Yes, but you will have to pay a benefit in kind tax. That's because your company provides you with living accommodation, a personal benefit. If you pay market rent to your company, none of these applies. But in this case, your company would have to pay corporation tax on the rent. Also, it means that if you want to take your rent back from your company, you need to take it as income. As a result, you'll have to pay income tax depending on your tax bracket. There is another point to consider if you have a mortgage. Check with your lender, if your buy-to-let mortgage allows you to live in your property!