Conventional Loan Guide
Updated 2026-09-05 · By Michael Chen, CPA
Understand conventional loans: requirements, down payments, and comparison to government-backed loans. Learn if a conventional loan fits your needs.
A conventional loan is a mortgage that is not insured or guaranteed by the federal government. Instead, it follows guidelines set by government-sponsored enterprises such as Fannie Mae and Freddie Mac. Borrowers typically need a higher credit score and a larger down payment compared to government-backed loans, but conventional loans often offer more flexible terms and competitive interest rates for qualified borrowers. This guide explains the basics, requirements, and trade-offs to help you decide if a conventional loan is the right choice for your home purchase or refinance.
Key Requirements for a Conventional Loan
Lenders evaluate several factors when approving a conventional loan. While requirements vary by lender, general guidelines include a minimum credit score, a down payment based on the loan amount, and a debt-to-income ratio that shows you can manage the monthly payment. The loan term (typically 15 or 30 years) also affects the interest rate and monthly payment. Below are common thresholds:
- Credit score: Usually 620 or higher; scores above 740 often qualify for the best interest rates.
- Down payment: As low as 3% for first-time buyers, but 20% is standard to avoid private mortgage insurance (PMI).
- Debt-to-income (DTI) ratio: Typically capped at 43–50%, depending on the lender and other compensating factors.
- Loan limits: Set annually by the FHFA; loans above the limit are considered jumbo loans and have stricter requirements.
Conventional Loan vs. Government-Backed Loans
Conventional loans differ from FHA, VA, and USDA loans in several ways. The table below highlights key distinctions:
| Loan Type | Down Payment | Mortgage Insurance | Minimum Credit Score |
|---|---|---|---|
| Conventional | 3%–20% | PMI if down payment <20% | 620 |
| FHA | 3.5% | MIP for life of loan (if <10% down) | 580 |
| VA | 0% | No monthly insurance; funding fee | No official minimum; lender sets |
| USDA | 0% | Annual guarantee fee | Usually 640 |
Each option has its own trade-offs. For example, FHA loans require mortgage insurance premiums that can raise the total cost, while conventional loans let you cancel PMI once you reach 20% equity. VA loans offer no down payment but require a funding fee, and USDA loans are limited to eligible rural areas. A borrower with strong credit and a solid down payment often finds conventional loans more cost-effective over time.
How to Qualify for a Conventional Loan
Qualifying starts with understanding your financial profile. First, check your credit score and report for errors. Next, save for a down payment—the larger the down payment, the lower your monthly payment and the less you pay in interest over the loan term. Then, gather documentation such as tax returns, pay stubs, and bank statements. Compare lenders to find the best combination of interest rate, APR, and closing costs. Getting pre-approved gives you a clear picture of what you can afford and strengthens your offer when you find a home.
Pros and Cons of Conventional Loans
Conventional loans offer flexibility and potential savings, but they are not ideal for every borrower. On the plus side, they allow you to avoid FHA mortgage insurance if you put down 20%, and they have no upfront funding fee like VA loans. Interest rates are often lower for borrowers with excellent credit, and the loan terms are customizable. However, the stricter credit score and down payment requirements can be a barrier. Additionally, if you put down less than 20%, you will need to pay PMI, which increases your monthly payment. Always weigh these factors against your personal financial situation.
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