How FHA ARM Loans Work, and How to Refinance When You’re Ready

What Is an FHA Adjustable-Rate Mortgage?

The Federal Housing Administration (FHA) insures adjustable-rate mortgages (ARMs), not just fixed-rate loans. An FHA ARM loan has an initial fixed-rate period of 1, 3, 5, 7, or 10 years, then adjusts annually based on a market index. The current index for FHA ARMs is the Secured Overnight Financing Rate (SOFR). 

How FHA ARM Rates Work: Index, Margin, and Caps

Your FHA ARM rate is built from 3 components: the index (SOFR, set by market conditions), the margin (a fixed spread your lender adds to the index), and a cap structure that limits how much the rate can change at each adjustment and over the life of the loan.

ARM Type	Annual Adjustment Cap	Lifetime Cap
1-year, 3-year ARMs	1%	5%
5-year ARMs	1% or 2%	5% or 6%
7-year, 10-year ARMs	2%	6%]

FHA ARM Types at a Glance

The FHA offers 5 ARM products: the 1/1, 3/1, 5/1, 7/1, and 10/1. The first number is the initial fixed period in years; the second is the adjustment frequency (annually). The 5/1 is the most common. Borrowers refinancing into an FHA ARM with a longer time horizon may prefer the 7/1 or 10/1 for their extended fixed periods.

Can You Refinance an FHA ARM?

Yes. FHA ARM holders can refinance at any point: before the fixed period ends, at the first adjustment date, or after. Any of the 3 paths covered in this guide are available. One correction to most general ARM refinance guides: FHA Streamline Refinance does not require 20% equity. That requirement comes from conventional refinancing guidelines and does not apply here. The sections below explain what each path actually requires.

Why Homeowners Refinance an FHA ARM

Refinancing an FHA ARM is not always about escaping rate adjustments. Some borrowers want out of the ARM structure: they are after payment certainty and MIP elimination. Others are looking to get into an FHA ARM, trading a higher fixed rate for lower initial payments when they know the home is a short-term hold. Both are valid decisions. Which fits depends on your timeline, equity, and financial goals.

Reasons to Refinance Out of an FHA ARM

Best for: Borrowers approaching their first adjustment, those with 20%+ equity, or those prioritizing long-term payment certainty.

• Upcoming rate adjustment: Once the fixed period ends, the rate adjusts annually based on SOFR. Payments can rise significantly depending on where the index sits at adjustment time.
• Payment predictability: A fixed rate removes planning uncertainty for borrowers staying long-term.
• Eliminating MIP permanently: On FHA loans originated after June 2013 with a down payment below 10%, MIP runs for the life of the loan. A conventional refinance is the only exit.
• Changed plans: A new job, a family expansion, or another life change that turns a short-term stay into a long-term one shifts the math entirely in favor of a fixed rate.

Reasons to Refinance Into an FHA ARM

Best for: Borrowers with a short-term ownership horizon, or those who need lower initial monthly payments.

FHA ARM rates typically run 0.25% – 0.75% below a 30-year FHA fixed rate, which can translate into meaningful monthly savings for borrowers with a short-term ownership plan. If you sell before the fixed period ends, the risk of rate adjustment may never materialize. That said, if plans change and you stay past the fixed period, annual adjustments can push costs higher.

How to Refinance Into an FHA ARM

If you are considering refinancing into an FHA ARM, from a conventional loan, FHA fixed, or another loan type, you need a minimum 620 credit score, full underwriting (income verification and appraisal), and the loan must be on a primary residence. 

Borrowers entering FHA for the first time also take on MIP, so if you have 20%+ equity and currently carry no private mortgage insurance (PMI), a conventional ARM often pencils out better. 

Your Three Refinance Paths

FHA ARM holders have three main refinance options (while many other refinance products are available, these three are the most common). The right path depends on whether you want to stay in FHA, whether you have equity to exit, and whether you can complete full underwriting.

	FHA Streamline Refinance	FHA Simple Refinance	Conventional Rate-and-Term
Appraisal required	No (most cases)	Yes	Yes
Income/employment verification	No (non-credit qualifying)	Yes	Yes
Stays within FHA	Yes	Yes	No
MIP eliminated	No	No	Yes, if 20%+ equity
Cash out allowed	No	No	No (separate cash-out product)
Min. on-time payments	6	3	Lender overlay (typically 6 mo.)

Path 1: FHA Streamline Refinance

The FHA Streamline Refinance is the quickest, lowest-documentation path for FHA borrowers staying within FHA. No appraisal is required in most cases, and income verification is waived for non-credit-qualifying streamlines (meaning only basic FHA eligibility is checked, not your income or employment).

Path 2: FHA Simple Refinance

The FHA Simple Refinance is a rate-and-term refinance within FHA that does require an appraisal and income verification. Closing costs can be financed into the new loan balance, provided the appraised value supports the new amount. No cash out, and you must have a current FHA-insured loan. One practical note: if the streamline refinance net tangible benefit test cannot be met because rates have not moved enough, the simple refinance may still qualify using the appraisal-based rate calculation.

Path 3: Conventional Rate-and-Term Refinance

A conventional rate-and-term refinance exits the FHA entirely and permanently eliminates MIP (or similar PMI) if your equity is at or above 20%. Full underwriting applies: income verification, credit review, and appraisal. The minimum credit score at Refi.com for a rate-and-term refinance is 620. This is the right path when MIP elimination is the primary financial benefit, even if the rate change is modest.

FHA Streamline Refinance for ARM Holders

FHA Streamline eligibility is categorically different from conventional refinance requirements. If you have read general ARM refinance guides, some of what you encountered may not apply to you correctly.

Eligibility Requirements

To qualify for an FHA Streamline Refinance:

• You must have an existing FHA-insured mortgage (the ARM you are refinancing).
• A minimum of 6 on-time monthly payments on the current loan before applying.
• No 30-day late payments in the previous 12 months.
• The loan must be seasoned for at least 210 days from the original closing date.
• No appraisal is required in most cases, which significantly reduces both cost and processing time.
• No income or employment verification required for non-credit-qualifying streamlines.
• The 20% equity requirement cited in general ARM refinance guides applies only to conventional loans. It does not apply here.

The Net Tangible Benefit Test

Every FHA Streamline application must demonstrate a “net tangible benefit”: the HUD’s requirement that the refinance produces a meaningful improvement in the borrower’s position. The test varies by what you are refinancing into:

• ARM to fixed-rate: The new combined rate (interest rate plus annual MIP rate) must be at least 0.5 percentage points lower than the current combined rate.
• ARM to ARM: The new interest rate must be lower than the current interest rate.
• Fixed to fixed: The combined rate must drop by at least 0.5 percentage points.

Illustrative example: A borrower on a 5/1 FHA ARM with a current combined rate of 7.25% who refinances to a 30-year FHA fixed at 6.40% passes the ARM-to-fixed test, with a 0.85 percentage point reduction. A refinance from a 5/1 ARM to a new 5/1 ARM at the same combined rate would not pass the ARM-to-ARM test. (Figures are illustrative. Actual rates will vary.)

Some lenders and older resources cite a “2% rule” that requires a 2-point rate drop. The HUD’s current standard is the 0.5% combined-rate test described here.

ARM-to-Fixed vs. ARM-to-ARM Streamlines

FHA Streamline allows both paths. ARM-to-fixed is the more common outcome and provides long-term payment certainty. ARM-to-ARM can make sense when moving to a longer initial fixed period (for example, from a 5/1 to a 7/1 ARM) at a demonstrably lower rate. The net tangible benefit test applies in both cases, and neither path requires an appraisal for non-credit-qualifying streamlines.

When Refinancing to Conventional Makes More Sense

For many FHA ARM borrowers, the most compelling financial case for refinancing has nothing to do with the rate. It is MIP elimination.

The MIP Lifetime Problem

On FHA loans originated after June 2013 with an original down payment below 10%, MIP runs for the life of the loan. Refinancing to a conventional loan is the only way to eliminate this MIP. Current annual FHA MIP for loans with a loan-to-value (LTV) above 90% typically ranges from 0.55% to 0.85% of the loan balance. 

For example: on a $400,000 FHA loan at 0.55% annual MIP, that is approximately $2,200 per year ($183 per month). If you can qualify for a conventional loan at 20% equity, eliminating MIP saves that amount annually regardless of rate direction. (Figures are illustrative. Actual MIP costs depend on your balance and LTV.)

Do You Have Enough Equity?

A conventional rate-and-term refinance requires 20% equity (80% LTV) to close, with MIP replacing PMI. One important distinction: conventional PMI can be canceled by requesting removal once you reach 20% equity. A future refinance is not required to eliminate it.

If your equity is between 5% and 20%, a conventional refinance is possible, but PMI replaces MIP at a potentially similar monthly cost. At or above 20%, the switch from MIP to no MIP is worth modeling carefully. The minimum credit score for conventional or FHA refinance at Refi.com is 620. Use Refi.com’s refinance calculator to model the monthly payment difference.

Rates, Costs, and the Break-Even Point

FHA Streamline closing costs typically range from $1,500 to $4,000, depending on lender fees and prepaid items. This is generally lower than a full conventional refinance because no appraisal is required. (Illustrative range. Actual costs vary by lender and loan size.)

All FHA refinances include a 1.75% upfront mortgage insurance premium (UFMIP). For streamlines completed within 3 years of the original loan, HUD provides a partial UFMIP refund that offsets some of this cost.

To find your break-even point, divide your closing costs by your monthly savings to determine how many months it will take to recoup the refinance cost. For example, $2,500 in costs divided by $125 per month in savings equals a 20-month break-even. Use Refi.com’s break-even calculator to run the math on your specific numbers.

One note that belongs in any rate-lowering refinance: if the refinance extends your loan term, your monthly payment may drop while the total interest paid over the life of the loan increases. Factor that trade-off into your analysis.

When to Start Your FHA ARM Refinance

FHA Streamline processing typically takes 30 to 45 days from application to closing. If you are approaching a rate adjustment date, start the process at least 60 to 90 days before that date to avoid time pressure.

You can refinance before the fixed period ends. There is no requirement to wait for the first adjustment. Many borrowers refinance 6 to 12 months before the adjustment date to lock in a stable rate without the urgency of a refinance.

2 requirements must be satisfied before you apply: the 210-day seasoning period from your original closing date and a minimum of 6 on-time payments on the current loan.

One timing nuance: if a recent adjustment lowered your rate below current market levels, a streamline may not pass the net tangible benefit test at this time. In that case, waiting for the rate environment to shift before applying may make sense.

Is Refinancing Your FHA ARM Worth It?

Signs It Probably Makes Sense

• Your fixed period ends in 6 to 12 months, and you want payment certainty before the adjustment takes effect.
• You can pass the net tangible benefit test with meaningful room to spare, not just barely.
• You have at least 20% equity and want to permanently eliminate FHA MIP.
• Your plans have changed, and you now expect to stay in the home long-term.

Signs It Probably Does Not

• You plan to sell within 1 to 2 years, and closing costs may exceed total savings before the sale date.
• Rates have risen since you took the ARM, and no available path meets the net tangible benefit test.
• Your current ARM rate is below available fixed rates. Switching would trade a favorable position for certainty at extra cost.

The Bottom Line

FHA ARM refinancing is a three-path choice, not a single decision. The right path depends on your equity position, how long you plan to stay in the home, and whether MIP elimination is part of your plan. FHA Streamline is the lowest-barrier option for borrowers staying within FHA. Conventional refinancing is the only path to permanently removing MIP. Start with your equity estimate, compare the available paths, and model the break-even on the option that fits your situation.

Frequently Asked Questions (FAQs)