Common mistakes agency directors make

A few accounting errors come up repeatedly with agency limited companies:

Treating passed-through costs as your income If you buy media on behalf of a client and invoice them for the exact amount, it is not your income — it passes straight through. Only your margin or service fee is your revenue. Conflating the two inflates your turnover and can distort your VAT position.

Mixing personal and business expenses Agency directors often entertain clients, attend industry events, and buy equipment that blurs the personal and professional. Keep a clear business bank account and card for all company spending. If you use personal funds for a business cost, make sure the company reimburses you promptly and records the expense correctly.

Forgetting about accruals If you complete a large project in March but do not invoice until April, the income is still recognised in March for tax purposes (under accruals accounting). Missing this can lead to underreported income in one year and overreported income in the next — and unnecessary HMRC attention.

Frequently Asked Questions

Do agencies need to register for VAT straight away?

Not unless your taxable turnover has exceeded the current VAT registration threshold in a rolling 12-month period. However, many agencies register voluntarily from the start — it lets you reclaim VAT on startup costs and signals credibility to larger clients who expect VAT invoices. Check GOV.UK for the current registration threshold.

Can I claim client entertainment as a business expense?

Generally, no. Client entertainment — taking clients to lunch, events, or hospitality — is specifically disallowed as a corporation tax deduction. You can pay for it, but it will not reduce your tax bill. Staff entertainment is deductible up to £150 per person per year under the annual staff party exemption.

What is the difference between a retainer and a project fee for accounting purposes?

A retainer is income spread across months — recognise it month by month as the service is delivered. A project fee should be recognised when the milestone or completion point is reached. If you are paid upfront for work not yet done, that is deferred income — a liability on your balance sheet, not income yet.

How should an agency account for media spend it manages for clients?

If your agency buys media and the client reimburses you at cost, the spend is neither your income nor your cost — it passes straight through. If you bear the cost yourself and invoice the client at a margin, it is both your cost (when incurred) and your income (when invoiced). Getting this right affects both your profit margin reporting and your VAT return.

Should I use an accountant for my agency?

As your agency grows beyond a simple one-person operation, an accountant is usually worth the fee. Payroll, contractor employment status, IR35, VAT, and intercompany billing all add complexity that is easy to get wrong. Many agency founders use accounting software for day-to-day bookkeeping and engage an accountant for year-end accounts and tax returns.

Summary

Running a marketing, PR, creative, or other agency through a limited company means managing revenue recognition, people costs, and VAT carefully from the start. Most agency costs — people, tools, professional fees — are fully allowable, and a limited company structure gives you flexibility in how you pay yourself. Keep clean records month by month, understand your revenue recognition policy, and file your company tax return and annual accounts on time to avoid penalties.