About Quantum Accounts
Quantum Accounts is a modern, precision‑driven accounting practice built on clarity, care, and genuine connection. We provide tax, bookkeeping, payroll, and compliance services to individuals and small businesses who want an accountant they can trust, speak to openly, and rely on throughout the year.
The practice is led by Darvassen Moogapillay, a Senior Accountant at Christiansons Ltd, recognised among the Top 100 Accountancy Practices worldwide. Darvassen is an HMRC‑registered Tax Agent and fully AML‑compliant, bringing regulated, professional standards together with a warm, personal approach.
Darvassen has hands‑on experience supporting clients through HMRC enquiries, including reviewing historic tax returns, correcting compliance issues, communicating directly with HMRC, and resolving cases with positive outcomes. This practical experience allows Quantum Accounts to guide clients through complex tax matters with calmness, clarity, and reassurance.
At Christiansons Ltd, Darvassen works across diverse client portfolios preparing SME accounts, filing CT600 corporation tax returns, and managing tax compliance for sole traders, partnerships, landlords, rental property income, interest, private pensions, cryptocurrency, and investment portfolios. He also manages full bookkeeping and year‑end preparation, ensuring every client benefits from strong financial records and dependable technical standards.
Quantum Accounts is operated by a sole practitioner, meaning every client receives direct communication, personal attention, and a relationship‑driven service. You will always speak to the same person someone who knows your situation, understands your goals, and genuinely cares about your financial wellbeing.
All fees are very reasonable and charged excluding VAT, as the practice is not VAT‑registered, making our services more accessible and cost‑effective for individuals, landlords, subcontractors, and small businesses.
Services
Tax Returns (Self‑Assessment)
Quantum Accounts provides a complete, stress‑free Self Assessment service tailored specifically for sole traders. We handle every stage of the tax return process from gathering records to final HMRC submission ensuring accuracy, compliance, and peace of mind. Our service includes a detailed review of your business income, allowable expenses, capital allowances, and any other relevant reliefs. We perform full tax calculations, compliance checks, and ensure your return reflects all legitimate claims to reduce your tax liability within HMRC rules. You also receive clear guidance on what expenses you can claim, how to keep compliant records, and how to plan ahead for future tax years. Whether you’re a new sole trader or an experienced business owner, we make the Self Assessment process simple, efficient, and fully HMRC‑compliant.
VAT Returns
We provide a comprehensive VAT service covering registration, preparation, review, and digital submission of VAT returns, ensuring full compliance with HMRC legislation and Making Tax Digital (MTD) requirements. Our process includes a detailed examination of all transactions, verification of VAT treatment, reconciliation of VAT control accounts, and identification of any anomalies or compliance risks before submission. We manage all statutory deadlines, maintain accurate digital records, and ensure your business meets its obligations with confidence. In addition, we offer tailored guidance on VAT schemes including the Flat Rate Scheme, Cash Accounting Scheme, and Annual Accounting Scheme helping businesses select the most efficient structure for their operations. Our advisory support also covers VAT planning opportunities, enabling clients to optimise cashflow, reduce exposure to errors, and operate with clarity and efficiency.
MTD ITSA (Making Tax Digital for Income Tax)
Comprehensive support for Making Tax Digital for Income Tax (MTD ITSA), covering quarterly updates, digital record‑keeping, software setup, and the preparation and submission of the Final Declaration. Quantum Accounts ensures full compliance with HMRC’s digital reporting requirements by using approved MTD software and maintaining accurate, real‑time financial records throughout the year. As an HMRC‑registered Tax Agent, Quantum Accounts provides disciplined processes, clear guidance, and ongoing advisory support to help sole traders, landlords, and small businesses transition smoothly into the MTD ITSA regime. Clients receive structured onboarding, tailored compliance checks, and continuous monitoring to ensure their digital tax obligations are met accurately and on time.
HMRC Enquiry Support
Professional, calm, and expert handling of all HMRC enquiries. This service covers a full review of past tax returns, identification of errors or compliance risks, and preparation of accurate corrections where required. As an HMRC‑registered tax agent, I communicate directly with HMRC on your behalf managing all correspondence, supplying evidence, clarifying technical points, and ensuring your position is represented clearly and professionally. I work to resolve compliance issues quickly, minimise disruption, and protect your financial interests, including reducing or removing penalties wherever possible. Whether the enquiry relates to self‑assessment, income reporting, expenses, missing information, or previous accountant errors, I provide complete support from start to finish, giving you confidence, clarity, and peace of mind throughout the process.
Property Tax Returns for Landlords
We provide landlords and property owners with precise and compliant preparation of property tax returns. This includes reporting UK property income, verifying allowable expenses, and addressing all relevant property‑related tax considerations and capital gains. Our service also offers clear guidance on tax efficiency and long‑term planning, helping landlords optimise their position and maximise all legitimate reliefs available.
CIS Tax Returns for Subcontractors
Quantum Accounts prepares CIS Self Assessment tax returns for subcontractors, ensuring CIS deductions, self‑employed income, and allowable business expenses are correctly reported. We check CIS statements, verify deductions, calculate tax accurately, and help subcontractors claim all legitimate expenses to reduce their tax liability.
Director’s Self Assessment Tax Return
Quantum Accounts handles the full preparation and filing of personal tax returns for company directors. This includes employment income, director remuneration, dividends, benefits, capital gains, and other relevant income sources. We also provide tailored tax planning to help directors manage their personal tax position efficiently and avoid unexpected liabilities.
Corporation Tax
We provide complete Corporation Tax support, including preparation and submission of CT600 returns, calculation of tax liabilities, and review of available reliefs and allowances. Our service also includes proactive tax planning to identify opportunities to reduce Corporation Tax within HMRC rules, helping your business remain compliant while optimising its tax position.
Company Statutory Accounts
Quantum Accounts prepares fully compliant statutory year‑end accounts for Companies House and HMRC. We support you with organised accounting records, reporting requirements, and filing deadlines, ensuring everything is submitted accurately and on time. Every set of accounts is carefully reviewed including analytical checks, ratio reviews, payment analysis, and fixed‑asset verification so allowances, reliefs, and legitimate claims are never missed.
Payroll & Auto Enrolment
Quantum Accounts delivers smooth, accurate payroll services for directors, contractors, small businesses, and growing organisations. We manage statutory deductions, National Insurance, workplace pensions, CIS payroll, payslips, P45s, P60s, pension reporting, and HMRC submissions all with clear communication and fast turnaround. Your payroll becomes stress‑free, compliant, and fully aligned with HMRC rules.
Tax Planning & Advice
Quantum Accounts offers practical, proactive tax planning tailored to your personal and business goals. We review your situation, identify available reliefs and allowances, and help you structure your finances efficiently within HMRC rules. Our advice ensures you make informed decisions, reduce liabilities where possible, and stay fully compliant.
Bookkeeping
Quantum Accounts provides accurate, organised bookkeeping that keeps your financial records clear and up to date. We manage day‑to‑day transactions, reconcile bank accounts, maintain ledgers, and prepare management information so you always know exactly where your business stands. Our approach ensures compliance, clarity, and complete peace of mind.