Taxpipe
PricingCalculatorBlogHMRC Free FilingJoin waitlist
T
Taxpipe

File your UK Corporation Tax CT600 return online. Simple, affordable, HMRC-compliant.

Product

  • Pricing
  • Tax calculator
  • HMRC free filing

Support

  • Help Centre
  • FAQ
  • Contact us
  • Blog
  • info@taxpipe.co.uk

Legal

  • Privacy policy
  • Terms of service
  • Cookie policy

© 2026 Taxpipe. All rights reserved.

HMRC-authorised CT600 filing service

← Back to Taxpipe

Blog

Plain-English guides to UK Corporation Tax and CT600 filing.

35 results for “2026”Clear search
23 February 2026

How to File CT600 Online After HMRC Free Service Closes

Step-by-step guide to filing your CT600 corporation tax return online using commercial software after HMRC discontinues its free filing service in March 2026.

ct600hmrcfilingguidecorporation-tax
23 February 2026

HMRC Free CT600 Filing Is Ending March 2026 — What You Need to Do Now

HMRC is closing its free Corporation Tax filing service on 31 March 2026. Here's what this means for your company and the cheapest alternatives.

hmrcct600filingdeadline2026
23 February 2026

HMRC Free Filing Software Is Closing March 2026 — What Now?

HMRC is shutting down its free CT600 filing service on 31 March 2026. Here's what it means for your company and the cheapest alternatives.

hmrcct600free-filingmarch-2026
23 February 2026

HMRC Free CT600 Filing Service Closing March 2026: What You Need to Do

HMRC is closing its free Corporation Tax filing service on 31 March 2026. What this means for your company and how to prepare.

hmrcct600deadlinefree-filing2026
23 February 2026

Best CT600 Filing Software UK 2026: Complete Comparison Guide

Comprehensive comparison of all CT600 filing software options in the UK for 2026. Features, pricing, pros and cons of every HMRC-recognised option.

comparisonct600softwareuk2026
23 February 2026

TinyTax Alternative: Compare CT600 Filing Software for 2026

Looking for a TinyTax alternative? Compare features, pricing, and HMRC compliance. Taxpipe offers CT600 filing at £59 with full iXBRL support.

comparisonct600softwaretinytax
23 February 2026

Dormant Company CT600: The 15-Minute Nil Return Guide (2026)

Got a dormant company? You still need to file a CT600. This 2026 guide shows you how to file a nil return in 15 minutes — even without HMRC's free service.

dormant companyCT600nil returncorporation taxHMRC2026
23 February 2026

New Director? Your First CT600 in 2026: The No-Jargon Guide

Just incorporated a limited company? This plain-English guide covers everything new directors need to know about filing their first CT600 in 2026.

CT600corporation taxnew directorfirst yearlimited companybeginner guide2026
23 February 2026

HMRC Free CT600 Deadline March 2026: Action Plan

HMRC's free CT600 filing service ends 31 March 2026. Here's exactly what to do if you've just found out — step-by-step, no panic required.

HMRCCT600corporation taxfiling deadlineMarch 2026free filing
23 February 2026

File CT600 After HMRC Free Service Closes (2026)

HMRC's free CT600 service closes March 2026. Step-by-step guide to filing your corporation tax return from April 2026 using commercial software.

CT600corporation taxHMRCfiling guideApril 2026step by step
23 February 2026

HMRC Free CT600 Filing Is Closing March 2026: What Are Your Options?

HMRC is withdrawing its free CT600 filing service on 31 March 2026. Learn what this means for your company, your options for filing after the deadline, and how to switch to affordable software before it closes.

HMRCfree filingCT600March 2026corporation taxalternativesdeadlineTaxpipe
22 February 2026

Research & Development (R&D) Tax Credits on CT600: SME Guide 2026

Complete guide to claiming R&D tax credits on your CT600. Covers the merged R&D scheme, qualifying expenditure, CT600L supplementary page, HMRC compliance checks, and cash credits vs tax reduction.

ct600R&D tax creditsresearch and developmentCT600Lcorporation tax
← PreviousPage 1 of 3Next →