Charleston STR Tax Guide: What Airbnb Hosts Need to Know in 2026

STR hosts in Charleston navigate South Carolina's 7% accommodations tax plus local county and city taxes, alongside permit caps and historic district rules that make compliance more complex than most Southern markets. Here's everything Charleston Airbnb hosts need to know about taxes, regulations, and write-offs for 2026.

Local STR Regulations in Charleston

Charleston operates one of the more restrictive STR licensing frameworks in South Carolina. The City of Charleston requires all STR operators to hold a valid Short-Term Rental Permit, and the city uses a per-neighborhood cap system that limits the number of non-owner-occupied STR permits in residential areas. When a neighborhood cap is reached, new applicants are placed on a waitlist.

Charleston distinguishes between owner-occupied STRs (where the host lives on the property) and non-owner-occupied STRs. Owner-occupied permits have different requirements and are generally easier to obtain. Non-owner-occupied permits are subject to neighborhood caps and face more scrutiny. For hosts renting an entire home while living elsewhere, securing a non-owner-occupied permit in a popular Charleston neighborhood can be genuinely difficult.

Isle of Palms, Sullivan's Island, Folly Beach, and other beach communities near Charleston operate under their own municipal STR regulations. If your Charleston-area property is on one of these barrier islands, check the specific municipality's rules—they differ significantly from the City of Charleston ordinance.

Charleston Occupancy Tax and Sales Tax Requirements

South Carolina has a formal marketplace facilitator law that requires platforms like Airbnb to collect and remit the state accommodations tax on behalf of hosts. Airbnb also collects some local taxes in Charleston. However, hosts must still register with the South Carolina Department of Revenue for accommodations tax purposes and maintain active registrations even when the platform handles remittance.

Key Deductions for Historic/Beach Market Rental Hosts

Charleston STR hosts benefit from a combination of historic property costs and coastal property expenses, depending on whether their listing is on the peninsula or the barrier island beaches.

Historic Peninsula Properties

Charleston's historic district properties require specialized maintenance: heart pine floor care, antique window maintenance, plaster repair, and period-appropriate hardware. All routine maintenance is deductible. Major restorations must be capitalized. Charleston's humidity creates ongoing moisture management costs (dehumidifiers, HVAC maintenance, mold prevention) that are deductible operating expenses.

Coastal and Beach Properties

Properties on Isle of Palms, Sullivan's Island, and Folly Beach face saltwater corrosion, hurricane insurance premiums, and beach gear maintenance costs. Hurricane and windstorm insurance premiums are fully deductible for STR business purposes. Wind mitigation improvements may qualify for depreciation treatment.

Charleston-Specific Expenses You Can Deduct

• STR permit fees: City of Charleston STR permit application and annual renewal fees are deductible business licensing expenses.
• Wedding and event premium supplies: Charleston is a top wedding destination. Hosts who cater to wedding parties benefit from providing welcome baskets, champagne flutes, and event coordination guides. These supplies are deductible marketing expenses.
• Historic property insurance: Specialized insurance for Charleston historic properties—which may include replacement cost coverage for antique building materials—is a deductible business expense.
• Pest control: Charleston's subtropical climate requires year-round pest management. Service contracts are deductible operating expenses.
• Flood insurance: Many Charleston properties—particularly on the peninsula—are in FEMA flood zones requiring flood insurance. Premiums are deductible business expenses.
• Property management: Professional management fees for the Charleston market typically run 20-30% of gross revenue and are fully deductible.
• Cleaning and laundry: High-thread-count linens and premium guest amenities expected in the Charleston market increase cleaning costs. All cleaning fees are deductible per our cleaning deduction guide.

Charleston Market Overview

Charleston is consistently ranked among the top travel destinations in the United States and world, drawing visitors seeking its antebellum architecture, culinary scene, beach access, and cultural events. The STR market reflects this premium positioning.

Average Daily Rate (ADR): Charleston STRs average $200–$300/night across the market, with historic district properties, luxury homes, and beachfront properties commanding $350–$600+/night. Event weeks push premium properties to $800–$2,000+/night.

Seasonality: Peak season runs April–May (spring blooms, Spoleto, perfect weather) and September–October (fall, comfortable temperatures). Summer remains active despite heat. The Christmas and New Year's holiday period is a secondary peak driven by destination travelers.

Occupancy rates: Licensed Charleston STRs achieve 65–75% annual occupancy in premium locations, with the city's year-round appeal supporting stronger shoulder-season occupancy than many comparable markets.

How DeductFlow Helps Charleston STR Hosts

Charleston STR hosts manage South Carolina's accommodations tax, historic property maintenance, permit compliance, and high-value event-week revenue. DeductFlow automates expense tracking and income categorization so your CPA can claim every deduction available to you.

For the full South Carolina STR picture, see our Myrtle Beach STR tax guide and Hilton Head STR tax guide.

Disclaimer

This article is for informational purposes and does not constitute tax, legal, or financial advice. Always consult a qualified CPA or tax professional for guidance specific to your situation. Verify current accommodations tax rates and STR permit requirements with the South Carolina Department of Revenue and City of Charleston before operating.