Bitcoin Miner Fee Revenue Share Drops to Near 10-Year Low as Hash Rate Declines 33%

Bitcoin (BTC) transaction fees now account for just 0.69% of total miner revenue, marking a level not seen in roughly a decade, as major mining operations increasingly pivot toward artificial intelligence (AI) and high-performance computing (HPC). The persistence of near-record-low fee revenue comes despite Bitcoin's long-term security model assuming that transaction fees will gradually replace the diminishing block subsidy as the primary incentive for miners to continue securing the network.

Onchain analytics platform Glassnode reports that fees as a proportion of miner revenue remain near decade lows, having fallen to as little as 0.52% in April. Glassnode co-founder Rafael Schultze-Kraft noted that fees have contributed less than 1% of miner revenue for nearly a year.

"Bitcoin was below $400 the last time fee share was this low," he said on X.

Miners Increasingly Dependent on Block Subsidy

With transaction fee revenue diminished, miners are growing more reliant on the fixed block subsidy — the amount of newly minted BTC awarded for each block mined, currently set at 3.125 BTC. That subsidy level was set by the April 2024 halving, which cut the per-block reward from 6.25 BTC. Halvings occur roughly every four years and will continue reducing the subsidy until all 21 million BTC are mined, intensifying the importance of fee revenue over time. Bitcoin's value has fallen nearly 50% since its October 2025 all-time high, reducing the US dollar value of the block subsidy and further compressing profit margins.

Miners also face mounting pressure from declining Bitcoin prices and rising electricity costs, which have squeezed profitability and pushed smaller operators out of the market.

According to onchain analytics resource Checkonchain, the estimated average cost of producing one Bitcoin stood at $78,254 as of Tuesday — almost 23% above the current spot price.

Hash Rate Down 33% From October 2025 Peak

Bitcoin's network hash rate, an estimated measure of computing power securing the network, has declined from its October 2025 peak of 1.3 zettahashes per second (ZH/s) to 861 exahashes per second (EH/s), representing a drop of 33%, according to Checkonchain data. A sustained decline in hash rate can reduce the network's security budget and, through Bitcoin's automatic difficulty adjustment mechanism, is designed to eventually lower mining difficulty to keep block production stable — though difficulty has been rising again in recent weeks.

Analysts: AI Pivot Is a "Concerning Development"

Independent analyst William Clemente acknowledged the downturn in analysis published over the weekend, while noting that miners would typically be incentivized to increase activity through automated difficulty readjustments. However, with difficulty now rising again, the shift of miners toward more lucrative AI computing has become conspicuous.

"There is no other way to slice it, hash rate has been in a decline. This has taken place as miner margins got squeezed post 2022 from more competition and higher energy prices, but more importantly the pivot of many into AI/HPC, which so far have shown to be prudent business decisions for the public names that have done it," Clemente wrote.

As Cointelegraph reported, Bitcoin miner CleanSpark recently refocused on AI, transitioning to data center operations after missing profit targets. Another miner, Keel Infrastructure, shut down all of its US mining operations after revenue fell 50% in the second quarter. The pivot leverages a structural overlap: Bitcoin mining facilities already control the large-scale power contracts, cooling infrastructure, and industrial real estate that AI data centers require, and demand for AI compute capacity has been outpacing supply.

"This dynamic has been reinforced as Bitcoin has underperformed AI related assets and the rate of change in demand for compute," Clemente added.

Charles Edwards, founder of hedge fund and AI platform Capriole Investments, directly linked the drop in hash rate to public miners' pivot toward AI.

"This is the least talked about, concerning Bitcoin development in 2026," he argued on X, noting that the trend has accelerated since April.