Offer your thoughts or opinion on the input financial query or topic using your financial background.

Is a company allowed to give employees an option for a bonus to be paid out as a 401k match or cash? 
This has to do with the type of plan offered: is it a 401(k) plan or a profit-sharing plan, or both? If it's 401(k) I believe the IRS will see this distribution as elective and count towards the employee's annual elective contribution limit. If it's profit sharing the distribution would be counted toward the employer's portion of the limit. However -- profit sharing plans have a formula that's standard across the board and applied to all employees. i.e. 3% of company profits given equally to all employees. One of the benefits of the profit sharing plans is also that you can use a vesting schedule. I'd consult your accountant to see how this specifically impacts your business - but in the case you describe this sounds like an elective deferral choice by an employee and I don't see how (or why) you'd make this decision for them. Give them the bonus and let them choose how it's paid out. Edit: in re-reading your question it actually sounds like you're wanting to setup a profit sharing type situation - but again, heed what I said above. You decide the amount of "profit" - but you also have to set an equation that applies across the board. There is more complication to it than this brief explanation and I'd consult your accountant to see how it applies in your situation.