Samantha Roberts

Trying to find a clear answer to this question please. The mortgage on the house my partner & I live in is in my name. My partner pays a monthly contribution to me for the mortgage (way less that my mortgage payments), he also pays me half our bills each month. I need to know if his payments to me are classed as rent a room income? I understand that if it is & above £7,500 I will need to declare it.