Dual Index Mortgage

DEFINITION of 'Dual Index Mortgage'

A type of mortgage where the interest rate paid on the outstanding balance is indexed to a interest rate benchmark plus a margin, and the actual total mortgage payments are linked to a benchmark of wages and salaries for workers in a given economy or region. The initial mortgage payment is set at a certain level and rises or falls according to the wage and salary index.

The rate at which payments increase or decrease can differ substantially from the rate at which the actual interest rate on the mortgage rises or falls. When the payment is less than a calculated interest-only payment, based on the interest rate of the mortgage, negative amortization is created.

BREAKING DOWN 'Dual Index Mortgage'

Dual index mortgages do not exist in the United States, but are popular in Mexico and other Latin American countries which historically have suffered from high levels of inflation. This type of mortgage allows borrowers to purchase homes when there is a large level of inflationary risk.

However, dual index mortgages are similar in principal to payment-option adjustable-rate mortgages (ARMs), which are popular in high cost areas of the United States. Like dual index mortgages, payment option ARMs offer the borrower initial monthly payments with the potential for negative amortization.

RELATED TERMS
  1. Benchmark

    A standard against which the performance of a security, mutual ...
  2. Payment Option ARM

    A monthly adjusting adjustable-rate mortgage (ARM) which allows ...
  3. Index

    A statistical measure of change in an economy or a securities ...
  4. Deferred Interest

    The amount of interest that is added to the principal balance ...
  5. Mortgage Index

    The benchmark interest rate an adjustable-rate mortgage's fully ...
  6. Negative Amortization

    An increase in the principal balance of a loan caused by making ...
Related Articles
  1. Insurance

    ARMed And Dangerous

    In a climate of rising interest rates, having an adjustable-rate mortgage can be risky.
  2. Economics

    How Interest Rates Affect The Housing Market

    Understand how rate changes can affect home prices, and learn how you can keep up.
  3. Options & Futures

    Make A Risk-Based Mortgage Decision

    Find out how to choose which mortgage style is right for you.
  4. Home & Auto

    Option ARMs: American Dream Or Mortgage Nightmare?

    Option adjustable rate mortgages could make or break your home-buying experience.
  5. Credit & Loans

    What is an Alt-A Mortgage?

    Called "liar loans" for their low documentation requirements, Alt-A mortgages were hot until the subprime crisis. Now Wall Street wants to bring them back.
  6. Credit & Loans

    New Rules May Make It Easier to Get a Mortgage

    Fannie Mae and Freddie Mac have come to terms with lenders on how to solve mortgage disputes. This could be good news for people with lower credit ratings.
  7. Retirement

    Best Mortgage Companies Friendly to Retirees

    If you’re no longer in the workforce and need a loan to buy a home, which companies are the most welcoming? Plus, good news about qualifying for a loan.
  8. Credit & Loans

    Don't Get Overcharged for Your Mortgage

    Don't pay more for a mortgage than necessary. Here’s a quick look at the different categories and how to be sure you're getting the best deal.
  9. Home & Auto

    Rent-To-Own Homes: How The Process Works

    A rent-to-own agreement can benefit homebuyers with bad credit or insufficient funds for a down payment. Here’s how one works.
  10. Home & Auto

    7 Must-Have Real Estate Contract Conditions

    Buying a home can bury you in paperwork. But it’s worth your time to make sure your contract contains these seven important conditions.
RELATED FAQS
  1. Do FHA loans require escrow accounts?

    Federal Housing Administration (FHA) loans require escrow accounts for property taxes, homeowners insurance and mortgage ... Read Full Answer >>
  2. Do FHA loans have prepayment penalties?

    Unlike subprime mortgages issued by some conventional commercial lenders, Federal Housing Administration (FHA) loans do not ... Read Full Answer >>
  3. Can FHA loans be refinanced?

    Federal Housing Administration (FHA) loans can be refinanced in several ways. According to the U.S. Department of Housing ... Read Full Answer >>
  4. Can FHA loans be used for investment property?

    Federal Housing Administration (FHA) loans were created to promote homeownership. These loans have lower down payment requirements ... Read Full Answer >>
  5. Do FHA loans have private mortgage insurance (PMI)?

    he When you make a down payment from 3 to 20% of the value of your home and take out a Federal Housing Administration (FHA) ... Read Full Answer >>
  6. How many FHA loans can I have?

    Generally, the Federal Housing Administration (FHA) does not insure more than one mortgage per borrower. This is to prevent ... Read Full Answer >>
Hot Definitions
  1. Harry Potter Stock Index

    A collection of stocks from companies related to the "Harry Potter" series franchise. Created by StockPickr, this index seeks ...
  2. Liquidation Margin

    Liquidation margin refers to the value of all of the equity positions in a margin account. If an investor or trader holds ...
  3. Black Swan

    An event or occurrence that deviates beyond what is normally expected of a situation and that would be extremely difficult ...
  4. Inverted Yield Curve

    An interest rate environment in which long-term debt instruments have a lower yield than short-term debt instruments of the ...
  5. Socially Responsible Investment - SRI

    An investment that is considered socially responsible because of the nature of the business the company conducts. Common ...
Trading Center