Fixed Rate vs ARM Mortgage in Florida
Compare fixed-rate and adjustable-rate mortgage (ARM) options in Florida. Understand payment stability vs initial savings using Florida home prices.
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Florida Market Data
Median Home Price
$380,000
Property Tax Rate
0.86%
Avg Home Insurance
$3,600/yr
Cost of Living
102 / 100
Fixed-Rate (30-Year)
Interest Rate6.88%
Monthly P&I$1,997
Total Monthly (PITI)$2,569
Total Interest (30yr)$414,943
Rate ChangesNever
Payment Predictability100% fixed
5/1 ARM
Initial Rate (Yrs 1-5)6.13%
Monthly P&I (Initial)$1,847
Est. Rate After Adj.7.88%
Est. Payment After Adj.$2,204
5-Year Savings vs Fixed$8,996
Rate ChangesAnnually after yr 5
Which is Better for You?
The 5/1 ARM saves $8,996 over the first 5 years in Florida. If you plan to stay long-term, the fixed rate provides certainty. If rates drop, the ARM adjusts downward too.
Fixed-Rate (30-Year)
Advantages
- +Payment never changes
- +No rate risk
- +Simple to understand
- +Best for long-term owners
Disadvantages
- -Higher initial rate
- -Higher initial payment
- -No benefit if rates drop
5/1 ARM
Advantages
- +Lower initial payments
- +$8,996 saved in first 5 years
- +Benefits from rate decreases
Disadvantages
- -Rate uncertainty after year 5
- -Payment could increase significantly
- -Harder to budget long-term
Frequently Asked Questions
What is a 5/1 ARM mortgage?
A 5/1 ARM has a fixed interest rate for the first 5 years, then adjusts once per year based on a market index plus a margin. The initial rate is usually 0.5% to 1% lower than a comparable 30-year fixed rate. Rate caps limit how much the rate can increase at each adjustment and over the life of the loan.
When does a fixed-rate mortgage make more sense than an ARM?
A fixed-rate mortgage is better when you plan to stay in your home long-term, interest rates are historically low, or you value payment predictability. It protects you from rising rates and simplifies long-term budgeting.
How much can an ARM rate increase?
Most ARMs have caps that limit rate increases: a periodic cap (typically 2% per adjustment), and a lifetime cap (typically 5-6% above the initial rate). For example, if your initial rate is 5.5%, the maximum it could reach is usually around 10.5-11.5% over the life of the loan.
Fixed vs Arm Mortgage in Other States
See how this comparison changes based on different state tax rates, home prices, and costs.
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