If the employer responds by increasing the prices of the goods/services they sell, then yes. However, in the market the consumers have a choice, so they can choose to not buy something, or buy somewhere else, and the market thus regulates itself. Don't want to pay taxes? Not much choice there. So I think having the market regulate itself is better than enforcing the cost of labor through taxes. (Who knows, maybe the employers would be forced to cut their margins even.)
This would simply shift the cost from the state/government (read taxpayer) to end consumers (read taxpayer).