A conforming mortgage is one that, literally, conforms to the mortgage guidelines as set forth by Fannie Mae and Freddie Mac. 

Conforming mortgage guidelines are Fannie’s and Freddie’s eligibility standards; an underwriter’s series of check-boxes to determine whether a given loan should be approved.

Among the many traits of a conforming mortgage is “loan size”.

Each year, the government re-assesses its maximum allowable loan size based on “typical” housing costs nationwide. Loans that fall at, or below, this amount meet conforming mortgage guidelines. Loans in excess of this limit are known as “jumbo” loans.

Between 1980 and 2006, as home values increased, conforming loan limits did, too, rising from $93,750 to $417,000. Since 2006, however, despite falling home prices in many U.S. markets, the conforming loan limit has held steady.  This will remain true for 2012 as well. 

In 2012, for the 7th straight year, the national, single-family conforming mortgage loan limit will remain at $417,000.

The complete 2012 conforming loan limit breakdown, by property type :

• 1-unit properties : $417,000
• 2-unit properties : $533,850
• 3-unit properties : $645,300
• 4-unit properties : $801,950

However, there are some areas nationally that have earned ”loan limit exceptions” based on the local median sales prices. These areas are known as “high-cost” areas and loan limits within these regions range from $417,001 to a maximum of $625,500.

Some examples of high-cost areas include San Francisco (along with a most of California), New York City, and most of Hawaii and Alaska. Nationally, there are approximately 200 such “high-cost” areas.

Verify your local conforming loan limit and loan limits across California via the Fannie Mae website. A complete county-by-county list is published online.

After a brief return to lower, pre-2009 levels, FHA loan limits have been restored. As signed into law last Friday, maximum FHA loan limits are — once again — as high as $729,750.

The move creates additional mortgage financing possibilities in more than 650 U.S. counties, and promises to increase the FHA’s mortgage market share, which has grown from 6% in 2007 to roughly 30% today.

The change in FHA loan limits also marks the first time that FHA loan limits exceed those of conventional mortgage-backers Fannie Mae and Freddie Mac.

Conventional loans remain capped at a maximum of $625,500.

For home buyers in San Francisco and nationwide, FHA-insured mortgage offer several advantages over comparable conventional loans, the most commonly cited of which is that FHA-insured loans require a down payment of just 3.5 percent.

FHA-insured mortgages carry other advantages, too, however.

First, FHA home loans are not subject to loan-level pricing adjustments (LLPA). This means that, all things equal, buyers and would-be refinancers with credit scores below 740; or, who live in multi-unit homes; or, who have high loan-to-values are not subject to additional loan fees as a conventional mortgage applicant might.

Second, after 6 months of on-time payments, FHA-backed homeowners are eligible for the FHA Streamline Refinance. The FHA Streamline Refinance is among the simplest loan products for which to qualify with no appraisal required. Even if you’re “underwater” on your mortgage, you can still be streamline-eligible.

And, lastly, at least in today’s market, FHA mortgage rates are below those of the conventional market.

The downside of FHA financing, however, is that all FHA mortgages require mortgage insurance and FHA mortgage rates are often higher versus a comparable conventional loan. This means that, although its mortgage rate may be lower, the payment for an FHA home loan may be higher as compared to a Fannie Mae mortgage with similar credit traits.

FHA loans aren’t always optimal, but with higher FHA loan limits, expect the FHA’s market share to increase.

Check your local FHA loan limit at the HUD website.

For homeowners in high-cost areas nationwide, conforming and FHA loan limits have dropped by as much as 14 percent.

Effective October 1, 2011, the temporary mortgage loan limits that allowed for non-jumbo loan sizes of up to $729,750 are no longer.

$729,750 is above the “normal” loan limit of $417,000.

The elevated limits were put in place in 2008 as the economy and financial sector entered its crisis. At the time, there was little private money to serve buyers and would-be refinancers whose loan sizes exceeded Fannie Mae and Freddie Mac’s maximum $417,000 loan limits.

For most people whose loan sizes exceeded that threshold, mortgage financing was unavailable. There were no lenders to back the loan size.

This was of particular importance in places such as New York City, Los Angeles and Washington, D.C. where home prices routinely top $1 million. For people in these areas, unless they had a downpayment that could lower their respective loan sizes to $417,000 or lower, mortgages were mostly unavailable.

Congress recognized this and, as a result, gave Fannie Mae and Freddie Mac temportary authorization to purchase and securitize home loans of up to $729,750 in value, depending on where the subject property was located.

The program helped housing, leading Congress to pass more permanent, location-specific loan limits. Later that same year, Congress passed the Housing and Recovery Act of 2009 which, in part, made high-cost loan limit pricing permanent, albeit at $625,500.

The $729,750 temporary limits expired Friday, September 30, 2011. Today, the maximum allowable conforming loan size is $625,500.

If you live in a high-cost area, therefore, take note. Mortgage rates may be low, but the amount of loan for which you qualify may be less than you expect, and you may find yourself ineligible.

The complete list of high-cost areas is available online.

FHA home loans are federal assistance mortgages made by lenders, and backed by the government. The FHA doesn’t make loans to California homeowners — it insures loans made to homeowners by federally-qualified lenders.

By all accounts, FHA home loans are surging in popularity.

• 2006, FHA insured 3.3% of all mortgages made
• Q2 2009, FHA insured 19.2% of all mortgages made

A major reason for the increase can be tied to guidelines.

As compared to its conforming mortgage cousins Fannie Mae and Freddie Mac, FHA home loans have lower downpayment requirements and looser credit standards. The FHA allows downpayments of 3.5 percent for homes in Santa Rosa and Fannie Mae and Freddie Mac do not, as an example.

Another reason is that FHA home loans aren’t subject to credit score fees the way that conforming mortgages are. Through Fannie or Freddie, a home buyer with a 650 FICO and 20% down is subject to 3% in risk fees.  Via the FHA, the fee is zero, making FHA the better “deal”.

The FHA published its 2010 loan limits. There’s no change from 2009.

The base 2010 FHA loan limits are:

• 1-unit : $271,050
• 2-unit : $347,000
• 3-unit : $419,400
• 4-unit : $521,250

We say “base” because these loan limits don’t apply to all areas equally.  Higher-cost regions get higher loan limits, based on typical home values. Homes in Los Angeles County, for example, can be FHA-insured up to $729,750 in 2010, and there are special exceptions made for Alaska and Hawaii.

The official FHA announcement included a complete, county-by-county FHA loan limit list. The first spreadsheet shows each county at or above the $729,750 maximum; the second list is everyone else.

If your home’s county is on neither list, use the “base” numbers above.