How long does it take to build an employer brand?
Foundations (research and EVP) take weeks to a few months; visible perception shift usually takes 12–24 months of consistent activation. It is a programme, not a campaign.
There are two horizons to set expectations around. The foundations, meaning research and a defined EVP, can be in place within a few weeks to a few months. A visible shift in how the market perceives you generally takes longer, often the better part of a year or two of consistent activation, because perception follows repeated experience rather than announcements. Framing it as a programme rather than a campaign keeps stakeholders patient through the slow middle. The second horizon is long because reputation is a lagging indicator. The pitfall is declaring victory or abandoning the effort when early reputation metrics have not moved, even though leading indicators like application quality often already have.