Accounts and Corporation Tax Return London
Get reliable accounting and corporation tax return services tailored for London businesses. We ensure accuracy, timely submissions, and full compliance, so you can focus on growing your business stress-free.
Accounts & Corporation Tax Returns in London
Year-end accounts and the CT600 don’t have to drain your time. Accountactical prepares accurate statutory accounts and corporation tax returns for London businesses — from start-ups to established companies — filed on time with every allowance and relief properly claimed.
- ✓Statutory accounts and CT600 prepared and filed digitally
- ✓Allowances and reliefs reviewed so you never overpay
- ✓HMRC registration and deadlines handled end to end
- ✓Advice in plain English from qualified tax advisers
Corporation tax at a glance
- ✓Applies to limited companies and organisations trading in the UK
- ✓Profits taxed at the small profits rate or 25% main rate, with marginal relief in between
- ✓The CT600 must be filed digitally through HMRC-approved software
What’s Included in Our Accounts & Tax Service?
Statutory Accounts
Year-end accounts prepared accurately and on time for Companies House and HMRC.
CT600 Preparation & Filing
Your company tax return completed and submitted digitally through approved software.
Allowances & Reliefs
Capital allowances, R&D and other reliefs reviewed to legitimately reduce your bill.
Tax-Adjusted Profits
Accounting profits correctly adjusted for HMRC, so your figures stand up to scrutiny.
Registration & Deadlines
Corporation tax registration, payment dates and filing deadlines all managed for you.
Marginal Relief Planning
Profit levels reviewed so the right rate and relief apply to your company each year.
How We Handle Your Corporation Tax Return
Gather
Records collected and reconciled from your bookkeeping or accounting software.
Prepare
Statutory accounts drafted and profits tax-adjusted for HMRC.
Optimise
Allowances and reliefs applied, and the full calculation double-checked.
File
CT600 and accounts submitted digitally, with confirmations kept on record.
Why Choose Our Corporation Tax Advisors?
- ✓Qualified team with years of corporation tax experience
- ✓Every legitimate allowance and relief considered, every year
- ✓Digital-first filing through HMRC-approved software
- ✓Deadlines tracked so late-filing penalties never happen
- ✓Fixed fees and straight answers, whatever your company size
More than compliance
A good corporation tax return is planning, not paperwork — reviewing profit extraction, timing and reliefs before the year closes. We look ahead so the next bill is smaller than the last.
Free tool: Estimate your company’s 2026/27 bill in seconds with our free corporation tax calculator, including marginal relief.
What our clients say
“I was completely lost with declaring rental income and expenses. Accountactical guided me step by step, explained everything clearly, and even helped me save money.”
“Dealing with property tax felt overwhelming, but their expert team made it simple. Professional, approachable and accurate. I finally feel confident about compliance.”
“They understand the complexities of UK tax better than anyone. Their tailored advice gave me reassurance and strong financial results without unnecessary stress.”
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View all servicesFrequently asked questions
Limited companies trading in the UK, plus some other organisations, pay corporation tax on their profits. Registration with HMRC is required when the company starts trading — we handle it for you.
The CT600 is the company tax return filed with HMRC alongside your accounts and tax computations. It must be filed digitally through approved software — paper returns are not accepted.
It depends on profits: smaller companies pay the small profits rate, larger ones the 25% main rate, and marginal relief bridges the gap. We calculate the exact position and plan around it.
Usually, yes — capital allowances, R&D relief and careful timing all legitimately reduce the bill. We review every available relief as standard when preparing your return.
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Speak to an ACCA-qualified specialist today. Clear advice, fixed pricing and a plan you can act on.