
What Is a Portfolio Mortgage?
Quick Answer
A portfolio loan is a type of mortgage a lender keeps instead of selling in the secondary market. These loans come with flexible underwriting criteria, but they also have higher borrowing costs compared to traditional mortgages.

Home loans aren't exactly known for their flexibility. To qualify for one, you have to meet strict eligibility requirements and provide extensive documentation to prove you can repay the debt you're taking on. This leaves little room for borrowers who have unique financial circumstances.
A portfolio mortgage is one option for borrowers who might not check all the boxes on a traditional mortgage application. Lenders get to set the loan terms and documentation requirements on portfolio loans, allowing for some flexibility. Here's what to know about portfolio mortgages, their pros and cons, and whether one might be right for you.
What Is a Portfolio Mortgage?
A portfolio mortgage, also known as a portfolio loan, is a type of mortgage a lender issues and keeps as part of its investment holdings. Portfolio mortgages are non-conforming loans, meaning they don't meet the criteria needed for resale to Fannie Mae and Freddie Mac, the government-sponsored entities that purchase most U.S. mortgages.
Because the lender doesn't sell portfolio loans to investors in the secondary market, it doesn't have to use the same eligibility criteria that traditional lenders use to qualify borrowers for conforming loans and government-backed mortgages.
This gives the lender freedom to set its own loan terms and potentially gives borrowers more options when they don't meet the eligibility criteria for a traditional loan.
Learn more: What Factors Do Mortgage Lenders Consider?
How Portfolio Mortgages Work
Because the lender keeps the loan in its portfolio, it has more flexibility in underwriting and setting terms. Some of the key features of a portfolio mortgage include:
- Held by the lender: The lender issues portfolio loans and keeps them in-house instead of selling them to investors in the secondary market.
- Flexible underwriting: The lender may offer more relaxed loan approval requirements, such as lower minimum credit scores and higher maximum debt-to-income ratios (DTIs).
- Customized loan terms: Borrowers may have more options with portfolio loans, like customized repayment terms, loan amounts and down payment options.
- Higher borrowing costs: Lenders take on more risk when they loosen credit and underwriting criteria, so they often increase interest rates and origination fees to compensate for the risk. They may also charge prepayment penalties.
- Faster approval: Lenders can often approve portfolio loans more quickly than traditional loans, which can be helpful if you're on a tight schedule.
Portfolio Mortgages vs. Conventional Mortgages
Like portfolio loans, conventional mortgages are loans not backed by the federal government. The key difference between a portfolio mortgage and a conventional mortgage is what happens to the loan after it closes. Lenders typically sell eligible conventional loans and government-backed mortgages in the secondary market, but they keep a portfolio mortgage in-house.
Here's a breakdown of the other major differences between the two:
Portfolio Mortgage | Conventional Mortgage | |
---|---|---|
Approval flexibility | Lenders can set their own underwriting criteria and may waive some documentation requirements | Borrowers must meet credit score and DTI requirements; they must also provide substantial documentation |
Loan terms | Lenders can set their own loan amounts and repayment terms | Mortgages come with maximum loan amounts and repayment terms |
Interest rates | Fixed and adjustable rates are available; rates are generally higher | Fixed and adjustable rates are available; rates are generally lower |
Down payment | Varies with each lender and loan | Varies with each lender and loan |
Pros and Cons of Portfolio Mortgages
Before opting for a portfolio mortgage, take some time to carefully consider the pros and cons.
Pros
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Faster approval process: Because portfolio mortgages are kept in-house, the lender may be able to streamline the process and close the loan more quickly.
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Less stringent requirements: Lenders can set their own eligibility criteria, so they may accept lower credit scores, higher DTI ratios and smaller down payments compared to conventional loans.
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No strict loan limits: Conventional conforming mortgages have strict loan limits that might not meet your needs. Lenders can set their own loan limits, making them a good fit when you need to borrow a sizable sum.
Cons
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Higher interest rates: Portfolio loans are riskier to the lender, so they often come with higher interest rates.
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Higher fees: These loans may also charge higher fees to help compensate the lender for the increased risk.
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More difficult to find: Not every mortgage lender offers portfolio loans. You may need to research your options and ask for recommendations from a real estate agent or mortgage broker.
Should You Get a Portfolio Mortgage?
Because portfolio loans come with relaxed eligibility criteria, they can be a good option if you don't meet the minimum credit score or maximum DTI limits required on conventional mortgages.
These loans can also be a good option if you want to borrow a large amount or you have an unusual circumstance, such as income that's difficult to document. Freelancers and small business owners often fall into this category.
But because these mortgages often come with higher borrowing costs—including higher interest rates, larger fees and prepayment penalties—they could turn off more budget-conscious borrowers.
Other features, such as interest-only payments, can also make these loans risky. So it's important to consider your unique financial situation before choosing a portfolio mortgage.
How to Get a Portfolio Mortgage
The requirements to get a portfolio mortgage vary because the lender can set its own loan terms. If you're looking to get one of these home loans, here are general steps to follow:
1. Find a Lender
Ask for portfolio lender recommendations from people in your network, such as your real estate agent or friends and coworkers. They may have worked with one in the past or have connections within the industry. You can also do an online search for portfolio lenders in your area. Smaller banks, credit unions and online lenders are more likely to offer these loans than large traditional banks.
Working with a mortgage broker can also be a good option, since they're trained to find a mortgage that fits your needs best.
Learn more: How to Shop for a Mortgage
2. Apply for Preapproval
Once you've found a portfolio lender you'd like to work with, ask for a preapproval letter. This type of document estimates your loan amount, interest rate and down payment.
Each lender's process may vary because these loans aren't standard. For example, the lender may run a credit check, verify your employment and review your financial statements.
Getting the preapproval can help you determine details like your eligibility, whether you'd like to work with the lender and the terms you may receive. Keep in mind that a preapproval can ding your credit score by a couple points temporarily due to the hard inquiry when checking your credit report.
Learn more: How Long Does a Mortgage Preapproval Letter Last?
3. Negotiate Terms
You can negotiate the details of your loan, such as your interest rate, down payment or closing costs. Having written preapprovals from a few lenders can help. If one lender offers a lower interest rate or has a lower down payment requirement, for example, you can send the letter to another lender and ask them to match or beat the offer.
Mention any strengths from your application, such as high income or good credit, and use it to offset a weaker area, such as a small down payment.
4. Complete Underwriting and Approval
The process of getting a portfolio loan is similar to applying for a traditional mortgage. You'll typically hand over paperwork to document your income, assets for the down payment and employment. Some lenders may waive certain document requirements based on the type of portfolio loan you're getting.
The lender may also order an appraisal to verify the property value.
Once the lender completes the underwriting process and approves your application, you'll sign the loan documents and move into your new home.
Alternatives to a Portfolio Mortgage
If getting a portfolio mortgage isn't an option, or you're nervous about the higher cost, you can consider the following alternatives:
- Conventional loans: Conventional mortgages are widely available and come with low down payment requirements and lower borrowing costs compared to portfolio loans.
- FHA loans: These mortgages are backed by the Federal Housing Administration. You may be able to qualify for an FHA loan with low credit scores, as long as you meet the down payment requirements.
- VA loans: A VA loan is a mortgage that's guaranteed by the U.S. Department of Veterans Affairs. VA loans have no specific loan limits and don't require a down payment. Lenders typically require a credit score of 620 or above, however.
The Bottom Line
A portfolio mortgage might be a good option if you can afford to buy a home but you don't meet some of the eligibility criteria that come with a traditional home loan. For instance, you might lack income documentation, have minimal credit history or lack the funds needed for a down payment. Portfolio loans might come with higher borrowing costs, though, so be sure to read your loan agreement if you decide to get one.
Whichever type of mortgage you're seeking, you'll want to have a clear idea where your credit stands well before the process begins. You can check your Experian credit report and FICO® Score☉ for free. You may be able to qualify for a conventional loan by taking steps to improve your credit.
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Learn moreAbout the author
Kim Porter began her career as a writer and an editor focusing on personal finance in 2010 and has since been published everywhere from Yahoo! Finance to U.S. News & World Report, Credit Karma, USA Today, Fortune and more.
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