HAON's Practice Areas

HAON Handles Every
Tax Challenge with Expertise

HAON provides specialized services across a wide range of practice areas to resolve the complex tax issues businesses and individuals face with greater precision and structure.

From bookkeeping, corporate consulting, and tax audit response to inheritance and gift tax, capital gains tax, local tax, refund claims, and non-profit taxation, our team brings deep experience and expertise in each area to recommend the best path forward for every client’s situation.

Check Our Key Services

Bookkeeping Services

Corporate Tax Consulting

Agriculture, Fishery & Livestock Tax

Non-Profit Organizations

Tax Audit & Tax Diagnosis

Inheritance & Gift Tax

Tax Refund Claims

Tax Appeals

Capital Gains Tax

Local/Provincial Tax

HAON Protects
What You've Built

In the era of digital administration, asset management is no longer just about filing. With tax audits, source-of-funds reviews, real estate records, health insurance, and national pension data all interconnected, proactive preparation is essential to protecting your assets. HAON stands by your side with structured tax strategies you can rely on.

In the era of digital administration, asset management is no longer just about filing. With tax audits, source-of-funds reviews, real estate records, health insurance, and national pension data all interconnected, proactive preparation is essential to protecting your assets. HAON stands by your side with structured tax strategies you can rely on.

Book a Consultation

Precise Solutions Tailored to Your Situation

Tax issues that arise in running a business vary widely depending on industry, scale, transaction type, and asset structure. HAON has organized our key practice areas so clients can easily find the services they need, and we maintain a dedicated response system in each area to deliver practical, effective solutions.

Specialized Expertise Makes the Difference

Practical Solutions

Going beyond filing, HAON delivers tailored answers that address the root cause and risks of the issues you face. Drawing on hands-on experience built up in each practice area, we provide practical and effective responses.

Direct Expert Review

Our team includes CPAs and tax advisors with experience at top-tier accounting firms, tax firms, and the National Tax Service. With specialized knowledge and field experience in every area, we deliver precise services you can trust.

Legal and Labor Collaboration

Tax issues often require joint review across legal, labor, and other areas of law beyond tax alone. HAON works with specialists across disciplines to provide multi-angle analysis and comprehensive solutions.

Leave the complexity to us,
You focus on growth

Hand over every complex, headache inducing tax matter to HAON’s experts. We’ll be the reliable partner by your side, so you can focus entirely on growing your business.

Book a Consultation

HAON Tax Corporation

Copyright ©2026 HAON Tax Corp.
Contact Us
하단 플로팅 CTA ENG (#5)
Bookkeeping Services
#Monthly_Bookkeeping #VAT
#Withholding_Tax #Year_End_Closing
A core service that provides ongoing tax and accounting management essential to running your business.
View Success Case

• Sole proprietors and corporations experiencing revenue growth and increasingly complex tax handling

• When you want stable, ongoing management of recurring tax work such as VAT, withholding tax, and year-end closing

• Executives who want to run operations systematically without missing tax deadlines or documentation

• Beyond simple filing services, we provide practical guidance aligned with the flow of your business

• We explain your current situation and key points to watch in language that’s easy to understand

• We reliably manage recurring tax work while also checking points that are easy to overlook

Light

From 55,000 KRW / month

Double-entry bookkeeping
VAT filing
(For tax-exempt businesses: Business status report)
National tax certificate issuance on your behalf
Tax schedule notification service
(Corporate) Bank account transaction management
Communication method: Chat only

Standard

From 110,000 KRW / month

Includes everything in Light, plus:
Communication method: Chat & phone
Free 5-year tax refund claim assessment
Withholding tax and local income tax filing
Simplified payment statement submission
Payment statement submission
Employee year-end tax settlement
Basic four major insurances administration
Tax credit review under the Restriction of Special Taxation Act
Startup subsidy guidance
Referral to legal, labor, and appraisal specialists
1:1 tax advisor consultation upon contract

Premium

From 330,000 KRW / month

Includes everything in Standard, plus:
Referral to attorneys and patent attorneys
Closing reports (monthly, quarterly, semi-annually)
Delivery of closing reports
On-site visits by tax advisor
Property tax consultation discount (10%+)

Corporate Tax Consulting
#Corporate_Operations #Executive_Compensation
#Tax_Saving_Strategy #Structural_Review
An advisory service that reviews the tax decisions and tax-saving strategies needed throughout the operation of your corporation.
View Success Case

• Rather than offering simple theoretical explanations, we work with you to define the right direction based on your actual corporate operations

• Big 4 CPAs advise alongside our team, providing reviews with unmatched expertise

• We deliver tailored long-term tax-saving plans that go beyond corporate tax savings to cover M&A, IPO, gifts, and business succession

• Rather than offering simple theoretical explanations, we work with you to define the right direction based on your actual corporate operations

• Big 4 CPAs advise alongside our team, providing reviews with unmatched expertise

• We deliver tailored long-term tax-saving plans that go beyond corporate tax savings to cover M&A, IPO, gifts, and business succession

Agriculture, Fishery, and Livestock Tax
#Industry_Special_Provisions #Subsidies #Agriculture_Fishery_Livestock_Tax #Filing_Management
An industry-specific service that reflects the unique characteristics and tax issues of agriculture, fishery, and livestock businesses.
View Success Case

• When you need stable tax handling tailored to agriculture, fishery, or livestock businesses

• When you want an advisor with deep understanding of these specialized industries

• When you’re looking for tax-saving strategies for special entities such as agricultural cooperatives or agricultural corporations

• Tax advisors with extensive experience in agriculture, fishery, and livestock handle your case directly

• Our specialists manage every detail with hands-on understanding of how these businesses actually operate in the field

• We focus on reducing errors that can arise when tax handling fails to account for the unique nature of these industries

Non-Profit Corporations and Organizations
#Non_Profit #Primary_Purpose_Business #Profit_Business #Separate_Accounting #Primary_Purpose_Reserve_Fund
We provide tax and accounting management that accounts for the structure of both primary purpose activities and profit-generating activities of non-profit corporations and organizations.
View Success Case

• When you need accounting and tax handling tailored to the operations of a non-profit corporation or organization

• When you need separate accounting for primary purpose activities and profit-generating activities

• When you need support for public-interest corporation closing disclosures, donated asset reporting, donation organization review reports, and annual donation fundraising and utilization statement submissions

• We understand the unique nature of non-profit organizations and apply standards that differ from those of for-profit corporations

• We focus on closing the gap between your operational purpose and the actual accounting and tax handling

• We provide clear separation between profit-generating and primary purpose activities, along with the corresponding separate accounting

Tax Audit / Tax Diagnosis
#Tax_Audit_Response #Risk_Review #Document_Review #Pre_Diagnosis
A service that identifies risks through tax audit response and pre-audit diagnostics, and establishes the necessary response direction.
View Success Case

• When you’ve received a tax audit notice or want to prepare for the possibility of an audit

• When you want to review your current tax handling status in advance

• When you want to check for risks in your filings, supporting documents, or expense handling

• Former National Tax Service advisors respond directly, drawing on their hands-on experience

• We look beyond post-issue response to proactively reduce risk before problems arise

• We clearly outline what needs to be prepared during the audit response process

Inheritance and Gift
#Asset_Transfer #Tax_Calculation
#Family_Assets #Pre_Planning
An advisory service that reviews both the tax burden and the asset transfer structure throughout the inheritance and gift process.
View Success Case

• When you’re preparing to transfer assets among family members

• When you want to know the expected taxes and procedures for inheritance or gifts

• When you’re looking for the most effective tax-saving approach to wealth transfer

• We design the optimal tax-saving plan based on the scale and nature of your assets

• Former National Tax Service property investigation team advisors directly manage your risks

• We provide not only support at the point of transfer but also ongoing post-transfer management

Inheritance Tax Filing Fees

Under 500 Million KRW
3,000,000 KRW

500 Million KRW to under 1 Billion KRW
3,000,000 KRW + 0.4% of the amount exceeding 500 Million KRW

1 Billion KRW to under 3 Billion KRW
5,000,000 KRW + 0.3% of the amount exceeding 1 Billion KRW

3 Billion KRW to under 5 Billion KRW
11,000,000 KRW + 0.2% of the amount exceeding 3 Billion KRW

5 Billion KRW to under 10 Billion KRW
20,000,000 KRW + 0.1% of the amount exceeding 5 Billion KRW

10 Billion KRW to under 50 Billion KRW
30,000,000 KRW + 0.05% of the amount exceeding 10 Billion KRW

50 Billion KRW to under 100 Billion KRW
30,000,000 KRW + 0.03% of the amount exceeding 50 Billion KRW

100 Billion KRW or more
45,000,000 KRW + 0.02% of the amount exceeding 100 Billion KRW

Gift Tax Filing Fees

Under 200 Million KRW
300,000 KRW
 
200 Million KRW to under 500 Million KRW
300,000 KRW + 0.2% of the amount exceeding 200 Million KRW
 
500 Million KRW to under 1 Billion KRW
900,000 KRW + 0.15% of the amount exceeding 500 Million KRW
 
1 Billion KRW to under 2 Billion KRW
1,650,000 KRW + 0.12% of the amount exceeding 1 Billion KRW
 
2 Billion KRW to under 5 Billion KRW
2,850,000 KRW + 0.1% of the amount exceeding 2 Billion KRW
 
5 Billion KRW to under 10 Billion KRW
5,850,000 KRW + 0.08% of the amount exceeding 5 Billion KRW
 
10 Billion KRW to under 50 Billion KRW
9,850,000 KRW + 0.05% of the amount exceeding 10 Billion KRW
 
50 Billion KRW to under 100 Billion KRW
29,850,000 KRW + 0.03% of the amount exceeding 50 Billion KRW
 
100 Billion KRW or more
44,850,000 KRW + 0.02% of the amount exceeding 100 Billion KRW
Tax Refund Claims
#Refund_Review #Overpayment
#Missed_Deductions #Reassessment
A service that reviews previously filed taxes for missed deductions or overpayments and assesses the potential for correction.
View Success Case

• When you want to verify whether the taxes you’ve already paid were appropriate

• When there’s a possibility of missed deductions or exemptions

• When you want to re-examine past filings to check refund eligibility

• Our tax advisors with over 2,000 approved refund claims and 31 Billion KRW in refunds secured provide accurate assessments based on extensive hands-on experience

• Review is free of charge, and we proceed with a commission-based fee proportional to the refund amount only after the refund is confirmed

• Former National Tax Service advisors manage any future risks so you can proceed without concern

Tax Appeals
#Tax_Assessment_Response #Objection_Filing
#Tribunal_Appeal #Issue_Review
A service that reviews the facts and legal issues when you disagree with a tax assessment and establishes a clear response strategy.
View Success Case

• When you disagree with a decision by the tax office or tax authority

• When you believe the tax assessment is excessive or the facts have not been fully reflected

• When you need to consider response procedures such as filing an objection or tribunal appeal

• Former National Tax Service advisors respond directly, drawing on their hands-on experience

• We focus on evidence and factual analysis rather than emotional reactions

• We calmly guide you through which response is most realistic given your current situation

Capital Gains Tax
#Real_Estate_Transfer #Tax_Calculation
#Deductible_Expenses #Filing_Response
A service that reviews expected taxes and key filing points in advance when transferring real estate or other assets.
View Success Case

• When you’re about to transfer real estate, shares, or other assets and want to know the tax implications

• When you want to confirm the expected tax amount before the transaction

• When the outcome may vary depending on deductible expenses, acquisition cost, holding period, and other factors

• We focus on reducing uncertainty by reviewing transactions in advance rather than responding after the fact

• We explain the key factors affecting capital gains tax calculations from a practical standpoint

• We organize everything clearly so you can make informed decisions before committing

Capital Gains Tax Filing Fees

Under 200 Million
KRW 200,000 KRW

200 Million KRW to under 500 Million KRW
200,000 KRW + 0.2% of the amount exceeding 200 Million KRW

500 Million KRW to under 1 Billion KRW
800,000 KRW + 0.15% of the amount exceeding 500 Million KRW

1 Billion KRW to under 2 Billion KRW
1,550,000 KRW + 0.1% of the amount exceeding 1 Billion KRW

2 Billion KRW to under 5 Billion KRW
2,550,000 KRW + 0.05% of the amount exceeding 2 Billion KRW

5 Billion KRW to under 10 Billion KRW
4,050,000 KRW + 0.04% of the amount exceeding 5 Billion KRW

10 Billion KRW to under 50 Billion KRW
6,050,000 KRW + 0.03% of the amount exceeding 10 Billion KRW

50 Billion KRW to under 100 Billion KRW
18,050,000 KRW + 0.02% of the amount exceeding 50 Billion KRW

100 Billion KRW or more
28,050,000 KRW + 0.01% of the amount exceeding 100 Billion KRW

Provincial/Local Tax
#Acquisition_Tax #Property_Tax
#Local_Tax_Review #Filing_Response
A service that reviews local tax issues such as acquisition tax and property tax based on your situation and supports the necessary response.
View Success Case

• When local tax review is needed during the acquisition of real estate, corporations, or other assets

• When the applicability of acquisition tax, property tax, or registration and license tax is complex

• When you want to review various local tax benefits under the Restriction of Special Local Taxation Act and check for anything you may have missed

• We review both national and local taxes together to minimize omissions.

• We provide clear assessments on the appropriateness of high-burden local taxes such as acquisition tax.

• We review niche local tax benefits under laws such as the Restriction of Special Local Taxation Act and identify any opportunities you may have missed.

Contact Us
Contact Form ENG
Lee Taewook
CTA
이태욱 세무사 프로필사진
Key Career Highlights

Current Head CTA, HAON Cheonan Branch

Former Managing CTA, Wonwon Tax & Accounting

Former Consulting Team Lead, Cheonan Branch, Wonwon Tax Firm

Former Steel Industry Team Lead, Cheonan Branch, Wonwon Tax Firm

Tax Audit Response Specialist (Over 15 Billion KRW in Tax Savings)

Shin Hojae
CTA
신호재 세무사 프로필사진
Key Career Highlights

Current Head of Division CTA, HAON Head Office

Former Bookkeeping Team Lead, Cheongsol Tax Firm

Former Bookkeeping Team, Hyeum Tax Firm Head Office

Former Tax Advisor Training Committee Member, Hyeum Tax Firm

Former Consulting Team, Hyeum Tax Firm Head Office (Tax Refund Claims, Capital Gains, Inheritance, Gift)

Approx. 1,700 Approved Tax Refund Claims, Approx. 7 Billion KRW in Refunds Secured

Jeong Jaewon
CTA
정재원 세무사 프로필사진
Key Career Highlights

Current Head CTA, HAON Pangyo Branch

Graduate, Department of Taxation, University of Seoul

Former National Tax Service Official (Income Tax Division, Property Tax Division, etc.)

Former Property Investigation Team Lead, Bundang Tax Office (Inheritance, Gift, Capital Gains, Source-of-Funds Audits)

Specialist in Asset Reporting & Audit Response (Inheritance, Gift, Capital Gains)

Han Hyeongjong
CPA
한형종 회계사 프로필사진
Key Career Highlights

Current Head CPA, HAON Head Office

Former Domestic Tax Division, Samil PwC

Former International Tax Division, Samjong KPMG

Graduate, Global Business Administration, Sungkyunkwan University

Tax Advisory for Large Corporations, Ventures, Startups, and SMEs

Tax Advisory for Foreign-Invested Companies and Non-Resident Inbound Cases

Tax Audit Response (Regular, Irregular, Seizure, and Deposit Audits)

Tax Refund Claims (Over 20 Billion KRW in Refunds Secured)

Jeon Younghyuk
CTA
전영혁 세무사 프로필사진
Key Career Highlights

Current Head CTA, HAON Head Office & Seoul West Branch

Current Evaluator Candidate, Startup Support Program Review Committee, Korea Institute of Startup & Entrepreneurship Development

Former Managing Tax Advisor, Gasan Branch, Cheongsol Tax Firm

Former Team Lead, Non-Profit Dedicated Team, HAON Tax & Accounting

Former Consulting Team, Hyeum Tax Firm Head Office

Former National Researcher, Hyeum Tax Firm Head Office (AI-based Tax Refund Claim Automation Development, Tax Advisory, Planning)

Former Tax Team Lead & Livestock Team, Daehyun Tax Firm Head Office

Top Contributor, Tax & Accounting, AHA Platform

700+ Approved Tax Refund Claims, Approx. 4 Billion KRW in Refunds Secured

Kim Hoemun
CTA
김회문 세무사 프로필사진
Key Career Highlights

Current Head CTA, HAON Head Office

Current Secretary, Young Tax Advisors Committee, Seoul Regional Tax Advisors Association

Current Member, Media & PR Committee, Korean Association of Certified Public Tax Accountants

Current Advisory Tax Advisor, Startup Promotion Division, Seoul National University of Science and Technology

Current Instructor (Government Subsidies), HAON Biz School

Former Team Lead, Tax Division, Saesidae Accounting Firm

Former Researcher, Asset Tax Savings Institute, Saesidae Accounting Firm

Specialist in Capital Gains, Inheritance, Gift, and Business Succession Tax

Approx. 5 Billion KRW in Approved Tax Reductions