South Korea bank deposit or installment-savings interest after tax: maturity amo...
https://api.kkuldogu.com/v1/deposit-interestOverview
South Korea bank deposit or installment-savings interest after tax: maturity amount with simple or monthly-compounded interest and the 15.4% interest withholding tax (or 9.5% preferential, or tax-free).
Protocol
x402 (POST)
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
kkuldogu
Source
bazaar
Indexed
2026-11-13 15:03:41
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"body": {
"amount": 500000,
"annualRatePct": 4,
"kind": "savings",
"months": 12
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"basisYear": 2026,
"currency": "KRW",
"disclaimer": "For reference only, not legal or tax advice. Uses official 2026 Korean rates and the same formulas as the kkuldogu.com calculators; actual payroll, NHIS/NPS notices and tax settlement can differ.",
"input": {
"amount": 500000,
"annualRatePct": 4,
"kind": "savings",
"months": 12
},
"result": {
"equivalentDepositRatePct": 2.17,
"interestAfterTax": 109980,
"interestBeforeTax": 130000,
"interestTax": 20020,
"maturityAmount": 6109980,
"principal": 6000000
},
"source": "https://kkuldogu.com",
"tool": "deposit-interest"
},
"type": "json"
}