Payment Cap
Direct definition
A limit on how much an ARM's monthly payment can rise at each adjustment, regardless of the rate change.
Written by the Vabasso Mortgage Editorial Team · Reviewed against agency and federal sources · Read our editorial policy for how we research and review mortgage content
Plain-English explanation
Payment caps can prevent immediate payment shock but risk negative amortization if the capped payment doesn't cover accrued interest.
Why it matters
They soften payment increases but can quietly grow the loan balance.
Where you may see it
- ARM disclosure
- Adjustable-rate rider
- Rate change notice
A real-world example
An ARM with a 7.5% payment cap limits the annual increase in payment, potentially producing negative amortization.
Educational and illustrative only
A common misunderstanding
A payment cap doesn't mean interest stops accruing above the cap — if the payment can't cover the full interest owed, negative amortization can still occur.
Ask Vabasso AI
This glossary provides general educational information. Mortgage terminology, qualification methods, forms, timelines, fees, program rules, and legal meanings may vary by lender, investor, loan program, property, occupancy, state, and transaction. Definitions do not represent loan approval, legal advice, tax advice, or a commitment to lend.
- Author
- Vabasso Mortgage Editorial Team
- Reviewed by
- Vabasso Mortgage Licensed Advisory Team
- Last reviewed
- July 30, 2026