This is Korea's #1 real estate calculator. Developed with the advice of a real estate expert and tax accountant, it's a favorite among everyone from novice investors to certified real estate agents and tax accountants.
* While many similar calculators have copied our app, don't be confused. (See in-app notice.) Unlike our completely free app, copycats may incur fees and may result in inaccurate calculations. *
◆ All tax and loan regulations effective from 2026 are reflected.
◆ Even without app updates, tax law logic updates are made daily, ensuring you're always up to date.
※ For inquiries regarding calculation results, please post on the bulletin board or email us at contact@fran.kr. We'll be happy to assist you. Please leave a comment on Google Reviews, and for inquiries, please use the in-app bulletin board or email us!
Calculable Items
- Real Estate Brokerage Commission (Collection Fee, Brokerage Fee)
- Appraisal Fee
- Registration Fee
- Legal Scrivener Fee
- Acquisition Tax
- Property Tax
- Comprehensive Real Estate Tax
- Integrated Holding Tax
- Capital Gains Tax
- Gift Tax
- Inheritance Tax
- Statutory Inheritance Share
- Housing Rental Income Tax
- Comprehensive Income Tax
- Stamp Tax
- Building Value Added Tax
- National Housing Bond Discount Rate
- Rental Yield
- Good Landlord Tax Benefits
- Deposit Repayment Guarantee
- Debt-to-Income Ratio (DTI)
- Stressed DTI
- New DTI
- Debt-to-Income Service Ratio (DSR)
- Interest-to-Rate Ratio (RTI)
- Loan-to-Value Ratio (LTV)
- Land Equity
- Floor Area Ratio, Building-to-Land Ratio
- Pyeong Conversion
- Loan Interest
- Loan Amount
- Estimated/Recognized Income for Loans
- Deposit Interest
- Auction Loan Limit
- Auction Costs
- Auction Dividend
- Reconstruction Period
- Remodeling Contribution / Rate of Return
- Rent Increase (Increase Rate)
- Date Difference
- Lunar Calendar
- Handless Day Calendar
- Progressive Tax (All Calculations Based on Progressive Tax Structure)
Additional Services
- Save and Share Invoices
- CSV (Excel) Download
- Direct Real Estate Transactions
- Topic-Specific Real Estate News
- Information Sharing Bulletin Board
- Tax Accountant's Real Estate Tax Saving Tips
- Real Estate Policies, Press Releases
- Real Estate Transaction Prices
- Apartment Transaction Statistics, Visualization Graphs, Detailed Search
- Real Estate Financial Glossary (Real Estate Wiki)
You can share information and suggest features through the bulletin board.