Accountant Bookkeeping

AccountantBookkeeping was created to provide its clients with a truly one-stop-shop solution to all their accounting needs.


With over 5 high level accounting experience across a wide array of sectors, Donatas realised he had something pretty unique to offer: not only could he provide an extensive range of quality accounting, bookkeeping and consultancy services to small-to-medium sized businesses, but he had also built a network of some of the finest experts in the field.


So whatever your businesses’ unique needs, we can meet them. Because no matter how specialized the job, AccountantBookkeeping has the specialists on board to deliver.


Company Standards


Fully compliant with The Data Protection Act 2018 (“DPA 2018”) and the General Data Protection Regulation, we are also registered with the Information Commissioner’s Office (ICO) to guarantee our systems and processes meet all legal requirements and ensure best practice.


​​With your authorization to do so, we will communicate with HMRC as your agent, explaining what action need be taken, as and when required.

Acting on your behalf, we can then submit your company MTD VAT return, Personal and Business Income Tax, Self-Assessment, Corporation Tax, Employer’s PAYE, CIS or RTI well within the deadlines.


​Supervised by Association of Accounting Technicians’ (AAT), we have been approved as ‘fit and proper’’ to act as a licensed member under the Money Laundering Regulations.


​​Protected by Trafalgar Risk Management Ltd, AccountantBookkeeping has professional Worldwide Indemnity Insurance, excluding USA and Canada their Dominions and Protectorates.


Our Team


Donatas Mendelis, Founder

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You can find about our compliance from AAT licensed members directory: Find an accountant or bookkeeper | AAT

My Experience

My Experience

With over 5 years of practice experience as a bookkeeper and accountant, I am passionate about helping my clients elevate and achieve their strategic goals.


I believe in business, collaboration, and a work smarter, not harder approach. By offering a uniquely bespoke service to each and every client, my job is to give them the breathing space to focus on their day-to-day operations. Running a successful business takes time, a willingness for risk, and a great deal of investment - in every sense. AccountantBookkeeping was launched to offer small-to-medium sized business a complete, seamless solution to all their accounting needs.


A Lithuanian national, I was trained and educated here in the UK. And don’t worry; having received settled status, I have indefinite leave to remain - and intend to do just that.


After getting my BA in Business Accounting (Hons), I have been avidly seeking out a range of qualifications to ensure I remain at the very pinnacle of modern accountancy practice.  Beyond my AAT license, these include an IAB certification in Advanced Computerised Bookkeeping and Payroll Services.

Particularly interested in exploiting the full potential of accountancy software, I am also a certified Xero Advisor, Xero Tax Specialist, QuickBooks and Sage Specialist, and fully fluent in the full range of Nomisma’s advanced tax programs.

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