Sirius IntegratedChartered Accountants
Chartered Accountants

Chartered accountants for businesses that need their numbers right.

We handle the accounts, tax and payroll work that keeps a business compliant, and the advisory work that keeps it growing. Straightforward reporting, no jargon, and a partner who actually answers the phone.

ICAEW Chartered Practice Xero Platinum Partner Free initial consultation
Why Sirius Integrated

Our role extends beyond the preparation of accounts. We act as a trusted financial partner to the businesses we serve, particularly where decisions carry weight.

Whatever the trading climate, the fundamentals don't change: clean accounts, accurate tax, and advice you can act on. We work with sole traders through to established limited companies, and we keep things in plain English from the first conversation onward.

Our Expert Services

What we offer

Accounts & Tax

Annual accounts, corporation tax and self-assessment, prepared accurately and filed on time, every time.

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Bookkeeping

Day-to-day records kept current, reconciled, and ready whenever you or HMRC need to look at them.

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Payroll

Wages, pensions and HMRC submissions handled on schedule, so your team is paid right, every period.

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Business Growth

Forecasting, cash flow planning and advisory support for businesses ready to take the next step.

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International Accounting

Multi-jurisdiction bookkeeping, group consolidation, and UK GAAP or IFRS reporting for businesses with operations or shareholders abroad.

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Corporate Structure Setups

UK company incorporation, registered office and company secretarial support, and group structuring for cross-border ownership.

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Risk & Compliance

AML/CFT controls, GDPR compliance and regulatory health checks, so your business meets its obligations with confidence.

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Tax

Tax structuring, corporate tax, VAT and indirect tax, estate planning and personal tax. Full advisory and compliance under one roof.

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HR & Business Outsourcing

Outsourced HR administration, employment documentation and back-office support, so you can run the business without running a back office.

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International

International Accounting

For businesses trading across borders, with overseas shareholders, or running entities in more than one jurisdiction, we keep the books consistent and the reporting defensible wherever HMRC or an overseas regulator looks.

  • Multi-currency bookkeeping and consolidation across group entities
  • UK GAAP and IFRS reporting, prepared side by side where both are required
  • Cross-border VAT and intra-group transaction recording
  • Liaison with overseas accountants and auditors for group sign-off
  • Transfer pricing documentation support for related-party transactions
  • Currency translation and foreign branch reporting
Most groups we work with run a UK holding company alongside one or more overseas operating entities. We coordinate the UK side end to end, and work directly with your local accountants elsewhere so nothing falls between jurisdictions. Talk to us about your structure →
Corporate

Corporate Structure Setups

Whether you're incorporating your first UK company or building a group structure around an existing overseas business, we handle the company formation and the administration that keeps it in good standing afterward.

  • UK private limited company incorporation via Companies House
  • Registered office and company secretarial services
  • Group structuring for cross-border ownership and holding companies
  • Preparation and filing of confirmation statements and statutory returns
  • Director and shareholder changes, share allotments and transfers
  • Redomiciliation support when moving a company's place of registration
A new UK entity is often the easiest part of a wider plan. The harder part is making sure it sits correctly alongside whatever you already have abroad. We map the structure first, then incorporate. Discuss your structure →
Compliance

Risk & Compliance

Compliance obligations have grown for businesses of every size. We help you meet them without turning your team into part-time compliance officers, from anti-money laundering controls to data protection.

  • AML/CFT policies, procedures and risk assessments
  • UK GDPR compliance reviews and data protection documentation
  • Regulatory health checks and compliance gap analysis
  • Staff training on financial crime and data protection obligations
  • Support for Money Laundering Reporting Officers and Data Protection Officers
  • Ongoing monitoring as regulatory requirements change
Most of our clients don't need a standalone compliance function, just a clear set of policies and someone to check they're still fit for purpose each year. Ask about a compliance health check →
Tax

Tax

UK tax rules shift often and the cost of getting them wrong is rarely small. We offer a full range of advisory and compliance services across direct and indirect tax, for businesses and individuals alike.

  • Tax structuring for new and existing businesses
  • Corporation tax compliance and planning
  • VAT registration, returns and indirect tax advisory
  • Estate planning and inheritance tax
  • Personal and income tax for directors, shareholders and individuals
  • Representation in HMRC enquiries and disputes
We look at tax structuring before incorporation wherever possible, since the right structure from the outset is usually cheaper than correcting one later. Ask about your tax position →
Outsourcing

HR & Business Outsourcing

Running HR and back-office admin alongside a growing business is hard to do well in-house, especially without a dedicated team. We provide tailored outsourced support, scaled to your business, whether you have no HR function at all or already have a small team who need backup.

  • Employment contracts and staff handbooks, tailored to your business
  • HR policy setup for businesses with no existing HR function
  • Ongoing HR administration and case support alongside your team
  • Starter and leaver administration and documentation
  • Support with workplace policies and statutory compliance
  • General back-office and business administration support
Most businesses don't need a full HR department, just consistent paperwork and someone to ask when something comes up. We tailor the level of support to what your business actually needs. Ask about outsourcing your HR →

We Can Help You

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Latest Insights

From the desk
12 JUN 2026

What the Latest GDPR Update Means for Small Businesses

A summary of the practical changes that affect how businesses handle customer and website data this year.

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04 JUN 2026

Mileage Rate Increases for the First Time Since 2011

HMRC's approved mileage rate has risen. Here's what it means for claims on cars and vans this year.

Read more
28 MAY 2026

How Much Should You Set Aside for Corporation Tax?

There's no single formula, but a few sensible rules of thumb keep most businesses clear of nasty surprises.

Read more

Tax Rates Hub

Current UK figures

Income Tax Rates

2026/27 tax year
BandTaxable incomeRate
Personal AllowanceUp to £12,5700%
Basic rate£12,571 – £50,27020%
Higher rate£50,271 – £125,14040%
Additional rateOver £125,14045%
Source: gov.uk/income-tax-rates. Rates differ for Scottish taxpayers; see GOV.UK for Scottish Income Tax bands.

Corporation Tax Rates

From 1 April 2026
BandProfit levelRate
Small profits rateProfits under £50,00019%
Marginal Relief£50,000 – £250,00019–25%
Main rateProfits over £250,00025%
These figures are provided for general reference and reflect published HMRC rates at the time of writing. Tax rates, thresholds and allowances change and individual circumstances vary. Please speak to us directly before relying on these figures for a specific decision.

What Clients Say

Client feedback
"

Sirius Integrated took over our bookkeeping and payroll within a few weeks of switching, and it's been completely hands-off since. Everything is filed on time and we always know where we stand.

R
R. Mackay
Director, Retail Business
"

We needed help structuring a new UK entity alongside our existing overseas company. The team walked us through it clearly and handled the incorporation end to end.

J
J. Devine
Founder, Trading Company
"

Straightforward, responsive, and they actually explain things in plain English. Our corporation tax position has been much clearer since we started working with them.

S
S. Forbes
Managing Director, Construction
Careers & Contact

We're always glad to hear from good people.

Get in touch about working with us or with a general enquiry, and attach a document if it's useful, such as a CV or supporting paperwork. We review every message personally and reply directly.

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Ready to put your accounts in order? The first consultation is free.

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