-
CALL US 0203 883 4777
Tax Diary for December 2020/January 2021
Tax Diary for December 2020/January 2021
1 December 2020 – Due date for Corporation Tax payable for the year ended 28 February 2020.
19 December 2020 – PAYE and NIC deductions due for month ended 5 December 2020. (If you pay your tax electronically the due date is 22 December 2020)
19 December 2020 – Filing deadline for the CIS300 monthly return for the month ended 5 December 2020.
19 December 2020 – CIS tax deducted for the month ended 5 December 2020 is payable by today.
30 December 2020 – Deadline for filing 2019-20 self-assessment tax returns online to include a claim for under payments to be collected via tax code in 2021-22.
1 January 2021 – Due date for Corporation Tax due for the year ended 31 March 2020.
19 January 2021 – PAYE and NIC deductions due for month ended 5 January 2021. (If you pay your tax electronically the due date is 22 January 2021)
19 January 2021 – Filing deadline for the CIS300 monthly return for the month ended 5 January 2021.
19 January 2021 – CIS tax deducted for the month ended 5 January 2021 is payable by today.
31 January 2021 – Last day to file 2019-20 self-assessment tax returns online.
31 January 2021 – Balance of self-assessment tax owing for 2019-20 due to be settled on or before today unless you have elected to extend this deadline by formal agreement with HMRC. Also due is any first payment on account for 2020-21.
Tax Diary for December 2020/January 2021
Recent Posts
All You Need to Know About Companies House Late Account Filing Penalties for Private, Public Companies and LLPs
Companies House late filing penalties remain a significant concern for private companies, public companies, and LLPs across the UK. Missing...
Business Rates Hikes and Their Impact on UK Hotels and Accommodation Providers
The recent increase in business rates has placed a heavy financial burden on the UK’s hospitality sector, particularly on hotels...
HMRC Tax Investigations for Celebrity Booking Agencies: Prevention Through Compliance
Celebrity booking agencies manage high-value contracts, varied income streams, and multiple payment routes. These factors can increase reporting complexity and...
Payroll and Pensions Compliance for Celebrity Booking Agencies: Auto-Enrolment and Beyond
Celebrity booking agencies work with agents, in-house staff, support teams and short-term performers. Managing pay and pensions is complex, which...
HMRC Tax Investigations for Theme Parks: What Operators Should Do Right Now
UK theme parks operate in a high-turnover, cash-heavy environment. From turnstile ticketing and ride photography to food kiosks, hotel packages,...
A Guide To Key KPIs for Theme Park Management in UK
Running a theme park in the UK is a high-pressure operation. From ride maintenance and energy usage to food sales...
A Guide to HMRC’s Advance Tax Certainty Service for UK Investment Projects
In December 2025, HMRC released the much-anticipated draft guidance on Advance Tax Certainty Service (ATCS), a new process legislated under...
Understanding HMRC Penalty Suspension Requests: Insights from the Cox v HMRC Case
The recent ruling in Cox v HMRC from the Upper Tribunal (UT) provides important clarification on how UK taxpayers can...
HMRC has launched a £40 million enforcement campaign targeting sellers on Vinted and eBay.
As more UK residents turn to platforms like Vinted, eBay, and Etsy to declutter their homes and earn extra cash,...
What You Need To Know About New Charges for ISA Savers
In the Autumn Budget 2025, the UK government, led by Chancellor Rachel Reeves, introduced reforms to Individual Savings Accounts (ISAs)...