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Snowed under with your book-keeping? Need help with your tax return?

We are Sussex-based professional accountants who specialise in supporting small businesses. We offer a full range of affordable business services – to relieve you of stress so you’re free to run your business.


Welcome to KAT Accounts


Welcome to KAT Accounts – Kilcoyne Accounts and Taxation Ltd.

We are a home based and experienced accounting and taxation company and we’re here to free you from the stress that accounting and taxation can bring.

No jargon, no hidden costs, just fixed fees based on our estimate of our time costs without compromise on professional standards. See our terms and conditions.

We understand the pressures that small businesses are under and we pride ourselves on offering professional, friendly support tailor-made to your specific needs.

You may be a sole trader or director of your company. You may have trouble hitting your tax deadlines or worry about your book-keeping. You may be due a tax rebate. Whatever your needs, our experience and expertise mean your tax and accounting worries are at an end.

We are hard-working, friendly accountants, committed to providing you with a professional service and value for money. Though based in East Sussex, we welcome enquiries and clients from across the UK.

KAT Accounts was established in 2003 by our director, Katrina Kilcoyne who is a member of the Institute of Financial Accountants (IFA) and the firm has professional indemnity insurance.


How can we help?

We offer a full range of business support services and monitor filing deadlines for you via our database software.

Book-keeping and accounts preparation

We can free up your time to get on with running your business by handling your book-keeping and accounts preparation for you.

Tax and VAT returns
Let us take the pressure off when HMRC deadlines loom. Whether it’s a tax or VAT return you need help with, whether you’re an employer or self-employed, we can handle things for you.

We can help you run the weekly or monthly payroll for your business, ensuring that payments to HMRC are paid on time. The rates and the regulations are constantly changing but we’ll keep close tabs on both for you.

img_5 Business start-up
Thinking of starting your own business? Look no further. We provide up-to-the-minute expert advice on most aspects of business start-up.

img_5 Tax refunds
You may be due a tax refund and not even know about it. We’ll find out for you. If you are in work now but have had periods of unemployment in the last four years, HMRC may owe you money.

Xero Online Accounting Software


The director Katrina Kilcoyne is an Incorporated Financial Accountant of the IFA:

What our clients say about us

‘KAT Accounts helped me to sort out my overdue final accounts that were provided by a very incompetent accounting company. Since then I feel very lucky that I can entrust the key part of my business to a very competent and responsive company. I like the fact that I have one single point of contact that will answer all my questions and does the job properly. I know that I am in good hands and I always recommend KAT Accounts to fellow IT contractors; especially those who lose a lot of money using umbrella companies!’

Emil Glownia, Microsoft Certified BI Developer


‘My company currently uses KAT Accounts for financial accounts, corporation tax and statutory filing, payroll and dividend service. All work is prepared with the minimum fuss, which results in reasonable fees and an efficient service which I would recommend to anyone.’

Alexandra MacWhirter, FT Luckman & Company Ltd

Our services

Business start-ups

Incorporation (usually beneficial if your business profits are over £20K)

Limited company accounts including corporation tax returns and online submission to HMRC & Companies House

Sole trader accounts and related self assessment tax return

Partnership accounts and related self assessment tax returns

Personal tax returns (including directors, partners and high-earners)

Book-keeping including VAT returns and management accounts

Payroll including Construction Industry Scheme (CIS)

Business Link’s website provides excellent, easy-to-understand guidance on all aspects of business, including start-up, employment law and taxes.

For your peace of mind
We have professional indemnity insurance