Filing deadlines calendar

Overview

Missing a filing deadline is costly — penalties range from automatic fines to criminal prosecution for serious cases. AccBooks tracks all your deadlines and sends you advance reminders.

Annual deadlines

Companies House

Filing	Deadline
Annual accounts	9 months after accounting period end (first accounts: 21 months from incorporation)
Confirmation statement	14 days after the review period end date (annually)
Director appointment (AP01)	14 days of appointment
Director resignation (TM01)	14 days of resignation
Change of registered office (AD01)	Before or at time of change
Share allotment (SH01)	1 month of allotment
PSC change	14 days of change

HMRC — Corporation Tax

Filing	Deadline
Corporation tax payment	9 months and 1 day after accounting period end
CT600 (tax return)	12 months after accounting period end
Research & Development claim	2 years after accounting period end

HMRC — VAT

Filing	Deadline
VAT return	1 month and 7 days after quarter end
VAT payment (direct debit)	3 days after the filing deadline
VAT registration	When turnover exceeds £90,000 threshold
De-registration	Within 30 days of dropping below threshold

HMRC — PAYE

Filing	Deadline
Full Payment Submission (FPS)	On or before each payment date
Employer Payment Summary (EPS)	19th of the following month
PAYE/NI payment	22nd of following month (electronic); 19th (cheque)
P60 issue to employees	31 May following tax year end
P11D filing	6 July following tax year end
Class 1A NI payment	22 July following tax year end
CIS monthly return	19th of following month

HMRC — Payroll year-end (5 April)

Task	Deadline
Process final payroll run	On or before 5 April
Mark FPS as “Year is complete”	5 April
Generate and distribute P60s	31 May
File P11D and P11D(b)	6 July

Setting up deadline reminders in AccBooks

AccBooks generates all your filing deadlines automatically based on:

• Your accounting period end date (Settings → Company → Financial year)
• Your VAT filing frequency (Settings → VAT → Filing frequency)
• Your payroll pay dates (Payroll → Settings)

Go to Deadlines in the left sidebar to see all upcoming deadlines in one calendar view. Click Add to calendar to export to Google Calendar, Outlook or Apple Calendar.

You can configure email reminders under Settings → Notifications → Filing reminders — choose how many days before each deadline you want to be alerted.

Penalties summary

Filing	Penalty for late
CT600 (up to 3 months late)	£100
CT600 (3–6 months late)	£200 +
Companies House accounts	£150–£1,500 (escalating)
P11D	£300 per form + daily penalties
Confirmation statement	Strike-off risk
VAT (persistent late filer)	Default surcharge regime

Late payment interest also accrues on HMRC debts from the due date.