If the reported tips from employees are more than 8% of sales, must an employer still allocate tips to the employees?
No. Tip allocation is required when the amount of tips reported by employees of a large food or beverage establishment is less than 8% (or an approved lower rate) of the gross receipts, other than nonallocable receipts, for the given period. If the employees are reporting more than the 8%, there would be no allocated tip amount. However, the employer must still file Form 8027 (PDF), Employer's Annual Information Return of Tip Income and Allocated Tips.
References:
Form 8027 (PDF), Employer's Annual Information Return of Tip Income and Allocated Tips
Form 8027 Instructions, Employer's Annual Information Return of Tip Income and Allocated Tips