Property Company CT600
For buy-to-let, property investment, and property holding companies — file CT600 with property-specific calculations
Why Use This Feature?
How It Works
Search for your property company on the homepage
Enter property income, expenses, and any other income
TinyTax computes property net profit and applies losses brought forward
Review the CT600 with the right boxes populated (Box 190 property income, Box 250 property losses)
Submit accounts to Companies House and CT600 to HMRC
Who Benefits?
Buy-to-Let Companies
Holding rental properties through a limited company for tax efficiency? TinyTax files the CT600 and accounts every year.
Property Investment Companies
Companies set up to hold and let UK property — including those with property losses brought forward from earlier years.
Switching from Self-Assessment
Recently incorporated your property portfolio? File the first company year-end with TinyTax — no specialist software required.
Frequently Asked Questions
Does TinyTax support property losses brought forward?
Yes. Property losses from earlier periods can be carried forward and applied against current property income (Box 250). TinyTax tracks the loss balance year on year.
What about the property business commencement date?
For new property companies, HMRC requires the property business commencement date (typically the date of first letting). TinyTax prompts for this and applies the right rules to the period.
Can I claim mortgage interest as an expense?
Property companies (corporation tax) can deduct mortgage interest as a business expense — unlike individual landlords on self-assessment, who are restricted by the Section 24 rules. TinyTax treats interest as a deductible expense.
Do you have a guide explaining property company corporation tax?
Yes — see the in-depth guide on property companies and corporation tax for the full rules. This page is about how TinyTax handles the filing.
Ready to Get Started?
Join hundreds of UK micro-entities using TinyTax to file CT600 and accounts
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