We calculate approximately 3.5% - 4% of the selling price to cover Notario closing costs. They are an obligatory part of the legal process that allows a buyer to safely obtain property in Mexico. The largest of these fees are the land transfer tax, Notary fees and the appraisal. Keep in mind that this does not include pro-rated calculations for property tax, utilities, bank fees and, if applicable, homeowners fees and an inspection report.