THE STATE LAW IN NEW JERSEY ABOUT INCREASES IN SECURITY DEPOSITS SAYS A LANDLORD Ccn only raise your security deposit once a year no more then 10% on current deposit. I've lived in this park for 43 YRS. This is my second mobile home here. My currant deposit is $90 he wants to raise it $364.00 more. If my current deposit is $90. 10% of $90 is $9 am I right?