This is what IRS website says -
Assessments for local benefits. You cannot deduct amounts you pay for local benefits that tend to increase the value of your property. Local benefits include the construction of streets, sidewalks, or water and sewer systems. You must add these amounts to the basis of your property.
You can, however, deduct assessments (or taxes) for local benefits if they are for maintenance, repair, or interest charges related to those benefits. An example is a charge to repair an existing sidewalk and any interest included in that charge.
