What is the difference between CPA , CMA , CIA and which is the best ?

ACCA is the most prestigious of all. 

See below link for more information

http://www.accaglobal.com/en/learning-provider/learningproviders-exemptions/recognition-acca-qualifications.html

CPA : Certified Public Accountant Chartered Accountant and an external auditor Content of CPA Auditing & Attestation Financial Accounting & Reporting Regulation Business Environment & Concepts All CPAs are accountants, but not all accountants are CPAs Site of CPA Sponsoring By American Inistitute of CPAs , www.aicpa.org CMA : Certified Management Accountant Management Accountant and Financial Manager and Cost Accountant Content of CMA Financial Planning , Performance and control Financial Decision Making Number of certificate holders only 35,000 arrived in the world Site of CMA Sponsoring By Institute of Certified Management Accountants , www.imanet.org CIA : Certified Internal Auditor Internal Auditor and Financial audit experts Content of CIA Internal Audits Role in Governance , Risk and Control Conducting the Internal Audit Engagement Business Analysis and Information Technology Business Management Skills Site of CIA Sponsoring By Institute of Internal Auditors , www.theiia.org Which Best : All previous certificates wonderful but the standard in choice due to a desire in the development of professional skills and vision for the future .
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I believe there is not one best certification. It will always boil down to what career path you want to pursue. If you are into financial analysis and corporate finance, go for CMA or CIMA. If you want to pursue internal audit, go for CIA. Or if you want external audit, go for CPA. The list can go on.

Certified Management Accountant Certificate (CMA) 

Certified Internal Auditor CIA

Certified Public Accountant Certificate (CPA

the best on ( CPA ) 

We can't say which is the best.

CPA ( Certified Public Accountant )

CMA ( Certified Management Accountant )

CIA ( Certified Internal Auditor )

From their name you can notice that each of them has its own features & covers a different field from one another.

there are no conflicts between them.

 

I believe that all of them important because all of them have different duty , so CPA works more about external audit; CMA is working about how you will make the financial planing and what is the good decision to make form many decisions; CIA is about internal auditor, therefore when we need to work with CPA, it will be the best or  we need CIA to make the internal audit so it will be the best in that duty. To sum up, what we need is the best. 

CPA : Certified Public Accountant  more about extranl auditCMA : Certified Management Accountant  more about internal auditCIA : Certified Internal Auditor  more about function of departments u can say funcional side

CPA : Certified Public Accountant CMA : Certified Management Accountant CIA : Certified Internal Auditor CPA IS best Every certificate is valauable

There are several differences between all 3 designations, but in general each of those 3 certificates cover different topics.  From a very general perspective you could say that the CPA is the better designation among the 3; however this greatly depends on your career, and future prospects.  For instance, for an internal auditor, the CIA is almost a must if he's looking to stay relevant in the field; however for someone not involved in internal audit, the CIA would simply be a waste of time. That's why the CPA is a better choice for someone without a clear focus, since it's well recognized, and covers a wide range of topics that could benefit the candidate in many specialties.