Bookkeeping Services for Small Businesses

Serving businesses worldwide since 2017. Get accurate monthly bookkeeping services built into every Sleek accountancy package. No bolt-ons, no nonsense, from only £60/m (billed annually).

Monthly Reconciliations: Accurate records updated every month.
Transaction Categorisation: Precision tracking of every penny.
100% VAT-Ready Records: Fully compliant for your VAT returns.
Xero Platinum Support: Expert setup by a top-tier UK partner.
Dedicated Expert Help: Direct access to qualified UK accountants.
Built for UK SMEs: Scalable support for limited companies

Rated

by 3,000+ verified clients on

Bookkeeping solutions for every business

Switch to Sleek and ‎‎ save 20% on annual accounting, with reliable support and full compliance.

Expert accounting

From

£900

£60/mo*

billed annually

Takes less than 2 minutes. No obligation.

We’ll tailor your accounting package with the below essential services based on your business needs:

Bookkeeping (annual or monthly based on your business stage)

Year-end accounts & Tax Return

Dedicated accountant for ongoing support

Confirmation Statement filing

Xero subscription (included with Pro Plan)

Director’s Tax Return

VAT filing

Payroll & pension filing for 1–5 employees

*Price shown is the starting rate for annual billing after 20% discount. Limited time offer.

"Excellent all-round service. They were quick to respond to all questions and updates and I highly recommend them."

E. Cameron | Canopius Group, Copilot Technical Training & Support Lead

Discover the difference with expert accounting

What’s included in our professional integrated bookkeeping service?

As a Xero Platinum Partner, we combine expert support with cloud accounting software to help UK businesses stay organised.

Bookkeeping at Sleek isn’t a standalone product; it’s built into our accountancy packages so your records and your tax returns always stay connected. Here’s what that looks like:

Comprehensive Monthly Reconciliations

We handle all transaction categorisation, bank reconciliations, and expense tracking. You simply upload your receipts and we ensure your records stay 100% accurate and VAT ready.

A dedicated UK accounting team

You get a direct point of contact who understands your business. You are never left talking to a chatbot or a generic support queue when you have a question.

Elite Xero Platinum integration

As a top 2 percent UK partner, we set up advanced automations in your software. This reduces your manual admin and provides real-time visibility into your cash flow.

Proactive monthly error checking

We review your data every single month to catch inconsistencies early. We aim for a 48 hour turnaround on queries so your finance process never stalls.

Seamless tax and year end handover

Because our online bookkeeping services are built directly into your accountancy package, your data flows directly into your tax returns. There’s zero manual data transfer and no risk of filing errors.

Why choose Sleek for integrated bookkeeping services?

We don’t just record transactions; we provide a tech-led finance function that has supported over 1,000 UK businesses since 2017. Here is why SMEs choose Sleek’s online bookkeeping services over standalone providers:

Connected bookkeeping and tax: Because our monthly bookkeeping services are built into your accountancy package, your records and tax returns stay perfectly aligned. You’ll never have to worry about data gaps or chasing a separate bookkeeper when it’s time to file.
Audit-ready records every month: Your VAT returns and tax filings pull from clean, checked data; which means fewer errors, fewer HMRC queries, and total peace of mind that you are fully compliant with MTD rules.
Proven scale and reliability: With over 1,000 businesses supported globally, we combine the systems and reliability of an globally recognised firm with the personal support of a UK-based dedicated accounting team.

Who we help

Sleek’s monthly bookkeeping services support UK businesses that need accurate records, stronger reporting discipline, and a more reliable finance process.

Limited companies
Sole traders
Contractors
Freelancers
Startups
Small businesses
Growing businesses with increasing transaction volume
VAT-registered businesses that need cleaner monthly records

It is particularly suited to businesses that want bookkeeping handled as part of a wider accountancy service, rather than treated as a separate admin task.

How your bookkeeping works with Sleek

Getting your books in order shouldn’t be a struggle. We follow a simple monthly cycle to keep your finances on track and your tax returns ready.

A clean start with the right tools

We get you on Xero and aligned with HMRC standards immediately. This gives you a compliant system that grows with your business from day one.

Effortless data sharing

Connect your bank feed to Xero and upload receipts or invoices through our app as you spend. There is no manual entry and no paperwork to hunt for at the end of the year.

We catch problems before they become expensive

We reconcile your books each month, spot issues early, and keep your records accurate and HMRC compliant. Timelines vary by business, but we generally aim for within two weeks of month end for VAT clients and within three weeks for non-VAT clients, subject to receiving your information on time.

A stress free path to your tax filings

Your monthly bookkeeping services feed directly into your tax returns, so the heavy lifting is finished throughout the year. Filing your year end accounts becomes a stress free process because your data is already verified.

More than just bookkeepers

Your records are managed by a professional team of AAT, ACCA, and CIMA qualified specialists. Rather than relying on a single individual, you benefit from a reliable, process led system designed to keep your monthly bookkeeping services accurate and HMRC compliant.

Chloe Waite (MAAT, ACCA)

Accounts Manager

Chloe supports a wide range of Sleek clients with year-end accounts, VAT returns and Self Assessment. With eight years of experience in accounting, she works across multiple areas of client accounting to ensure accurate reporting and smooth day-to-day financial management.

Maddison Owen (AAT)

Accountant

Maddison is an AAT-qualified accountant with over six years of experience, specialising in year-end accounts and VAT. She is known for building trusted relationships with her clients, taking time to understand their business and provide clear, practical support. Her friendly approach helps business owners feel confident in their financial reporting.

Ping Law

Financial Accountant

Ping supports Sleek clients with accounts preparation and day-to-day accounting support. With nearly 4 years experience and currently progressing through the ACA (ICAEW) qualification, Ping is recognised by clients for her dedication and support in helping businesses succeed.

Trusted by UK businesses for bookkeeping support

We support UK business owners with structured monthly bookkeeping that keeps records accurate, up to date, and ready for reporting.

Here’s what our clients say about working with us:

"I was recommended Sleek when setting up my company and the team has helped me every step of the way. They are always available to answer my questions in great detail and help out with all kinds of situations. I definitely recommend jumping on board with them."

Jordan L.Director

"A great experience with a team that is professional and quick to respond. They made everything clear and stress free while keeping my company compliant and organised. I highly recommend them for reliable and professional service."

Farah W.Business Founder

"Very well organised and dedicated to supporting you with any queries. I did not have to do much at all and I am impressed by how quickly I received all my paperwork. I am very happy with the support."

DinaSmall Business Owner

Helpful Reading on Bookkeeping Services

Bookkeeper vs Accountant: What’s the difference?

Not sure whether you need a bookkeeper, an accountant, or both? This guide explains the difference clearly, from day-to-day record keeping to tax, reporting, and compliance support.

Top 7 best bookkeepers in the UK

Comparing bookkeeping providers in the UK? This guide looks at what sets the best bookkeepers apart, including cloud software, HMRC compliance, service scope, and support for growing businesses.

What Self Assessment Expenses can you claim in 2026?

Claiming the right expenses can significantly reduce your tax bill. This guide covers exactly what HMRC allows so you can maximize your tax relief while keeping your records accurate and compliant.

FAQs on bookkeeping services

What are bookkeeping services in the UK?

Bookkeeping services in the UK involve recording, organising, and maintaining a business’s financial transactions. This usually includes reconciling bank accounts, categorising income and costs, tracking invoices and expenses, and keeping records ready for VAT, reporting, and year-end accounts. Good bookkeeping helps businesses work from accurate figures and supports smoother compliance with HMRC record-keeping requirements.

Do I need a bookkeeper or an accountant in the UK?

You may need both, depending on how your finances are managed. A bookkeeper handles the day-to-day financial records, while an accountant uses that information for reporting, tax, compliance, and advice. If your records are not kept properly, accounting work becomes slower and less reliable.

Many businesses prefer a service that includes bookkeeping within wider accountancy support so nothing is handled in isolation.

How is Sleek’s bookkeeping different from hiring a freelance bookkeeper?

Hiring a freelance bookkeeper usually means working with one person focused mainly on transaction processing. By contrast, Sleek gives you an integrated service that combines bookkeeping, accounting, and tax support in one place. That means your records are maintained by a qualified team using connected software and reviewed with compliance in mind, so your bookkeeping supports accurate filings, reporting, and wider financial management.

What software do you use for bookkeeping?

Sleek uses modern cloud accounting software, including Xero, to keep bookkeeping accurate, efficient, and easier to manage. As a Xero Platinum Partner, we help businesses benefit from bank feeds, automated reconciliations, clearer reporting, and better visibility over day-to-day finances. Using connected software also helps reduce manual errors and keeps your bookkeeping aligned with VAT, reporting, and year-end accounting requirements.

What happens if my books are behind or messy?

If your books are behind, incomplete, or poorly organised, they can usually be brought back up to date through catch-up bookkeeping. This involves reviewing past transactions, reconciling accounts, correcting miscategorised entries, and rebuilding records so they are usable for reporting and compliance. For many businesses, this is a key first step before ongoing support begins. The exact scope and cost will depend on how much clean-up is needed.

How much do bookkeeping services cost in the UK?

For most sole traders and small limited companies, our packages start at £60 per month and include bookkeeping, accounting, and tax support. Bookkeeping costs can still vary depending on transaction volume, VAT requirements, number of accounts, software setup, and the level of support your business needs. Get a quote for your specific needs if your business has more complex requirements.

Can a bookkeeper help with VAT returns in the UK?

Yes, a bookkeeper can help keep your records in order for VAT returns by maintaining accurate transaction data, reconciling accounts, and making sure sales and purchase records are properly captured. While the exact filing support depends on the service, good bookkeeping makes VAT returns easier to prepare and review. It also reduces the risk of errors caused by missing or poorly organised records.

Are bookkeeping services tax deductible in the UK?

In many cases, bookkeeping services are an allowable business expense if they are incurred wholly and exclusively for running your business. That means the cost can usually be deducted when calculating taxable profits. However, treatment can vary depending on your business structure and the nature of the work. It is worth checking with your accountant to confirm how the expense applies in your situation.

What records does a UK business need to keep?

A UK business should keep clear records of income, expenses, sales, purchases, bank transactions, invoices, receipts, payroll information where relevant, and VAT records if registered. The exact records depend on the business type, but the aim is the same: to maintain evidence that supports tax filings and financial reporting. Keeping complete, organised records also makes it easier to stay compliant and respond to HMRC queries.

Can a bookkeeper help prepare for Making Tax Digital?

Yes. Sleek helps businesses prepare for Making Tax Digital by setting you up on MTD-compatible software, including Xero, maintaining accurate digital records each month, and keeping your bookkeeping aligned with HMRC’s digital record-keeping requirements. We also help ensure the information used for VAT submissions is complete, consistent, and ready for filing. That gives you a more reliable process as digital compliance rules continue to develop.

Helpful Guide: Making Tax Digital for Small Businesses

Need more information?

Browse our articles for in-depth guides, expert tips, and the latest updates on UK business essentials.

Data Security

We take the protection of your personal and financial data seriously.

Sleek maintains several recognised security certifications and compliance frameworks. Our organisation is certified for ISO 27001:2022, PCI DSS, and SOC 2, and our systems and processes are designed to comply with GDPR requirements.

These certifications reflect our commitment to maintaining strong information security controls, protecting sensitive data, and adhering to internationally recognised privacy and security standards.

Carles M,
Sleek Advisor

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