{"content_id":"leeccll2gg","slug":"year-end-tax-adjustment-correction-claim-five-year-deadline-2","locale":"en","schema_type":"HowTo","category":"policy_guide","category_name":"Policy Guide","title":"Deadline and Refund Application Process for Year-End Tax Settlement Corrections","summary":"If you overpaid income tax because you omitted a deduction or tax reduction from your year-end tax settlement, you may file a correction claim within five years after the statutory filing deadline. The standard deadline for claims regarding employment income for the 2021 tax year is May 31, 2027.","author":{"name":"Injoys Editorial Team","url":"https://injoys.com/ko/about"},"key_points":["A correction claim is a procedure for requesting a tax reduction when the amount already reported or settled through the year-end tax settlement exceeds the correct tax amount.","The general deadline for filing a correction claim is within five years after the statutory filing deadline for the relevant income tax.","The standard deadline for filing a correction claim for the 2021 year-end tax settlement is May 31, 2027.","Rent, medical expenses, and donations are not automatically deductible solely because they were paid; you must meet the requirements and provide supporting documents for the relevant tax year.","Filing a correction claim does not guarantee a refund; review and a decision by the tax office are required."],"content_markdown":"If you paid too much income tax because you missed a deduction or tax reduction during year-end tax settlement, you can correct the tax amount by filing a **claim for reassessment**. However, not all expenses are deductible, and the general right to file a claim expires after the period prescribed by law.\n\n## What Is a Claim for Reassessment?\n\nA claim for reassessment is a procedure through which a taxpayer asks the competent tax office to reduce a tax amount that was reported or finalized through year-end tax settlement when it exceeds the correct amount. If the claim is accepted and the tax is reduced, the difference from the amount already paid may be refunded.\n\nEmployees should check for the following situations:\n\n- An applicable income deduction or tax credit was omitted during year-end tax settlement\n- Supporting documents for a deduction were not submitted to the employer\n- An applicable benefit, such as an income tax reduction for employees of small and medium-sized enterprises, was not reflected\n- Too much tax was paid because dependent information or expense amounts were entered incorrectly\n\nConversely, if excessive deductions were claimed and too little tax was paid, the matter may require an amended return or additional payment rather than a claim for reassessment.\n\n## When Can You File a Claim?\n\nUnder the Framework Act on National Taxes, the general deadline for filing a claim for reassessment is **within 5 years after the statutory filing deadline**. It is not calculated simply from the day after the tax was paid.\n\nDeductions omitted from an employee’s year-end tax settlement can be reflected in the final comprehensive income tax return filed in May of the following year. If they were not reflected during that period either, a claim for reassessment may be filed after the statutory deadline for the final return has passed.\n\n| Tax year | Statutory comprehensive income tax filing deadline | Standard deadline for a claim for reassessment |\n|---|---:|---:|\n| 2020 | May 31, 2021 | May 31, 2026 |\n| 2021 | May 31, 2022 | May 31, 2027 |\n| 2022 | May 31, 2023 | May 31, 2028 |\n| 2023 | May 31, 2024 | May 31, 2029 |\n| 2024 | May 31, 2025 | May 31, 2030 |\n\nThe table is based on standard employee year-end tax settlement cases. If the final day is a public holiday or an individual filing deadline was extended, the actual deadline may differ, so it should be confirmed through Hometax or the competent tax office.\n\nFor the 2020 tax year, the standard 5-year period for filing a claim for reassessment ended in 2026. This does not mean that a refund was automatically created and then disappeared; it means that **the period for exercising the standard right to file a claim for reassessment has ended**.\n\nIf a subsequent statutory event, such as the finalization of a court judgment or cancellation of a transaction, occurred later, a separate claim period may apply. A subsequent-event claim for reassessment is not recognized merely because the taxpayer learned about a deduction belatedly.\n\n## Easily Overlooked Deductions and Tax Reductions\n\n### Monthly Rent Tax Credit\n\nThe monthly rent tax credit is not an item for which the lease agreement and bank transfer records are automatically reflected in full. The statutory requirements for the relevant tax year must be met, including the no-homeownership requirement, total salary threshold, housing requirements, and registered residential address.\n\nThe documents generally prepared include:\n\n- Resident registration certificate\n- Copy of the lease agreement\n- Proof of monthly rent payments, such as bank transfer receipts or deposit slips\n\nThe credit may be restricted if rent was paid in cash without objective proof of payment or if the relationship between the contracting party and resident does not meet the requirements.\n\n### Medical Expense Tax Credit\n\nYou can check whether any medical expenses were omitted from the simplified year-end tax settlement data. However, not all non-covered medical expenses that are not covered by health insurance are deductible. Expenses for cosmetic or plastic surgery purposes and purchases of medicines for health promotion may be excluded from the credit.\n\nFor medical expenses not included in the simplified data, documents such as receipts issued by medical institutions are required to verify the expense details and eligibility for the credit.\n\n### Donation Tax Credit\n\nDonations must have been made to an organization eligible for a deduction under tax law. The mere fact that a receipt was issued by a religious or private organization does not guarantee the credit, so the organization’s eligibility and the type of donation must be verified.\n\n### Income Tax Reduction for Employees of Small and Medium-Sized Enterprises\n\nYoung people, older adults, persons with disabilities, women returning to work after a career interruption, and other statutorily eligible individuals may receive an employment income tax reduction if they obtain employment at a qualifying small or medium-sized enterprise. Eligibility and the applicable period vary depending on the employment date, employee category, the company’s industry, and whether the company qualifies as a small or medium-sized enterprise.\n\nGenerally, the employee submits a tax reduction application to the employer, and the employer submits a statement to the tax office. If the reduction was not applied at the time, the possibility of filing a claim for reassessment can be reviewed after confirming the eligibility requirements with the employer.\n\n### Marriage-Related Tax Credits\n\nThe same tax reduction does not apply to every year merely because a couple is newly married. For programs with limited application periods, such as the marriage tax credit, the date of marriage registration and the statutory requirements for the relevant tax year must be reviewed.\n\n## How to File a Claim for Reassessment Through Hometax\n\n1. Log in to Hometax.\n2. Under `Tax Filing`, go to the `Comprehensive Income Tax Return` menu.\n3. Select `Claim for Reassessment` under `Employment Income Return`.\n4. Load the tax year for which you are filing and the existing year-end tax settlement details.\n5. Correct the omitted income deduction, tax credit, or tax reduction items.\n6. Submit supporting documents proving that the deduction requirements are met.\n7. Check the calculated tax amount and refund account, then submit the return.\n8. Save the filing receipt and a copy of the return, and check the processing status.\n\nIf the relevant tax year does not appear in Hometax or electronic filing is difficult, you can ask about preparing a return and submitting it to the competent tax office.\n\n## Documents to Prepare Before Filing\n\n| Category | Documents to check or prepare |\n|---|---|\n| Basic documents | Employment income withholding receipt for the relevant year, existing return |\n| Monthly rent | Lease agreement, resident registration certificate, proof of monthly rent payments |\n| Medical expenses | Medical institution receipts, proof of expenses omitted from the simplified data |\n| Donations | Donation receipt issued by an eligible organization |\n| Dependents | Family relationship documents, documents verifying income, age, and livelihood requirements |\n| Small and medium-sized enterprise reduction | Tax reduction application, documents verifying the employment date and eligibility requirements |\n| Refund | Refund account information in your name |\n\nBecause credit rates, limits, and eligibility requirements may be revised, you must apply **the tax law for the tax year covered by the claim for reassessment, not the current rules**.\n\n## Processing After Filing and Precautions\n\nA claim for reassessment is a procedure for requesting a refund, not one that immediately finalizes a refund. After reviewing the claim and supporting documents, the tax office either adjusts the tax amount or notifies the taxpayer that there are no grounds for the claim. Under the Framework Act on National Taxes, the tax office is generally required to notify the taxpayer of the result within 2 months from the date the claim is received.\n\nThe following should also be checked:\n\n- The claim may not be accepted if it includes expenses that are not eligible for a deduction.\n- The refund is not the full amount of the omitted expense but the reduction in tax resulting from recalculating the deduction.\n- The refund may be smaller than expected because of restrictions on combining deductions or deduction limits.\n- Check that multiple family members have not claimed the same dependent deduction.\n- The local income tax refund procedure and timing may differ from those for income tax.\n\nIf the deadline is approaching, it is advisable to review the supporting documents first and confirm whether filing through Hometax is available or how to submit the claim to the competent tax office.","content_html":"\u003cp\u003eIf you paid too much income tax because you missed a deduction or tax reduction during year-end tax settlement, you can correct the tax amount by filing a \u003cstrong\u003eclaim for reassessment\u003c/strong\u003e. However, not all expenses are deductible, and the general right to file a claim expires after the period prescribed by law.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-is-a-claim-for-reassessment\" class=\"anchor\" id=\"what-is-a-claim-for-reassessment\"\u003e\u003c/a\u003eWhat Is a Claim for Reassessment?\u003c/h2\u003e\n\u003cp\u003eA claim for reassessment is a procedure through which a taxpayer asks the competent tax office to reduce a tax amount that was reported or finalized through year-end tax settlement when it exceeds the correct amount. If the claim is accepted and the tax is reduced, the difference from the amount already paid may be refunded.\u003c/p\u003e\n\u003cp\u003eEmployees should check for the following situations:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eAn applicable income deduction or tax credit was omitted during year-end tax settlement\u003c/li\u003e\n\u003cli\u003eSupporting documents for a deduction were not submitted to the employer\u003c/li\u003e\n\u003cli\u003eAn applicable benefit, such as an income tax reduction for employees of small and medium-sized enterprises, was not reflected\u003c/li\u003e\n\u003cli\u003eToo much tax was paid because dependent information or expense amounts were entered incorrectly\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eConversely, if excessive deductions were claimed and too little tax was paid, the matter may require an amended return or additional payment rather than a claim for reassessment.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#when-can-you-file-a-claim\" class=\"anchor\" id=\"when-can-you-file-a-claim\"\u003e\u003c/a\u003eWhen Can You File a Claim?\u003c/h2\u003e\n\u003cp\u003eUnder the Framework Act on National Taxes, the general deadline for filing a claim for reassessment is \u003cstrong\u003ewithin 5 years after the statutory filing deadline\u003c/strong\u003e. It is not calculated simply from the day after the tax was paid.\u003c/p\u003e\n\u003cp\u003eDeductions omitted from an employee’s year-end tax settlement can be reflected in the final comprehensive income tax return filed in May of the following year. If they were not reflected during that period either, a claim for reassessment may be filed after the statutory deadline for the final return has passed.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTax year\u003c/th\u003e\n\u003cth\u003eStatutory comprehensive income tax filing deadline\u003c/th\u003e\n\u003cth\u003eStandard deadline for a claim for reassessment\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Tax year\"\u003e2020\u003c/td\u003e\n\u003ctd data-label=\"Statutory comprehensive income tax filing deadline\"\u003eMay 31, 2021\u003c/td\u003e\n\u003ctd data-label=\"Standard deadline for a claim for reassessment\"\u003eMay 31, 2026\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Tax year\"\u003e2021\u003c/td\u003e\n\u003ctd data-label=\"Statutory comprehensive income tax filing deadline\"\u003eMay 31, 2022\u003c/td\u003e\n\u003ctd data-label=\"Standard deadline for a claim for reassessment\"\u003eMay 31, 2027\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Tax year\"\u003e2022\u003c/td\u003e\n\u003ctd data-label=\"Statutory comprehensive income tax filing deadline\"\u003eMay 31, 2023\u003c/td\u003e\n\u003ctd data-label=\"Standard deadline for a claim for reassessment\"\u003eMay 31, 2028\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Tax year\"\u003e2023\u003c/td\u003e\n\u003ctd data-label=\"Statutory comprehensive income tax filing deadline\"\u003eMay 31, 2024\u003c/td\u003e\n\u003ctd data-label=\"Standard deadline for a claim for reassessment\"\u003eMay 31, 2029\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Tax year\"\u003e2024\u003c/td\u003e\n\u003ctd data-label=\"Statutory comprehensive income tax filing deadline\"\u003eMay 31, 2025\u003c/td\u003e\n\u003ctd data-label=\"Standard deadline for a claim for reassessment\"\u003eMay 31, 2030\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe table is based on standard employee year-end tax settlement cases. If the final day is a public holiday or an individual filing deadline was extended, the actual deadline may differ, so it should be confirmed through Hometax or the competent tax office.\u003c/p\u003e\n\u003cp\u003eFor the 2020 tax year, the standard 5-year period for filing a claim for reassessment ended in 2026. This does not mean that a refund was automatically created and then disappeared; it means that \u003cstrong\u003ethe period for exercising the standard right to file a claim for reassessment has ended\u003c/strong\u003e.\u003c/p\u003e\n\u003cp\u003eIf a subsequent statutory event, such as the finalization of a court judgment or cancellation of a transaction, occurred later, a separate claim period may apply. A subsequent-event claim for reassessment is not recognized merely because the taxpayer learned about a deduction belatedly.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#easily-overlooked-deductions-and-tax-reductions\" class=\"anchor\" id=\"easily-overlooked-deductions-and-tax-reductions\"\u003e\u003c/a\u003eEasily Overlooked Deductions and Tax Reductions\u003c/h2\u003e\n\u003ch3\u003e\n\u003ca href=\"#monthly-rent-tax-credit\" class=\"anchor\" id=\"monthly-rent-tax-credit\"\u003e\u003c/a\u003eMonthly Rent Tax Credit\u003c/h3\u003e\n\u003cp\u003eThe monthly rent tax credit is not an item for which the lease agreement and bank transfer records are automatically reflected in full. The statutory requirements for the relevant tax year must be met, including the no-homeownership requirement, total salary threshold, housing requirements, and registered residential address.\u003c/p\u003e\n\u003cp\u003eThe documents generally prepared include:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eResident registration certificate\u003c/li\u003e\n\u003cli\u003eCopy of the lease agreement\u003c/li\u003e\n\u003cli\u003eProof of monthly rent payments, such as bank transfer receipts or deposit slips\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe credit may be restricted if rent was paid in cash without objective proof of payment or if the relationship between the contracting party and resident does not meet the requirements.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#medical-expense-tax-credit\" class=\"anchor\" id=\"medical-expense-tax-credit\"\u003e\u003c/a\u003eMedical Expense Tax Credit\u003c/h3\u003e\n\u003cp\u003eYou can check whether any medical expenses were omitted from the simplified year-end tax settlement data. However, not all non-covered medical expenses that are not covered by health insurance are deductible. Expenses for cosmetic or plastic surgery purposes and purchases of medicines for health promotion may be excluded from the credit.\u003c/p\u003e\n\u003cp\u003eFor medical expenses not included in the simplified data, documents such as receipts issued by medical institutions are required to verify the expense details and eligibility for the credit.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#donation-tax-credit\" class=\"anchor\" id=\"donation-tax-credit\"\u003e\u003c/a\u003eDonation Tax Credit\u003c/h3\u003e\n\u003cp\u003eDonations must have been made to an organization eligible for a deduction under tax law. The mere fact that a receipt was issued by a religious or private organization does not guarantee the credit, so the organization’s eligibility and the type of donation must be verified.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#income-tax-reduction-for-employees-of-small-and-medium-sized-enterprises\" class=\"anchor\" id=\"income-tax-reduction-for-employees-of-small-and-medium-sized-enterprises\"\u003e\u003c/a\u003eIncome Tax Reduction for Employees of Small and Medium-Sized Enterprises\u003c/h3\u003e\n\u003cp\u003eYoung people, older adults, persons with disabilities, women returning to work after a career interruption, and other statutorily eligible individuals may receive an employment income tax reduction if they obtain employment at a qualifying small or medium-sized enterprise. Eligibility and the applicable period vary depending on the employment date, employee category, the company’s industry, and whether the company qualifies as a small or medium-sized enterprise.\u003c/p\u003e\n\u003cp\u003eGenerally, the employee submits a tax reduction application to the employer, and the employer submits a statement to the tax office. If the reduction was not applied at the time, the possibility of filing a claim for reassessment can be reviewed after confirming the eligibility requirements with the employer.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#marriage-related-tax-credits\" class=\"anchor\" id=\"marriage-related-tax-credits\"\u003e\u003c/a\u003eMarriage-Related Tax Credits\u003c/h3\u003e\n\u003cp\u003eThe same tax reduction does not apply to every year merely because a couple is newly married. For programs with limited application periods, such as the marriage tax credit, the date of marriage registration and the statutory requirements for the relevant tax year must be reviewed.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-to-file-a-claim-for-reassessment-through-hometax\" class=\"anchor\" id=\"how-to-file-a-claim-for-reassessment-through-hometax\"\u003e\u003c/a\u003eHow to File a Claim for Reassessment Through Hometax\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eLog in to Hometax.\u003c/li\u003e\n\u003cli\u003eUnder \u003ccode\u003eTax Filing\u003c/code\u003e, go to the \u003ccode\u003eComprehensive Income Tax Return\u003c/code\u003e menu.\u003c/li\u003e\n\u003cli\u003eSelect \u003ccode\u003eClaim for Reassessment\u003c/code\u003e under \u003ccode\u003eEmployment Income Return\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eLoad the tax year for which you are filing and the existing year-end tax settlement details.\u003c/li\u003e\n\u003cli\u003eCorrect the omitted income deduction, tax credit, or tax reduction items.\u003c/li\u003e\n\u003cli\u003eSubmit supporting documents proving that the deduction requirements are met.\u003c/li\u003e\n\u003cli\u003eCheck the calculated tax amount and refund account, then submit the return.\u003c/li\u003e\n\u003cli\u003eSave the filing receipt and a copy of the return, and check the processing status.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eIf the relevant tax year does not appear in Hometax or electronic filing is difficult, you can ask about preparing a return and submitting it to the competent tax office.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#documents-to-prepare-before-filing\" class=\"anchor\" id=\"documents-to-prepare-before-filing\"\u003e\u003c/a\u003eDocuments to Prepare Before Filing\u003c/h2\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c/th\u003e\n\u003cth\u003eDocuments to check or prepare\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eBasic documents\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eEmployment income withholding receipt for the relevant year, existing return\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eMonthly rent\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eLease agreement, resident registration certificate, proof of monthly rent payments\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eMedical expenses\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eMedical institution receipts, proof of expenses omitted from the simplified data\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eDonations\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eDonation receipt issued by an eligible organization\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eDependents\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eFamily relationship documents, documents verifying income, age, and livelihood requirements\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eSmall and medium-sized enterprise reduction\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eTax reduction application, documents verifying the employment date and eligibility requirements\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eRefund\u003c/td\u003e\n\u003ctd data-label=\"Documents to check or prepare\"\u003eRefund account information in your name\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eBecause credit rates, limits, and eligibility requirements may be revised, you must apply \u003cstrong\u003ethe tax law for the tax year covered by the claim for reassessment, not the current rules\u003c/strong\u003e.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#processing-after-filing-and-precautions\" class=\"anchor\" id=\"processing-after-filing-and-precautions\"\u003e\u003c/a\u003eProcessing After Filing and Precautions\u003c/h2\u003e\n\u003cp\u003eA claim for reassessment is a procedure for requesting a refund, not one that immediately finalizes a refund. After reviewing the claim and supporting documents, the tax office either adjusts the tax amount or notifies the taxpayer that there are no grounds for the claim. Under the Framework Act on National Taxes, the tax office is generally required to notify the taxpayer of the result within 2 months from the date the claim is received.\u003c/p\u003e\n\u003cp\u003eThe following should also be checked:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe claim may not be accepted if it includes expenses that are not eligible for a deduction.\u003c/li\u003e\n\u003cli\u003eThe refund is not the full amount of the omitted expense but the reduction in tax resulting from recalculating the deduction.\u003c/li\u003e\n\u003cli\u003eThe refund may be smaller than expected because of restrictions on combining deductions or deduction limits.\u003c/li\u003e\n\u003cli\u003eCheck that multiple family members have not claimed the same dependent deduction.\u003c/li\u003e\n\u003cli\u003eThe local income tax refund procedure and timing may differ from those for income tax.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf the deadline is approaching, it is advisable to review the supporting documents first and confirm whether filing through Hometax is available or how to submit the claim to the competent tax office.\u003c/p\u003e\n","tags":["Hometax","Tax reassessment claim","Year-end tax settlement","Income tax refund","Tax credit"],"faqs":[{"question":"Do claims for correction of year-end tax settlements always just need to be filed within five years?","answer":"A standard claim for correction must be filed within five years after the statutory filing deadline for the relevant tax. The period may differ if an individual filing deadline was extended or if statutory subsequent grounds apply, so you should confirm the actual deadline."},{"question":"Until when can I file a claim for correction for the 2021 year-end tax settlement?","answer":"For a typical earned income case, a claim may be filed through May 31, 2027, five years from the statutory filing deadline of May 31, 2022."},{"question":"Can I file a claim for correction immediately from March 10 of the year after the year-end tax settlement is completed?","answer":"In general, omitted deductions can first be reflected in the final comprehensive income tax return filed in May of the following year. A standard claim for correction is generally available after the applicable statutory filing deadline has passed, so it is not accurate to regard March 10 as the uniform start date."},{"question":"If I file a claim for correction, will I be refunded the entire amount of the expenses I omitted?","answer":"No. The refund is not the amount of the expenses themselves, but the reduction in tax resulting from reapplying the deductions and tax relief. Depending on deduction limits, deduction rates, and restrictions on overlapping with other items, there may be no refund or it may be less than expected."},{"question":"Can anyone who paid monthly rent receive the monthly rent tax credit?","answer":"No. You must meet the no-homeownership requirement, total salary threshold, housing requirements, and requirements concerning the address and contractual relationship for the relevant tax year. A lease agreement and proof of monthly rent payments are also required."},{"question":"Are all non-covered medical expenses eligible for the medical expense tax credit?","answer":"Not all expenses qualify for the credit simply because they are non-covered. You must confirm that they are qualifying medical expenses incurred for treatment, and expenses for cosmetic or plastic surgery purposes and certain expenditures for health promotion may be excluded."},{"question":"How long does it take to process a claim for correction?","answer":"Under the Framework Act on National Taxes, the tax office generally revises the tax amount or notifies the claimant that there are no grounds for the claim within two months from the date it receives the claim for correction. The actual timing of the refund may vary depending on requests for supplementary documents or verification of the facts."},{"question":"Can I file another claim for a year-end tax settlement after five years have passed?","answer":"It is difficult to file a standard claim for correction of a simple omission after five years have passed. However, if subsequent grounds prescribed by law arise, such as a final court judgment or cancellation of a transaction, a separate deadline may apply, so you should check with the competent tax office or a tax professional."}],"sources":[{"url":"https://www.law.go.kr/법령/국세기본법","title":"Framework Act on National Taxes","type":"source"},{"url":"https://www.law.go.kr/법령/소득세법","title":"Income Tax Act","type":"source"},{"url":"https://www.hometax.go.kr/","title":"National Tax Service Hometax","type":"source"}],"images":[{"id":611,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzMxOCwicHVyIjoiYmxvYl9pZCJ9fQ==--3ba75f66f7e140733af63e028c10a3a0973ef32a/ai-a5877334.webp","is_representative":true,"generation_method":"ai_image","license":"ai_generated","mime_type":"image/webp","translations":{"ko":{"alt":"서류와 달력, 동전, 은행 카드, 돋보기, 모래시계가 놓인 세금 환급 일러스트","caption":"연말정산 경정청구에 필요한 서류 검토와 환급 신청 기한을 나타냅니다.","description":null},"en":{"alt":"Tax refund illustration with documents, calendar, coins, bank card, magnifier, and hourglass","caption":"The illustration represents document review and the filing deadline for a year-end tax refund claim.","description":null},"ja":{"alt":"書類、カレンダー、硬貨、銀行カード、虫眼鏡、砂時計を描いた税金還付のイラスト","caption":"年末調整の更正請求に必要な書類確認と還付申請期限を表しています。","description":null},"es":{"alt":"Ilustración de reembolso fiscal con documentos, calendario, monedas, tarjeta bancaria, lupa y reloj de arena","caption":"La ilustración representa la revisión de documentos y el plazo para solicitar una devolución fiscal.","description":null},"id":{"alt":"Ilustrasi pengembalian pajak dengan dokumen, kalender, koin, kartu bank, kaca pembesar, dan jam pasir","caption":"Ilustrasi ini menggambarkan pemeriksaan dokumen dan tenggat pengajuan pengembalian pajak akhir tahun.","description":null},"pt":{"alt":"Ilustração de restituição fiscal com documentos, calendário, moedas, cartão bancário, lupa e ampulheta","caption":"A ilustração representa a revisão de documentos e o prazo para solicitar a restituição fiscal.","description":null},"zh-hant":{"alt":"文件、日曆、硬幣、銀行卡、放大鏡與沙漏組成的退稅插圖","caption":"此插圖呈現年終稅務更正申請所需的文件審查與退稅期限。","description":null},"de":{"alt":"Steuerrückerstattung mit Dokumenten, Kalender, Münzen, Bankkarte, Lupe und Sanduhr","caption":"Die Illustration zeigt die Dokumentenprüfung und Frist für einen Antrag auf Steuerrückerstattung.","description":null}}},{"id":612,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzMyNCwicHVyIjoiYmxvYl9pZCJ9fQ==--aaa34d7c9bbaf3c6febfcf23173f65167313b7a6/ai-9fd1d922.webp","is_representative":false,"generation_method":"ai_image","license":"ai_generated","mime_type":"image/webp","translations":{"ko":{"alt":"주택, 의료비, 기부금, 가족 서류, 은행과 연결된 연말정산 체크리스트와 환급 절차","caption":"공제 서류를 확인한 뒤 은행 계좌로 환급받는 경정청구 절차를 보여준다.","description":null},"en":{"alt":"Tax checklist linked to housing, medical, donation, family, and bank records, with a refund process","caption":"The illustration shows documents being reviewed before a tax refund is sent to a bank account.","description":null},"ja":{"alt":"住宅、医療費、寄付、家族、銀行の資料につながる年末調整チェックリストと還付手続き","caption":"控除書類を確認し、銀行口座へ還付を受ける更正請求の流れを示している。","description":null},"es":{"alt":"Lista fiscal vinculada a vivienda, gastos médicos, donaciones, familia y banco, con proceso de reembolso","caption":"La ilustración muestra la revisión de documentos antes de recibir el reembolso en una cuenta bancaria.","description":null},"id":{"alt":"Daftar pajak terhubung ke dokumen rumah, medis, donasi, keluarga, dan bank serta proses pengembalian dana","caption":"Ilustrasi menunjukkan pemeriksaan dokumen sebelum pengembalian pajak dikirim ke rekening bank.","description":null},"pt":{"alt":"Lista fiscal ligada a moradia, despesas médicas, doações, família e banco, com processo de restituição","caption":"A ilustração mostra a análise dos documentos antes do depósito da restituição na conta bancária.","description":null},"zh-hant":{"alt":"連結住宅、醫療、捐款、家庭與銀行資料的年終稅務清單及退稅流程","caption":"圖中呈現核對扣除文件後，將退稅款匯入銀行帳戶的更正申請流程。","description":null},"de":{"alt":"Steuercheckliste zu Wohnen, Medizin, Spenden, Familie und Bank sowie Ablauf der Rückerstattung","caption":"Die Illustration zeigt die Dokumentenprüfung vor der Überweisung der Steuererstattung auf ein Bankkonto.","description":null}}}],"published_at":"2026-08-13T03:15:03+09:00","updated_at":"2026-08-13T03:15:03+09:00","license":"cc_by","translation_status":"reviewed","available_locales":["ko","en","ja","es"],"data_locales":["ko","en","ja","es","id","pt","zh-hant","de"],"url":"https://injoys.com/en/articles/year-end-tax-adjustment-correction-claim-five-year-deadline-2"}