3 to 4 years is a good amount of time to switch, but I think 5 to 6 is probably better, it you have a good fit with a company. 5 to 6 years is the normal amount

3 to 4 years is a good amount of time to switch, but I think 5 to 6 is probably better, it you have a good fit with a company. 5 to 6 years is the normal amount of time to 100% vest company 401k contributions, and any stock options. Leaving early can be a lot of money on the table.