Was unable to find an answer to this on the forums or in a google search.
Plan
Plan matches 100% of employee deferrals up to safe harbor match of 3%.
Situation
Employee is accelerating deferrals which lines up to the concern that the employee will be jumping ship and has been slacking. The deferrals are not (likely) sustainable (20% of salary??) so the goal appears to be to max out the employer match.
ADP contributes 3% of our match to the employee's 401k.
Query
Will we have to true-up the employee's match if they quit in March/April/May but have contributed their full 3% already? (e.g. employee makes $150k. We have contributed $1.1k by March based upon ADP's approach. Employee has contributed the full $4,500 by March. Do we have to true-up our contribution to match theirs even if they were only a member of the plan for 25% of the year?
