1. Qualifications and Credentials
   Ensure the advisors have proper qualifications such as CPA (Certified Public Accountant), EA (Enrolled Agent), or other relevant certifications.

2. Experience
   Look for advisors with experience in your specific industry or with similar tax situations (e.g., self-employed, international taxes).

3. Reputation
   Check online reviews, testimonials, and ratings from previous clients to gauge trustworthiness and service quality.

4. Specialization
   Some tax advisors specialize in particular areas (e.g., personal tax, corporate tax, estate planning). Ensure their expertise aligns with your needs.

5. Services Offered
   Confirm the range of services they provide, including tax preparation, planning, compliance, and representation during audits.

6. Communication Skills
   Assess how well they communicate complex tax issues. They should be able to explain things clearly and answer your questions thoroughly.

7. Fee Structure
   Understand their pricing model, whether it's hourly, flat fees, or a percentage of your refund, and look for transparency in billing.

8. Availability
   Check their availability during peak tax season and whether they offer support beyond the tax filing period for year-round guidance.

9. Technology Utilization
   Inquire about the tools and software they use for tax preparation and communication, as modern technology can enhance efficiency.

10. Client Approach
    Evaluate how they approach client relationships—do they offer a proactive, personalized strategy or more of a reactive, one-size-fits-all service?

11. Compliance Knowledge
    Ensure they stay updated with current tax laws and regulations to provide compliant and effective advice.

12. Conflict of Interest
    Clarify any potential conflicts of interest, particularly if they have relationships with financial institutions or other entities.

By considering these tips, you can better navigate your search for reliable Tax Advisory Services.