Tax relief and valuation review
A homestead exemption, senior-relief program, or valuation protest can change the amount a homeowner owes—but only if the filing reaches the right local office in the correct window. Use the verified county guidance below as your working checklist, then confirm the current form and deadline with Charleston County Assessor's Office.
Relief programs
The filing guidance for this county is: Before the first penalty date for the 2026 tax year, generally January 15, 2027, for Legal Residence and Agricultural special-assessment applications; the senior homestead exemption is filed with the County Auditor after meeting the December 31, 2025 eligibility date. Use the official form or application channel, provide the residence and ownership documentation requested, and keep a copy of the submission.
Open homestead applicationSouth Carolina Homestead Exemption: complete exemption of taxes on the first $50,000 of fair market value of the legal residence for a homeowner over age 65, totally and permanently disabled, or legally blind; apply through the county Auditor. Official information: https://dor.sc.gov/property/exempt-property.
South Carolina Act 388 reassessment protection generally limits taxable-value growth to 15% in a reassessment year for qualifying property, unless an assessable transfer of interest, additions/improvements, or another statutory exception applies; counties reassess on a five-year cycle.
Appealing an assessment
Use the valuation notice and the county’s published protest guidance to determine the last day to file. Do not assume the payment deadline controls the appeal.
Gather comparable sales, photographs, repair records, appraisal evidence, property characteristics, and any documentation that explains why the assessed value is incorrect.
Submit through the official channel, save the confirmation, and attend the board or review hearing if one is scheduled. An appraiser or attorney can help evaluate evidence when the value or stakes are substantial.
The verified protest guidance for this county is: For 2026, an assessment notice controls and appeal rights generally expire 30 or 90 days after mailing; if no notice is sent, Charleston County allows a written appeal through the last day to pay without penalty, generally January 15, 2027. If the language is not a specific calendar date, contact the office promptly for the current notice and board-review schedule.