Bitcoin Miners Face Higher AI Financing Costs

Bitcoin mining companies expanding into artificial intelligence and high-performance computing face different borrowing costs as lenders examine data-center projects, customer contracts and construction plans.

IREN secured a $3.65 billion GPU financing package in June at a blended interest rate of 6%. In August, it obtained a separate $2.4 billion financing arrangement at a fixed rate of 9%. The agreements cover different projects and are not directly comparable, but they show how rates can vary within the same company.

Large lenders have become more selective about data-center loans, according to BlocksBridge Consulting. Lending decisions increasingly depend on the customer, the contract terms and the plan for completing the facility.

Companies need capital for computing equipment, buildings and power infrastructure before AI data centers can begin operating. A customer contract does not remove the need for additional funding.

Financing costs can include equity-related payments. In a separate transaction involving Cipher Digital, Google agreed to backstop $1.4 billion in lease obligations in exchange for warrants representing 5.4% of Cipher’s equity, subject to adjustments. Exercising the warrants could dilute existing shareholders.

Bitcoin miners have taken on billions of dollars in debt to finance AI and high-performance computing projects. VanEck data cited by BlocksBridge showed that miners’ debt rose about 500% from the second quarter of 2024 to the height of the Bitcoin bull market in October.

Miners have continued to seek capital while shifting resources away from Bitcoin mining. AI projects require spending on equipment, construction and electricity capacity.

A June 2026 analysis by BlocksBridge, based on VanEck data, estimated that publicly traded Bitcoin miners needed about $50 billion to complete their planned AI infrastructure projects. IREN accounted for an estimated $21.1 billion of that amount. Riot Platforms and HIVE Digital faced estimated requirements of $7.2 billion and $4.6 billion, respectively.

Financing terms differ by project. Lenders assess whether a data center has a committed customer, a contract that supports repayment and a plan to complete the facility and connect it to sufficient power.