늘 금융비서 - 똑똑한 돈 계산

얼웨이즈

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About this app

Do you make financial decisions based on intuition?

Financial Assistant is a collection of financial calculators designed for people living, working, and investing in Korea. All 12 calculators reflect Korean tax laws, social insurance rates, and real estate regulations for 2026, so the numbers displayed on the screen are the exact figures applicable to you.

[ Loans & Real Estate ]

Loan Calculator -- Simulates loans in three ways: equal principal and interest payments, equal principal payments, and lump-sum repayment at maturity. Provides a detailed repayment schedule displaying the monthly principal, interest, and balance. See for yourself how a difference of just 0.5% in interest rates can result in a difference of millions of won in total interest.

Jeonse & Monthly Rent Conversion Calculator -- Calculates the conversion between Korea's unique Jeonse deposit system and monthly rent. It is an essential tool for understanding the Korean real estate market.

[ Income & Taxes ]

Net Salary Calculator -- Enter your annual salary, and it instantly displays your net monthly income after applying 2026 income tax brackets and deductions for the four major social insurances. Be sure to check this before negotiating your salary.

Income & Taxes 4 Major Insurance Details -- Displays employee/employer contributions for each of the four major insurances: National Pension, Health Insurance, Employment Insurance, and Industrial Accident Compensation Insurance, itemized by category.

Capital Gains Tax Calculator -- Estimates taxes on capital gains from real estate sales. The special deduction for long-term holding is automatically applied according to current tax laws.

Value Added Tax Calculator -- Converts pre-tax and post-tax amounts based on the Korean standard tax rate of 10%.

[ Investment & Savings ]

Compound Interest Calculator -- Simulates asset growth over time by entering the principal, interest rate, and compounding cycle. It also provides the Rule of 72 to quickly estimate the time required for the principal to double.

Savings Maturity Calculator -- Calculates the maturity payout for regular savings accounts. Compares pre-tax and post-tax interest to show the actual amount deposited into the account.

ROI Analyzer -- Calculates the total return and Compound Annual Growth Rate (CAGR) by entering the purchase price, sale price, and holding period.

Currency Converter -- Provides real-time exchange rate conversion between major currencies.

[ Everyday Finance ]

Discount Calculator -- Enter the original price and discount rate to see the final price and savings.

Tip/Split the Bill Calculator -- Calculates the tip amount and distributes the total equally among the number of people.

[ Scenario Comparison ]

The Loan Calculator and Salary Calculator support side-by-side scenario comparisons. You can compare the difference in total interest between 20-year and 30-year loan terms on a single screen, or view changes in net income before and after an annual salary increase side-by-side.

[ 2026 Tax Rates Are Not Last Year's ]

Tax rates change every year. Insurance rates are also adjusted. Financial Assistant reflects the 2026 Korean income tax brackets, social insurance contribution rates, and capital gains tax deduction schedules, so there is no need to separately verify whether the numbers match this year's standards.

[ Premium Analysis ]

Purchasing Premium Analysis allows you to receive a detailed report summarizing your calculation results and use the app without ads.

Supports both Korean and English.

Financial Assistant is the app you will open whenever you have questions about money. Get the correct answer in one app instead of opening 12 browser tabs.