If you jointly own property with your spouse or civil partner and want to change the split of income from it for tax purposes use Income Tax form 17.
Ref: Form 17
If you live with a spouse or civil partner and have income from property you jointly own, you’ll normally be taxed on an even split of the income between you.
Use this form if you want to change the split of income to your actual share of ownership.
You’ll also need to provide evidence that your beneficial interests in the property are unequal, for example a declaration or deed.
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You’ll need to fill in the form fully before you can print it. You can’t save a partly completed form so gather all your information together before you start to fill it in.
Don’t include personal or financial information like your National Insurance number or credit card details.
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