Car salary sacrifice & self-assessment

Hi, I work for the NHS and am a higher rate taxpayer and also complete a self-assessment for a rental property. If I take up a car salary sacrifice from the NHS can I also add the rental income profits (from the self-assessment) into the car salary sacrifice scheme to further lower my tax bill?

Hi vjncorp,
No, you need to declare the rental separately as this is not employer related income. You will tailor your online tax return to show your different incomes and expenses. 
Thank you.