Taxvie
Home / File Your CT600 Without an Accountant | Taxvie
DIY Corporation Tax

File Your CT600 Directly With HMRC

Discover how UK businesses can manage their Corporation Tax filings efficiently and accurately using Taxvie software, bypassing the need for an external accountant.

Filing Your CT600 Without an Accountant

Managing your company's Corporation Tax Self Assessment (CTSA) is a key responsibility for UK businesses. The CT600 form is the official document used to report your company's taxable profits and calculate the Corporation Tax due to HMRC. While many businesses use accountants, it's entirely possible to file your CT600 directly, especially with the right software and understanding of the process. Taxvie supports businesses in preparing and submitting their CT600 forms accurately and efficiently, empowering you to manage your tax obligations in-house.

Benefits of Direct CT600 Filing

Filing your CT600 without an accountant can offer several advantages for small to medium-sized businesses and startups. It can lead to significant cost savings by eliminating accountant fees. Furthermore, managing the process in-house provides greater control over your tax submissions, allowing for direct oversight and a deeper understanding of your company's financial position. This direct engagement can also streamline communication with HMRC and ensure timely submissions, avoiding potential penalties.

Key Steps in Filing Your CT600

Successfully filing your CT600 directly involves several crucial steps. Ensure you have the necessary information and understand the requirements:

Using Software for Direct Filing

Specialised software is essential for efficiently preparing and submitting your CT600 without an accountant. Taxvie helps you navigate the complexities of Corporation Tax filing. Our platform supports the preparation of company accounts and the CT600 form, ensuring compliance with HMRC's iXBRL tagging requirements. Features include data import, error checking, and direct submission capabilities, making the process manageable for businesses of all sizes.

Common Pitfalls to Avoid

When filing your CT600 directly, it's important to be aware of common errors that can lead to delays or penalties. These often include incorrect calculations of taxable profits, misapplication of tax reliefs, errors in iXBRL tagging, and missing the submission deadline. Thoroughly reviewing your figures and using software with built-in validation checks can significantly reduce the risk of these mistakes.

Ready to File Your CT600?

Take control of your company's Corporation Tax. Try Taxvie today to prepare, review, and submit your CT600 form with confidence.

Start Filing Your CT600

Frequently asked questions

Can I really file my CT600 without an accountant?

Yes, UK businesses can file their CT600 directly with HMRC. With the right understanding of the process and the support of dedicated software like Taxvie, you can manage your Corporation Tax submissions accurately and efficiently in-house.

What information do I need to file the CT600?

You will need your company's financial records, including profit and loss statements, balance sheets, details of capital allowances, and any relevant tax reliefs. Accurate preparation of your company accounts is also essential.

What is iXBRL tagging for the CT600?

iXBRL (Inline eXtensible Business Reporting Language) is a format required by HMRC for submitting company accounts and tax data. It makes financial information machine-readable, allowing for easier analysis by HMRC. Taxvie software supports the iXBRL tagging process.

What are the deadlines for filing the CT600?

The standard deadline for filing your company's CT600 and paying Corporation Tax is 9 months and 1 day after the end of your company's accounting period. It's crucial to meet this deadline to avoid penalties.

How does Taxvie help with direct CT600 filing?

Taxvie provides software that assists in preparing company accounts and the CT600 form. It includes features for data import, calculation, iXBRL tagging, and direct submission to HMRC, simplifying the DIY filing process.

Explore Taxvie

Start Filing Your CT600

Updated 2026-05-24