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Fixed-rate vs adjustable-rate mortgages

A fixed-rate mortgage keeps the same interest rate and principal-and-interest payment for the entire loan term. An adjustable-rate mortgage, or ARM, holds a fixed rate for an introductory period and then adjusts periodically based on a market index. Fixed buys certainty; an ARM trades some certainty for a lower introductory period. How long you will keep the loan is usually the deciding factor.

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Side by side

Fixed and adjustable, side by side

	Fixed-rate	Adjustable-rate (ARM)
Rate over time	Stays the same for the full term	Fixed for an intro period, then adjusts on a schedule
Payment certainty	Principal-and-interest payment never changes	Can rise or fall after the intro period
Protection	No surprises	Caps limit how much the rate can move per adjustment and over the life
Best when	You will hold the loan a long time	You expect to sell or refinance before it adjusts
Main risk	You pay for certainty you may not need short-term	Your payment could rise once the fixed period ends

ARMs include rate caps that limit adjustments; the CFPB publishes a consumer guide to how ARMs work. This is education, not an offer of any specific rate, term, or product.

Which way to lean

When each one wins

Lean fixed when…

You plan to stay in the home and keep the loan for many years.
Payment certainty matters more to you than chasing a lower intro period.
You want to set the payment and never think about adjustments.

Logan’s take: for most buyers planting roots, the fixed-rate is the calm choice, you know the principal-and-interest payment on day one and on year fifteen.

Lean ARM when…

You expect to sell or refinance before the fixed period ends.
You understand the caps and are comfortable with the post-intro adjustment.
A shorter expected hold makes the intro period the part that matters.

Logan’s take: an ARM can fit a known short horizon, a few-year assignment, for example, but only when you go in clear-eyed about what happens when it adjusts. We walk through the caps before you choose.

In Colorado

Choosing with your timeline in mind

The fixed-versus-ARM question is really a question about time. If you will hold the loan well past an ARM’s fixed period, the certainty of a fixed rate usually outweighs a lower introductory period. If your horizon is genuinely short and you understand the adjustment caps, an ARM can make sense. The Consumer Financial Protection Bureau publishes a plain-language guide to how ARMs adjust, which is worth reading before you decide. CFPB guide to adjustable-rate mortgages.

Common questions

Answered straight

What does the 5/1 or 7/6 in an ARM mean?+

The first number is the years the rate stays fixed; the second describes how often it adjusts afterward. We explain the exact structure of any ARM before you commit.

Can my ARM payment really jump?+

It can change after the fixed period, up or down, within caps that limit each adjustment and the lifetime move. Those caps are central to deciding whether an ARM fits.

Is a fixed-rate always safer?+

It is more predictable, which many buyers value. Whether that certainty is worth it depends on how long you will keep the loan.

Can I refinance an ARM into a fixed later?+

Often, yes, market and qualifying permitting. Some borrowers choose an ARM expecting to refinance or sell before it adjusts. We plan for that.

Keep exploring

Let’s match the loan to how long you’ll keep it.

One honest conversation usually settles it faster than another hour of reading. No pressure either way.

See which fits you

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