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Home / Miami / Calculators / Blended Rate Calculator

Miami Blended Rate Calculator

Blended Rate Calculator Miami mortgage estimates pre-filled with Miami-Dade County, Florida property-tax and insurance figures. Educational only.

Illustrative rate used: 6.875% (a conservative national average, not a quote). Estimates only, using an illustrative interest rate and current Florida county data. Not a quote, offer, or commitment to lend. Verify every figure with a licensed Florida lender before relying on it.

Published national-average rates are shown for educational comparison only, as of the date indicated, sourced from Mortgage News Daily / Freddie Mac PMMS. They are general averages — not a rate quote, offer, pre-qualification, rate lock, or commitment to lend. Your actual rate depends on your lender, credit profile, loan details, and market conditions.

Blended rates & keeping your low first rate

A blended rate is the weighted-average interest rate across two loans — common when you keep a low first mortgage and add a HELOC or second lien instead of refinancing the whole balance at today's higher rate. This tool weights each loan by its balance to show the effective rate and combined payment, so you can compare it to today's published average before deciding.

Frequently asked questions

What is a blended rate?

A blended rate is the weighted-average interest rate across two loans — for example, keeping a low first mortgage and adding a HELOC or second lien instead of refinancing the whole balance at today's higher rate. It is weighted by each loan's balance.

Why compare it to a published average?

Seeing your blended rate next to today's published national average helps you judge whether keeping the low first loan plus a second is cheaper than refinancing everything. The published average is shown for educational comparison only — not a rate quote.

Is the result a quote?

No. It is an educational estimate. Your actual rates depend on your lender, credit profile, loan details, and market conditions.

Local Insight

Understanding the Miami Market

Miami sits in Miami-Dade County, Florida. Neighborhoods such as Coral Gables, Coconut Grove, Brickell, Little Havana, and Wynwood each carry their own mix of home ages, price tiers, and insurance considerations that are worth understanding before you set a budget in Miami.

A buyer planning a budget in Miami usually starts from the area's approximate median home value of about $580,000 (a rough market benchmark, not a quote). Miami-Dade County's effective property-tax rate runs near 1.02% of a home's value per year, which on a $580,000 home works out to roughly $5,916 a year, typically collected monthly through an escrow account. Florida's homestead exemption can lower that bill for a primary residence.

Homeowners insurance is the other big Florida variable: county-level estimates put a typical annual premium around $7,000 on a roughly $400,000 home in Miami-Dade County, with the figure swinging up or down based on roof age, wind-mitigation features, and flood-zone exposure. For context on what local incomes look like, the area median income for a four-person household in Miami-Dade County is about $81,000 per year, the benchmark many first-time-buyer and affordability programs use to set eligibility.

Taken together, the median price, Miami-Dade County tax rate, and insurance outlook are what shape a realistic monthly payment in Miami — which is why the calculator above is pre-set with this county's numbers. Adjust the inputs to match your own situation, and confirm current figures with a licensed Florida lender of your choice before making any decisions.