Thanks for your question. I will try to help.
If you purchase the property 3 years ago then the title will be a registered legal title. This means that the property is registered at land registry.
Therefore, if you wished to transfer ownership of the property to him then you would have to complete a formal transfer of the property via land registry.
Technically, there is no legal requirement to instruct a solicitor to arrange the transfer and registration of the transfer at Land Registry. However, there may be elements relating to your particular personal circumstances or the land registry registered title for the property which dictates that it would be prudent to instruct a solicitor. It should cost around £250-300 for a solicitor to do this for you.
I would instruct a solicitor to do this for you personally.
You will have to draft a Transfer (form TR1) from you to your partner to you (which you will both have to sign as a deed (ie. witnessed) and you can download the template form from the land registry's website. You will have to submit this to the land registry with their form AP1, this is also downloadable from the website
by selecting from the "Forms" tab:-
If you do not instruct a solicitor then you would both also have to download an ID1 form from the above for each of you then each complete one hen take it to a solicitor to certify for £10 and submit this with your AP1 application.
If you live in the property then there would likely be no capital gains tax implications. I would think serious about this because once you have transferred the property you are effectively giving up all of your rights in the property, including a right to the proceeds of sale or equity in the property which seems a silly thing to do given that you appear to have purchased it with money that was your own (since your partner appears to have paid money for your previous house rather than giving you simple gift of money.
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