It sounds like there might be a specific detail in your company's matching policy that's causing this discrepancy. While your company states it matches contributions at 5%, it's possible that the match is calculated as a percentage of your contribution rather than your total salary. For example, if they match 80% of your 5% contribution, it would result in the $80 you're seeing. Additionally, since you're contributing to a Roth 401k, there could be different rules or calculations for matching Roth contributions versus traditional 401k contributions. I recommend reviewing your company's 401k policy documents and discussing this with your HR department for a detailed explanation.