How much does probate cost? Since probate proceedings can take up to a year or two, the assets are typically "frozen" until the courts decide on the distribution of the property. Probate can easily cost from 3% to 7% or more of the total estate value. Can Irvine Probate Law help us in the the zip code of 92620? Irvine Probate Law will gladly help you in the 92620 area of Irvine, CA.