Refinance Calculator in South Dakota
Should you refinance your South Dakota mortgage? The current average rate is 6.65% and closing costs average 1.5% of the loan balance (about $4,800 on a $320K home). Calculate your break-even point below. Formula shown, sources cited — no account required.
ℹIn South Dakota, refinancing closing costs average 1.5% — approximately $4,800 on the median home. Saving $200/month breaks even in 24 months (2.0 years).
When Does Refinancing Make Sense in South Dakota?
Refinancing in South Dakota involves paying closing costs of approximately 1.5% of your loan balance to obtain a lower interest rate. The general rule: if you can lower your rate by at least 0.75–1%, refinancing is worth exploring. With South Dakota's current average rate of 6.65%, the savings depend heavily on how far rates drop from your existing loan.
The break-even point is calculated by dividing total closing costs by monthly savings. For example, if refinancing saves you $200/month and costs $4,800, you break even in 24 months (2.0 years). If you plan to stay in yourSouth Dakota home longer than that, refinancing is likely beneficial.
Questions You Might Ask — Refinance Calculator in South Dakota
What is the average refinance rate in South Dakota?
The average 30-year fixed mortgage rate in South Dakota is currently approximately 6.65%. Refinance rates are typically 0.1–0.2% higher than purchase rates. Rates vary by credit score, loan-to-value ratio, and lender — shopping at least 3 lenders typically saves $1,000+ over the loan term.
What are refinance closing costs in South Dakota?
Average closing costs to refinance in South Dakota are approximately 1.5% of the loan balance. On an $256K loan (80% of the $320K median home price), that's roughly $3,840 in upfront costs. These include lender fees, title insurance, escrow, and prepaid interest.
When does refinancing make sense in South Dakota?
Refinancing makes sense when you can lower your rate by at least 0.5–1% and plan to stay in your South Dakota home long enough to break even. With 1.5% closing costs, saving $200/month means breaking even in 24 months (2.0 years). Saving $300/month breaks even in 16 months.
Can I do a cash-out refinance in South Dakota?
Yes, cash-out refinancing is available in South Dakota. Most lenders allow you to access up to 80% of your home's equity. With the median home price of $320K, a homeowner who has built equity over several years could access substantial cash for home improvements, debt consolidation, or other needs — while potentially lowering their rate.
How does South Dakota's property tax rate affect refinancing?
South Dakota's property tax rate of 1.14% means your escrow includes approximately $304/month in property taxes on the median home. This is part of your total PITI payment and factors into the break-even analysis — a lower interest payment saves money, but your total monthly obligation also includes taxes and insurance that don't change with a refinance.
Data Sources & Methodology
Mortgage rates from Freddie Mac PMMS. Closing cost estimates from ClosingCorp and CFPB national survey data. Median home prices from the National Association of Realtors (NAR). Property tax rates from ATTOM Data Solutions. Last updated 2026.