It depends. Some probate expenses include court filing fees, accounting fees, administrative fees, executor/administrator fees and legal fees. The amount of each depends on the size of the estate, the kind of assets owned by the decedent, whether any beneficiaries or heirs contest the proceeding, etc.
Generally, fees for an executor/administrator are typically 2% of the entire probate estate. If the executor/administrator hires an attorney, probate legal fees are generally equal to a percentage of the overall size of the probate estate – usually about 2%-5%. In some circumstances, depending on the size of the estate, probate legal fees may be paid on an hourly basis. These fees are generally negotiated between the executor/administrator and the attorney.