Conventional Loan Requirements: Qualification Guide

If you're getting ready to buy a home or refinance your current one, conventional loans are likely at the top of your list. They offer flexible terms, competitive interest rates, and the ability to avoid lifetime mortgage insurance once you hit the right equity threshold.

To qualify for a conventional loan, most lenders require a minimum 620 credit score, a debt-to-income ratio at or below 45%–45% (up to 50% with compensating factors), and a down payment as low as 3%. Loan limits for conforming loans in most U.S. counties are $806,500 for a single-unit property.

What Is a Conventional Loan?

A conventional loan is a home purchase loan or refinance loan that is not backed by a government agency such as the FHA, VA, or USDA. Conventional loans are funded and backed by private lenders and must conform to standards set by Fannie Mae and Freddie Mac.

Because conventional loans lack a government guarantee, lenders apply stricter borrower eligibility standards. That said, they also come with meaningful perks.

• Private mortgage insurance (PMI) is cancellable once you reach 20% equity..
• Loan limits are higher for many borrowers (up to $1,209,750 in high-cost areas).
• They can be used for primary residences, second homes, and investment properties.
• Competitive interest rates, especially for borrowers with strong credit.

Conventional Loan Credit Score Requirements

Your credit score is the single most influential factor in mortgage qualification. It signals to lenders how reliably you’ve managed debt in the past, and it directly affects your interest rate, PMI cost, and the overall terms of your loan.

Minimum Credit Score Requirements

The baseline conventional loan credit score requirement is 620. Fannie Mae and Freddie Mac set this as the floor for conforming loan eligibility. However, some lenders impose overlays and may require a score of 640 or higher, particularly for borrowers with additional risk factors such as a high loan-to-value ratio (LTV).

How Credit Score Affects Your Rate and PMI

Qualifying and getting a great deal are two different things. A 620 score gets you in the door. A 740+ score gets you the best rate tier.

• Borrowers with a 760+ credit score typically receive the lowest available interest rates and the lowest PMI premiums on conventional loans.
• Borrowers at 620–659 qualify but pay significantly higher rates and higher PMI costs, which can meaningfully increase monthly payments.
• Each 20-point credit score band typically shifts your interest rate by 0.125%–0.25%, which can translate to tens of thousands of dollars in interest over the life of the loan.

If your score sits between 620 and 680, spending 3–6 months improving it before applying can save you hundreds of dollars per month on your payment. Pay down revolving balances below 30% of your credit limit, dispute any errors on your credit report, and avoid opening new accounts.

Conventional Loan Down Payment Requirements

One of the biggest myths in homebuying is that you need 20% down to get a conventional loan. You don’t. Here’s the full picture of conventional loan down payment requirements:

Minimum Down Payment: 3%

Fannie Mae’s HomeReady program and Freddie Mac’s Home Possible program both allow for 3% down on owner-occupied property for first-time and qualifying repeat buyers. The standard conventional minimum for repeat buyers who don’t qualify for these programs is typically 5% down.

How Down Payment Affects Loan-to-Value Ratio (LTV) and PMI

Your loan-to-value ratio (LTV) is calculated by dividing your loan amount by the home’s appraised value. The lower your LTV, the lower the risk to your lender and the better your terms. Here’s how it plays out:

Unlike FHA loans, where the mortgage insurance premium (MIP) typically remains for the life of the loan, PMI on conventional loans is cancellable by law (under the Homeowners Protection Act) once your LTV reaches 80% through payments or home appreciation.

Down Payment for Second Homes and Investment Properties

For a second home, expect a minimum 10% down payment. For investment properties (non-owner-occupied), Fannie Mae and Freddie Mac generally require 15–25% down depending on the number of units. These requirements reflect the higher default risk on properties that are not owner-occupied.

Debt-to-Income Ratio (DTI) Requirements

Your debt-to-income ratio (DTI) measures how much of your gross monthly income goes toward debt payments. It is one of the core metrics lenders examine during mortgage underwriting. Lenders see if this borrower can realistically afford this mortgage on top of their existing obligations.

There are two components lenders consider:

1. Front-End DTI (Housing Expense Ratio): This measures your proposed monthly housing costs, like principal, interest, taxes, insurance, and HOA dues, as a percentage of gross monthly income. Most conventional lenders prefer this figure at or below 28%.
2. Back-End DTI: This includes all monthly debt obligations (housing costs plus credit cards, auto loans, student loans, etc.). The standard maximum is 45%, though Fannie Mae’s automated underwriting system (Desktop Underwriter) may approve up to 50% for borrowers with strong compensating factors such as significant cash reserves or a high credit score.

Income and Employment Requirements

Conventional loans don’t have a minimum income requirement in dollar terms. What lenders care about is income stability, consistency, and verifiability, because these predict whether you’ll be able to sustain mortgage payments over time.

Standard Employment Documentation

For W-2 employees, most lenders require:

• Two years of W-2 forms
• 30 days of recent pay stubs
• Verbal or written verification of current employment

For self-employed borrowers and business owners, conventional guidelines (per Fannie Mae and Freddie Mac) require two years of federal tax returns and a year-to-date profit and loss statement. Lenders use a two-year average of self-employment income, which means a strong recent year doesn’t automatically override a weaker prior year.

Acceptable Income Types

Conventional loans accommodate a wide range of income sources, provided they are documented, consistent, and expected to continue. Eligible income types include:

• Base salary and hourly wages
• Overtime, bonus, and commission income (typically requires a 2-year history)
• Self-employment and business income
• Rental income (typically at 75% of gross rental income after vacancies)
• Retirement and pension income
• Social Security disability income
• Alimony and child support (with documented receipt history)

Property Requirements and Eligible Loan Types

Qualifying for a conventional loan isn’t just about your personal financial profile; the property itself must also meet specific standards.

Eligible Property Types

• Primary residence (single-family, condo, townhome, 2-4 unit)
• Second homes (single-unit, owner-occupied for part of year)
• Investment/rental properties (1–4 units)
• Planned unit developments (PUDs) and warrantable condominiums

Conforming Loan Limits

For a conventional loan to be sold to Fannie Mae or Freddie Mac, it must fall within conforming loan limits set by the Federal Housing Finance Agency (FHFA).

• Standard limit (most U.S. counties): $806,500 for a single-unit property
• High-cost areas (e.g., parts of California, New York, Hawaii): up to $1,209,750

Loans above these limits are classified as jumbo loans, which have separate, often stricter qualification standards outside conventional conforming guidelines.

Appraisal Requirements

Every conventional loan requires a licensed appraisal to confirm that the property’s market value supports the loan amount. Unlike FHA appraisals, conventional appraisals do not require the home to meet FHA minimum property standards, though the property must still be in acceptable condition from a marketability standpoint.

Assets, Reserves, and Cash Requirements

Beyond income and credit, lenders verify that you have sufficient assets to cover your down payment, closing costs, and ideally a cash reserve after closing. Reserves are not always required for primary residence purchases, but they can strengthen your application, especially if your credit score or DTI is near the limit.

For investment properties, Fannie Mae typically requires 6 months of PITIA (principal, interest, taxes, insurance, and association dues) in reserves post-closing. This is a key distinction in borrower eligibility for investors.

Conventional Loan Requirements Checklist

Use this quick checklist to gauge your readiness before starting the mortgage application process:

• Credit score of 620 or higher (ideally 700+ for best rates)
• DTI ratio at or below 45% (50% with strong compensating factors)
• Down payment of at least 3% (primary residence, first-time buyer) or 5% (repeat buyer)
• Two years of employment history with documented income
• No recent major derogatory events (bankruptcy within 4 years, foreclosure within 7 years may disqualify)
• Loan amount within conforming limits for your county
• Property is appraised at or above the purchase price

Conclusion

A conventional loan isn’t reserved for buyers with perfect credit and a 20% down payment in the bank. With a minimum 620 credit score, as little as 3% down, a manageable debt-to-income ratio, and two years of documented income, a wide range of borrowers can qualify and can access one of the most flexible, cost-effective mortgage products available.

Get a clear picture of where you stand today. At Rize Mortgage, our licensed loan officers will review your full financial profile, walk you through your options, and help you find the right loan structure for your goals.

FAQs

1. What is the minimum credit score for a conventional loan?

The minimum conventional loan credit score requirement is 620 according to Fannie Mae and Freddie Mac guidelines. However, individual lenders may set their own minimums of 640 or higher. Keep in mind that while 620 qualifies you, a score of 740 or above typically earns you significantly better interest rates and lower PMI costs.

2. How much do I need for a down payment on a conventional loan?

Conventional loan down payment requirements start as low as 3% for eligible first-time buyers through Fannie Mae’s HomeReady or Freddie Mac’s Home Possible programs. Most repeat buyers need 5% down. For second homes, expect 10% minimum, and for investment properties, a 15–25% down payment is required.

3. What DTI do I need for a conventional loan?

The standard maximum debt-to-income ratio (DTI) for a conventional loan is 45% of gross monthly income. With strong compensating factors, such as a credit score above 720, significant cash reserves, or a low housing expense ratio, Fannie Mae’s automated underwriting system may approve DTIs up to 50%.

4. Can I get a conventional loan if I’m self-employed?

Yes. Self-employed borrowers can qualify for a conventional mortgage, but the documentation requirements are more involved than for W-2 employees. You’ll need two years of personal and business federal tax returns, a year-to-date profit and loss statement, and potentially business bank statements.

5. Is conventional loan PMI permanent?

No, and this is one of the biggest advantages of conventional loans over FHA loans. Under the Homeowners Protection Act of 1998, lenders must automatically cancel PMI when your loan balance reaches 78% of the original purchase price. You can also request cancellation once your loan-to-value ratio (LTV) reaches 80% through payments or a new appraisal demonstrating home value appreciation.