Securing America's Elections Act of 2021 This bill requires voting systems for federal elections to produce paper ballots that the voter may inspect and verify before the vote is cast and counted. The bill also (1) requires the paper ballot to be suitable for manual audits, (2) prescribes approved methods for such audits, and (3) directs the Department of Homeland Security and the Election Assistance Commission to report on the desirability of using open-source software in voting systems.