Rental Property losses carry over

[Daniel B.]

Hi, 

    My understanding is that a rental property loss carry over can be used to offset future passive income.  Can this be carried over to increase the losses of a future year?  I believe if AGI is $100,000 or less, $25,000 in rental property can be deducted.  If I have a lesser amount of losses this year (say $5,000), can I use previous years losses to increase this years losses so I can save on taxes, or does it have to be used against positive passive income?  For example, If I had $10,000 in losses I am carrying forward, can I now have $15,000 in losses this year?

Thanks!