Published June 27, 2026 · 4 min read
You bought your home with a low teaser rate — maybe 2.5% or 3%. Then the introductory period ended. Your rate reset. Suddenly your monthly payment jumped 40%, 60%, even 100%. Now you can't afford it. This is ARM reset shock — and it's one of the most common triggers of foreclosure, especially for homeowners who bought between 2019-2022 with adjustable-rate mortgages.
An adjustable-rate mortgage starts with a fixed introductory rate (typically 2, 3, 5, 7, or 10 years). After the fixed period, the rate adjusts annually based on an index (like SOFR or the 1-year CMT) plus a margin (typically 2-3%). ARMs have adjustment caps — a per-adjustment cap (usually 2%), a lifetime cap (typically 5-6% above the start rate), and an initial adjustment cap. But even with caps, the payment increase can be devastating.
Example: $400,000 loan at 3% introductory rate. Monthly payment (P&I): $1,686. If the rate resets to 7% (index 5% + margin 2%), the payment jumps to $2,661 — a 58% increase. If the rate hits the lifetime cap of 8%, payment goes to $2,936 — a 74% increase.
If rates are favorable, refinance into a fixed-rate mortgage before the reset hits. This locks in a stable payment. Even if the current rate is higher than your introductory rate, avoiding the uncertainty and future resets may be worth it.
If you can't refinance (credit issues, insufficient equity), a loan modification may convert your ARM to a fixed rate or extend the term to reduce payments. Under Flex Modification (Fannie/Freddie), the servicer must evaluate a modification that targets a 20% payment reduction.
If the reset already happened and you're struggling, request forbearance to pause payments, then pursue a loan modification to permanently lower payments. The CFPB prohibits dual tracking while your modification is under review.
If the home is worth more than the mortgage, consider selling before the reset. If underwater, a short sale may be the best option — and avoids the credit damage of foreclosure.
ARM resets are predictable — unlike job loss or medical emergencies. If your ARM resets in the next 6-12 months, start planning NOW. The more time you have, the more options you'll have.