Corporation Tax Deadline Calculator
Calculate your company's important filing and payment deadlines based on your financial year end date
Annual Accounts Filing Deadline
File annual accounts with Companies House
Corporation Tax Payment Deadline
Pay Corporation Tax to HMRC (or notify that no payment is due)
Company Tax Return Filing Deadline
File Company Tax Return (CT600) with HMRC
Important Notes:
• These deadlines are based on standard UK Corporation Tax rules
• Large companies may have different payment deadlines
• Always verify with HMRC or consult a qualified accountant
• Late filing or payment may result in penalties and interest charges
