Pay only interest for 5-10 years. Build zero equity.
Sounds crazy? For some California buyers, it's the perfect strategy.
I'm Bill McCoy (CA DRE #01212512). I've placed dozens of interest-only loans. Here's when they work — and when they don't.
How Interest-Only Loans Work
Normal mortgage: Monthly payment includes principal + interest
Interest-only mortgage: First 5-10 years = interest only. Principal starts later.
Example: $600K loan at 6.5%
- Interest-only payment: $3,250/month
- Principal + interest payment: $3,792/month
- Savings: $542/month for first 10 years
After 10 years, your payment jumps to ~$4,400/month (P&I on remaining 20-year term).
Who Uses Interest-Only Loans
1. High-Income Earners with Variable Compensation
Example: Tech exec with $200K salary + $500K annual stock grants
Strategy: Use interest-only to minimize required payment. Invest the difference in stocks, business, etc.
2. Real Estate Investors
Goal: Maximize cash flow on rental properties.
Example:
- Rental income: $4,000/month
- Interest-only payment: $3,500/month
- Cash flow: $500/month
vs. full P&I payment:
- P&I payment: $4,100/month
- Cash flow: -$100/month
Interest-only makes the deal work.
3. Jumbo Borrowers in Expensive Markets
California median in coastal areas: $1M+
Interest-only lowers payment by 15-20%, making expensive homes more accessible.
4. Short-Term Ownership Plans
Scenario: Buying a home, planning to sell in 3-5 years.
Logic: Why pay down principal if you're selling soon? Minimize payment, maximize flexibility.
Broker's Tip: Interest-only loans work for sophisticated borrowers who understand the risks and have a plan. They're not for first-time buyers or anyone stretching to afford the payment.
Interest-Only Loan Structures
Most common: 10/1 ARM interest-only
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- 10 years: Interest-only
- Year 11-30: Principal + interest (amortized over 20 years)
- Rate: Adjustable (fixed for first 5-10 years, then adjusts annually)
Also available: 5/1, 7/1 interest-only ARMs
Rare: 30-year fixed interest-only (exists but expensive)
Who Offers Interest-Only Loans
Not widely available since 2008 financial crisis.
Lenders that offer them:
- Jumbo lenders (high-balance loans)
- Portfolio lenders (banks that hold the loan)
- Private banks (relationship-based lending)
Requirements:
- 20-30% down payment
- 700+ credit score
- Strong income and assets
- Low DTI (typically under 43%)
The Risks
1. Payment Shock
Year 10 → Year 11: Payment jumps 30-50%
If you can't afford the new payment, you're forced to sell or refinance.
2. No Equity Building
You're not paying down principal. If home values drop, you're underwater.
3. Rate Adjustments (If ARM)
After the fixed period, your rate adjusts annually based on market indices.
If rates rise 2-3%, your payment could double.
4. Refinance Risk
Plan: Refinance before payment increases.
Risk: What if you can't refi (bad credit, income loss, home value dropped)?
5. Negative Amortization (Rare)
Some interest-only loans allow you to pay less than the interest due.
Result: Your loan balance increases each month.
Danger: You owe more than you borrowed. Avoid these.
Interest-Only vs. Traditional Mortgage
| Feature | Interest-Only | Traditional P&I |
|---|---|---|
| Payment (first 10 yrs) | $3,250 | $3,792 |
| Equity after 10 yrs | $0 | ~$80K |
| Payment after 10 yrs | $4,400 | $3,792 (same) |
| Risk | High | Low |
| Best for | Investors, high earners | Most homeowners |
California-Specific Considerations
Expensive coastal markets: Interest-only helps buyers afford $1M-$3M homes.
Investment properties: Cash flow is king. Interest-only maximizes it.
Property tax: Remember, your payment is interest only — taxes and insurance are extra.
When Interest-Only Makes Sense
Use it if:
- You're buying an investment property and need cash flow
- You have significant assets but variable income
- You plan to sell within 5-10 years
- You're disciplined and investing the savings
Avoid if:
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- You're stretching to afford the payment
- You're a first-time buyer
- You don't understand the risks
- You need to build equity
Real-World Example
Sarah, tech VP in San Francisco:
- Buys $2M home
- 20% down ($400K)
- Loan: $1.6M at 6% interest-only (10-year ARM)
Interest-only payment: $8,000/month
If traditional P&I: $9,600/month
Savings: $1,600/month for 10 years
Sarah's plan:
- Invests savings in index funds
- Refinances in year 8 when stock grants vest
- Or sells home (tech exec likely to relocate)
Risk: If home depreciates or she loses her job, she's stuck with $1.6M loan and zero equity.
FAQ
Q: Can I get interest-only on FHA or VA?
A: No. Only available on conventional/jumbo loans.
Q: What happens after the interest-only period ends?
A: Payment increases to principal + interest (amortized over remaining term).
Q: Can I pay principal during the interest-only period?
A: Yes. Most loans allow voluntary principal payments.
Q: What if I can't afford the higher payment after 10 years?
A: Refinance or sell. If neither is possible, you're in trouble.
Q: Are interest-only loans available on investment properties?
A: Yes. Some DSCR lenders offer interest-only options.
Is Interest-Only Right for You?
Talk to an expert. These loans are powerful but risky.
Better Offers Inc | CA DRE #01212512