ZIP 29405 sales tax rate: 9%
Components estimatedCharleston, SC — Charleston County
Quick answer
Purchases delivered to ZIP 29405 are taxed at 9%, the combined South Carolina state, county, city and district rate for Charleston as of January 1, 2026. A $100 taxable purchase costs $109 — $9 of tax. South Carolina allows local add-ons, so a neighbouring ZIP can differ.
Calculate tax for 29405
Pre-loaded with the 9% rate for 29405.
Sales tax calculator
The full combined rate of 9% applies to general merchandise.
Enter a pre-tax amount to see the tax due in ZIP 29405 — Charleston, SC.
- Pre-tax
- $100
- Sales tax at 9%
- $9
- Total
- $109
Tax is rounded to the nearest cent on the full transaction, which is how most registers compute it. Line-item rounding can differ by a cent or two on long receipts.
Reverse out sales tax
Split a receipt total into item price and the 9% tax collected.
Backing out 9% for ZIP 29405.
- Item price before tax
- $100
- Sales tax collected
- $9
How the 9% breaks down
Every jurisdiction that takes a share of this rate.
| Jurisdiction | Level | Rate | Share of total |
|---|---|---|---|
| South Carolina state | state | 6% | 67% |
| Charleston County local option and transportation | county | 2% | 22% |
| Charleston County education capital improvement | special district | 1% | 11% |
| Combined rate | 9% |
Tax table for 29405
Common purchase amounts at this rate.
| Purchase | Sales tax | Total |
|---|---|---|
| $10 | $0.90 | $10.90 |
| $25 | $2.25 | $27.25 |
| $50 | $4.50 | $54.50 |
| $100 | $9.00 | $109.00 |
| $500 | $45.00 | $545.00 |
| $1,000 | $90.00 | $1090.00 |
| $5,000 | $450.00 | $5450.00 |
| $25,000 | $2250.00 | $27250.00 |
About ZIP 29405
ZIP boundaries are postal routes, not tax boundaries.
South Carolina exempts groceries from the state 6% but local option taxes can still apply, and residents 85 and older may claim a 1% exemption. For destination-based sourcing, South Carolina sellers should confirm the rate by full street address rather than ZIP alone — a single ZIP can cross a city limit or a transit-district boundary, and the rate follows the boundary, not the mail route.
Other ZIP codes in Charleston
All carry the 9% Charleston rate.
Compare with nearby ZIP codes
Nearest covered ZIP codes in other metros.
Go deeper
Download this metro's data
The Charleston jurisdiction stack, combined rate (9%), effective date and Census figures are published as open files. Free to use with attribution — no key, no signup.