You can deduct most expenses related to managing your rental property, including:
- Mortgage interest
- Property taxes
- Insurance
- Repairs and maintenance
- Property management fees
- Legal/accounting fees
- Utilities (if you pay them)
NOTE: Please keep meticulous record at least monthly. I can tell you from experience, trying to go back a year and a half after the fact an identify deductions is a huge pain and leaves deductions uncounted.