The Wall of Ideas

Accounting & Bookkeeping
services to support you every step of the way

Why choose TDO Accounting?

  • Top quality reliable service, which is tailored to your needs

  • 30+ years Finance & Accounting experience

  • Fully qualified, with an ICB Practice Licence

  • Expert in Business Start-ups, Landlord accounting

  • Supports Individuals, Sole Traders, Charities, Sport & Social Clubs, Partnerships & Micro/Small Ltd Companies 

  • Uses the latest Cloud Accounting Software (Quickbooks, Xero)

  • Operates in Orpington, Bromley & surrounding areas

  • ​Clear & detailed quote, provided free of charge

  • Taking good care of your books & records is only the start, as through on-going financial insight & guidance I act as a true business partner, supporting the long term success of your company   

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Business Start-ups

Advice on business plans, bank accounts, business structure, accounting & annual filings

Self Assessment

Prepare the form, calculate the

tax liability & submit online. Act as your tax agent  


Preparation & submission of year-end accounts under UK GAAP. Landlord accounting

Business Taxation

Prepare, calculate & submit VAT Returns & Corporation Tax


Provision of full bookkeeping services, whether monthly, quarterly or annually

Business Insight

Provision of management accounts, forecasts, cashflow analysis to aid decision making


About Me

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I've worked in Finance & Accounting (both public & private sector) for over 30 years & during that time qualified as both a Certified Accountant & Bookkeeper. The majority of my career has been spent with S&P Global. Firstly managing the European Finance Team, working closely with senior management of multiple businesses to support decision making/driving growth, through provision of insightful Financial Analysis, Reporting, Estimates & Budgets. For the last 5 years I worked in a Corporate role as Senior Finance Director Global Accounting Operations, AP & T&E, managing a large global team.

Ahead of setting up TDO Accounting I worked for Financial Express to lead the implementation of NetSuite.

Outside of work I enjoy sport & also have a passion for travel.

Trevor Ottley, MICB PM.Dip

Qualified as a Chartered Certified Accountant (ACCA) in 1997

Institute of Certified Bookkeepers:

  • ICB Level 3 Certificate in Bookkeeping & Accounts (Distinction with Honours)

  • ICB Level 3 Diploma in Payroll Management

  • ICB Level 4 Certificate in Self Assessment

  • ICB Level 4 Certificate in Financial Statements for Micro & Small Businesses

  • ICB Level 4 Certificate in Corporation Tax for Micro & Small Businesses

  • ICB Level 4 Certificate in Business Insight

QuickBooks Certified ProAdvisor ​Advanced Online

Xero Advisor Certified & Xero Payroll Certified

Practice No. 22529


Thank you for taking the time to visit the website. If you require more information on any of my services, then please use the contact form below.

Thank you for your enquiry

07368 537076

Cloud Accounting

Above the Clouds

Accounting Software

Cloud Accounting Software transforms the accounting experience for our clients. 
With expertise on the best Cloud Accounting Software on the market, TDO Accounting can advise & support you in selecting the best solution for your business.

Above the Clouds


Above the Clouds


Helpful Info.
Financial Report