Corporation tax that works for you, not against you
From filing your CT600 to building a long-term tax strategy, Hulljady Chartered Accountants helps UK limited companies stay compliant and keep more of what they earn.
WHAT WE DO
Corporation tax services for limited companies
Whether you’re a start-up filing your first return or an established business managing a complex tax position, we have the expertise to help.
CT600 Preparation
Accurate preparation of your company tax return with full supporting computations, submitted to HMRC on time and in the right format.
Tax Planning & Strategy
Proactive advice on structuring your business, dividends, and capital transactions to legally minimise your corporation tax liability.
R&D Tax Relief Claims
If your company innovates in technology, engineering, science, or software, you may qualify for significant R&D tax credits.
Capital Allowances
Claiming the Annual Investment Allowance and full expensing on qualifying capital expenditure & reducing your taxable profits significantly.
Loss Relief & Carry-Back
We identify all available relief options & carry-back, group relief, or carrying forward & to recover tax or reduce future bills.
HMRC Enquiry Support
If HMRC opens an enquiry into your corporation tax return, we act as your agent throughout & managing correspondence and protecting your position.
KEY DATES
Corporation tax deadlines you must not miss
Missing an HMRC deadline triggers automatic penalties and interest. These are the key dates for every UK limited company.
SAVE MORE TAX
Reliefs and allowances your company could be missing
Many UK businesses pay more corporation tax than they need to because they overlook legitimate reliefs. Here are some of the most valuable.
Annual Investment Allowance
A 100% first-year deduction on up to £1 million of qualifying plant and machinery expenditure. Significantly reduces taxable profits in the year of purchase.
R&D Tax Credits (SME & RDEC)
SMEs can claim enhanced deductions or cash credits on qualifying R&D costs. The merged RDEC scheme applies from April 2024 for most companies.
Creative Industry Tax Reliefs
Film, TV, video games, theatre, and music productions may qualify for sector-specific enhanced reliefs, offering substantial savings for qualifying companies.
Structures & Buildings Allowance
A 3% annual deduction on the cost of constructing or renovating qualifying commercial buildings. Particularly valuable for property-holding companies.
Group Relief
Where one group company makes a loss, it can surrender that loss to a profitable group company, reducing the profitable company’s corporation tax bill.
Director Pension Contributions
Employer pension contributions are fully deductible against corporation tax (subject to conditions), making them one of the most tax-efficient ways to extract profits.
WHY HULLJADY
Chartered accountants who take your tax personally
We’re not a faceless national firm. Every client has a named, qualified accountant who understands their business — and picks up the phone when it matters.
- ICAEW-qualified accountants on every file
- No surprise bills — transparent, fixed-fee pricing
- Proactive tax planning, not just annual compliance
- Experience across all sectors and company sizes
- HMRC agent access — we liaise directly on your behalf
COMMON QUESTIONS
Corporation tax — frequently asked questions
When does my company have to pay corporation tax?
For most small and medium-sized companies, corporation tax must be paid 9 months and 1 day after the end of your accounting period. For example, if your year-end is 31 March, payment is due by 1 January the following year. Large companies — broadly those with profits over £1.5 million — must pay in quarterly instalments during the accounting period itself.
What is the difference between corporation tax and income tax?
Corporation tax is charged on the profits of limited companies and certain other organisations. Income tax, by contrast, is charged on individuals — including sole traders and partners in a partnership, who pay income tax on their business profits rather than corporation tax. Directors and employees pay income tax on their salaries via PAYE.
Do I need to file a CT600 if my company made no profit?
Yes. Every active UK limited company must file a corporation tax return (CT600) for each accounting period, regardless of whether it made a profit or a loss. If the company is dormant, you can apply to HMRC for dormancy confirmation, but even then you may still need to file statutory accounts with Companies House.
What records do I need to keep for corporation tax?
HMRC requires you to keep business records for at least 6 years from the end of the accounting period they relate to. This includes invoices, receipts, bank statements, payroll records, and records of any assets purchased or sold. For R&D claims, it is particularly important to document qualifying activities contemporaneously.
Can I claim the cost of my home office against corporation tax?
Yes, subject to conditions. A company can pay a director or employee a use-of-home allowance, which is deductible for corporation tax. HMRC publishes approved flat rates, but a more tailored calculation can often justify a higher claim. Hulljady can help establish a compliant and defensible figure for your circumstances.
READY TO GET STARTED?
Let's make sure you're not paying a penny more than you should
Book a free, no-obligation consultation with one of our chartered accountants. We’ll review your current position and tell you exactly how we can help.
2025/26 TAX YEAR
Current UK corporation tax rates
Since April 2023, corporation tax is no longer one-size-fits-all. The rate your company pays depends on its annual taxable profits.