Blog Post

When do I pay Capital Gains Tax on my property? 

Laura Arbuckle • Aug 30, 2019

If you own a rental property or a second home, then you need to be aware of changes to the capital gains tax regime for UK resident individuals.

When do I pay Capital Gains Tax at the moment?

When you sell your main or only residence, there is usually full relief from capital gains tax so you have nothing to pay and no return to complete. This isn't the case if you sell a second property. Under the current regime, capital gains tax for individuals is calculated as part of the self-assessment return and any tax is payable at the same time as the return is submitted. This means that if you sell a rental property right at the beginning of a tax year, you are not required to make any submissions or payments until almost 22 months later. In addition, you currently don’t have to pay any tax on the first £12,000 of capital gains in the tax year.

What is changing?

From April 2020, the deadline for reporting and paying capital gains tax is reducing drastically to just 30 days after the sale. You may not even know whether you are going to be a higher rate taxpayer at the time the payment is due so you may need to use reasonable estimates to calculate the amount of tax to be paid. The latest CGT rates can be found here. If you do need to make any adjustments to your original estimate, they will be made through the annual self-assessment return. Thankfully, if there is no tax due to be paid then no report is required, but it may be sensible to complete the calculation to know that it doesn’t need to be submitted!

CGT changes April 2020

Is anything else changing?

At the same time as having to pay the tax faster, two of the more generous reliefs available to some landlords is also reducing. Lettings relief is currently available up to a maximum of £40,000 to landlords that rent out a property that they have previously lived in as their main residence. From April 2020, this relief will only be available where you have lived in your property at the same time as your tenant.

Not only that, the last 18 months of owning the property are currently exempt from capital gains tax whereas in the future this will be reduced to just the last 9 months, again leaving you with a higher tax bill.

These changes mean that if you are selling a rental property that you have previously lived in you will be expected to pay more tax and sooner!

What should I do?

If you are planning to sell a rental property, you need to be aware that you may need to act quickly to submit a return and pay some tax. If you have an accountant, keep them informed of the progress on the sale so they can be available to help if need be.

In order to calculate the amount of tax that may be due and decide whether a return is required, you will need to have the following information to hand:


  • Property purchase price

  • Cost of any improvements made

  • Date of purchase

  • Any dates you lived in the property yourself

There is no need to wait to collate this information, it can be gathered well before the sale takes place.

Andrea from Armet Accounting
By Andrea Dow 05 Apr, 2024
My name is Andrea Dow. I am originally from East Kilbride but moved to Lanark when I got married. Its semi-rural and my husband and I are very happy there. We enjoy all things outdoors – cycling, hillwalking, a bit of scrambling, snowboarding but I also love the gym too.
I’ve sold a property, do I need to do a Capital Gains Tax return?
By Laura Arbuckle 01 Feb, 2024
My residential landlord clients would probably tell you that they are fed up of hearing about HMRC’s latest requirements for reporting Capital Gains Tax. At every accounts review meeting I make sure they are fully aware that in the event they sell their residential rental property, they must complete a return and pay any tax that is likely to be due within 60 days of the sale being agreed.
How do I move from a sole trade to a company?
By Laura Arbuckle 17 Aug, 2023
How you structure your business is really a personal preference. Find out more about why you may want to operate through a company and how you move your sole trade business into a company easily.
I'm behind on my tax returns, what should I do?
By Laura Arbuckle 09 Aug, 2023
After moving his sole trade business to a limited company, William struggled to connect with his then bookkeeper and became late submitting his tax returns. Keep reading to find out how we managed to get his late tax returns submitted and get the company back on track.
Can my mum help with my bookkeeping?
By Laura Arbuckle 04 Apr, 2023
We’ve all seen the adverts from the big players in the bookkeeping arena recently. QuickBooks and Xero are going to do all your business record keeping for you. What they don’t tell you is that even with the help of software, it still needs your input to ensure you get the right answers.
What happens if I ask for help with my self-assessment return?
By Laura Arbuckle 21 Jun, 2022
If you are juggling your work-life balance, we can help you to find more time for yourself by helping you with your self-assessment return. You may be wondering how that might work in practice. I can’t speak for every accountant or payroll operator but in this blog post I describe how the process works at Armet Accounting.
Accountant reviewing VAT return
By Laura Arbuckle 20 Apr, 2022
When you ask someone else to produce your company accounts and tax return for you, you may wonder how that might work in practice. In this blog post I describe how the process works at Armet Accounting.
What goals should I set for myself?
By Laura Arbuckle 23 Mar, 2022
We all know that at the start of the year we should be setting goals and they should be “SMART”, that is Specific, Measurable, Achievable, Realistic and Timebound (or even SMARTER if you are going to Evaluate and Review them). What happens if our goals don't drive the right decisions?
How do I register my business?
By Laura Arbuckle 01 Dec, 2021
If you’ve never been a business owner before, it can be a daunting prospect to set up on your own. It can be hard to know where to start. It’s actually not hard to set up a business, but there are a few things that you need to consider in order to get your business up and running.
Ursula Hogan - Bookkeeper
By Ursula Hogan 10 May, 2021
Urusla Hogan keeps on top of all the client data. With many years of bookkeeping experience, she knows how to ensure your business transactions are recorded properly!
Show More
Share by: