Top 10 Accounting Firms for Small The best accounting firm for a small business in London depends on operational complexity, reporting expectations and growth stage.
For straightforward VAT, payroll and annual accounts → TAJ Accountants, Crunch, or AMS Admin Support Services Limited
For audit capability and structured governance → HaysMac or Moore Kingston Smith
For complex tax structuring or international exposure → Blick Rothenberg
For structured monthly reporting and finance automation → Accountup
For scaling SMEs needing advisory alongside compliance → Gerald Edelman
For Xero-focused optimisation → Xcountant
For traditional chartered structure with cloud support → Perrys
Selecting the right firm requires aligning your reporting cadence, compliance risk and advisory needs.
1. HaysMac (London)
HaysMac is a chartered accountancy firm with strong audit and technical tax depth. It supports established SMEs, regulated businesses and companies preparing for external scrutiny.
Core Services:
Audit and assurance
Statutory accounts preparation
Corporate and personal tax advisory
VAT advisory
Employer services
Outsourcing and accounting support services
Best For:
Businesses expecting audit requirements
Regulated or compliance-heavy sectors
SMEs preparing for institutional investors
2. Blick Rothenberg (London)
Blick Rothenberg is a London-based accounting and tax advisory firm providing corporate, personal and international tax services alongside statutory compliance and accounting support.
Core Services:
Corporate and personal tax
International tax advisory
VAT and indirect tax
Employment tax advisory
Outsourced accounting and finance support
Best For:
Cross-border businesses
Companies restructuring ownership
SMEs expanding internationally
SYSTEM INSIGHT / NEXT STEP
Make the next move with clarity.
If this issue is already showing up in reporting, runway, or team decisions, the next move is usually clearer with a structured finance view.
3. Accountup (London) - Structured Finance Engine for SMEs
Accountup focuses on structured monthly reporting and workflow automation for UK startups and growth-stage SMEs. The model centres on installing a finance system with defined cadence and ownership.
Core Services:
Bookkeeping with structured monthly close
VAT return preparation and filing support
Payroll coordination
Companies House and statutory filing support
Management reporting and board packs
Cash visibility and runway tracking
Finance stack design (Xero, billing, payroll, spend tools)
Workflow automation for approvals and reconciliations
Best For:
Startups providing monthly investor updates
SMEs with inconsistent reporting cycles
Founder-led businesses without in-house finance teams
Companies managing burn rate and runway closely
Operational Fit
Many SMEs experience:
Reporting delays
Reconciliation gaps
Unclear short-term cash visibility
Accountup installs:
A defined monthly close calendar
Ownership for reconciliations
Standardised reporting timelines
Integrated finance tools
This approach supports reporting discipline without requiring a full internal finance department.
4. Gerald Edelman (London)
Gerald Edelman is a London-based accountancy firm providing audit, tax and advisory services to SMEs and mid-sized businesses.
Core Services:
Accounts preparation
Audit services
Corporate tax
VAT compliance
Payroll services
Accounting and business advisory support
Best For:
SMEs increasing transaction complexity
Businesses preparing for funding rounds
Companies seeking structured financial guidance alongside compliance
5. Moore Kingston Smith (London)
Moore Kingston Smith provides audit, tax and transaction advisory services for mid-sized SMEs and businesses undergoing structural change.
Core Services:
Audit and assurance
Corporate tax advisory
VAT compliance
Payroll
Corporate finance and transaction support
Best For:
SMEs preparing for acquisition or sale
Companies requiring structured governance
Businesses needing formal advisory frameworks
6. TAJ Accountants (East London)
TAJ Accountants is an East London-based accounting practice providing compliance and routine accounting services to small businesses and limited companies.
Core Services:
Bookkeeping and accounts preparation
VAT returns
Payroll
Corporation tax
Self-assessment support
Company formation services
Best For:
Early-stage limited companies
Sole traders
Businesses seeking compliance-focused accounting support
7. Crunch (UK, Online)
Crunch is a subscription-based online accounting provider for freelancers and micro-SMEs.
Core Services:
Online bookkeeping
Limited company accounts
Self-assessment
VAT support (plan-dependent)
Service scope varies depending on subscription tier.
Best For:
Freelancers
Contractors
Micro businesses seeking predictable monthly cost
8. Xcountant (London)
Xcountant specialises in Xero-based accounting and cloud bookkeeping support.
Core Services:
Xero-based bookkeeping
VAT returns
Payroll support
Xero reporting and management accounts
Best For:
Businesses operating fully within Xero
SMEs prioritising workflow optimisation
9. Perrys Chartered Accountants
Perrys combines traditional chartered accounting with cloud integration support.
Core Services:
Accounts preparation
Corporate and personal tax
VAT
Payroll
Cloud accounting integration
Best For:
Stable SMEs
Businesses transitioning to cloud systems
Companies seeking traditional chartered structure
10. AMS Admin Support Services Limited (London)
AMS Admin Support Services Limited is a London-based accounting firm providing compliance, bookkeeping, and tax advisory services to UK small businesses and limited companies. The firm focuses on statutory accuracy, structured compliance processes, and practical tax planning support.
Core Services:
Bookkeeping and accounts preparation
VAT return preparation and submission
Corporation tax compliance
Self-assessment tax returns
Payroll processing and employer compliance
Companies House filing support
Tax advisory and planning support
CIS and contractor support (where applicable)
Best For:
Small businesses seeking reliable statutory compliance
Limited companies requiring ongoing VAT and corporation tax support
Directors needing structured personal tax planning
SMEs wanting compliance accuracy alongside practical tax advice
Operational Fit
Businesses that prioritise:
On-time statutory filings
VAT and payroll accuracy
Structured tax compliance
Clear communication around tax obligations
may find compliance-led firms such as AMS Admin Support Services Limited aligned with their needs.
How to Choose the Right Accounting Firm in London
Choosing the right accountant depends on the operational realities inside your business.
If This Describes Your Business | What You Likely Need | Best Fit |
You want VAT, payroll and annual accounts handled correctly | Reliable compliance execution | TAJ Accountants, Crunch, AMS Admin Services |
You expect audit requirements or institutional investment | Structured audit capability | HaysMac or Moore Kingston Smith |
You manage cross-border transactions or international tax complexity | Advanced tax advisory | Blick Rothenberg |
Your monthly numbers arrive late or require reminders | Defined monthly close process with clear ownership | Accountup |
You are scaling and need advisory input alongside compliance | Strategic financial guidance | Gerald Edelman |
You operate fully within Xero and want optimisation | Tool-specific workflow expertise | Xcountant |
You prefer a traditional chartered structure with cloud capability | Balanced compliance and integration | Perrys |
Note: This guide is editorial and based on publicly available service information. Businesses should review each firm’s current service scope before engagement.
How Much Do Small Business Accountants Cost in London?
Business type | Typical price | Notes |
Sole trader | £25-£150+ / month | Entry-level online or software-led packages can start from around £25 per month. Higher fees apply where bookkeeping volume, advisory input, or regular support increases. |
Limited company (VAT registered) | £100-£450+ / month | Commonly advertised package ranges for VAT-registered limited companies fall within this band. Pricing depends on transaction volume, VAT complexity, and level of ongoing support. |
VAT-registered SME with payroll | £250-£450+ / month | Where monthly bookkeeping, VAT returns, payroll processing, and year-end accounts are included, fees often fall within this range. Complexity and reporting frequency significantly affect cost. |
Audit-required SME | Tens of thousands per year | Audit fees vary widely depending on company size, sector, group structure, internal controls, and reporting timetable. Complexity is the primary driver of cost. |
Costs vary by transaction volume, payroll headcount, VAT scheme, reporting frequency, and advisory requirements.
Note: Published package pricing often assumes clean bookkeeping, standard VAT schemes, and limited advisory time. Additional complexity, including group structures, cross-border activity, CIS, R&D claims, stock, or investor reporting, will increase fees.
Frequently Asked Questions
Q.1: Do startups need audit-ready accounting?
Startups planning institutional funding often benefit from structured reporting and disciplined monthly close processes, even where a statutory audit is not yet required.
Q.2: What accounting software do London SMEs typically use?
Xero and QuickBooks are widely adopted. Integration between bookkeeping, payroll, billing and reporting tools improves operational reliability.
Q.3: Is local accounting better than online accounting?
Local firms often provide advisory depth. Online firms provide predictable pricing. The appropriate choice depends on business complexity.
Ready to Fix Your Reporting Discipline?
If your numbers arrive late, reconciliations slip, or cash visibility feels uncertain, the issue is structure.
Accountup installs a defined monthly close system, integrates your finance stack, and delivers consistent reporting without reminders.
If you want:
- Clean monthly reports delivered on schedule
- Clear visibility on burn rate and runway
- Board-ready reporting without last-minute preparation
- A finance system that runs without chasing
Book a structured finance review with Accountup to:
- Review your current reporting process.
- Identify gaps in close discipline.
- Receive a clear roadmap to install a reliable finance engine.
TL;DR: This guide compares 10 London accounting firms for small businesses, matched by audit capability, tax expertise, pricing, and growth stage, helping you choose between compliance-only support, structured reporting, or full advisory services.
