I spent time and money to get an MBA (with a focus in Accounting), but you can simply buy the texts listed below and do a self-study course. Higher education is both over-priced and over-rated, so if you simply want to understand the stuff and don't care about getting the certificate, I'd encourage you to learn it on your own.

First Semester

Business Communication
(Text: privately produced)

Calculus for Managers
(Text: Calculus)

Financial Management
(Text: Principles of Corporate Finance)

Intermediate Accounting I
(Text: Intermediate Accounting)

Managerial Economic Analysis
(Text: Microeconomics)

Organizational Behavior
(Text: privately produced)

Statistics for Managers
(Text: Elementary Statistics)

Second Semester

Advanced Financial Management
(Text: Principles of Corporate Finance)

Auditing and Accounting Information Systems
(Text: Auditing)

Intermediate Accounting II
(Text: Intermediate Accounting)

Management Accounting
(Text: Cost Management)

Operations Management and Decision Support Systems
(Text: Introductory Management Science)

Statistical Models
(Text: Statistics for Managers)

Third Semester

Accounting Theory
(Text: Modern Advanced Accounting)

Advanced Auditing and Accounting Information Systems
(Text: Auditing)

Advanced Operations Management and Decision Support Systems
(Text: Introductory Management Science)

Aggregate Economic Analysis
(Text: Macroeconomics)

Business Law I
(Text: West's Business Law)

Tax Aspects of Business Management
(Text: Fundamentals of Federal Income Taxation)
(Text: Selected Federal Taxation Statutes and Regulations)

Fourth Semester

Accounting Research

Business Law II
(Text: West's Business Law)

Business Policy
(Text: Contemporary Strategy Analysis)

International Business Environment
(Text: privately produced)

Marketing Management
(Text: Marketing Management)

Taxation of Business Entities
(Text: Fundamentals of Corporate Taxation, Fourth Edition)