Running a startup is an exciting journey filled with innovation, growth, and endless to-do lists. However, amidst all the creativity and hustle, paying corporation tax is one critical aspect often overlooked.
Navigating this area can feel like a maze, especially for first-time entrepreneurs. But fear not. This guide breaks down everything you need to know about paying corporation tax as a startup.
What is Corporation Tax?
Corporation Tax is a direct tax that businesses pay on their profits to HM Revenue and Customs (HMRC). Whether running a tech startup or a small boutique, you must pay this tax if your company generates taxable profits in the UK. Understanding your obligations is vital to avoid unnecessary penalties or stress.
Corporation Tax applies to profits made by:
- Limited companies.
- Foreign companies with a UK branch or office.
- Clubs, co-operatives, and unincorporated associations like community or sports groups.
Profits subject to Corporation Tax
Taxable profits include:
- Trading profits from doing business.
- Profits from investments.
- Chargeable gains when you sell assets for more than they cost.
If your company is a UK tax resident, it pays Corporation Tax on all its global profits. Only profits from UK activities are taxed for non-UK resident companies with a UK branch or office.
Why paying Corporation Tax matters for startups
Paying corporate tax is more than just a box to tick. It’s a critical responsibility for startups. Missing payments or deadlines can lead to significant fines and legal issues. Get it right and timely payment of corporate tax helps build financial credibility, a vital factor for startups looking to attract investment and fuel their growth.
Penalties for Late Filing
Missing your Corporation Tax filing deadline can result in escalating penalties:
- 1 day late: £100 fine.
- 3 months late: An additional £100 fine.
- 6 months late: HMRC estimates your Corporation Tax bill and adds a 10% penalty to the unpaid tax.
- 12 months late: Another 10% penalty on any unpaid tax.
- If you’re late three times in a row, the £100 penalties increase to £500 each.
For returns that are more than 6 months late, HMRC will issue a ‘tax determination,’ estimating your tax liability. You cannot appeal this. To resolve the issue, you must file your tax return, pay the tax due, and settle any interest or penalties.
Understanding your startup’s tax year and filing deadlines
Paying corporate tax is critical for startups, and understanding the filing and payment deadlines is key to staying compliant. Here’s what you need to know:
- Filing deadline: You must file your company tax return (CT600) within 12 months of the end of your accounting period.
- Payment deadline: Corporation tax is due 9 months and one day after the end of your accounting period.
Example:
If your accounting period ends on 31st December 2024:
You must pay corporation tax by 1st October 2025.
You must file your return by 31st December 2025.
When should you pay corporation tax?
Knowing when to pay is just as important as filing on time. Here’s what startups need to keep in mind:
- Payment deadline: Your corporation tax payment is tied to your accounting period, which typically aligns with your financial year.
- For new businesses: If you’ve just incorporated, inform HMRC of your trading status and prepare to pay corporation tax 9 months and one day after the end of your first accounting period.
- For ongoing businesses: For established companies, the corporation tax payment deadline remains consistent each year 9 months and one day after the end of your accounting period. If your financial year changes, you must notify HMRC, and this may alter your payment schedule.
- Accounting period: Most accounting periods are 12 months, but your first year may differ.
Why staying organised matters
Missing deadlines can lead to fines and unnecessary stress, so plan ahead:
- Mark your payment and filing deadlines in your calendar.
- Stay on top of your accounting period and financial year dates.
By staying organised and informed, you’ll keep your startup compliant and focused on growth.
First accounts and tax return for limited companies
When you set up a limited company, the reporting dates for your first annual accounts and Company Tax returns will differ. Here’s a quick overview:
Annual Accounts
Your first year end accounts typically cover over 12 months, starting from your company’s incorporation date and ending on the accounting reference date set by Companies House.
Example: If your company was established on 11 May, its accounting reference date will be 31 May the following year. This means your first accounts will cover 12 months and 3 weeks.
In subsequent years, your accounts will align with your financial year (e.g., 1st June to 31st May).
Company Tax Return
The period covered by your first tax return (your accounting period for Corporation Tax) cannot exceed 12 months, so you may need to file two tax returns to cover your first accounts.
This also means you’ll have two payment deadlines for your first year.
In future years, you’ll typically file just one tax return, which aligns with your financial year.
What determines your first tax return dates?
Your filing and payment dates depend on whether your company started trading on the same day it was incorporated or delayed trading until after it was set up.
How paying corporation tax affects your startup’s cash flow and budgeting
Paying corporate tax can significantly strain startups operating on tight budgets. However, with proper planning and cash flow management, it doesn’t have to be overwhelming.
Plan to avoid cash flow issues
Start by calculating your expected profit for the year and setting aside funds for corporation tax.
Regularly save towards your tax bill to avoid a cash crunch when payment is due.
How to pay corporation tax: A step-by-step guide for new businesses
Paying corporate tax doesn’t have to be overwhelming. With the right guidance and preparation, you can streamline the process and avoid unnecessary stress.
Here’s a step-by-step guide to help your startup navigate corporate tax payments effectively:
- Register with HMRC
- Notify HMRC that your business is active and trading upon incorporation.
- Keep accurate records
- Track all income, expenses, and profits to calculate your tax liability correctly.
- Calculate taxable profits
- Use your accounting records to calculate profits after allowable deductions.
- File your tax return
- Submit your CT600 form to HMRC within 12 months of your accounting period’s end.
- Pay Your Corporation Tax
- Pay your tax online, ensuring you use the correct 17-character payment reference number.
Example:
If your accounting period ends on 31st December 2024:
Pay corporation tax by 1st October 2025.
File your tax return by 31st December 2025.
Payment methods for corporation tax
- Online or telephone banking: Pay through Faster Payments, CHAPS, or Bacs.
- Direct debit: Set this up through your HMRC online account. Allow 5 working days for the first payment and 3 for subsequent payments.
- Debit or corporate credit card: You can pay online but note that corporate cards incur a fee.
- Bank or building society: Use a paying-in slip provided by HMRC.
- Group payments: Companies within a group can pay under a Group Payment Arrangement.
Important notes for payment
Payment reference number
Your 17-character reference number changes with each accounting period. Use the correct reference to avoid delays.
Weekend or bank holiday deadlines
If your payment is due on a non-working day, ensure it reaches HMRC by the last working day before.
Paying for multiple accounting periods
If your startup has two accounting periods in its first year, you must file two tax returns and make separate payments.
Nil to Pay
If no corporation tax is due, inform HMRC by filing a ‘nil to pay’ form.
Check payment status
Log in to your HMRC online account to confirm your payment has been received.
Ready to simplify paying corporate tax? We’re here to help.
The importance of accurate record-keeping for paying corporation tax
Accurate records are essential for calculating and paying corporation tax correctly. HMRC requires you to keep records of:
- Revenue
- Business Expenses
- Employee wages
- Bank statements
By keeping your records organised, you’ll stay HMRC compliant, gain clarity on your finances, and uncover deductions like office or R&D expenses to lower your tax liability.
Common mistakes startups make when paying corporation tax
Startups often face steep learning curves with taxes. Avoid these common mistakes:
- Missing deadlines: Late payments attract penalties and interest.
- Underestimating tax liability: Misjudging profits can leave you scrambling for funds.
- Ignoring allowances: Startups can benefit from schemes like the Annual Investment Allowance (AIA) or R&D tax credits.
Want to avoid these mistakes altogether?
Paying corporation tax is a critical responsibility for startups, but it doesn’t have to be overwhelming. By understanding your obligations, planning, and seeking professional help, you can stay compliant and keep your business thriving.
Here’s how we can help:
- Registration support: Ensuring your business is registered correctly with HMRC.
- Accurate calculations: Calculating taxable profits and identifying eligible deductions.
- Filing and payment: Handling your CT600 submission and payments.
- Proactive advice: Offering tailored guidance on tax planning and compliance.
At Rise Accounting, we’ve guided hundreds of early-stage businesses through this process and are committed to delivering unparalleled excellence. Our team is dedicated to helping startups seamlessly pay corporate tax by providing expert advice and practical solutions.
Contact our team to take the stress out of tax season!
