Chapter 1.
How to register a business

01 How to register a business as a sole proprietor
02 Procedures for establishing a corporate business
03 Person? Permit and Industry Selection

Chapter 2.
Annual tax cycle

01 Monthly: Submit withholding tax (monthly or semi-annually) and simplified payment statement
02 Quarterly/semi-annual value-added tax
January 3: Registration and License Tax, Value Added Tax, and Simplified Statement of Earned Income
February 4: Business status report and payment statement submission
March 5: Submit payment statement, corporate tax, and total salary report
April 6: Value-added tax, corporate tax for verification of honest reporting
May 7: Comprehensive Income Tax
June 8: Comprehensive Income Tax Confirmation
July 9: VAT, simplified statement of earned income
August 10: Resident tax business division, corporate tax interim prepayment
October 11: Value Added Tax
November 12: Comprehensive income tax interim payment, monthly income insurance premium

Chapter 3.
Types of taxes and how to report them

01 Withholding tax
02 Value Added Tax
03 Comprehensive Income Tax
04 Corporate Tax

Chapter 4.
Evidence

01 Understanding Evidence
02 Eligible Documents
03 Others

Chapter 5.
tax adjustment

01 Understanding Tax Adjustments

Chapter 6.
Individual business owners vs. those subject to honest reporting verification vs. corporate business owners

01 Individual Business Owner vs. Corporate Business Owner
02 Sole proprietor vs. joint proprietor vs. corporate proprietor
03 National Tax Service Trends
04 Example of Tax Comparison for Individual and Corporate Businesses

Chapter 7.
self-employed

01 Understanding Self-Employed Businesses
02 Tax deductions and reductions (see p269)
03 Tax savings
04 Frequently Asked Questions

Chapter 8.
From Individual to Corporation: Conversion to Corporation

01 Timing of corporate conversion (Advantages of corporate conversion)
02 Method of converting a sole proprietor to a corporation
03 Deciding on the method of incorporation
04 Goodwill

Chapter 9.
corporate business

01 Understanding Corporations
02 In-house Labor Welfare Fund
03 Tax deductions and reductions
04 Other - Retroactive Deduction System for Losses

Chapter 10.
By industry

01 YouTuber
02 E-commerce
03 School business
04 Restaurant Industry
05 Other

Chapter 11.
etc

01 Cost processing by account subject
02 How to process donation expenses
03 Other (Sales and additional cost considerations)
04 Business Vehicles
05 Other (labor, etc.)
06 Guidance on Taxation and Tax Investigation

Chapter 12.
Closure

01 Closing Procedure
02 Things to know after reporting business closure

hello.
I am Wonjeong Lee, a certified public accountant who runs a tax accounting firm and shares tax knowledge with many people through the tax specialist YouTube channel, "Economic Accountant."
Our channel currently boasts close to 100,000 subscribers.
Actually, the reason I started YouTube was to train my office staff.
We started releasing videos that covered things employees needed to know in the hopes that they would be helpful to others.

As a result, not only office workers but also general business owners, certified public accountants, and tax accountants showed great interest and provided feedback that it was very helpful in practical terms.
I am grateful that my sincere desire to share tax knowledge in a way that is easily understandable to everyone has reached so many people.
This book is organized in a different order than previous books.
Focusing on the annual tax return, we cover important tax-related topics from a practical perspective, from incorporation to business registration.
This has been done so that you can easily refer to it when carrying out actual work.

As a certified public accountant with extensive experience in tax affairs, I wrote this book with the intention of providing practical assistance to business owners, focusing on practice rather than theory.
In order to convey the exact meaning, it is correct to use the words in the theory book, but I hope you understand that there may be some awkward parts because I tried to use the easiest terms possible to help readers understand.
If you read through it all once and study the necessary parts repeatedly, tax work will no longer feel difficult.
I sincerely hope this book will strengthen your tax-saving strategies and provide practical assistance in running your business.
thank you

Lee Won-jeong