No. The income share must be split in the same percentages as those in the deed of trust and in the declaration. This form is used by HMRC to confirm where married or civil couples own a joint property together in unequal shares. You'll note from the above that Form 17 states that the income earned from the property is declared in the same shares as the beneficial interest. You cannot benefit from income form a jointly owned property in a different share to your beneficial interest.