Charleston County, South Carolina Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
Charleston County uses a coastal benchmark for higher-price Lowcountry mortgage estimates.
Loan Details
$70,000 · LTV 80%
Buyer Profile
Extra Payment
Optional principal-only payment used to estimate payoff speed and interest savings.
Monthly Payment
$1,770 Principal & Interest · $160 Property Taxes · $125 Other
Methodology and limitations
Last reviewed:
Methodology
Uses standard principal-and-interest mortgage math, then models housing-cost inputs such as tax, insurance, PMI, and extra-payment scenarios where available.
Limitations
Planning estimate only. Actual approval, escrow, PMI, fees, taxes, insurance, and closing disclosures depend on lender, property, borrower profile, and local rules.
Charleston County, South Carolina Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
South Carolina
Charleston County uses a coastal benchmark for higher-price Lowcountry mortgage estimates.
Use this mortgage calculator for Charleston County, South Carolina to estimate the monthly payment with principal, interest, configured annual taxes, eligible exemptions, and assistance programs when the buyer profile matches the conditions.
What This Estimate Uses
- Geographic level: county
- Configured property tax rate: 0.55%
- Configured benefits or exemptions: 3
- Reviewed sources: 4
What Changes in Charleston County, South Carolina
- Data level used: county. This page uses the most specific available data layer for Charleston County, South Carolina.
- Configured combined annual property tax rate: 0.55% before exemptions and buyer-specific conditions are applied.
- Configured down payment assistance programs: SC Housing Down Payment Assistance.
Local Tax Assumptions
These are the annual tax assumptions configured for this page. The calculator applies them to the appropriate value, then accounts for exemptions or conditions when the buyer selects them.
- South Carolina Local Property Tax - 0.550%
Programs and Exemptions Included
These benefits do not mean automatic approval. The calculator models them when the buyer inputs match the configured eligibility conditions.
- SC Housing Down Payment Assistance - $10,000 (requires: first-time buyer, primary residence)
- Mortgage Credit Certificate (MCC) - 20% of mortgage interest (requires: first-time buyer, primary residence, buyer has a Mortgage Credit Certificate)
When This Estimate Can Change
- The actual property tax bill depends on the address, overlapping taxing jurisdictions, approved exemptions, and appraised value.
- Home insurance, flood insurance, HOA dues, and PMI can vary by property, lender, and buyer profile.
- Configured closing costs include South Carolina Deed Recording Fee, but other settlement charges may appear on a real loan estimate.
2025 Local Home-Purchase Mortgage Market in Charleston County, South Carolina
Local home-purchase mortgage market context for Charleston County, South Carolina: in 2025 Home Mortgage Disclosure Act (HMDA) data, Charleston County logged 9,165 final-action applications. The mortgage denial rate was 9.35% and the originated share was 66.54%.
| Metric | Charleston County | State |
|---|---|---|
| Final-action applications | 9,165 | 136,598 |
| Mortgage denial rate | 9.35% | 14.47% |
| Originated share | 66.54% | 62.56% |
Source: FFIEC HMDA 2025 (LAR modificado, compra de vivienda) · Texas vs California mortgage denial rates (methodology)
Local Data and Sources
Last editorial verification: May 15, 2026. This page combines the official data layers configured for Charleston County, South Carolina.
The sources used on this page are Consumer Financial Protection Bureau mortgage cost guidance, South Carolina property tax, South Carolina deed recording fee, SC Housing homebuyer programs. Each source lists which rate, exemption, or program it validates and when it was last reviewed.
- Consumer Financial Protection Bureau mortgage cost guidance - verified May 3, 2026 - General U.S. mortgage closing-cost and mortgage-cost guidance.
- South Carolina property tax - verified May 15, 2026 - Official South Carolina Department of Revenue source for property-tax guidance.
- South Carolina deed recording fee - verified May 15, 2026 - Official South Carolina Department of Revenue source for deed recording fee guidance.
- SC Housing homebuyer programs - verified May 15, 2026 - Official SC Housing source for homebuyer and down payment assistance programs.
Frequently Asked Questions
What South Carolina closing cost is modeled?
The state estimate includes the South Carolina deed recording fee on the sale price.
What South Carolina benefits are modeled?
The calculator models the senior homestead exemption and SC Housing down payment assistance when the buyer profile matches.
Why include Charleston County?
Charleston County is a high-demand coastal market with large homebuyer search volume.
Does this mortgage calculator include taxes and insurance?
Yes. This calculator estimates your full monthly housing payment by combining principal and interest with property taxes, homeowners insurance, and PMI when your down payment is below 20%. The result reflects a PITI-style payment rather than principal and interest alone, which helps you compare homes and loan scenarios more realistically before talking to a lender.
When does PMI apply on a mortgage?
Private Mortgage Insurance (PMI) typically applies when your loan-to-value ratio exceeds 80%, meaning your down payment is less than 20% of the purchase price. PMI is usually added to the monthly payment until you reach sufficient equity. This calculator includes PMI in the estimate when your inputs trigger it, so you can see how a smaller down payment affects affordability.