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What Is a Fixed-Rate Mortgage?


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    Highlights

  • Fixed-rate mortgages maintain a constant interest rate and monthly payment for the entire loan term, providing predictability for budgeting
  • They differ from adjustable-rate mortgages by not fluctuating with market conditions, making them ideal for long-term homeowners
  • Borrowers pay more interest over longer terms like 30 years compared to shorter 15-year terms, and calculations can be done via formulas or online calculators
  • Advantages include protection against rate increases and stable payments, while disadvantages involve missing out on lower rates without refinancing
Table of Contents

What Is a Fixed-Rate Mortgage?

Let me explain what a fixed-rate mortgage really is. It's a home loan where the interest rate stays fixed for the whole term, meaning your monthly payments remain constant too. You use these loans to buy a home or property.

If you're someone who values predictability in your budget, fixed-rate mortgages are a go-to choice. They usually come in 15 or 30-year terms, but you and your lender can agree on other lengths.

Key Takeaways

  • A fixed-rate mortgage keeps the interest rate fixed for the entire loan term.
  • These are popular for financing residential properties.
  • The interest rate doesn't change with market shifts.
  • They're preferred by borrowers seeking predictable payments or planning long-term ownership.

How a Fixed-Rate Mortgage Works

On the market, you'll find variable-rate and fixed-rate mortgages as the main types. Variable ones adjust based on benchmarks and can change over time.

With a fixed-rate mortgage, your interest rate stays the same from start to finish, unlike ARMs that move with the market. So, no matter if rates rise or fall, yours doesn't budge.

If you plan to stay in your home long-term, this is often the way to go because payments are steady—you always know what to expect each month.

The term is how long you have to pay it off, typically 10 to 30 years in the US, with 30 years being the most common, then 15 years.

Remember, an open fixed-rate mortgage lets you pay down principal early without fees, but closed ones charge extra for that.

How to Calculate Fixed-Rate Mortgage Costs

The interest you pay depends on the amortization period—the time over which payments are spread. Your rate and payment stay the same, but early on, more goes to interest, and later, more to principal.

Longer terms mean more total interest; a 15-year loan costs less in interest than a 30-year one.

To figure costs or compare options, use a mortgage calculator. Input home price, down payment, term, and rate, and it gives you monthly payments, breakdowns, and an amortization schedule.

Nearly 90% of homeowners choose the 30-year fixed-rate mortgage.

If you like math, here's the formula for monthly payment: M = P [i(1+i)^n] / [(1+i)^n - 1], where M is monthly payment, P is principal, i is monthly interest rate, n is number of months.

For just the monthly interest: (loan balance × interest rate) / 12.

Fixed-Rate Mortgages vs. Adjustable-Rate Mortgages (ARMs)

ARMs mix fixed and variable elements—they start with a fixed rate for a few years, then adjust variably.

Their payments can vary, unlike the consistent ones in fixed-rate loans.

If you don't mind rate changes or plan to sell or refinance soon, an ARM might suit you, especially if you expect rates to drop.

Fixed-Rate Amortized vs. Non-Amortized Mortgages

Most fixed-rate loans are amortized, with steady payments covering interest and principal over time, following a schedule where principal payments increase as the loan matures.

Non-amortized fixed-rate loans include balloon or interest-only types. Balloon loans defer interest to a big end payment, and interest-only require only interest payments until a set date.

If rates drop, you can refinance your fixed-rate mortgage, but watch for fees.

Advantages and Disadvantages of Fixed-Rate Mortgages

These loans have pros and cons for you as a borrower and for lenders. You get protection from rate hikes and predictable payments, making budgeting easier. Lenders benefit when rates drop because they keep collecting higher fixed interest.

On the downside, if rates fall, you're stuck paying more unless you refinance, and lenders miss out on higher earnings when rates rise.

Pros and Cons

  • Pros: Protects against rate volatility, predictable payments, higher lender profits in low-rate times.
  • Cons: No flexibility for borrowers, borrowers pay more in low-rate periods, lenders earn less in high-rate times.

Why Should I Choose a Fixed-Rate Over an Adjustable-Rate Mortgage?

You might pick a fixed-rate for the stability—it locks your rate, so payments are always the same, helping you plan finances without surprises.

How Would an Economic Slump Affect My Fixed-Rate Mortgage?

In a slowdown, rates often drop, but your fixed payment stays the same. If buying or refinancing, you could get a lower rate then.

What Are the Benefits of a Fixed-Rate Mortgage?

Key benefits are shielding from rate changes and knowing exact payments for better financial planning.

The Bottom Line

Since most can't buy homes outright, mortgages are essential. Research options to find what fits you. Fixed-rate ones offer security with unchanging rates and payments, but you won't automatically get lower rates if they fall—refinancing is needed for that.

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