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8. Tax Penalties
The penalties on failure to comply with obligations by the tax laws are as follows:
  a.  Penalty on Failure to File Returns
If a resident either fails to file a tax return or under-reports the relevant income, an
amount equivalent to 20% of the income unreported or under-reported will be included in
the calculation of tax amount as follows:
income amount unreported or underreported
Income amount to be properly reported
X tax amount properly calculated 
X 20%
  b. Penalty on Non-payment or Underpayment of Tax 
(1) When the income tax payable with the final return has not been paid in full, a penalty
in the amount of 0.03% of the amount shall be added to the amount of tax due, for
each day the amount remains unpaid.
(2) When a taxpayers association fails to fully pay the income tax due within the time
required, a penalty of 5% of the unpaid amount shall be added to the amount of tax 
due.  When tax is not paid properly, the penalty amounts to 0.03% on the unpaid
amount per day.
  c.  Penalty Tax on Failures to Withhold Tax
If a person subject to tax withholding fails to withhold tax at source or fails to pay the
government tax withheld within the payment period, the larger of  (1) or (2)
(1)  An amount that multiplies 0.03% by the number of unpaid days (limited to 10% of unpaid tax)
(2) An amount equivalent to 5% of unpaid tax. 
  d.  Penalty Tax on Failures to Report Withholding Invoices
(1) If a concerned person fails to submit a payment report  within the reporting period or
if the reported facts concerning payment are found to be unclear as specified by the
Presidential Decree, a penalty in the amount of 2% of the payment due shall be 
charged. 
(2) If a concerned person fails to issue or submit a proper tax invoice regarding the
transaction involved, a penalty in the amount of 1% of the transaction shall be 
charged.
  e.  Penalty Tax Related to Gathering Relevant Tax Invoices
(1) If a taxpayer has an obligation to keep double entry books but fails to keep available
invoices in the form that is generally accepted (including credit card receipts) as
supporting evidence for the payment of goods received and services rendered, a 
penalty may be imposed in the amount of 2% of the total value of such unsupported
transactions. The penalty may be applied even if the expense deduction is
sufficiently substantiated to be allowed.
(2) If a taxpayer who has an obligation to keep double entry books does not submit a list
of invoices to the tax office, a penalty tax amounting to 1% of the unreported amount
shall be charged.
  f.  Penalty tax on failure to maintain adequate books and records
If a taxpayer operating a business fails to maintain proper books and records, such
taxpayer will be subject to penalty tax equal to 20% of the amount of tax due for the tax
year involved multiplied by the following rate "R."
R =  improperly documented portion of taxable income divided by total taxable income