Multifamily Property Financing in California: Loans, Terms, and Portfolio Growth

You’ve found a four-unit apartment building in LA. Good bones, 85% occupancy, $12,000/month gross rent. The asking price is $1.2 million. Now comes the question that separates investors who scale from those who stay stuck: how do you finance it?

Financing a multifamily property (2-4 units in California, often called a “small multifamily” or “duplex-to-fourplex”) is different from financing a single-family home. Lenders look at it more like a small business than a residence. They care about income, debt service coverage, and reserves. They’re less forgiving of marginal credit or thin cash flow. But the leverage is also better: you can often find 70-80% LTV loans with fixed rates and 30-year amortization. That same building financed at 75% LTV with a 6.5% fixed rate gives you a mortgage of $900,000 and a monthly payment around $5,700. That 85% occupancy rent of $12,000 covers the mortgage, property tax, insurance, and maintenance while you build equity.

This guide covers what every California investor needs to know about multifamily financing: loan types and where they come from, underwriting criteria (the numbers lenders actually look at), rate and term environments, and how to scale from one property to a portfolio.

What Multifamily Financing Actually Means

Multifamily properties in California are typically defined as 2-4 units (sometimes called small multifamily) or 5+ units (commercial multifamily). The financing world treats them very differently.

A duplex (2 units) or fourplex (4 units) can often be financed with a residential mortgage, especially if you occupy one of the units. Lenders will use the other unit’s income to offset your personal income and reduce debt-to-income ratio. This is called “owner-occupancy” or “owner-user” financing. It’s usually the cheapest option: FHA insures these if you’re putting down 3.5%, conventional banks offer them at 80% LTV, and terms can be 30 years fixed at rates comparable to single-family homes.

A 5+ unit building crosses into commercial territory. Fannie Mae, Freddie Mac, and FHA won’t touch it. You need commercial bank loans, life insurance company portfolios, or specialized lenders. Rates are higher, terms shorter (often 5-10 years with amortization spreads), and underwriting is ruthless: they want 2+ years of operating history, strong debt service coverage ratio (typically 1.25x or higher), and proof of reserves (often 6-12 months of PITI).

Understanding which bucket your deal falls into shapes everything about how you finance it.

Loan Types: Where Multifamily Money Comes From

Owner-Occupied Duplex to Fourplex (FHA and Conventional)

If you’re buying a 2-4 unit building and living in one of the units, FHA loans are often the cheapest option. FHA insures the loan, which means the lender takes on less risk and can offer better terms: 3.5% down (96.5% LTV), 30-year fixed, rates often 0.5-1% lower than portfolio multifamily. The downside: FHA has caps on property values (varies by county; LA County FHA limits are around $1.15 million for a fourplex). If your target property is over that, FHA is out.

FHA also has owner-occupancy requirements: you must live in one unit and intend to do so for at least one year. After one year, you can move out and rent it. That’s fine if you’re buying a fourplex and occupying one unit while renting the other three.

If the property exceeds FHA limits or you don’t want to owner-occupy, conventional bank loans are the next option. Rates are 0.5-1% higher than FHA, but down payment can be as low as 15% (85% LTV) if you have strong credit (700+) and good income. Terms are 30 years fixed.

Non-Owner-Occupied Duplex to Fourplex (Bank Portfolio and Specialized Lenders)

If you’re buying a duplex or fourplex as an investment property (not living in it), conventional banks often have portfolio loan programs for these. “Portfolio” means the bank keeps the loan on its balance sheet rather than selling it to Fannie Mae or Freddie Mac. Because they hold the risk, they have more flexibility: they can offer 70-80% LTV, sometimes with variable rates or interest-only periods, and occasionally without requiring 2 years of tax returns if you have strong reserves and credit.

Portfolio loans are underwritten locally. A small bank in Pasadena that’s been financing LA multifamily for 20 years has different criteria than a mega-bank in New York. Local community banks are often the best source for small multifamily portfolio loans. They understand LA rents, they know the neighborhoods, and they’re more willing to finance properties that don’t fit Fannie Mae’s strict templates.

Fannie Mae/Freddie Mac Multifamily (5+ Units, Investment)

Once you hit 5+ units, conventional conforming financing (Fannie Mae or Freddie Mac multifamily products) becomes an option. These loans are standardized, sold into the secondary market, and widely available through mortgage bankers and brokers.

Fannie Mae multifamily loans typically require 70-80% LTV (20-30% down), debt service coverage ratio of 1.25x or higher, 2+ years of operating history, 6+ months of reserves, and rates tied to 10-year Treasury + a spread (currently around 2.5-3.5% spread, so all-in rates 6.5-7.5% on a 10-year fixed). Terms are usually 10 years fixed, with a 30-year amortization (meaning a balloon payment at year 10 or refinancing needed).

SBA loans (Small Business Administration, typically 7(a) program) can finance 5+ unit buildings with down payments as low as 10% and terms up to 25 years, but rates are often higher (7.5-8.5%) and approval takes longer (60-90 days vs. 30 days for conventional).

Portfolio Loans for Experienced Investors (5+ Units)

Once you own multiple properties or have a strong track record, life insurance companies, private banks, and CMBS (Commercial Mortgage-Backed Securities) lenders compete aggressively for your business. Portfolio loans from life companies (like Prudential or Massachusetts Financial) often offer fixed rates for 10+ years, lower rates than Fannie Mae (sometimes 0.25-0.5% cheaper because of their long-duration asset needs), and more flexibility on exit timing (you can refinance or sell without penalty).

These loans require a stronger application: 2+ properties owned, 2+ years of history, strong reserves (often 12+ months), and DSCR 1.25x+. But if you qualify, the terms are often best-in-market.

Underwriting Criteria: What Lenders Actually Look At

Every multifamily lender evaluates your deal using similar metrics. Understanding these shapes how you structure your offer and improve your chances of approval.

Loan-to-Value (LTV)

This is simple math: loan amount divided by property value. A $900,000 loan on a $1.2 million property is 75% LTV. Lower LTV means you’re putting more money down, which means less risk for the lender and usually better rates. Most lenders want 70-80% LTV for small multifamily, though some portfolio lenders will go to 85% if you have strong reserves.

The property value is usually the purchase price (if it’s an acquisition) or an appraisal (if you’re refinancing an existing property). Appraisals for rental properties use income capitalization as the primary method: gross rents minus expenses, divided by a cap rate (usually 4-6% depending on area and property condition). A property with $12,000 gross monthly rent might appraise at $2.4 million to $3.6 million depending on cap rate assumptions. That appraisal value then determines your LTV.

Debt Service Coverage Ratio (DSCR)

This is the most important metric for multifamily lending. DSCR is annual net operating income (NOI) divided by annual debt service (principal + interest on the loan). A property with $100,000 NOI and a mortgage with $80,000 annual debt service has 1.25x DSCR.

Most lenders require 1.20x to 1.25x minimum DSCR. This is the cushion between rent income and what you owe. If DSCR falls below 1.0, you’re paying the mortgage from your pocket (negative cash flow). Below 1.25x, the lender is nervous about vacancy or expense surprises wiping you out.

Calculating DSCR correctly is critical. NOI = Gross Scheduled Income (all rental units at 100% occupancy) minus operating expenses (property tax, insurance, HOA, maintenance, utilities you pay, vacancy allowance). Property tax and insurance are straightforward. Maintenance is estimated: typically 5-10% of gross rent. Vacancy allowance is usually 5% unless you have documented lower vacancy. Some lenders require a higher vacancy reserve (7-10%) in uncertain markets.

Reserves

Lenders want evidence that you can cover a few months of PITI (principal, interest, taxes, insurance) if rent dips or emergencies hit. Multifamily lenders typically require 6-12 months of PITI in liquid reserves. On a $900,000 mortgage at 6.5%, that’s roughly $5,850/month, so 6 months reserves = $35,100. This must be in a bank account, not tied up in other properties.

Credit and Income Documentation

For owner-occupied duplexes, credit score 660+ and documented income (W-2s, tax returns, or business financials) are standard. For non-owner-occupied or larger multifamily, personal credit still matters (lenders look for 680+), but the focus shifts to the property’s income and your track record.

If you own other rental properties, lenders want 2 years of tax returns showing income and expense from those properties. They want to see that you actually manage properties and can cash-flow them. If you’re a first-time investor buying your first multifamily, expect more scrutiny: lenders may require higher down payment (80% LTV instead of 75%), proof of liquid reserves, or co-signer with rental experience.

Rate and Term Environments: How to Read the Market

Multifamily financing rates move with Treasury yields and lender appetite. When you’re evaluating a deal, you need to know what financing is actually available.

Currently (2024-2025), rates for multifamily in California range from 5.75% to 7.5% depending on loan type, LTV, DSCR, and lender. Owner-occupied duplexes (FHA) are cheaper: 5.75-6.5%. Non-owner-occupied portfolio loans: 6.5-7.25%. Fannie Mae multifamily 10-year fixed: 6.75-7.5%. SBA: 7.5-8.5%.

Terms vary. Owner-occupied FHA: 30 years fixed. Portfolio multifamily: sometimes 15 or 20 years fixed, sometimes 5/5 ARM (5-year fixed, then adjustable). Fannie Mae multifamily: typically 10-year fixed with 30-year amortization (balloon at year 10). SBA: up to 25 years.

The balloon vs. fully-amortizing choice matters. A 10-year fixed with 30-year amortization means your payment is calculated as if you’d pay for 30 years, but after 10 years the remaining balance is due. If you paid $5,850/month on a $900,000 loan, after 10 years you’d owe roughly $750,000 and need to refinance or sell. This is fine if you plan to sell within 10 years or if the property’s value and cash flow have grown enough to refinance. If you plan to hold the property for 30 years without selling, a fully amortizing 30-year loan (from portfolio lenders or FHA) is better because you own it outright by year 30.

Scaling: From First Multifamily to Portfolio

Your first multifamily close should teach you a lot. You’ll learn your area’s rents, cap rates, lender behavior, and your own risk tolerance. After your first property, financing your second, third, and beyond becomes easier and cheaper.

After one successful multifamily hold (12+ months of history showing positive cash flow), lenders see you differently. You’re no longer a first-time investor; you’re an operator with proof. On your second property, you’ll get better rates (often 0.25-0.5% lower), higher LTV (up to 80% vs. 75%), and faster approval because the lender trusts your experience.

By your third or fourth property, portfolio lenders compete for your business. Life insurance companies and bank holding companies that invest in multifamily will actively solicit you, offering rates and terms that beat Fannie Mae, longer amortizations (up to 30 years), and flexibility on timing.

The path to a strong portfolio is: buy first multifamily with FHA (cheapest) or portfolio bank loan, hold for 12+ months, build track record, use that success to refinance at better rates or deploy equity into second property, repeat.

The Numbers: Underwriting Your Deal

Let’s work through a real example. You find a triplex in Long Beach: purchase price $900,000, current gross rent $8,400/month ($100,800 annualized). Expenses: property tax $3,000/year, insurance $1,500/year, vacancy 5% ($5,040), maintenance 7% ($7,056), utilities $2,400/year. Total expenses: $18,996. NOI = $100,800 – $18,996 = $81,804.

You’re looking at 75% LTV financing ($675,000 loan). At 6.5% fixed for 30 years, debt service is $4,291/month or $51,492/year. DSCR = $81,804 / $51,492 = 1.59x. That’s strong; lenders will approve this easily.

Now assume 5% down instead: 95% LTV ($855,000 loan). Debt service jumps to $5,426/month / $65,112/year. DSCR falls to 1.26x. Still acceptable, but tight. If occupancy drops 5% or maintenance surprises hit, you’re underwater.

The lesson: don’t max out your leverage just because a lender will approve it. DSCR above 1.25x is the floor; 1.35x-1.5x is comfortable; 1.5x+ is excellent. At 1.5x, a 5% occupancy drop still leaves you at 1.25x.

Tax Implications of Multifamily Debt

Mortgage interest on rental property is fully deductible. Property tax is fully deductible. On your $675,000 loan at 6.5%, year one interest is roughly $43,000 (first payments are mostly interest). That’s a write-off that could mean $11,000-15,000 in federal tax savings, depending on your bracket.

This deduction is part of your Schedule E (rental property tax form). Your CPA will calculate it, but you need to track it: ask your lender for a 1098 form in January that breaks out interest paid. That number goes directly to your tax return.

Exit Strategy: Refinancing vs. Selling

When your first multifamily hold reaches 2-3 years and the market has moved, you have two choices: refinance or sell.

Refinancing makes sense if rates have dropped or the property’s value has risen. If you bought at 6.5% and rates drop to 5.5%, you can refinance the remaining balance at the lower rate, saving hundreds per month. If the property’s value has risen 15% due to market appreciation, you might refinance at higher LTV, pull cash out tax-free, and deploy it into a second property. This is called a “cash-out refi.”

Selling makes sense if the property has appreciated significantly (especially in a hot market like LA County) and you’re close to hitting capital gains tax consequences. Long-term capital gains (owned >1 year) are taxed at 15-20% federal plus CA state tax (13.3% top rate). If a property you bought for $900,000 is now worth $1.2 million, selling generates $300,000 gain and roughly $100,000 in taxes. That’s painful. But you still have $200,000 in equity to deploy into a new property via a 1031 exchange (defer taxes by buying a “like-kind” property with the proceeds).

When to Bring in a Mortgage Broker

Your first multifamily, shop rates yourself: call a few banks, get prequalified, compare. You’ll learn the landscape and understand what lenders want.

After your first two properties, consider a mortgage broker. Brokers work with 30-50+ lenders and get wholesale rates (often 0.25-0.5% cheaper than retail). They also have programs for investors with multiple properties that you won’t find walking into a local bank. A good broker charges 0.5-1% origination fee, which is often absorbed in rate (meaning you don’t pay it out-of-pocket). For a $675,000 loan, that fee is $3,375-6,750, but you recover it in 1-2 years via lower rates.

Ask for referrals from other LA investors. Interview 2-3 brokers. Choose one that specializes in multifamily, not someone who does primarily single-family residential.

Conclusion

Multifamily financing in California is a learnable skill. The mechanics are standard: LTV, DSCR, reserves, credit. The players are familiar: FHA, portfolio banks, Fannie Mae, SBA. Your job is to understand your deal’s DSCR, keep reserves strong, and know which loan type fits your situation.

Start with owner-occupied FHA if you qualify (cheapest rates). Use that experience to qualify for better portfolio loans on your second property. Scale to larger properties and higher leverage as your track record grows. And always remember: low debt service coverage feels good when you’re buying, but it’s painful when you’re trying to maintain the property or survive a market downturn.

The most successful multifamily investors in California aren’t the ones who bought the most properties. They’re the ones who financed conservatively, kept strong DSCR, and had enough reserves to ride out market cycles without distress selling. Build that foundation now.

Ready to explore multifamily financing for your next deal? Schedule a call with the GT Investments team.