Corporation Tax Payment Deadline
30th September 2025 – For accounting period ending 31st December 2024
If your company’s financial year ended on 31st December 2024, your Corporation Tax must be paid to HMRC by 30th September 2025.
📌 Key Points to Remember
Corporation Tax is due 9 months and 1 day after the end of your company’s accounting period.
For a year-end of 31st December 2024, the deadline falls on 30th September 2025.
Even if you cannot pay on time, you must still file your Company Tax Return (CT600) and accounts by their statutory deadlines.
⚠️ What Happens if You Miss the Deadline
HMRC will charge interest on late payments.
Persistent late payments may result in penalties and increased scrutiny from HMRC.
💡 Tips for Businesses
Plan ahead to ensure cash is available for Corporation Tax when it falls due.
Consider setting aside funds throughout the year to avoid last-minute cash flow issues.
If you expect difficulty paying, contact HMRC as soon as possible — they may agree to a Time to Pay arrangement.
✅ How JDH Accounting Solutions Can Help
At JDH Accounting Solutions, we make Corporation Tax simple by:
Calculating your tax liability accurately and in good time.
Preparing and filing your Company Tax Return (CT600).
Advising on legitimate tax reliefs and allowances to reduce your bill.
Sending you reminders of key deadlines so you never miss them.
Paying Corporation Tax on time not only avoids unnecessary interest and penalties, but also keeps your business financially healthy and compliant.