We analyze the effect on savings in registered vehicles—including the VRSP itself—of the Voluntary Retirement Savings Plans Act (VRSP) Act, adopted in 2014, and the employer mandate to offer a workplace retirement savings vehicle. We use two identification strategies: a difference-in-differences approach (province × year) and a triple-difference approach (province × public sector × year), both applied to tax return data from the Longitudinal Administrative Databank (LAD). Our results suggest a gradual increase—of up to 4 percentage points—in the share of taxpayers contributing to a registered vehicle as a result of the law’s implementation. We estimate that the contribution rate to these vehicles, as a share of wages, rose by up to 0.6 percentage points. We find a net average increase of 0.4 percentage points in registered savings between 2017 and 2022 attributable to the VRSP Act, with gains concentrated among higher-income workers. We discuss potentialimprovements to better encourage saving among workers who need to save for retirement beyond the public plans.