On November 4, 2026, TeraWulf disclosed that Google agreed to backstop certain obligations of Anthropic under the long-term leases at its Justified Data Campus in Hawesville, Kentucky, a project the company describes as carrying approximately $19 billion of contracted lease commitments. The structure matters more than the headline number. AI tenant credit support is the mechanism that lets a landlord finance a building for a tenant whose own balance sheet could not carry the debt, and it is becoming a standard feature of large AI leases rather than an exception. If you are underwriting an AI tenant, this deal is the clearest public template available. For broader context on the tooling and diligence behind these decisions, see our guide to AI tools for real estate investors.
Key Takeaways
- Google signed three credit support agreements, one each for buildings CB-1, CB-2 and CB-3, backstopping certain Anthropic obligations under TeraWulf's Justified leases.
- The support is a bridge, not a permanent guarantee. It terminates once Anthropic or a guaranteeing affiliate achieves and maintains certain investment grade ratings for at least three months.
- Neither the press release nor the Form 8-K discloses a dollar amount for Google's credit support, so the size of the exposure Google accepted is not public.
- On an Anthropic default, Google may pay rent currently due and assume the lease as tenant, or in certain circumstances pay a termination fee and become entitled to acquire an equity interest in the project entity.
- Third-party support prices the landlord's project debt against the guarantor's credit rather than the tenant's, which is the entire reason these buildings get financed.
What Google actually agreed to
According to TeraWulf's Form 8-K filed November 4, 2026, the company, Raylan Data LLC, Justified DataPower LLC, Anthropic PBC and Google LLC entered into three separate credit support agreements, one for each of the CB-1, CB-2 and CB-3 leased premises. Under them, Google agreed to backstop certain obligations of Anthropic under the corresponding Justified leases.
The word doing the work in that sentence is "certain." The filing does not enumerate every obligation covered, and the company's November 4 press release describes the arrangement only as contractual credit support for anticipated debt financing. Read it as credit support for the payment stream that lenders care about, not as a blanket guarantee of every tenant covenant in the lease.
Two further details frame the economics. First, the backstop under each agreement becomes effective as of the commencement date for the final data hall under the corresponding lease, so it switches on at delivery rather than at signing. Second, TeraWulf identifies Google LLC as rated AA+ by S&P Global Ratings and Aa2 by Moody's. That rating, not Anthropic's, is what lenders will underwrite against. Chief Executive Paul Prager put the purpose plainly in the release: "Cost of capital is fundamental to infrastructure development. Strong investment-grade credit support strengthens the project's financing profile."
The underwriting detail most coverage missed
The most instructive term in the filing is the exit. Google's backstop terminates when Anthropic, or an affiliate that has agreed to guarantee Anthropic's obligations under the applicable lease, achieves and maintains certain investment grade credit ratings for a period of at least three months.
That single clause reframes what the structure is. This is not a permanent credit substitution. It is a bridge across the gap between the day a lease is signed and the day the tenant can stand on its own rating, with a defined and testable condition for when the bridge comes down. For a landlord, that is a genuinely useful way to think about any AI tenant: the question is not whether the tenant is creditworthy today, but who carries the risk until it is, and what event releases them.
It also tells you what the counterparties expect. A termination trigger tied to investment grade ratings is only worth negotiating if both sides consider it reachable within the lease term. The structure prices a transition, not a permanent subsidy.
How this differs from tenant-posted collateral
CRE operators have now seen several distinct answers to the same problem, and they are not interchangeable. When Anthropic's registration statement revealed a large cash escrow against its lease obligations, the tenant was funding its own security with its own balance sheet, as we covered in Anthropic's S-1 lease escrow. A security deposit or escrow is the tenant's money, sized in advance, and it runs out.
Third-party credit support is structurally different. The money belongs to someone else, the obligation is contractual rather than funded up front, and its value tracks the guarantor's rating over time. That is closer to a traditional credit tenant lease, where financeability flows from the covenant rather than the building, a framework we walk through in our guide to credit tenant NNN deal scoring. The difference here is that the credit and the occupant are two different companies.
A third variant converts the lease itself into securitized debt, as in the lease-backed bond issued against Meta's commitment. Each structure answers a different question. Escrow protects the landlord against a short default. Securitization monetizes a strong covenant. Third-party support makes a weak covenant financeable in the first place.
What the landlord gives up
Credit support is not charity, and the consideration is where landlords should look hardest. The November 4 materials do not disclose a dollar amount for Google's commitment, nor do they disclose any warrant grant to Google. What the 8-K does disclose is a contingent equity right: if Google pays a termination fee following an Anthropic default, Google would be entitled to acquire an equity interest in Raylan, the project entity.
TeraWulf's own history shows where that road can lead. In its August 14, 2025 announcement of 10-year hosting agreements with Fluidstack, Google backstopped $1.8 billion of Fluidstack's lease obligations to support project-related debt financing and received warrants to acquire approximately 41 million shares of TeraWulf common stock, an approximately 8% pro forma equity ownership stake, against roughly $3.7 billion in contracted revenue over the initial terms. A later expansion added an incremental backstop and further warrants.
The pattern is the point. A guarantor that makes your project financeable is buying an option on your upside, whether through warrants at signing or equity rights on default. That is the same trade we examined when a tenant took warrants in its landlord's project in the SB Energy warrant structure. Cheaper debt is real, and so is the dilution. Price both.
How to underwrite a backstopped AI lease
If a prospective AI tenant arrives with third-party credit support, work through these questions before you treat the lease as investment grade:
- Who is the obligor, exactly? A named operating subsidiary and a rated parent are different credits. Confirm which entity signed and whether a parent guarantee exists.
- Which obligations are covered? Ask for the enumerated list. Rent is the common case; restoration, indemnities, holdover and expansion commitments frequently are not.
- When does coverage start? Support that begins at final delivery leaves the construction and lease-up window uncovered. That is exactly the period when a development lender is most exposed.
- What terminates it? A ratings-based release is reasonable. A release tied to a date, a milestone the tenant controls, or the guarantor's discretion is not the same protection.
- What is the remedy on default? Assumption of the lease by a rated guarantor is far better for a landlord than a termination fee, because it preserves the income stream rather than compensating for its loss.
- What did it cost in equity? Quantify warrants, equity rights and any change of control triggers, then compare that cost against the interest savings the support actually produces.
That last point deserves emphasis. Lower cost of capital on a multi-billion dollar project is worth a great deal, but so is a mid-teens equity stake. The comparison is arithmetic, and it belongs in the model before the letter of intent.
The construction risk sitting alongside the credit
The same announcement included a definitive engineering, procurement and construction agreement with Fluor covering three data center buildings, with defined delivery milestones, open-book cost reporting, procurement oversight and contractual performance protections. TeraWulf expects phased ready-for-service completions to begin in late 2027 and continue into the second quarter of 2028. Notably, pricing is still being established as engineering and procurement progress.
That combination is worth sitting with. The credit on the income side is now investment grade by substitution, while the cost on the construction side is not yet fixed. Open-book pricing is a reasonable approach on a project of this scale and complexity, but it means the development margin remains genuinely open. A landlord reading this deal as de-risked has only read half of it.
The leases themselves, originally announced on July 6, 2026, run 20 years across roughly 401 MW of critical IT load. Long duration is what makes the financing work, and it is also what makes the counterparty question unavoidable: nobody can forecast an AI company's credit two decades out, which is precisely why the backstop exists.
Why this matters beyond data centers
Most CRE owners will never sign a 401 MW lease. The mechanism still travels. Any landlord leasing to a fast-growing, unrated, well-funded AI company faces a version of the same problem: a tenant with enormous committed capital, no rating, and a covenant a lender will not price. The responses available are the ones on display here, namely tenant-funded escrow, a parent or third-party guarantee, equity participation in exchange for credit, or a shorter term with more frequent repricing.
Regulators and supervisors are already tracking where this risk lands. The Federal Reserve Bank of Kansas City has flagged AI-linked exposures inside CRE loans and CMBS, which we covered in our analysis of AI debt in CRE loans. Credit support structures do not make that exposure disappear. They move it to a different balance sheet, and whether that balance sheet is actually stronger is a question each landlord has to answer with documents rather than brand recognition.
If you are evaluating an AI tenant and want the lease structure, guarantor analysis and diligence workflow built out properly rather than improvised deal by deal, The AI Consulting Network works with CRE owners and operators on exactly this kind of underwriting problem.
Frequently Asked Questions
Q: Is Google guaranteeing all of Anthropic's rent at the Kentucky campus?
A: Not as disclosed. TeraWulf's Form 8-K says Google agreed to backstop certain obligations of Anthropic under the Justified leases, without enumerating every covered obligation, and no dollar amount for the credit support is disclosed. Treat it as support for the financed payment stream rather than a blanket guarantee.
Q: When does Google's credit support end?
A: It terminates when Anthropic, or an affiliate guaranteeing Anthropic's obligations under the applicable lease, achieves and maintains certain investment grade credit ratings for at least three months. It is structured as a bridge to the tenant's own rating, not a permanent substitution.
Q: Does third-party credit support make an AI lease equivalent to a credit tenant lease?
A: Only for the obligations actually covered, and only while the support remains in force. A conventional credit tenant lease derives its strength from the tenant's own covenant for the full term, whereas this structure borrows a third party's rating temporarily and can be released on a ratings test.
Q: What should a smaller landlord ask an unrated AI tenant for?
A: Start with the obligor entity and whether a rated parent will guarantee it. If no guarantee is available, a funded security deposit or escrow sized to your downside, a shorter initial term with repricing, or a tenant-funded improvement allowance are more realistic protections than relying on the tenant's funding announcements.