Bitcoin issued 20.07 million BTC, or 95.57% of its nominal supply, as of 8 a.m. EDT on Aug. 15, 2026. The remaining 929,465 BTC will take more than a century to mine due to Bitcoin's halving mechanism, which cuts new issuance in half roughly every four years. Bitcoin's supply schedule was hard-coded at launch to push most issuance into early years, then progressively slow distribution as block rewards shrink from today's 3.125 BTC to fractions of a satoshi before reaching zero around 2140.
Bitcoin Halving Cuts Block Rewards Every 210,000 Blocks
Bitcoin miners currently receive 3.125 BTC for each block added to the blockchain. A block is a batch of transactions that has been verified and permanently recorded. Bitcoin targets one block about every ten minutes, putting current issuance near 450 BTC a day, or about 164,250 BTC a year if the network stays close to schedule.
The issuance schedule is hard-coded. Every 210,000 blocks, or roughly every four years, the reward paid to miners is cut in half. When Satoshi first launched Bitcoin, the reward initially began at 50 BTC per block, then dropped to 25, 12.5, 6.25, and today's 3.125 BTC. The next halving is expected around 2028. At that point, the reward falls to 1.5625 BTC per block, cutting expected daily issuance from about 450 BTC to around 225 BTC. The 2028 halving will be the last time miners get a full coin in the subsidy, as it will shrink to 0.78125 BTC by 2032.
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Block Subsidy Declines to Satoshi Fractions by 2132
Bitcoin passed the 95% threshold around Dec. 3, 2025, and is projected to reach 99% around February 2035. The final 1% would then take roughly another century. One bitcoin (BTC) is divisible into 100 million satoshis, and the block subsidy gets smaller until miners are paid in a handful of satoshis instead of whole coins.
According to halving statistics published by timechainstats.com, the reward is expected to be 74 satoshis in 2112, 37 in 2116, 18 in 2120, nine in 2124, four in 2128, and a mere two satoshis in 2132. After a final period that pays one satoshi per block, the subsidy reaches zero around 2140. Bitcoin cannot create fractions of a satoshi. Eventually, halvings produce rewards too small to pay, leaving the theoretical maximum at about 20,999,999.9769 BTC.
The halving is triggered by the number of blocks mined, not by a date on a calendar. Bitcoin aims for a ten-minute average, but blocks can arrive faster or slower before the network adjusts the mining difficulty.
Mining Revenue Depends on Subsidies as Fees Remain Below 1%
Miners are paid to keep Bitcoin running. They operate specialized computers that validate transactions and secure the network. Their revenue comes from two places: newly created BTC and transaction fees paid by users.
During the 24-hour period reflected in the network figures, mining revenue totaled about $28.7 million. Transaction fees made up a mere 0.69% of that amount. Fees can spike during periods of heavy activity, but low fees have been the norm lately, and it shows how heavily miners still depend on the subsidy.
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In 2028, miners will receive half as much new bitcoin for doing the same basic job. If the BTC price rises, fees increase, machines become more efficient, or energy gets cheaper, the industry can absorb the hit. If those offsets fail, weaker operators shut down first.
Hashrate Security Tied to Miner Economics Through 2140
Hashrate, the total computing power devoted to mining, is Bitcoin's first line of defense. Higher hashrate makes it more expensive to attack the network. This weekend's figure of about 900 exahashes per second (EH/s) shows how large the mining industry has become.
Mining is a business with thin margins and brutal swings. When revenue drops, less efficient machines go dark. Bitcoin's difficulty adjustment then reduces the amount of work needed to mine blocks, helping block production return toward its target pace.
At just under $63,000 per coin at 8 a.m. EDT on Saturday, bitcoin still trades on adoption, regulation, investor appetite, liquidity, and the wider economy as a whole. At the current rate, roughly 164,250 BTC are issued each year. After the next halving, that annual flow falls to about 82,125 BTC.
The current 929,465 BTC left to mine are not the same as the coins available to buy. Some already mined Bitcoin is likely gone forever because private keys were lost, devices failed or owners made irreversible mistakes. A wallet that has not moved in years could be lost, or it could belong to someone waiting.
FAQ
What is Bitcoin's current supply as of Aug. 15, 2026?
Bitcoin had issued 20.07 million BTC, or 95.57% of its nominal supply, as of 8 a.m. EDT on Aug. 15, 2026. The remaining 929,465 BTC will take more than a century to mine due to the halving mechanism that cuts block rewards roughly every four years.
How much do Bitcoin miners earn per block in 2026?
Bitcoin miners currently receive 3.125 BTC for each block added to the blockchain. At the current rate, this puts daily issuance near 450 BTC, or about 164,250 BTC a year. The next halving expected around 2028 will cut the reward to 1.5625 BTC per block.
What percentage of mining revenue comes from transaction fees?
During the 24-hour period reflected in network figures, mining revenue totaled about $28.7 million, with transaction fees making up a mere 0.69% of that amount. Miners still depend heavily on the block subsidy rather than fees for revenue.
