How to Screen NNN Tenants by Credit Rating — and Build a Portfolio Around the Strongest Names

Credit quality is the load-bearing wall of any net lease investment. Get the tenant right and the lease practically manages itself — rent arrives monthly, expenses pass through to the occupant, and your underwriting holds across economic cycles. Get it wrong and you own a single-purpose building with an uncertain income stream. This guide walks through exactly how to screen NNN tenants by credit rating: which rating tiers matter, which specific tenants sit at the top of the hierarchy in 2026, what the cap rate spread between tiers actually looks like in today’s market, and how to build a repeatable underwriting framework around the data.

Why NNN Tenant Credit Ratings Drive Asset Value More Than Almost Any Other Variable

In a triple net lease, the tenant’s financial strength is the investment thesis. Unlike multifamily or office, where income depends on occupancy across dozens of units or suites, a single-tenant NNN property delivers exactly one income stream — and that stream is only as reliable as the company standing behind the lease.
A single-tenant net lease property’s value is determined by a combination of factors including the tenant’s credit, the length of the lease, rental escalations over the term, and the real estate itself.
When credit is strong, the lease behaves like a bond. When it isn’t, the asset behaves like speculative real estate.

The net lease market remains bifurcated between premium credit assets with long remaining lease terms and shorter-term or non-rated assets. Premium credit assets continue to attract the broadest investor pools — including institutional buyers, 1031 exchange capital, and private investors — while shorter-term and non-rated assets face wider spreads and more selective buyer engagement.
That bifurcation is not a temporary condition. It reflects a structural preference that has intensified as investors have become more sophisticated about lease security and exit liquidity.

The practical consequence:
after two years of repricing, investors are now negotiating in a narrower band where modest shifts in risk, credit, and lease term are dictating value more than the Federal Reserve’s latest move.
Credit differentiation is where the real pricing action lives.

The NNN Tenant Credit Rating Tiers: A Practical Framework

S&P and Moody’s ratings translate directly into cap rate expectations, buyer pool depth, and exit liquidity. Understanding the tier structure lets you price assets accurately and set portfolio-level targets before you ever open an offering memorandum.

Tier 1: A-Rated and Above (S&P: A– to AAA)

This is the gold standard of NNN investing. Tenants with A-category ratings carry the lowest probability of default, attract the largest institutional capital pools, and trade at the tightest cap rates in the market. The most prominent example in single-tenant net lease is 7-Eleven, which
carries an investment-grade credit rating of S&P “A”
— one of the highest in the entire QSR and convenience sector. Properties leased to A-rated tenants are the first to trade in any market environment and the last to sit unsold, making them ideal anchors in a diversified NNN portfolio.

Tier 2: BBB-Rated (S&P: BBB– to BBB+)

The BBB band is where the majority of institutional-grade NNN transactions occur.
McDonald’s carries a BBB+ credit rating from S&P and a Baa1 rating from Moody’s
— investment-grade designations that underpin its position as one of the most actively traded NNN tenants in the country. CVS Health, Starbucks, Walmart, and Tractor Supply Company also populate this tier, offering the combination of recognizable brand strength, large store networks, and corporate-guaranteed lease obligations that institutional buyers demand. BBB-rated tenants offer meaningfully more yield than A-rated names while still sitting comfortably in investment-grade territory.

Tier 3: Non-Rated but Operationally Strong

Not every high-quality tenant carries a formal agency rating. Chick-fil-A is privately held and does not publish rated debt, yet
Chick-fil-A trades at cap rates of 4.20%–4.50%
— among the tightest in the entire net lease market — because investors price its operational strength, unit-level economics, and brand durability directly into valuations. When a tenant lacks a formal rating, investors lean on alternative credit proxies: same-store sales trends, store-count growth, debt-to-EBITDA ratios, and the geographic resilience of individual locations.

How NNN Tenant Credit Ratings Map to Real Cap Rate Data in 2026

Credit ratings are abstract until you attach pricing to them. The Q1 2026 market gives you precise data on exactly how much investors are paying — or discounting — based on tenant quality.
Single-tenant net lease cap rates decreased one basis point to 6.80% in Q1 2026, according to The Boulder Group’s First Quarter Net Lease Research Report.
But that headline average masks enormous dispersion across credit tiers.

Here is how cap rates stack up by tenant credit profile as of Q1 2026:

• Chick-fil-A (unrated, operationally elite):
  4.20%–4.50% on 15-year leases
  — the tightest pricing in QSR net lease.
• McDonald’s (S&P: BBB+):
  4.30%–4.60% on 15-year leases
  , reflecting deep investor demand for its corporate-guaranteed, long-term absolute NNN structure.
• Wawa (unrated, strong unit economics):
  4.90%–5.20%
  , commanding premium pricing in the convenience sector.
• Dollar General (investment-grade, BBB):
  6.75%–8.50%
  , reflecting a wider range driven by location quality and remaining lease term.
• Walgreens (below investment-grade on some measures):
  6.40%–9.00% depending on term
  , with the wider band reflecting heightened selectivity from buyers.

Lower cap rates — in the 5%–6% range — indicate safer investments with strong tenants, while higher cap rates in the 8%–10% range suggest higher risk.
The spread between a Chick-fil-A at 4.25% and a mid-tier tenant at 8.00%+ is not a small pricing nuance — it is a fundamental difference in the durability of the income stream you are buying.

For broader market context,
for the year ending Q1 2026, net-lease investment volume increased 8% year-over-year to $52.4 billion.
Capital is flowing into the sector, and the competition for top-credit assets is especially intense given that
single-tenant net lease property supply declined 9.8% quarter-over-quarter in Q1 2026.

If you want to see how these cap rate dynamics translate into live deal structures, take a look at some of the deals currently available on Triple Net Direct — filtered by tenant, geography, and lease term.

A Step-by-Step Process for Screening NNN Tenants by Credit Rating

Running a disciplined credit screen before you engage on any NNN opportunity requires a consistent process — not gut instinct about brand recognition. Follow these steps on every deal, in this order.

Step 1: Pull the Formal Agency Rating

Start with S&P, Moody’s, and Fitch.
When evaluating tenant creditworthiness, check the tenant’s financial stability via S&P or Moody’s ratings.
If all three agencies rate the tenant, use the median. If only one rates them, note that and adjust your required yield accordingly. Investment-grade means BBB– or better from S&P, and Baa3 or better from Moody’s. Anything below that line is speculative-grade regardless of how well-known the brand is.

Step 2: Verify the Guarantor Structure

The rating of the corporate parent means nothing if the lease is signed by a franchisee holding company. Confirm that the guarantee runs to the rated operating entity — McDonald’s Corporation, CVS Health Corporation, 7-Eleven Inc. — not a subsidiary or special purpose vehicle. A corporate-guaranteed lease from a BBB+ parent is structurally different from a franchisee lease on a property that happens to have golden arches on the building.

Step 3: Evaluate Unit-Level Coverage and Store Economics

Single-tenant net-leased investments can be tailored to an investor’s risk and reward expectations by choosing tenants with different credit profiles. Some tenants are rated by national credit rating agencies while others have only their previous financial performance to recommend them.
For both categories, unit-level rent coverage — how many times the individual location’s sales cover the rent obligation — is a critical underwriting input. A tenant with an investment-grade corporate rating but a location generating barely 1.5x rent coverage is a less secure investment than the rating alone implies. Target 3x or better as a baseline for long-duration assets.

Step 4: Assess Store-Count Trajectory

A growing tenant is a tenants that is expanding its own real estate footprint — which means it has operational incentive to honor existing leases and preserve access to capital markets.
McDonald’s has plans to expand by 2,000 new locations in 2024 and an additional 9,000 by 2027
, a trajectory that signals the kind of corporate momentum NNN investors should look for when evaluating long-term lease security. Tenants actively adding stores rarely walk away from existing locations.

Step 5: Stress-Test Lease Structure Against Credit Tier

The lease structure should complement the credit tier. An A-rated tenant on an absolute NNN ground lease with 20 years of term is the most defensible income asset in commercial real estate. A non-rated tenant on a modified gross lease with eight years remaining is a different underwriting exercise entirely.
Absolute NNN and bondable leases command lower cap rates — higher prices — due to their reduced landlord risk.
When credit is strong and lease structure is landlord-passive, you have built a durable income floor.

For a deeper look at how these analytical frameworks play out across sectors, read more NNN analysis on the Triple Net Direct blog.

How NNN Tenant Credit Ratings Shape Portfolio Construction Strategy

Knowing how to screen individual tenants is only half the work. The second half is assembling a portfolio where credit quality, sector diversification, and lease-term staggering work together to produce consistent, durable cash flow across market cycles.

While there are fewer risks related to investing in single-tenant net lease properties compared to more speculative real estate investments, tenants with non-investment-grade credit profiles offer higher levels of risk — but that risk typically provides higher returns as well.
The right portfolio construction depends on your mandate. Family offices and 1031 exchange buyers protecting accumulated gains tend to weight heavily toward Tier 1 and Tier 2 tenants. Yield-focused investors or those with longer hold horizons may deliberately blend in some higher-cap-rate, non-rated tenants to lift overall portfolio yield — provided each location’s real estate and coverage metrics are solid.

A practical portfolio construction framework for accredited investors in 2026:

• 60–70% Tier 1 and Tier 2 (investment-grade, A through BBB–): Long-lease anchors in essential retail, QSR, and convenience. These generate compressed but highly durable yields with the broadest exit market.
• 20–30% Tier 3 (operationally strong non-rated): Chick-fil-A, Wawa, regional grocery operators — tenants whose financial strength is demonstrable even without agency ratings.
• 0–15% yield-enhancing positions: Higher-cap-rate assets with strong location metrics and lease terms of 10+ years, underwritten on a location-by-location basis rather than on corporate rating alone.

The net lease market remains bifurcated between investment-grade credit assets with long lease terms — which continue to attract institutional buyers, 1031 exchange capital, and private investors — and shorter-term or non-rated assets, which face wider spreads and more selective buyer engagement.
Tilting your portfolio toward the first category means you are building for both income durability and exit optionality.

What the 2026 Market Environment Means for Credit-Focused NNN Buyers

The macro setup in 2026 makes credit-quality discipline more valuable, not less.
The expectation from market participants is for transaction volume to remain steady in 2026 as buyers and sellers continue to align on pricing. However, the path to further rate cuts has become less certain, as expectations have shifted from two reductions in 2026 to a single rate cut amid persistent inflation concerns.
In a rate environment where direction is uncertain, long-duration leases with investment-grade tenants function as portfolio stabilizers — their value is less sensitive to short-term rate volatility because the income stream is pre-contracted and reliable.

The average 10-year Treasury rate of 4.2% in Q1 was slightly lower than last year. The spread between the average net-lease cap rate remained at 257 basis points, reflecting stable pricing for net-lease assets.
For buyers assembling credit-quality NNN portfolios, that 257-basis-point spread over Treasuries represents a meaningful risk premium for an asset class that historically has demonstrated occupancy stability well above broader commercial real estate.

To explore specific investment-grade NNN assets currently available and connect with a specialist advisor who can walk you through credit analysis on specific deals, the resources are available when you are ready to move.

Frequently Asked Questions

What S&P credit rating qualifies a NNN tenant as investment-grade?

A tenant is considered investment-grade when S&P assigns a rating of BBB– or higher, or Moody’s assigns Baa3 or higher. Ratings below these thresholds — BB+ or lower from S&P — are speculative-grade, which typically results in wider cap rates, smaller buyer pools, and higher required due diligence scrutiny on lease terms and location metrics.

Which NNN tenants have the highest credit ratings in 2026?

7-Eleven carries one of the strongest agency ratings in single-tenant net lease at S&P “A.” McDonald’s is rated BBB+ by S&P and Baa1 by Moody’s. CVS Health, Starbucks, Walmart, and Tractor Supply Company all hold investment-grade ratings in the BBB category. Chick-fil-A and Wawa are unrated but trade at equivalent or tighter cap rates due to demonstrated operational strength.

How does a tenant’s credit rating affect my NNN cap rate?

Directly and materially. As of Q1 2026, top-tier tenants like McDonald’s and Chick-fil-A trade in the 4.20%–4.60% cap rate range on 15-year leases, while below-investment-grade or operationally challenged tenants can price at 7.50%–9.00% or wider. The spread between tiers reflects both default probability and exit liquidity — investment-grade assets attract far more buyers when you sell.

What if a NNN tenant I’m evaluating has no formal credit rating?

Focus on operational proxies: unit-level rent coverage ratios (target 3x or higher), same-store sales trends, total store count and growth trajectory, years in business, and the strength of the specific real estate location. Many of the strongest-pricing tenants in net lease — including Chick-fil-A and Wawa — carry no formal agency rating yet consistently trade at the market’s tightest cap rates.

Is a franchisee NNN lease as secure as a corporate-guaranteed lease?

No. A franchisee lease is backed only by the franchisee entity — not the corporate parent — and the creditworthiness of that entity varies significantly. The rating agencies assess corporate-level balance sheets. When a lease is franchisee-guaranteed, you must underwrite the franchisee’s financial statements independently, which requires different documentation and typically commands a higher cap rate to compensate for the additional risk.

How many NNN tenants does the current market profile for credit and cap rate data?

The Boulder Group’s Q1 2026 Net Lease Research Report profiles cap rate ranges and lease terms across 87 single-tenant net lease tenants spanning QSR, retail, healthcare, financial, and convenience sectors — giving investors a comprehensive, current benchmarking tool for credit and pricing comparison across the market.

Bottom Line

Credit rating is not a checkbox — it is the foundation of every durable NNN investment. In a 2026 market where supply has tightened and pricing competition for top-credit assets is intensifying, knowing how to screen tenants by rating tier, verify the guarantor structure, and stress-test lease terms against credit quality separates disciplined investors from those chasing yield without understanding what they are underwriting. Build around investment-grade anchors, stress-test every location, and let the data drive the decision — not the logo on the building. View available NNN deals on Triple Net Direct to see how top-credit tenants are pricing in today’s market.

Sources

• Q1 2026 Net Lease Research Report — The Boulder Group
• Net Lease FAQ: NNN, Cap Rates & 1031 Exchanges — The Boulder Group
• Q1 2026 U.S. Net Lease Investment Figures — CBRE
• Net Lease Cap Rates Hit a Holding Pattern as Investors Reprice Risk, Not Rates — GlobeSt.
• 7-Eleven NNN Listing — Gastonia, NC — JLL
• McDonald’s 20-Year NNN Lease Offering — Marcus & Millichap
• Net Lease Investment Services — Avison Young