Can IRV be manually audited?
Yes. The procedure for manually auditing a ranked-choice ballot election is a little more involved than a typical plurality election. There are two elements to such an audit: confirming that the machine record of ballot rankings matches the rankings marked on the paper ballots, and confirming that the IRV vote tallying procedure was properly done. To audit the ballot rankings, a random sample of voting machines are selected. San Francisco compares the total number of each ranking reported by the machine to the total number of each ranking manually counted on the same sample of paper ballots. A better method is to print a list of each ranking combination (such as 23 ballots ranked the candidates in order: candidate B, candidate A, candidate D, candidate C) and then looking at each ballot in the sample and checking off each corresponding ballot type on the list, until every ballot has been looked at and every ballot ranking on the list is checked off. There are several ways too confirm t
