• 14 July 2017 (23^rd July 2017 for online payment and filing):

P30 Monthly Return and payment for June 2017

• 19 July 2017 (23^rd July 2017 for online payment and filing):

Bi-monthly VAT 3 Return and payment for the period May/June 2017

•  21 July 2017 (23^rd July 2017 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 October 2017

• 21 July 2017 (23^rd July 2017 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 August 2017

• 21 July 2017:

Form 46G for companies with accounting periods ending 31 October 2016

• 14 June 2017 (23^rd June 2017 for online payment and filing):

P30 Monthly Return and payment for May 2017

•  21 June 2017 (23^rd June 2017 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 30 September 2017

• 21 June 2017 (23^rd June 2017 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 July 2017

• 21 June 2017:

Form 46G for companies with accounting periods ending 30 September 2016

• 21 February 2017 (23^rd February 2017 for online payment and filing):

P30 Monthly Return and payment for January 2017

•  19 February 2017 (23^rd February 2017 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 May 2016

• 21 February 2017 (23^rd February 2017 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 March 2017

• 28 February 2017:

Form 46G for companies with accounting periods ending 31 May 2016

• 21 January 2017 (23^rd January 2017 for online payment and filing):

P30 Monthly Return and payment for December 2017

•  19 January 2017 (23^rd January 2017 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 30 April 2016

• 21 January 2017 (23^rd January 2017 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 Febraury 2017

• 31 January 2017:

Form 46G for companies with accounting periods ending 30 April 2016

• 21 December 2016 (23^rd December 2016 for online payment and filing):

P30 monthly return and payment for November 2016

•  19 December 2016 (23^rd December 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 March 2016

• 21 December 2016 (23^rd December 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 January 2017

• 31 December 2016:

Form 46G for companies with accounting periods ending 31 March 2016

• 14 November 2016 (23^rd November 2016 for online payment and filing):

P30 monthly return and payment for October 2016

•      19 November 2016 (23^rd November 2016 for online payment and filing):

Bi-monthly VAT 3 Return and payment for the period September/October 2016

• 21 November 2016 (23^rd November 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 28 February 2016

• 21 November 2016 (23^rd November 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 December 2016

• 30 November 2016:

Form 46G for companies with accounting periods ending 28 February 2016

• 21 October 2016 (23^rd October 2016 for online payment and filing):

P30 monthly return and payment for September 2016

•  19 October 2016 (23^rd October 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 January 2016

• 21 October 2016 (23^rd October 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 30 November 2016

• 31 October 2016:

Form 46G for companies with accounting periods ending 31 January 2016

• 14 September 2016 (23^rd September 2016 for online payment and filing):

P30 monthly return and payment for August 2016

•      19 September 2016 (23^rd September 2016 for online payment and filing):

Bi-monthly VAT 3 Return and payment for the period July/August 2016

• 21 September 2016 (23^rd September 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 December 2015

• 21 September 2016 (23^rd September 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 October 2016

• 30 September 2016:

Form 46G for companies with accounting periods ending 31 December 2015

• 21 August 2016 (23^rd August 2016 for online payment and filing):

P30 monthly return and payment for July 2016

•  19 August 2016 (23^rd August 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 30 November 2015

• 21 July 2016 (23^rd July 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 30 September 2016

• 31 August 2016:

Form 46G for companies with accounting periods ending 30 November 2015

• 14 July 2016 (23^rd July 2016 for online payment and filing):

P30 monthly return and payment for June 2016

•      19 July 2016 (23^rd July 2016 for online payment and filing):

Bi-monthly VAT 3 Return and payment for the period May/June 2016

• 21 July 2016 (23^rd July 2016 for online payment and filing):

Corporation Tax Return CT 1 and final payment for companies with accounting periods ending 31 October 2015

• 21 July 2016 (23^rd July 2016 for online payment and filing):

Preliminary Corporation Tax due (where liability is less than €200,000) for accounting periods ending 31 August 2016

• 31 July 2016:

Form 46G for companies with accounting periods ending 31 October 2015