Interest-Only (I/O) Loan

Common Interest-Only Structures in Florida CRE

• Full-term I/O: entire loan term has no amortization — common in CMBS, life-company, and some agency multifamily up to 10-year terms. Balloon at maturity equals original principal
• Partial I/O: e.g., 3 years I/O then 27 years amortizing on a 30-year schedule — Fannie Mae and Freddie Mac multifamily standard offering at lower LTVs
• Bridge I/O: 12–36 months I/O on bridge debt — standard for value-add and lease-up scenarios across Florida multifamily and industrial
• Construction I/O: interest only on outstanding draws during construction period, typically 18–36 months
• Mini-perm with I/O: 2–3 year I/O at construction-to-perm conversion, then amortization through term

Cash Flow and DSCR Impact

Example: Florida multifamily property with $1,200,000 NOI, $20MM loan at 6.5%:

• Fully amortizing 30-yr: Annual debt service ≈ $1,517,000 → DSCR 0.79 (fails 1.25× test)
• Interest-only: Annual debt service = $1,300,000 → DSCR 0.92 (still fails)
• I/O at lower 5.5% rate: Annual debt service = $1,100,000 → DSCR 1.09 (closer)

I/O improves DSCR by ~17% vs. amortizing — often the difference between a deal sizing to 60% LTV and 70% LTV. For Florida value-add deals where NOI grows materially in years 2–3, partial I/O bridges the early-year DSCR gap until stabilization.

When Interest-Only Is Appropriate

• Value-add multifamily: in-place NOI insufficient for amortization but stabilized NOI clears — I/O bridges the gap
• Bridge-to-permanent: standard structure during lease-up or repositioning
• 1031 acquisition with debt replacement requirement: I/O preserves maximum cash for distributions while satisfying debt-replacement rules
• Sponsor-promote structures: I/O maximizes cash-on-cash during measurement period for promote calculations
• Florida insurance-stressed deals: I/O preserves cash flow buffer for ongoing insurance escalation

Risks and End-of-I/O Considerations

• Amortization shock: at end of partial I/O period, payment can jump 25%–40% as principal begins — DSCR must clear under amortizing payment, not just I/O payment
• Balloon refinance risk: full-term I/O = original principal owed at maturity → refinance at then-current rates and values
• Rate environment exposure: if rates rise materially during I/O period, refinance terms may be materially worse
• Florida-specific: insurance escalation during I/O period can compress stabilized NOI below the level needed to support amortizing payment at refinance
• Lender requirements: agency I/O typically requires lower LTV (5–10 percentage points less than amortizing) and stronger DSCR test

What is the typical interest-only period on Florida multifamily loans?

Most common structures: (1) Fannie Mae / Freddie Mac multifamily partial I/O — 1 to 10 years I/O within a 30-year amortization schedule, often 3–5 years at moderate LTV; (2) Bridge multifamily I/O — typically 12 to 36 months full-term I/O; (3) Bank multifamily — usually 12 to 24 months I/O during lease-up, then amortizing; (4) CMBS multifamily — full-term I/O common at lower LTV (60–65%). Agency I/O typically requires lower LTV and stronger DSCR than amortizing.

How does interest-only affect DSCR sizing?

I/O improves DSCR by approximately 15%–20% versus a 30-year amortizing payment at the same rate — often the difference between a deal sizing to 60% LTV and 70% LTV. Example: $20MM loan at 6.5% — amortizing annual debt service ≈ $1,517,000; interest-only annual debt service = $1,300,000. On a property with $1,300,000 NOI: DSCR is 0.86 amortizing, 1.00 interest-only. The 14% DSCR improvement is the difference between deal-killer and clearing the 1.25× test at a slightly stretched leverage.

What happens when the interest-only period ends?

At the end of a partial I/O period, the loan begins amortizing the remaining principal over the remaining term — payment typically jumps 25%–40%. Lenders size partial I/O loans by requiring DSCR to clear under the amortizing payment, not just the I/O payment — so the deal must underwrite to the post-I/O payment from day one. For full-term I/O loans, the original principal balance is owed at maturity as a balloon — refinanced at then-current rates and values.

Is interest-only appropriate for Florida value-add deals?

Yes — partial I/O is the standard structure for Florida value-add multifamily where in-place NOI is insufficient to support amortization but stabilized NOI clears. I/O bridges the DSCR gap through the value-add execution window (typically 24–36 months). Florida insurance escalation during the value-add period must be modeled into the post-I/O stabilized NOI to confirm the deal still pencils to a clean refinance once amortization begins.

Who can size an interest-only loan for my Florida CRE deal?

Michael R. Linton and Linton Global Solutions size I/O loans daily across the Florida CRE capital markets — agency multifamily (Fannie/Freddie), bank, CMBS, life-company, bridge, and construction-to-perm. With 39 years of Florida CRE transaction experience and active capital markets relationships in Orlando, Tampa, and the I-4 corridor, the team structures I/O periods that match the deal's value-creation timeline, stress the post-I/O amortizing payment under Florida-realistic operating projections, and protect against rate/insurance escalation risk. Use the live loan-quote generator at /loan-quote-generator or call (312) 612-1031.

Article Summary

Interest-only (I/O) commercial loans pay only accrued interest with no principal amortization during the I/O period. Common structures: full-term I/O (no amortization for entire term — CMBS, life-co, some agency at lower LTV), partial I/O (e.g., 3 years I/O within 30-year amortization schedule — Fannie/Freddie standard), bridge I/O (12–36 months — value-add/lease-up), construction I/O (interest on outstanding draws). I/O improves DSCR ~15%–20% versus amortizing — often the difference between 60% LTV and 70% LTV deal sizing. End-of-I/O considerations: amortization shock (25%–40% payment jump on partial I/O), balloon refinance risk (full-term I/O), Florida insurance escalation eroding stabilized NOI during I/O window. Appropriate for value-add, bridge-to-perm, 1031 acquisitions with debt replacement, and sponsor-promote structures.

Key Takeaways

• ✓I/O = pay only interest, no principal, during the I/O period.
• ✓Improves DSCR ~15–20% vs. amortizing — supports higher LTV.
• ✓Common FL structures: agency partial I/O, bridge full-term I/O.
• ✓End of I/O period = amortization shock or balloon refinance risk.
• ✓Always stress post-I/O payment under FL insurance/tax escalation.

About Michael R. Linton

Michael R. Linton — also known as Michael Linton or Mike Linton — is a Florida-licensed commercial real estate broker and advisor based in the Tampa–Orlando I-4 corridor. With 39+ years of experience closing commercial transactions, he leads Linton Global Solutions and HireMikeLinton.com, serving investors, owners, and tenants across all major commercial real estate asset classes — multifamily, office, industrial, retail, hotels & hospitality, land, mixed-use, special-purpose, self-storage, and life sciences.

Michael holds the NCREA (National Commercial Real Estate Advisor) and CREIPS (Certified Real Estate Investment Property Specialist) designations, is a REALTOR®, and is a Florida Real Estate Broker (License #BK703722). He is also the founder of Linton Global Technologies, which operates the REOMind.ai AI-powered REO disposition platform serving 500+ banks.

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Works Cited

1. Fannie Mae. "Multifamily Selling and Servicing Guide." Fannie Mae Multifamily, https://mfguide.fanniemae.com/. Accessed Jun 9, 2026.
2. Freddie Mac. "Multifamily Seller/Servicer Guide." Freddie Mac Multifamily, https://mf.freddiemac.com/. Accessed Jun 9, 2026.
3. Mortgage Bankers Association. "Commercial/Multifamily Origination Trends." MBA, https://www.mba.org/. Accessed Jun 9, 2026.
4. CRE Finance Council. "CMBS Market Reports." CREFC, https://www.crefc.org/. Accessed Jun 9, 2026.

Disclosure & Compliance

Disclosure: This article discusses proprietary technology developed by Linton Global Technologies. Michael R. Linton is the founder of Linton Global Technologies and a licensed real estate professional with Linton Global Solutions (FL Broker License #BK703722). This content is for informational purposes only and does not constitute investment, legal, or financial advice.

Compliance Statement: All CREDDS and REOMind.ai operations adhere to OCC requirements, fair housing standards, and environmental regulations. Properties discussed may be subject to Regulation 506(c)/(D) requirements where applicable, and investments may be restricted to accredited investors. Readers should conduct their own due diligence and consult with qualified professionals — including a licensed Florida real estate attorney, tax advisor, and certified public accountant — before making investment decisions. Past performance does not guarantee future results.