Which is better, a fixed or floating interest rate?

There’s no universal answer, since it depends on risk tolerance, financial stability, and how long the loan will be held. A fixed rate offers certainty; a floating rate offers the possibility of savings alongside the risk of a higher cost later.

Can I switch from a floating rate to a fixed rate later?

In some cases, depending on the specific loan and lender, refinancing to a fixed rate may be possible, though this typically involves its own costs and requirements. Checking with a specific lender clarifies whether this option exists for a given loan.

Are floating rates always riskier than fixed rates?

Generally, yes, in the sense that a floating rate introduces payment uncertainty that a fixed rate doesn’t have. Whether that risk is worth the potential for a lower initial cost depends on individual financial circumstances and comfort with uncertainty.

Does having no U.S. credit history affect which rate structure is offered?

It can. Lenders often reserve their better rates, fixed or floating, for borrowers with an established credit history, so someone without one yet may see higher starting rates on either structure until a track record builds. This doesn’t rule out either option, but it’s worth factoring into a realistic comparison of the two.

Why do floating rates sometimes start lower than fixed rates?

Lenders generally price in less certainty risk for themselves on a floating-rate loan, since they aren’t locking in today’s rate for the full loan term the way they are with a fixed rate. That lower starting point is the trade a borrower makes for taking on the possibility that the rate could rise later. Whether that trade makes sense depends on how the rest of the comparison, tolerance for risk, loan length, and financial cushion, weighs out.

Back to Glossary

What is a fixed interest rate? Compared to floating

Key takeaways
- A fixed interest rate stays the same for the entire life of a loan, giving predictable payments.
- A floating interest rate⁠(opens in new window) can change over time, based on a benchmark rate in the broader market.
- Fixed rates offer certainty; floating rates carry the possibility of paying less, or more, depending on how rates move.
- Most mortgages, auto loans, and personal loans are available with either structure, depending on the lender.
- Comfort with payment uncertainty is often the deciding factor between the two, and that calculation can look different for someone still building financial stability in a new country.

When borrowing money, the choice usually comes down to a fixed rate or a floating rate, and that choice matters more than it might seem. It shapes not just the rate offered on day one, but how predictable every payment afterward will be for as long as the loan lasts. Here’s how the two structures differ, and what actually goes into deciding between them.

What is a fixed interest rate?

A fixed interest rate remains constant for the entire term of a loan, meaning the interest cost, and often the payment amount, doesn’t change regardless of what happens in the broader market. This is the opposite of a floating interest rate, which can rise or fall based on a benchmark rate over time, according to the CFPB’s comparison of fixed and adjustable-rate loans⁠(opens in new window).

Fixed rate vs floating rate: key differences

Choosing between a fixed and floating rate comes down to how much certainty is worth versus how much risk is acceptable in exchange for a potentially lower initial cost.

	Fixed interest rate	Floating interest rate
Predictability	Stays the same for the life of the loan	Can change periodically based on a benchmark rate
Initial rate	Often slightly higher than an equivalent floating rate	Often starts lower, with the possibility of change
Risk	Payment amount is certain and predictable	Payment amount can increase if rates rise
Typical products	Common on mortgages, auto loans, and personal loans	Common on mortgages (as an ARM), some credit lines, and certain personal loans
Best for	Borrowers who want payment certainty	Borrowers comfortable with some uncertainty, betting on stable or falling rates

A few things affect how much this decision matters:

A fixed rate protects against rising rates. If broader interest rates increase after locking in a fixed rate, the cost doesn’t change.
A floating rate can save money if rates fall or stay stable, but not without limits. Floating rates typically come with caps that limit how much the rate can move at any one adjustment and over the life of the loan, according to the CFPB’s explanation of ARM rate caps⁠(opens in new window). The rate itself moves based on an index plus a lender’s margin, a mechanism the CFPB breaks down in more detail⁠(opens in new window).
Financial stability factors into the decision. If an increased payment would strain a budget, the certainty of a fixed rate may be worth more than the potential savings of a floating one.
The timing of the decision matters too. A fixed rate locks in whatever the market rate happens to be on the day the loan is taken out, for better or worse. Someone borrowing when rates are relatively high may end up paying more for certainty than someone who borrows during a lower-rate period, which is part of why comparing current rate environments, not just the two structures in the abstract, is worth doing before committing.
Refinancing is usually possible but rarely free. Moving from a floating rate to a fixed one, or the reverse, generally means replacing the original loan, which can involve its own fees and qualification requirements. Treating the initial choice as reasonably durable, rather than something to revisit casually, tends to lead to a more realistic decision upfront.

What this choice means for newcomers and immigrants

For someone saving for and buying a first home⁠(opens in new window) as an immigrant, the fixed versus floating decision on a mortgage is a genuinely consequential one, since it affects payment predictability for years or decades. Many first-time buyers, particularly those still building financial stability in a new country, prioritize the certainty of a fixed rate over the potential savings of a floating one, especially while income and credit history are still becoming established.

There’s also a practical reason this decision can feel higher-stakes for a newcomer specifically: a mortgage payment is often being weighed against other financial commitments at the same time, including money sent home regularly. A floating rate that rises unexpectedly doesn’t just affect the mortgage budget in isolation, it can squeeze the amount available for everything else in a given month. That’s part of why the predictability of a fixed rate carries extra weight for many newcomers, even at a somewhat higher starting cost.

The choice can also intersect with what rate is actually offered in the first place. A thinner credit history sometimes limits access to the better rates on either structure, which is worth factoring into the comparison alongside the APR⁠(opens in new window) quoted for each option. Building a stronger credit history over time tends to widen access to more competitive pricing on whichever structure ends up being the right fit.

First steps when comparing fixed and floating rate options

Considering tolerance for payment uncertainty matters most, since a floating rate can mean a higher payment later, not just a lower one now.
Comparing the initial rates for both options directly shows how much the certainty of a fixed rate is actually costing.
Thinking about how long the loan will be held is worth doing, since a floating rate’s risk compounds the longer the exposure to potential rate changes.
Checking a credit score⁠(opens in new window) beforehand can help set realistic expectations about what rates are likely to be offered on either structure, which matters especially for anyone still building a U.S. credit history.

Common questions about fixed and floating interest rates

Which is better, a fixed or floating interest rate?

There’s no universal answer, since it depends on risk tolerance, financial stability, and how long the loan will be held. A fixed rate offers certainty; a floating rate offers the possibility of savings alongside the risk of a higher cost later.
Can I switch from a floating rate to a fixed rate later?

In some cases, depending on the specific loan and lender, refinancing to a fixed rate may be possible, though this typically involves its own costs and requirements. Checking with a specific lender clarifies whether this option exists for a given loan.
Are floating rates always riskier than fixed rates?

Generally, yes, in the sense that a floating rate introduces payment uncertainty that a fixed rate doesn’t have. Whether that risk is worth the potential for a lower initial cost depends on individual financial circumstances and comfort with uncertainty.
Does having no U.S. credit history affect which rate structure is offered?

It can. Lenders often reserve their better rates, fixed or floating, for borrowers with an established credit history, so someone without one yet may see higher starting rates on either structure until a track record builds. This doesn’t rule out either option, but it’s worth factoring into a realistic comparison of the two.
Why do floating rates sometimes start lower than fixed rates?

Lenders generally price in less certainty risk for themselves on a floating-rate loan, since they aren’t locking in today’s rate for the full loan term the way they are with a fixed rate. That lower starting point is the trade a borrower makes for taking on the possibility that the rate could rise later. Whether that trade makes sense depends on how the rest of the comparison, tolerance for risk, loan length, and financial cushion, weighs out.

In Summary

A fixed interest rate trades a potentially higher initial cost for predictable payments, while a floating rate offers the possibility of savings alongside real uncertainty. Neither structure is inherently the right answer. Weighing personal tolerance for uncertainty against financial stability, including where a credit history currently stands and what else the budget needs to absorb month to month, helps in choosing the structure that genuinely fits.

For newcomers in particular, it’s worth remembering that today’s rate offer isn’t necessarily permanent. As a credit history builds and income becomes more established, refinancing or requalification for better terms often becomes possible, even if the first loan comes with a less favorable rate on either structure. Understand your options fully before choosing between a fixed or floating rate on your next loan.

This publication is provided for general information purposes only and is not intended to cover all aspects of the topics discussed herein. This publication is not a substitute for seeking advice from an applicable specialist or professional. The content in this publication does not constitute legal, tax, or other professional advice from Remitly or any of its affiliates and should not be relied upon as such. While we strive to keep our posts up to date and accurate, we cannot represent, warrant, or otherwise guarantee that the content is accurate, complete, or up to date.