Adjustable-rate mortgage loans

Adjustable-rate mortgages are a good choice if you:

  • Plan to move or refinance before the rate adjusts
  • Expect your income to increase in the future
Ready to get started?

What is an ARM loan? 

Unlike a fixed-rate mortgage, when you opt for an adjustable-rate mortgage (ARM), the interest rate you start with isn't set in stone and will fluctuate throughout the loan's duration.

So, how does the rate change? It's all about two key elements: the index and the margin. The index is a baseline interest rate influenced by the broader economy. Common indices include the prime rate and the Secured Overnight Financing Rate (SOFR). The margin is set in your loan agreement and usually stays the same during the life of the loan.

Pro Tip

Want some help figuring out how much home you can afford? Our Affordability Calculator can help you work out your ideal price range.

How do ARM loans work?

ARMs usually start with a fixed interest rate for a predetermined period, like 3, 5 or 10 years. During this time, your rate won't change, which makes budgeting easier. After this period ends, your rate will start to adjust according to the current index, plus the margin.

Adjustable-rate mortgage requirements

From loan limits to income criteria, different lenders will have different ARM requirements. That’s why it’s important to understand what you’re getting into before you sign the dotted line. Let’s check out the key factors that affect your loan eligibility and the terms a lender will offer you.

ARM loan limits

Adjustable-rate loans come with specific limits that vary depending on the type of loan and the lender's guidelines. For instance, conforming ARMs are bound by limits set by government-sponsored enterprises like Fannie Mae and Freddie Mac. These limits reflect average home prices in a given area, and exceeding these limits would classify the loan as a jumbo ARM, which is typically used for higher-priced properties.

ARM loan interest rates

Always keep in mind that interest rates for an ARM loan will vary over the life of the loan. Remember to check out today’s current rates to compare loan terms and find what works best for you.

But here's another important thing to remember about ARMs: they come with caps. These caps limit how much your interest rate can increase at each adjustment period and over the life of the loan. This means even if rates in the market surge, the impact on your rate has a ceiling, protecting you from extreme jumps in your monthly payments.

There are a few types of caps:

Initial adjustment cap: This cap limits how much the interest rate can increase the first time it adjusts after the fixed-rate period. It's usually higher than the subsequent caps.

Subsequent adjustment cap: This cap limits the rate change for each adjustment period after the first. This means even if the index rate spikes, the impact on your mortgage will be cushioned somewhat.

Lifetime cap: This is the maximum rate change allowed over the life of the loan. No matter what happens with the index, your interest rate can never exceed this cap.

Pro tip

The financial index changes with the economy, so it can go up or down. The margin is a set rate added by your lender and it doesn't change. Together, they determine your mortgage rate. Keep an eye on both to help predict your future payments!

ARM loan down payments

The down payment for an ARM can vary depending on your lender, the specifics of your loan and the house you're eyeing. If you’re a first-time home buyer or eligible for certain government programs, you might even snag a lower down payment. ARMs can be great if their initial rates are lower, which can make those first payments more managable. Just make sure to consider that rates may start out low but will rise and fall over time.

ARM loan mortgage insurance

Mortgage insurance acts as a little savings account for the lender, just in case you find it tough to keep up with your loan payments. While it might feel like an extra step, it's actually a handy tool that makes owning a home more accessible if you're not ready to plunk down a big initial payment.

The cost of this insurance varies based on your loan size, down payment and credit score. But here's a cheerful bit of news: as you start building equity in your home and hit certain milestones, you can often wave goodbye to this extra monthly cost. Just keep chatting with your lender about your mortgage insurance and any changes in your loan situation—they're there to help you navigate these waters smoothly!

ARM loan credit score

When it comes to ARM loans, or any loan for that matter, a sparkling credit score can really make a difference! A higher score often means better loan terms, like lower initial interest rates. Why? Because lenders see a high credit score as a sign that you’re a safe bet and more likely to keep up with payments.

If your credit score isn’t quite where you want it to be, don’t panic. There may still be ARM options out there for you. Even a small bump up can swing loan terms more in your favor. Start by keeping a close eye on your credit report, paying your bills on time, keeping your credit utilization low, and chipping away at any debts. Before you know it, you’ll be in a stronger position to unlock more mortgage options!

Pro Tip

Ensure you explore all promotions and discounts available by lenders you are exploring for your mortgage. For example, through Citi’s Mortgage Relationship Pricing program, new and existing Citi banking customers can enjoy a discount on closing costs or interest rates. Not a customer? No worries–you can open an account at the time of applying and still reap these benefits. Even having just one dollar in your account can make you eligible for discount on closing costs.

ARM home loan DTI

Let's chat about your debt-to-income ratio, AKA your DTI—a key player when you're eyeing a loan like an ARM. Simply put, your DTI ratio is a comparison of your monthly debt payments to your monthly income. A lower ratio shows you're a pro at managing your finances and makes you a star candidate for some appealing loan terms.

Keeping your DTI ratio in great shape could help you lock in a lower initial interest rate, making those first mortgage payments a little easier on your wallet.

Thinking about applying for an ARM and want to spruce up your DTI ratio? You might consider tackling those high-interest debts or brainstorming ways to boost your income. These moves can really polish your loan profile and improve your chances of snagging better terms.

ARM loan income requirements

When it comes to qualifying for an ARM Mortgage, the income requirements will depend on how much you want to borrow, your other debts, your day-to-day expenses and, of course, the lender you choose. Each lender has their own requirements for what makes a qualifying borrower, but one thing they all have in common is the need to see that you can comfortably handle the monthly payments.

It's a smart move to get really familiar with your financial landscape and have your documents ready to go.

How is an adjustable-rate mortgage different from a fixed-rate mortgage? 

Feature Fixed-Rate Mortgage Adjustable-Rate Mortgage (ARM)
Interest Rate Stability Consistent for life of loan Lower initial rate, then variable
Monthly Loan Payments Unchanging Variable after initial period
Rate Fluctuation Protection Long-term cost savings by avoiding fluctuating rates Rate adjustment caps limit how much interest rates can increase
Recommended For Buyers seeking financial stability Buyers planning to move or refinance in near future

How do I apply for an adjustable-rate mortgage?

Applying for an Adjustable-Rate Mortgage (ARM) is exactly like applying for a conventional mortgage, with a slight distinction. When applying for an ARM, it's crucial to discuss and understand the specific terms of the adjustable rate, including the initial fixed-rate period, the frequency of rate adjustments, and the rate caps. To help you navigate the process, follow this guide:

1. Understand the terms: Before applying, make sure you fully understand how ARMs work. This is Unlike fixed-rate mortgages, the interest rate on an ARM can change periodically after the initial fixed period based on market conditions. This means your monthly payments can increase or decrease.

2. Check your credit score: Your credit score is crucial as it influences the interest rate you'll qualify for. Ensure your credit is in good shape to get the best possible terms.

3. Gather financial documents: You will need to provide various documents, including recent pay stubs, tax returns, financial statements and a list of debts and assets.

4. Get pre-approved: Getting pre-approved can give you a better idea of what you can afford. This is where programs like the Citi SureStart® Pre-Approval can come in handy. This pre-approval not only gives you a clear picture of your purchasing power but also provides a strong commitment to lend which reassures sellers of your serious intent to buy. This gives you a significant advantage in a competitive housing market.

5. Submit your loan application: Once you’ve found the home for you, it’s time to submit a formal application. The lender will then process your application and conduct an appraisal of the property to ensure it’s worth the loan amount.

6. Review the loan estimate: The lender will provide a loan estimate that outlines the costs of the mortgage. Review this carefully to understand all fees and the true cost of the loan.

7. Close on the loan: If everything is in order and you accept the terms, you will close the loan. This involves signing all the necessary paperwork, paying any closing costs and finalizing the mortgage agreement.

Need expert advice before you apply?

Adjustable-rate mortgage FAQs

  • A 5/1 ARM is a home loan with an initial fixed interest rate for the first five years, followed by an adjustable rate that can change annually based on market conditions. During the first five years, you can enjoy the stability of a consistent payment amount that is often lower than fixed-rate mortgages, making it easier to manage your budget in the short term. After the initial five-year period, the interest rate on a 5/1 ARM adjusts annually, which means your payment could increase or decrease based on market conditions. It’s important to understand the terms associated with this adjustment, including rate caps that limit how much the interest rate can change during each adjustment period and over the life of the loan. This provides a level of protection against significant rate increases and helps you plan ahead.

  • Absolutely! In fact, refinancing an ARM can be a strategic move to secure a lower interest rate, reduce monthly payments or switch to a fixed-rate mortgage. This process involves taking out a new mortgage loan that pays off your existing ARM, potentially under more favorable terms. It's a common step homeowners take as they approach the end of the initial fixed-rate period of an ARM, especially if interest rates are favorable. When considering refinancing your adjustable ARM mortgage, it's important to assess the timing and the market conditions. If the rates have dropped since you first secured your ARM, refinancing could lead to significant savings on interest over the life of the loan. Additionally, refinancing provides an opportunity to adjust the term of the loan, either by shortening it to pay off the mortgage faster or extending it to lower monthly payments. Always consider the closing costs and the length of time you plan to stay in your home to ensure that refinancing is the right choice for you.

  • The amount an adjustable-rate mortgage (ARM) can increase depends on its specific terms, particularly the caps set in the loan agreement. For example, if an ARM has a lifetime cap of 5%, regardless of how high the index it's tied to might rise, the interest rate can never be more than 5% higher than the first rate change. If the initial rate is 4%, the maximum it could ever reach would be 9%. This cap system helps borrowers by limiting the extent of rate increases and providing some predictability to their future financial commitments.