{"id":245,"date":"2026-09-09T15:04:48","date_gmt":"2026-09-09T15:04:48","guid":{"rendered":"https:\/\/ashfield-accountancy.co.uk\/?p=245"},"modified":"2026-09-09T15:04:48","modified_gmt":"2026-09-09T15:04:48","slug":"tax-diary-september-october-2026","status":"publish","type":"post","link":"https:\/\/ashfield-accountancy.co.uk\/?p=245","title":{"rendered":"Tax Diary September\/October 2026"},"content":{"rendered":"<div>\n<p>1 September 2026 &#8211; Due date for corporation tax due for the year ended 30 November 2025.<\/p>\n<p>\u00a0<\/p>\n<p>19 September 2026 &#8211; PAYE and NIC deductions due for month ended 5 September 2026. (If you pay your tax electronically the due date is 22 September 2026)<\/p>\n<p>\u00a0<\/p>\n<p>19 September 2026 &#8211; Filing deadline for the CIS300 monthly return for the month ended 5 September 2026.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>19 September 2026 &#8211; CIS tax deducted for the month ended 5 September 2026 is payable by today.<\/p>\n<p>\u00a0<\/p>\n<p>1 October 2026 &#8211; Due date for Corporation Tax due for the year ended 31 December 2025.<\/p>\n<p>\u00a0<\/p>\n<p>19 October 2026 &#8211; PAYE and NIC deductions due for month ended 5 October 2026. (If you pay your tax electronically the due date is 22 October 2026)<\/p>\n<p>\u00a0<\/p>\n<p>19 October 2026 &#8211; Filing deadline for the CIS monthly return for the month ended 5 October 2026.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>19 October 2026 &#8211; CIS tax deducted for the month ended 5 October 2026 is payable by today.<\/p>\n<p>\u00a0<\/p>\n<p>31 October 2026 &#8211; Latest date you can file a paper version of your 2025-26 self-assessment tax return.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1 September 2026 &#8211; Due date for corporation tax due for the year ended 30 November 2025. \u00a0 19 September 2026 &#8211; PAYE and NIC deductions due for month ended 5 September 2026. (If you pay your tax electronically the due date is 22 September 2026) \u00a0 19 September 2026 &#8211; Filing deadline for the [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-245","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=245"}],"version-history":[{"count":0,"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/245\/revisions"}],"wp:attachment":[{"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ashfield-accountancy.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}