Sweeps: Master Lock Tax ReliefPlease enter the current Sweepstakes instead of this expired one. Enter once for a chance to win the Master Lock Tax Relief Rewards Sweepstakes. If you don’t already, create a Master Lock Vault account for a link to the Sweepstakes entry form. The Master Lock Vault is a free, digital safe deposit box that provides a safe and secure solution for storing copies of important tax documents for easy access from any smart phone or computer. There will be 5 winners of a $1,000 Gift Card. This sweeps started March 16 and ends April 16.