Derive net rental income by deducting the following items from the gross:
               
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                           interest, but not principal, portion of mortgage payments
                           
                         
                      
                   
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                           upkeep and major repairs – deduct either actual amount spent each month or 15% of the gross rental plus $4.17 per month
                           
                           
                         
                      
                   
               
               Prorate the above expenses on the same periodic basis as the periodic basis on which
                  rental income is received (e.g., quarterly, monthly). Multiply rental income received
                  weekly by 4 1/3 to convert to a monthly amount.
               
               NOTE: Under the ordinary life estate agreement, the life tenant is entitled to the use income
                  from the property. The life tenant is also responsible for the usual costs of ownership
                  such as taxes and upkeep. However, if the life estate agreement stipulates that the
                  person to whom the life estate will revert is responsible for certain expenses, such
                  expense payments are not income to the life tenant.