Accounting and bookkeeping services for growing businesses in London

Accounting & Bookkeeping Support for Growing Businesses

From routine bookkeeping and VAT compliance to management accounts and year-end reporting, ATA provides practical accounting support designed around the needs of small businesses, start-ups and growing companies.

Bookkeeping & Cloud Accounting

Keep your financial records accurate, organised and up to date with ongoing bookkeeping and account reconciliation.

VAT Returns & Making Tax Digital

VAT registration, digital record keeping, VAT return preparation and Making Tax Digital compliance.

Payroll &
PAYE

Payroll processing, payslips, RTI submissions, PAYE reporting and ongoing payroll support.

Management Accounts

Regular management accounts and financial reporting to help you understand performance, cash flow and the financial position of your business.

Year-End
Accounts

Preparation of annual accounts for companies and small businesses, with accurate records and practical support throughout the year-end process.

Corporation
Tax

Corporation Tax calculations and CT600 preparation, helping your company meet HMRC filing requirements and understand its tax position.

Ongoing Accounting Support for Small Businesses

Good accounting is more than preparing figures at the end of the year. ATA can support your business throughout the year, keeping your records organised, monitoring key filing requirements and helping you understand your financial position as your business develops.

Keeping Your Accounts Under Control

  • Bank and credit card reconciliations
  • Sales and purchase ledger bookkeeping
  • Expense categorisation
  • VAT records and returns
  • Payroll information and reconciliations
  • Director’s loan account monitoring
  • Year-end preparation and adjustments
  • Accounting records ready for tax filing
Bookkeeping and cloud accounting support for small businesses
Cloud accounting software support using QuickBooks, Xero and Sage

Bookkeeping & Cloud Accounting for Small Businesses


Reliable bookkeeping gives you a clearer picture of your business throughout the year. ATA can maintain your accounting records, reconcile transactions and organise financial information so that your accounts remain accurate, up to date and ready for VAT returns, management reporting and year-end accounts.

  • Bank and credit card reconciliations
  • Sales and purchase ledger maintenance
  • Recording and categorising business expenses
  • Customer and supplier account reconciliations
  • Director’s loan account bookkeeping
  • VAT bookkeeping and digital records
  • Month-end and year-end bookkeeping reviews
  • Cloud accounting support using QuickBooks, Xero and other accounting systems

Behind with your bookkeeping?

VAT Returns & Making Tax Digital Support

VAT compliance can become increasingly complex as a business grows. ATA can help maintain accurate VAT records, prepare and submit VAT returns and support businesses with their Making Tax Digital obligations.

  • VAT registration and de-registration support
  • Preparation and submission of VAT returns
  • Making Tax Digital compliant record keeping
  • Review of VAT transactions and reconciliations
  • Input and output VAT checks
  • VAT treatment of business expenses
  • Support with VAT queries and corrections
  • Ongoing bookkeeping linked to VAT reporting

More Than Just Filing The VAT Return

Accurate VAT reporting starts with reliable bookkeeping. We can review the underlying transactions, reconcile VAT records to your accounting system and identify unusual or incorrectly categorised items before the return is prepared.
You can also read the latest HMRC guidance on Making Tax Digital for VAT on GOV.UK.
HMRC guidance on Making Tax Digital for VAT

VAT returns and Making Tax Digital accounting support

Payroll & PAYE Services

Payroll and PAYE services for small businesses

Running payroll accurately and on time is essential for both employers and employees. ATA provides practical payroll support for small and growing businesses, helping you manage regular payroll processing, PAYE reporting and ongoing employer obligations.

  • Weekly, fortnightly and monthly payroll
  • Payslip preparation
  • PAYE and National Insurance calculations
  • RTI submissions to HMRC
  • New starters and leavers
  • Workplace pension and auto-enrolment support
  • P60 and year-end payroll reporting
  • Payroll reconciliations and ongoing support

Management Accounts & Business Reporting

Good accounting should do more than record what has already happened. ATA can prepare regular management accounts and financial reports to help business owners understand performance, monitor cash flow and make better-informed decisions.

  • Monthly or quarterly management accounts
  • Profit & loss and balance sheet reporting
  • PAYE and National Insurance calculations
  • Cash flow monitoring
  • Budget versus actual analysis
  • Management reporting and financial insights
  • Review of costs, margins and business performance
  • Support with forecasting and business planning
Management accounts and financial reporting for growing businesses
Year-end accounts and Corporation Tax support

Year-End Accounts & Corporation Tax

Year-end accounts provide more than a statutory filing requirement — they bring together the financial position of your business for the year. ATA can prepare annual accounts and Corporation Tax returns while reviewing the underlying records to help ensure the figures are complete, accurate and properly supported.

  • Statutory year-end accounts
  • Corporation Tax calculations and CT600 returns
  • Companies House accounts filing
  • Review of bookkeeping and year-end balances
  • Director’s loan account reviews
  • Fixed assets and depreciation
  • Accruals, prepayments and year-end adjustments
  • Corporation Tax payment and filing deadlines

Cloud Accounting & Software Support

Modern accounting works best when your financial information is organised and accessible throughout the year. ATA works with leading cloud accounting platforms to help businesses maintain accurate records, streamline bookkeeping and improve financial visibility.

  • QuickBooks Online support
  • Xero bookkeeping and reporting
  • Sage accounting support
  • Bank feed setup and reconciliation
  • Digital bookkeeping workflows
  • MTD-ready record keeping
  • Accounting software clean-up and corrections
  • Migration and opening balance support
Accounting data migration automation and financial reporting

Accounting Support for Small & Growing Businesses

ATA supports businesses at different stages of growth, from start-ups establishing their accounting systems to established companies requiring ongoing bookkeeping, VAT, payroll, management accounts and year-end support.

Accounting support for start-ups and new businesses

Accounting setup, bookkeeping systems, VAT and payroll support as your business becomes established.


Ongoing bookkeeping, VAT, payroll and year-end accounting without the cost of maintaining an in-house finance team.


Management accounts, reporting and more structured financial processes as your business becomes more complex.


Practical accounting and tax support for directors who want their business finances organised and managed in one place.

WHY BUSINESSES CHOOSE ATA

Accounting Support Built Around Your Business

Good accounting is not just about meeting filing deadlines. We aim to understand how your business operates, keep your financial information organised and provide practical support as your requirements develop.

Practical, Accessible Support

Clear accounting and tax support without unnecessary complexity. We explain what the numbers mean and what needs your attention.

Accounting That Grows With You

From bookkeeping and VAT to management accounts, year-end reporting and more structured financial processes as your business develops.

One Place for Accounting & Tax

Keep bookkeeping, payroll, VAT, accounts and tax connected rather than dealing with different providers for each part of your finances.

Specialist support when you need it. We also support businesses with more specific accounting and tax requirements across property, construction, hospitality and other specialist sectors.

Frequently Asked Questions About Accounting & Bookkeeping

ATA can provide ongoing bookkeeping support including bank and credit card reconciliations, sales and purchase ledger maintenance, expense categorisation, VAT records and other routine accounting processes. The level of support can be tailored to the size and requirements of your business.

Bookkeeping should ideally be kept up to date throughout the year rather than being left until the year end. The appropriate frequency will depend on the volume and complexity of your transactions. ATA can provide weekly, monthly or other regular bookkeeping support to help keep your financial records accurate and current.

Yes. ATA can provide an integrated accounting service covering bookkeeping, VAT returns, payroll and year-end accounts. Keeping these services together can help maintain consistency between your accounting records, VAT reporting, payroll information and annual accounts.

Yes. ATA works with QuickBooks, Xero and Sage and can support businesses with day-to-day bookkeeping, bank reconciliations, VAT records, reporting and year-end preparation. We can also help review and organise existing accounting records where a system requires clean-up or correction.

Yes. ATA can take over existing bookkeeping records and review the current position before ongoing work begins. This may include checking opening balances, bank reconciliations, VAT records and outstanding bookkeeping issues to help ensure the accounting records are complete and up to date.

Yes. In addition to year-end accounts, ATA can prepare regular management accounts to give business owners greater visibility over profitability, cash flow and financial performance. Management reporting can be provided monthly or quarterly depending on the needs of the business.

READY TO GET YOUR ACCOUNTS ORGANISED?

Looking for Reliable Accounting & Bookkeeping Support?

Whether you need help keeping your records up to date, managing VAT and payroll, preparing management information or completing your year-end accounts, ATA can provide practical support built around the way your business operates.

Accurate Records

Keep your bookkeeping and financial records organised and up to date.

Clear Reporting

Understand your numbers with practical and useful financial information.

Ongoing Support

Accounting support that can develop as your business and requirements grow.

No obligation. Tell us what accounting support you need and we’ll explain how ATA may be able to help.