Mortgage Guide: Types, Rates & How to Get the Best Deal
Types of Mortgages
| Type | Rate Structure | Best For | Key Feature |
|---|---|---|---|
| 30-Year Fixed | Fixed for 30 years | Most buyers — lowest monthly payment | Predictable payments, highest total interest |
| 15-Year Fixed | Fixed for 15 years | Faster equity building, lower total cost | Higher monthly payment, ~0.5–0.75% lower rate |
| 5/1 ARM | Fixed 5 years, then adjusts annually | Buyers who plan to move/refinance within 5–7 years | Lower initial rate, rate risk after fixed period |
| 7/1 ARM | Fixed 7 years, then adjusts annually | Slightly longer timeline than 5/1 ARM | More initial stability than 5/1 |
| FHA Loan | Fixed or ARM | First-time buyers, lower credit scores (580+) | 3.5% down, requires mortgage insurance |
| VA Loan | Fixed or ARM | Veterans and active military | 0% down, no PMI, competitive rates |
| Jumbo Loan | Fixed or ARM | High-value properties above conforming limits | Stricter qualification, higher rates |
Fixed-Rate vs Adjustable-Rate Mortgage
| Feature | Fixed-Rate | Adjustable-Rate (ARM) |
|---|---|---|
| Interest Rate | Locked for entire term | Fixed initially, then adjusts with market |
| Monthly Payment | Never changes (principal + interest) | Can increase significantly after fixed period |
| Initial Rate | Higher than ARM initial rate | Lower — the “teaser rate” |
| Risk | None — rate is locked | Rate can increase substantially |
| Best When | Rates are low, you’re staying long-term | You’ll move or refinance before adjustment |
What You Need to Qualify
| Factor | Conventional Loan | FHA Loan | VA Loan |
|---|---|---|---|
| Credit Score | 620+ (740+ for best rates) | 580+ (500 with 10% down) | No minimum (most lenders want 620+) |
| Down Payment | 3–20% | 3.5% | 0% |
| Debt-to-Income Ratio | Under 43% (ideally under 36%) | Under 43% | Under 41% (flexible) |
| Employment | 2 years steady employment | 2 years steady employment | Stable income |
| Reserves | 2–6 months of payments | 1–2 months | Usually not required |
| PMI Required | Yes, if < 20% down | Yes (MIP for life of loan) | No |
What Determines Your Mortgage Rate
Your individual rate depends on several factors you can control:
Credit score. The single biggest factor. The difference between a 660 and 760 score can be 0.5–1.0% in rate — on a $400,000 mortgage, that’s $40,000–$80,000 in extra interest over 30 years. Improve your score before applying.
Down payment size. Putting 20%+ down gets you the best rates and eliminates PMI. Even going from 5% to 10% down can improve your rate and reduce PMI costs.
Loan term. 15-year mortgages have lower rates than 30-year because the lender’s risk is lower. The tradeoff is a higher monthly payment.
Debt-to-income ratio. Lower is better. Pay off credit cards and car loans before applying if possible. Every dollar of monthly debt reduces your borrowing power.
Loan type. Conforming loans (under the Fannie Mae/Freddie Mac limit) have better rates than jumbo loans. Government-backed loans (FHA, VA) have their own rate dynamics.
The Mortgage Process: Step by Step
| Step | What Happens | Timeline |
|---|---|---|
| 1. Pre-approval | Lender reviews your finances, gives a conditional commitment letter | 1–3 days |
| 2. House hunting | Shop with your pre-approval amount as a ceiling (not a target) | Varies |
| 3. Make an offer | Submit purchase offer with pre-approval letter | 1–3 days for response |
| 4. Loan application | Formal application with chosen lender, submit full documentation | 1 week |
| 5. Appraisal | Lender orders appraisal to confirm home value supports the loan | 1–2 weeks |
| 6. Underwriting | Lender verifies all documents and approves the loan | 2–4 weeks |
| 7. Closing | Sign final documents, pay closing costs (2–5% of loan), get keys | 1 day |
The True Cost of a Mortgage
| Loan Amount | Rate | Term | Monthly Payment (P&I) | Total Interest Paid |
|---|---|---|---|---|
| $300,000 | 6.5% | 30 years | $1,896 | $382,633 |
| $300,000 | 6.5% | 15 years | $2,613 | $170,388 |
| $400,000 | 6.5% | 30 years | $2,528 | $510,177 |
| $400,000 | 7.0% | 30 years | $2,661 | $558,036 |
| $400,000 | 6.0% | 30 years | $2,398 | $463,353 |
Notice: a 1% rate difference (6% vs 7%) on $400,000 costs nearly $95,000 more over 30 years. That’s why rate shopping and credit score optimization before applying are so critical.
PMI: Private Mortgage Insurance
If your down payment is less than 20%, most conventional lenders require PMI — an extra monthly fee that protects the lender (not you) if you default. PMI typically costs 0.5–1.5% of the loan amount annually. On a $400,000 loan, that’s $2,000–$6,000 per year ($167–$500/month).
PMI is removable once you reach 20% equity (through payments or appreciation). FHA loans have a similar cost called MIP (Mortgage Insurance Premium) that lasts the entire loan unless you put 10%+ down (then it drops off after 11 years). This is one reason many buyers refinance from FHA to conventional once they have enough equity.
Key Takeaways
- A 30-year fixed is the most popular mortgage — predictable payments, but you’ll pay more total interest than a 15-year.
- Your credit score is the single biggest factor in your rate — a 100-point difference can cost $40,000–$80,000 in extra interest over 30 years.
- Get quotes from 3–5 lenders — rate shopping within a 14–45 day window counts as a single credit inquiry.
- Put 20% down to avoid PMI ($2,000–$6,000/year). If you can’t, FHA loans accept 3.5% down and VA loans offer 0% down.
- Keep total housing costs under 28% of gross income to maintain financial flexibility for savings and investing.
Frequently Asked Questions
How much house can I afford?
The traditional guideline is 2.5–3× your gross annual income, with total housing costs under 28% of gross monthly income. On a $100,000 income, that suggests a home price of $250,000–$350,000 depending on your down payment, rate, and other debts. Use the debt-to-income ratio of 36% total (including all debts) as your ceiling.
Should I get a 15-year or 30-year mortgage?
A 15-year mortgage saves massive interest (often 50%+ less total interest) and builds equity faster, but the monthly payment is 40–50% higher. Choose 15-year if you can comfortably afford the higher payment without sacrificing retirement contributions or your emergency fund. Otherwise, take the 30-year and make extra principal payments when you can — this gives you flexibility.
How much do I need for a down payment?
Conventional loans require 3–5% minimum, FHA requires 3.5%, and VA loans require 0%. However, 20% down eliminates PMI and gets you the best rates. If you can’t reach 20%, putting down 10% is a good compromise — it reduces PMI costs and may get you a better rate than 3–5% down.
When should I refinance my mortgage?
The rule of thumb: refinance when you can reduce your rate by at least 0.75–1.0% and plan to stay in the home long enough to recoup closing costs (typically 2–5% of the loan). Divide closing costs by your monthly savings to find your break-even point. If you’ll stay past that point, refinancing makes sense. See our refinancing guide for details.
What are closing costs and how much should I expect?
Closing costs include appraisal fees, title insurance, attorney fees, origination fees, prepaid taxes and insurance, and recording fees. They typically total 2–5% of the loan amount. On a $400,000 mortgage, expect $8,000–$20,000. Some costs are negotiable, and some sellers will contribute to closing costs as part of the deal.