Corporate tax reconciliation and adjustment logic
Corporate tax analysis begins with accounting income but applies the relevant tax definitions and adjustments. Distinguish inclusion in taxable revenue, exclusion from taxable revenue, disallowance of an expense and a permitted deduction. An accounting entry is evidence of treatment in the books, not proof that the same treatment is accepted for tax.
Analyze whether an adjustment is temporary or permanent and identify any required income disposition under the actual Korean rule. A depreciation difference can reverse in later periods, while a particular disallowed payment may have another character. Do not infer that every disallowed expense is retained internally or that every outward payment is automatically a bonus to the representative. The recipient, benefit and legal provision matter.
Use the applicable business year and transition conditions. Dividend exclusions, loss utilization, donation limits, business-vehicle treatment and tax rates can change or have special rules. A remembered percentage is not a substitute for identifying the actual provision. In a numerical exercise, separate supplied assumptions from current statutory facts and show the sequence from accounting profit through adjustments to the tax base, calculated tax and credits. Preserve schedules so that a later reviewer can trace the result and any future reversal.