Navigating UK business taxation can be complex, time-consuming, and costly if not handled correctly. From corporation tax and self-assessment to VAT and capital allowances, HC-Customs provides expert business taxation services that ensure full compliance with HMRC while minimising your tax liability through legitimate and effective tax planning.

We work with limited companies, sole traders, partnerships, and LLPs across the UK, delivering clear, accurate, and proactive tax advice that keeps your business on the right side of HMRC.

• Corporation Tax (CT600) — Preparation and filing of your annual company tax return with HMRC, including accurate calculation of your corporation tax liability and all available reliefs and deductions.
• Self-Assessment Tax Returns — Personal tax returns for directors, sole traders, and partners, covering employment income, dividends, rental income, capital gains, and more.
• VAT Returns and MTD — Preparation and submission of quarterly VAT returns under Making Tax Digital, including VAT registration advice and scheme selection.
• Capital Allowances — Maximising your capital allowance claims including Annual Investment Allowance (AIA), Super Deduction claims, and full expensing on qualifying assets.
• Tax Planning — Proactive advice on structuring your business, remuneration, and investments to minimise your overall tax burden in a fully compliant way.
• Research and Development (R&D) Tax Credits — Identifying and claiming R&D tax relief for qualifying innovative activities within your business.
• HMRC Correspondence and Investigations — Managing communication with HMRC on your behalf, including handling enquiries, compliance checks, and investigations.
• Dividend Planning — Advice on the most tax-efficient way to extract profits from your company through salaries and dividends.

• Proactive not reactive — We identify tax saving opportunities for your business throughout the year, not just at year-end.
• HMRC compliant — All tax work is completed in full compliance with current UK tax legislation.
• Transparent fees — Fixed fee pricing so you always know what you are paying with no surprises.
• Combined customs and tax expertise — Uniquely, HC-Customs combines business taxation knowledge with deep customs expertise — essential for businesses involved in international trade where customs duty, import VAT, and business tax all interact.
• Deadline management — We track all your filing and payment deadlines and notify you well in advance to avoid penalties.

When is corporation tax due?
Corporation tax is due nine months and one day after the end of your accounting period. Your CT600 return must be filed with HMRC within 12 months of your accounting period end. HC-Customs manages both deadlines on your behalf.

Do I need to complete a self-assessment as a company director?
Yes. All company directors must complete a personal self-assessment tax return each year, even if all income is taxed at source through PAYE. HC-Customs prepares and files director self-assessment returns as part of our service.

What is Making Tax Digital for VAT?
MTD for VAT requires all VAT-registered businesses to keep digital records and submit VAT returns using HMRC-compatible software. HC-Customs handles all MTD VAT submissions on your behalf.

Can you help if I have received an HMRC enquiry?
Yes. We represent businesses through all types of HMRC enquiry, from routine compliance checks to full investigations, handling all correspondence and negotiations on your behalf.