London Xero and QuickBooks Accountants Who Advise, Not Just Record
GM Professional Accountants helps SMEs use the numbers already sitting in Xero or QuickBooks to forecast cash flow, control costs, stay Making Tax Digital compliant and plan growth with confidence.
From our London offices in Old Street, Wimbledon, Ilford and Loughton, we support owner-managed businesses across the UK with setup, migration, monthly reporting and senior-level advisory.
Key Takeaways
What Are Advisory Services for SMEs?
Unlike traditional bookkeeping or tax services, advisory accounting focuses on forward-looking insight. We help SMEs analyse profitability, forecast cash flow, develop KPIs and identify cost reduction opportunities. Find out more about our wider business advisory service, or step up to a virtual FD for Xero and QuickBooks users.
Who We Work With
We work with SMEs, owner-managed companies, wholesale and retail brands, construction firms, professional consultancies, property investors and care homes, giving proactive advice that goes well beyond compliance. Our experience spans over 500 UK businesses, from London start-ups to established multi-site companies.
Core Advisory Services
Comprehensive financial guidance for Xero and QuickBooks users across London and the UK
Cash Flow Management
Budgeting and Forecasting
Budget vs Actual Analysis
Cost Reduction and Margins
Growth and Strategic Planning
Tax Planning and Compliance
Xero or QuickBooks: Which Suits Your SME?
Both are excellent. The better choice depends on how your business runs, not on which brand is bigger.
| Consideration | Xero | QuickBooks Online |
|---|---|---|
| Often best for | Growing SMEs, eCommerce and businesses relying on many connected apps | Sole traders and smaller limited companies wanting simple invoicing and a strong mobile app |
| Users | Unlimited users on all plans | User limit depends on the plan chosen |
| Making Tax Digital | HMRC-recognised for MTD VAT and Income Tax | HMRC-recognised for MTD VAT and Income Tax |
| Multi-currency | Available on higher-tier plans | Available on higher-tier plans |
| Construction (CIS) | CIS supported for contractors and subcontractors | CIS supported for contractors and subcontractors |
| Our advice | If you are already on one platform and it works, the gains usually come from better setup and reporting, not from switching. We review your file before recommending a move. | |
Plan features and limits change regularly, so we confirm the current options for your business during the consultation.
Why Cloud Accounting Matters for Your SME
Real-time financial data is only valuable when someone turns it into decisions
Real-Time Reporting
Live figures for sales, expenses and cash mean your monthly review starts from accurate numbers, not a spreadsheet rebuilt from scratch.
Seamless Integrations
Connect payment gateways, eCommerce stores, CRM and payroll tools to cut manual entry and errors.
Scalability
Add users, entities and currencies as you grow without changing systems or losing history.
Making Tax Digital for Income Tax: What Changed in 2026?
Making Tax Digital for Income Tax is now live. Sole traders and landlords whose qualifying income from self-employment and property exceeds the threshold must keep digital records and send quarterly updates to HMRC using compatible software such as Xero or QuickBooks.
Many SME owners also hold rental property or run a side business, so MTD can apply to you personally even if your company is already on cloud software. We set up the right structure in Xero or QuickBooks, file the quarterly updates and make sure the year-end figures reconcile. Landlords can also see our property accounting service. Source: GOV.UK, Making Tax Digital for Income Tax.
Switching to Xero or QuickBooks: How Migration Works
Moving from Sage, desktop software or spreadsheets without losing history or disrupting VAT periods
Review and Plan
We review your current records, agree a conversion date (ideally the start of a VAT quarter) and decide how much history to bring across.
Chart of Accounts and Balances
We design a chart of accounts that matches how you report, then load opening balances, open invoices and bills.
Bank Feeds and Apps
Bank feeds, bank rules, payroll and connected apps are set up and tested so daily coding becomes largely automatic.
Reconcile and Train
We reconcile the first period against your old system and train your team, so nothing is lost and everyone is confident from day one.
Timelines depend on transaction volume and how many years of history you need. We agree a fixed timeline before work starts.
How We Use Xero and QuickBooks Across Sectors
The same software, set up very differently depending on how your business makes money
Construction
CIS deductions, job costing by project and retention tracking, so you can see which contracts actually make a profit.
Retail and eCommerce
Shopify, Amazon and payment gateway integrations, stock valuation and margin by channel.
Professional Services
Time and project tracking, utilisation and work-in-progress reporting for consultancies and agencies.
Property and Care
Property-by-property tracking for landlords and site-level reporting for care homes, with MTD-ready records.
Our Experience and Expertise
Trusted by over 500 SMEs across the UK
Our Credentials
Client Success Story
How to Get Started
A clear, structured onboarding process designed to deliver results quickly
Book a Consultation
We assess your current financial systems and business goals with one of our senior advisors.
Define the Scope
We agree the focus: migration, cash flow monitoring, cost reduction or full advisory support.
Implementation Roadmap
Timelines, deliverables and success metrics are agreed upfront so you know exactly what to expect.
Ongoing Reviews
Monthly cash flow check-ins and quarterly strategy meetings keep your business on track.
Frequently Asked Questions
Answers to the questions SME owners ask us most
What are advisory accountant services for SMEs?
Advisory accountant services go beyond bookkeeping and tax filing. They provide financial analysis, budgeting, forecasting, cash flow management and strategic advice to help SMEs grow sustainably and profitably.
Should my limited company use Xero or QuickBooks?
Both work well for UK limited companies. Xero often suits growing businesses that need several users and many app integrations, while QuickBooks suits smaller companies that want simple invoicing and a strong mobile app. We recommend based on your users, sector and reporting needs.
How long does it take to migrate to Xero or QuickBooks?
It depends on your transaction volume and how much history you bring across. We agree a fixed timeline before starting and usually aim to switch at the start of a VAT quarter so your returns are not disrupted.
Can you fix a messy Xero or QuickBooks file?
Yes. We regularly clean up files with unreconciled bank accounts, duplicate transactions and incorrect VAT coding, then set up bank rules and a monthly routine so the problems do not return.
Do Xero and QuickBooks work with Making Tax Digital for Income Tax?
Yes. Both are compatible with HMRC’s Making Tax Digital for Income Tax, which has applied to sole traders and landlords with qualifying income over £50,000 since April 2026. The threshold falls to £30,000 in April 2027 and £20,000 in April 2028.
Can GM Professional Accountants help with budgeting and cash flow forecasting?
Yes. We create budgets and rolling forecasts, analyse variances and implement cash flow management using Xero or QuickBooks to improve visibility and planning for your specific business cycle.
Do you work with SMEs outside London?
Yes. We have offices in Old Street, Wimbledon, Ilford and Loughton, and because Xero and QuickBooks are cloud-based we support SMEs across the UK with video meetings and shared dashboards.
Why choose GM Professional Accountants for SME advisory services?
We are an AAT regulated practice with Xero Platinum Partner and QuickBooks Advanced Solution Provider status, ISO 27001 security certification and experience supporting 500+ SMEs, delivering advisory tailored to your business.
Do you support businesses with cross-border operations?
Yes. Sharaz Zaman and the team advise SMEs operating across the UK and Qatar, including British expats and internationally trading businesses that need multi-currency and cross-jurisdiction financial management.
Ready to Get More From Xero or QuickBooks?
Speak with a senior advisor and find out what your numbers are really telling you.
Call 0208 396 6128 or email info@gmpa.co.uk
Disclaimer: This content is for general guidance only and does not constitute financial or tax advice. Tax rules change and how they apply depends on your individual circumstances. Please speak to a qualified accountant before acting on anything here.
