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What you'll learn ✅
- How a mortgage loan works — including collateral, interest, and amortization
- What makes up your monthly payment (PITI)
- The main types of mortgage loans and how they compare
- How to qualify and what lenders actually look at
A mortgage loan is a secured loan that lets you buy a home by borrowing money from a lender and repaying it — with interest — over a set term, typically 15 or 30 years. The home itself serves as collateral, meaning the lender can foreclose and sell the property if you stop making payments. Each monthly payment covers principal (reducing your balance), interest (the lender's fee for extending credit), and usually property taxes and homeowners insurance through an escrow account. Understanding how a mortgage works before you apply puts you in a stronger position to choose the right loan type and close with confidence.
Get pre-approved in as little as 3 minutes. No commitment required.
How does a mortgage loan work?
When you close on a home, the lender provides the capital — you receive the title, and the lender holds a lien against the property until the loan is fully repaid. From that point, your monthly payments gradually reduce the balance through a process called amortization.
Amortization means your payments are structured so the loan reaches zero at the end of the term, but the split between principal and interest shifts over time. In the early years, most of each payment goes toward interest because the balance is still large. As the balance shrinks, more of each payment chips away at principal. On a $400,000 loan at 7% over 30 years, for example, roughly $2,330 of your first monthly payment goes to interest and only about $260 reduces your balance. By year 25, that split has flipped considerably. Use Better's amortization calculator to see how this plays out for your specific loan amount and rate.
What makes up your monthly mortgage payment?
Most borrowers hear the term PITI — it stands for the four components of a standard mortgage payment:
- Principal — The portion that reduces your outstanding loan balance.
- Interest — The lender's fee for extending credit, charged on your remaining balance each month.
- Taxes — Property taxes collected monthly and held in an escrow account, then paid to the local government on your behalf annually.
- Insurance — Homeowners insurance is typically escrowed alongside taxes. If your down payment is below 20%, private mortgage insurance (PMI) is also added — it protects the lender, not you, and can be removed once your equity reaches 20%.
Types of mortgage loans
Not every loan works the same way. The right type depends on your credit profile, down payment, military status, and how long you plan to stay in the home.
| Loan type | Key features | Best for |
|---|---|---|
| Fixed-rate mortgage | Rate stays constant for the life of the loan | Buyers who want payment stability or plan to stay long-term |
| Adjustable-rate mortgage (ARM) | Introductory fixed rate, then adjusts annually based on a market index | Buyers who plan to sell or refinance before the adjustment period |
| Conventional loan | Not government-backed; conforming limit is $806,500 for most markets in 2026 | Buyers with strong credit and at least 3–5% down |
| FHA loan | Government-backed; 3.5% minimum down; requires mortgage insurance premium (MIP) | Buyers with lower credit scores or smaller down payments |
| VA loan | For eligible veterans, active-duty service members, and surviving spouses; no down payment; no PMI | Qualifying military borrowers |
| USDA loan | For rural and eligible suburban areas; income limits apply; no down payment required | Buyers in qualifying areas who meet income guidelines |
FHA loans use mortgage insurance premium (MIP), which differs from the PMI on conventional loans — it's worth understanding that distinction. Read more in our FHA vs. conventional loan comparison or dive deeper into what an FHA loan is if that path applies to you.
See what you qualify for in as little as 3 minutes. No commitment required.
How to qualify for a mortgage loan
Lenders evaluate four primary factors when you apply.
Credit score — Conventional loans typically require a score of 620 or higher. FHA loans allow 580+ with a 3.5% down payment. VA and USDA loans have more flexible standards, though individual lenders may set their own minimums. A higher score generally means a better rate.
Debt-to-income ratio (DTI) — DTI is your total monthly debt payments divided by your gross monthly income. Most conventional lenders prefer a DTI at or below 43%, with the housing payment alone ideally no more than 28% of gross monthly income. If your DTI is high, paying down existing debt before applying can meaningfully improve your options.
Income and employment — Two years of documented employment history is the standard benchmark. Self-employed borrowers face additional documentation requirements, typically including two years of tax returns and profit-and-loss statements.
Down payment and assets — Your down payment affects which loan types you're eligible for, whether PMI applies, and often your interest rate. A larger down payment reduces the lender's risk, and that typically shows up in your rate.
See what you qualify for in as little as 3 minutes. No commitment required.
The mortgage application process
Getting a mortgage follows a predictable sequence, even if the pace varies by lender.
It starts with pre-approval — the lender reviews your income, credit, and assets and issues a letter confirming the loan amount you're eligible for. This is different from pre-qualification; a pre-approval carries more weight with sellers because it involves actual verification. Read more about pre-qualified vs. pre-approved to understand the distinction.
Once you're under contract, the lender orders an appraisal to confirm the property's value supports the loan amount. Underwriting follows — the lender's team verifies all your financial documentation and issues either a conditional approval or a clear to close. Then comes closing: you sign the final documents, pay closing costs (typically 2–5% of the loan amount), and receive the keys.
Better's fully online process means you can move from pre-approval through close without in-person appointments — a real advantage in competitive markets where response time matters.
Fixed vs. adjustable rate — which is right for you?
A fixed-rate vs. adjustable-rate mortgage is one of the first decisions you'll face.
Fixed-rate loans keep the same interest rate for the life of the loan. Your principal and interest payment never changes, which makes budgeting straightforward. This works well for buyers who plan to stay in the home long-term or who are buying in a rising rate environment.
ARMs offer a lower introductory rate — often 1–2 percentage points below comparable fixed rates — for an initial fixed period. A 5/1 ARM, for example, is fixed for five years, then adjusts annually based on a market index. Caps limit how much the rate can move per adjustment period and over the life of the loan, but payment increases are still possible. ARMs tend to make more sense for buyers who are confident they'll sell or refinance before the adjustment period begins.
Neither option is universally better. Check current mortgage rates to see where fixed and adjustable rates sit today and how that affects your monthly payment. The mortgage calculator lets you model both scenarios side by side.
Frequently asked questions
What credit score do you need to get a mortgage?
The minimum depends on the loan type. Conventional loans generally require a 620 or higher. FHA loans allow scores as low as 580 with a 3.5% down payment, or as low as 500 with 10% down. VA and USDA loans don't set a universal minimum, though most lenders apply their own floor. A higher score will typically get you a better rate regardless of loan type.
How much of a down payment do you need for a mortgage?
It varies. Conventional loans can go as low as 3%, though anything below 20% adds PMI. FHA requires 3.5% with a qualifying credit score. VA and USDA loans allow 0% down for eligible borrowers. The right amount depends on your loan type, financial situation, and how much you want to reduce your monthly payment.
What is the difference between pre-qualification and pre-approval?
Pre-qualification is a preliminary estimate based on self-reported information. Pre-approval involves actual verification of your income, credit, and assets — and it carries far more weight in a competitive offer situation. Read more about how to get pre-approved for a mortgage.
What happens if you miss a mortgage payment?
Most lenders offer a grace period of 15 days before a late fee applies. After 30 days, the missed payment is typically reported to the credit bureaus, which can significantly impact your credit score. Prolonged nonpayment — generally 120+ days — can trigger foreclosure proceedings. If you're facing financial hardship, contact your lender early; most have loss mitigation options available.
Can you get a mortgage with student loan debt?
Yes. Lenders factor student loans into your DTI calculation along with other monthly obligations. As long as your DTI stays within qualifying limits and your credit score meets the threshold, student loan debt doesn't automatically disqualify you. Income-driven repayment plans can help keep your DTI manageable if your student loan payments are high.
The bottom line
A mortgage loan is a well-structured product once you understand the mechanics — how amortization works, what makes up your payment, and what lenders are actually evaluating. The more clearly you understand the basics before you apply, the better equipped you'll be to choose the right loan type, ask the right questions, and avoid surprises at closing.
Pre-approval is the natural first step. It confirms your budget, strengthens any offer you make, and gives you a realistic picture of what homeownership will cost month to month.
...in as little as 3 minutes — no credit impact