Korea Payroll & Tax (kkuldogu)

Connect Remote server

claude mcp add --transport http kkuldogu-korea-payroll https://api.kkuldogu.com/mcp

{
  "mcpServers": {
    "kkuldogu-korea-payroll": {
      "url": "https://api.kkuldogu.com/mcp"
    }
  }
}

{
  "servers": {
    "kkuldogu-korea-payroll": {
      "type": "http",
      "url": "https://api.kkuldogu.com/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://api.kkuldogu.com/mcp

Tools 52 found in our last check

• net_pay

  South Korea take-home pay for an employee: monthly net salary after national pension, health and long-term care insurance, employment insurance, and withheld income tax (2026 NTS simplified withholding table) plus local income tax.

• social_insurance

  South Korea four major social insurances (national pension, health, long-term care, employment) for a monthly wage: employee deductions and employer contributions at 2026 rates.

• severance_pay

  South Korea statutory severance pay (toejikgeum): 30 days of average wage per year of service, with retirement income tax, from hire date, last working day and last 3 months of pay. By law the ordinary wage replaces the average wage when it is higher (Labor Standards Act art. 2(…

• retirement_income_tax

  South Korea retirement income tax on a severance payment: service-year deduction, converted-pay deduction, national and local tax, and the reduced tax if received as an IRP pension.

• annual_leave

  South Korea paid annual leave under the Labor Standards Act: days currently available, remaining days, next accrual, and payout value of unused leave.

• unemployment_benefit

  South Korea unemployment benefit (job-seeking allowance, silup geupyeo): daily amount with 2026 cap and floor, number of benefit days, and total.

• parental_leave_benefit

  South Korea parental leave benefit from employment insurance, month by month with caps, including the 6+6 both-parents scheme and single parents.

• weekly_holiday_pay

  South Korea weekly holiday pay (juhyu sudang): the paid weekly rest allowance owed to workers contracted for 15+ hours a week, with weekly and monthly pay including it.

• wage_conversion

  Convert between hourly wage, monthly salary and annual salary the South Korean way (monthly hours include paid weekly holiday hours, 209 for a 40-hour week), with a 2026 minimum wage check.

• minimum_wage_check

  Check a South Korean monthly wage against the 2026 minimum wage (KRW 10,320/hour): counts base pay, monthly regular bonus and cash welfare allowances, supports the 90% probation rate.

• part_time_pay

  South Korea part-time (alba) monthly pay from an hourly wage and schedule, including weekly holiday pay, after either 3.3% withholding or the four social insurances plus income tax.

• overtime_pay

  South Korea overtime, night and holiday work premiums under the Labor Standards Act (1.5x overtime, +0.5x night, 1.5x/2x holiday); workplaces with fewer than 5 employees get no premium.

• ordinary_wage

  South Korea ordinary wage (tongsang imgeum): hourly and daily ordinary wage from base pay, fixed allowances and regular bonuses, the basis for overtime, unused leave and dismissal notice pay.

• average_wage

  South Korea average wage (pyeonggyun imgeum): daily average over the 3 months before the last working day, the basis for severance pay and unemployment benefit; falls back to the ordinary wage when that is higher.

• gross_from_net

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/gross-from-net with x402.] Reverse South Korea take-home pay: the gross monthly and annual salary needed to reach a target monthly…

• freelancer_withholding

  South Korea 3.3% business-income withholding for freelancers (3% income tax + 0.3% local tax), in either direction: net from gross, or the gross to invoice for a target net.

• daily_worker_tax

  South Korea daily (day-labor) worker tax: income tax after the KRW 150,000 daily deduction and 55% credit, local tax and employment insurance, for wages paid daily or in one lump sum.

• other_income_tax

  South Korea other-income (gita sodeuk) withholding of 22% on income after deemed expenses, e.g. lecture fees, manuscript fees and prizes, with the KRW 50,000 exemption threshold.

• dismissal_notice_pay

  South Korea dismissal notice allowance: 30 days of ordinary wage owed when an employer gives less than 30 days notice (not owed for under 3 months of service).

• shutdown_allowance

  South Korea business shutdown allowance (hyueop sudang): 70% of average wage, or the ordinary wage if that is lower, for days the employer suspends work (5+ employee workplaces).

• maternity_leave_pay

  South Korea maternity leave pay for 90 days (120 for multiple births): split between employer and employment insurance, with the 2026 monthly cap of KRW 2.2 million.

• paternity_leave_pay

  South Korea spouse (paternity) childbirth leave pay for the 20 paid days, and how much employment insurance covers at priority-support companies.

• reduced_hours_childcare_benefit

  South Korea reduced working hours for childcare benefit: monthly employment-insurance top-up (first 10 reduced hours at 100%, rest at 80%, with caps) plus the reduced employer pay.

• year_end_tax_settlement

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/year-end-tax-settlement with x402.] South Korea year-end tax settlement (yeonmal jeongsan) estimate for employees: refund or addit…

• monthly_rent_tax_credit

  South Korea monthly rent (wolse) tax credit at year-end settlement: 17% or 15% of up to KRW 10 million rent for homeless tenants earning up to KRW 80 million.

• card_income_deduction

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/card-income-deduction with x402.] South Korea credit card income deduction for year-end settlement: deduction from credit, debit/c…

• pension_savings_tax_credit

  South Korea pension savings and IRP tax credit: 16.5% or 13.2% (incl. local tax) of contributions up to KRW 9 million, and the extra refund from filling the remaining limit.

• bonus_tax

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/bonus-tax with x402.] South Korea tax withheld on a bonus or incentive payment: income tax by the simplified-table bonus method ov…

• vat

  South Korea 10% VAT: split a VAT-inclusive total into supply amount and VAT, or add VAT to a supply amount, with Korean rounding.

• brokerage_fee

  South Korea real-estate brokerage fee ceiling (bokbi) for a sale, jeonse or monthly-rent lease of a house or officetel: statutory rate bracket, fee cap and VAT.

• jeonse_wolse_conversion

  Convert between South Korean jeonse deposit and monthly rent (wolse) at a conversion rate, with the statutory 4.5% cap check on a landlord's asked rent.

• child_benefits

  South Korea government cash support for a newborn: first-meeting voucher, parent benefit for ages 0-1 and the monthly child allowance up to age 9, with a dated schedule.

• business_days

  South Korea business days: count working days between two dates, or find the date N business days later, skipping weekends and Korean public holidays (2025-2027 table incl. substitute holidays).

• deposit_interest

  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).

• korean_age

  Korean age calculation: international age (the legal standard in South Korea since June 2023), year age, traditional counting age, zodiac animal, and the next birthday.

• pyeong_conversion

  Convert between square meters and pyeong, the Korean real-estate area unit (1 pyeong = 400/121 m2, about 3.3058 m2).

• pregnancy_due_date

  Pregnancy due date and gestational week from the last menstrual period, with the South Korean labor-law dates that follow: reduced working hours in pregnancy, earliest maternity leave start, and the paternity leave deadline.

• service_period

  Length of service at a South Korean employer from the hire date: years, months, days, next anniversary, annual leave entitlement for the current year of service, and severance pay eligibility.

• gift_tax

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/gift-tax with x402.] South Korea gift tax (jeungyeose) on a gift received: relationship deduction (spouse 600M, parent to adult ch…

• housing_acquisition_tax

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/housing-acquisition-tax with x402.] South Korea acquisition tax when buying a home: 1-3% by price (sliding rate between 600M and 9…

• vehicle_tax

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/vehicle-tax with x402.] South Korea annual vehicle tax (jadongchase) for a private passenger car: per-cc rate by engine displaceme…

• income_tax_from_tax_base

  South Korea comprehensive income tax from a tax base (gwase pyojun): the 8-bracket 6-45% progressive table with deduction amounts, plus 10% local income tax, marginal and effective rates.

• loan_repayment

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/loan-repayment with x402.] Loan repayment schedule summary as used by South Korean banks: equal monthly payment (wolligeum gyundeu…

• early_repayment_fee

  South Korea early loan repayment fee (jungdo sanghwan susuryo): repaid amount x fee rate x remaining days / fee period (usually 3 years, after which the fee is waived).

• inheritance_shares

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/inheritance-shares with x402.] South Korea statutory inheritance shares and forced-heirship reserve (yuryubun) under the Civil Cod…

• housing_subscription_score

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/housing-subscription-score with x402.] South Korea housing subscription points (cheongyak gajeom, max 84) for private apartment sa…

• litigation_stamp_fee

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/litigation-stamp-fee with x402.] South Korea civil lawsuit filing costs: court stamp fee (injidae) from the claim amount by bracke…

• late_payment_interest

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/late-payment-interest with x402.] South Korea statutory late-payment interest (jiyeon sonhaegeum) on a money debt: 5% civil, 6% co…

• resignation_settlement

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/resignation-settlement with x402.] South Korea resignation settlement in one call: statutory severance pay, retirement income tax…

• job_offer_comparison

  [Paid-only, $0.05 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/job-offer-comparison with x402.] Compare a South Korean job offer with the current job on what actually matters: annual take-home…

• payroll_batch

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/payroll-batch with x402.] South Korea monthly payroll run for up to 100 employees in one call: per-employee take-home pay with eac…

• new_parent_benefits

  [Paid-only, $0.10 USDC per call: this free MCP tool returns payment instructions, not a result. Get the result from POST https://api.kkuldogu.com/v1/new-parent-benefits with x402.] Everything a South Korean household receives around a birth, in one call: maternity leave pay (90/…

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