About Us The Denver Tax Group You’re a busy business owner growing your Denver business. You don’t have time to manage your own bookkeeping and payroll. Let us do that for you. Free Consultations: Call us at 303-333-0363 to schedule an appointment. Denver Tax Group, LLC1888 Sherman St #650Denver, CO 80203 Phone: 303-333-0363FAX: 720-545-0102