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.

184 results for “ct600”Clear search
21 February 2026

Corporation Tax on Bank Interest: How It Works

How is bank interest taxed for UK limited companies? Learn the CT600 treatment, reporting requirements, and how to reduce your corporation tax on savings interest.

corporation taxbank interestct600loan relationshipsnon-trading incomehmrclimited company
21 February 2026

Corporation Tax Relief on Charity Donations

How to claim corporation tax relief on charitable donations. Covers qualifying payments, Gift Aid, non-cash gifts, and how to report donations on your CT600.

charity donationscorporation tax reliefct600gift aidqualifying donationslimited companyhmrc
21 February 2026

Flat Rate VAT Scheme & Corporation Tax

How the Flat Rate VAT Scheme affects your corporation tax. Learn about the VAT surplus, how to report it on your CT600, and whether the scheme still saves money.

flat rate vatvat schemecorporation taxct600vat surpluslimited companyhmrc
21 February 2026

Electric Company Cars: Corporation Tax 2025

Buy an electric car through your company and claim 100% first-year allowance. Learn about BIK rates, capital allowances, and CT savings for EVs in 2025/26.

electric vehiclecompany carcorporation taxcapital allowancesbenefit in kindbikevct6002025
21 February 2026

HMRC Penalties for Late Corporation Tax Filing

What are the penalties for filing your CT600 late? Understand HMRC penalty rates, interest charges, and how to avoid or appeal late filing penalties.

hmrc penaltieslate filingcorporation taxct600interest chargesappeallimited company
21 February 2026

Accountant vs DIY CT600 Filing: Honest Comparison

Should you pay an accountant or file your CT600 yourself? An honest comparison of costs, time, risks, and when each option makes sense for UK limited companies.

ct600accountantdiy filingcorporation taxlimited companyself-filingtaxpipe
21 February 2026

CT600 Filing Agent Authorisation with HMRC

How to authorise an agent to file your CT600. Step-by-step guide to HMRC agent authorisation for corporation tax — online, by post, and what to do if things go wrong.

ct600hmrcagent authorisationcorporation taxfiling agentaccountantgovernment gateway
21 February 2026

Corporation Tax for Investment Companies

How does corporation tax work for investment companies? Guide to holding investments through a limited company — dividends, capital gains, property, and filing your CT600.

corporation taxinvestment companyholding companydividendscapital gainsct600property investment
21 February 2026

UK Corporation Tax Rates: Complete History

Complete history of UK corporation tax rates from 1965 to 2026. See how rates have changed, key reforms, and what current rates mean for your limited company.

corporation taxtax ratesuk tax historyct600limited companyhmrcmarginal relief
21 February 2026

HMRC CT600 Online vs Software: Which Is Better?

Compare filing your CT600 through HMRC online vs commercial software. Learn the pros, cons, costs, and which option saves you time and money in 2026.

ct600hmrcfiling softwarecorporation taxonline filingtaxpipelimited company
21 February 2026

Corporation Tax on Rental Income: CT600 Guide

How is rental income taxed in a limited company? Learn how property income works on your CT600, allowable deductions, and when a property company makes sense.

corporation taxrental incomeproperty incomect600buy to letproperty companylimited company landlord
21 February 2026

Employer NIC: Corporation Tax Deduction Guide

Is employer NIC an allowable deduction for corporation tax? Yes. Learn how employer National Insurance works, current rates, the Employment Allowance, and how to claim on your CT600.

employer nicnational insurancecorporation taxallowable expensesemployment allowancect600payroll
← PreviousPage 10 of 16Next →