ARM vs. Fixed-Rate Mortgage: Making the Right Choice

Choosing between an adjustable-rate mortgage (ARM) and a fixed-rate mortgage is a crucial decision. Here's what you need to know.

Fixed-Rate Mortgages

How They Work

Your interest rate stays the same for the entire loan term (typically 15 or 30 years).

Advantages

• **Predictability**: Same payment every month
• **Protection**: Immune to rate increases
• **Simplicity**: Easy to understand and budget

Disadvantages

• **Higher initial rates**: Usually 0.5-1% higher than ARM starting rates
• **Less flexible**: Must refinance to get lower rates
• **Higher payments**: If rates drop, you're stuck

Adjustable-Rate Mortgages (ARMs)

How They Work

Lower initial rate for a set period (5, 7, or 10 years), then adjusts periodically.

Understanding ARM Notation

A 5/1 ARM means:

• Fixed rate for first 5 years
• Adjusts annually (1) after that

Advantages

• **Lower initial rate**: Save money early on
• **Good for short-term**: If selling/refinancing before adjustment
• **Caps protect you**: Limits on how much rate can increase

Disadvantages

• **Uncertainty**: Don't know future payments
• **Risk**: Payments could increase significantly
• **Complexity**: Harder to understand and plan

Rate Caps Explained

ARMs have three types of caps:

1. Initial cap: Max first adjustment

2. Periodic cap: Max each subsequent adjustment

3. Lifetime cap: Max over loan life

Example: 2/2/6 caps mean:

• First adjustment: Up to 2%
• Each adjustment after: Up to 2%
• Total over life: Up to 6%

When to Choose Each

Choose Fixed-Rate If:

• You plan to stay 7+ years
• You value payment predictability
• You're risk-averse
• Current rates are historically low

Choose ARM If:

• You'll move before adjustment
• You expect income to increase
• You can handle payment increases
• ARM rate is significantly lower

Calculate Your Options

Compare different scenarios:

• [ARM Calculator](/calculators/arm-mortgage)
• [Standard Mortgage Calculator](/)