Bitcoin Supply Nears Historic 20M Threshold, Final Million Expected in 114 Years

Bitcoin’s circulating supply is set to reach 20 million coins in early March 2026. This milestone will be an important moment in the asset’s 17-year history of limited supply. The total number of bitcoins is capped at 21 million, a limit established by its creator, Satoshi Nakamoto. 

Data from blockchain explorers shows that only a small number of Bitcoins, roughly 1 million coins, are expected to be mined gradually over the next 114 years.  This is because the production of new bitcoins slows down over time due to events known as halvings.

Current Status and Milestone Approach

As of March 3, 2026, reliable sources, including the Clark Moody Bitcoin Dashboard, indicate that there are approximately 19,996,994.91 BTC in circulation at block height 939,111. Miners typically add new blocks every ten minutes, with the current reward set at 3.125 BTC per block following the halving in April 2024. 

Experts believe the 20 millionth Bitcoin could be mined soon, possibly within days or by mid-March. However, it depends on fluctuations in hashrate and network difficulty. This will push the apex coin to 95.22% of its total supply, leaving around 1,003,005 coins still to be mined. 

The journey began with the genesis block in January 2009, when rewards started at 50 BTC. But it subsequently halved every 210,000 blocks to keep inflation under control. In the early years, the supply grew rapidly, but now the daily production has dwindled to about 450 BTC.

Notably, the asset’s available supply is even less. Institutional investment is tightening the available supply, with spot ETFs and corporate treasuries holding significant amounts of Bitcoin.

Bitcoin’s Future Projections

The next Bitcoin halving is projected to take place around April 2028. During this event, the block reward will be reduced to 1.5625 BTC, continuing the trend of decreasing issuance. According to various models, 99% of the total Bitcoin supply will be mined by January 2035. 

The final full Bitcoin is expected to be mined around the year 2105, when the subsidies drop below one coin per block. All remaining satoshis, the smallest unit of Bitcoin, should be completely issued by February 2139 or early 2140, ultimately reaching the 21 million cap after over a century. 

After that point, miners will rely solely on transaction fees for their earnings, shifting Bitcoin’s economic incentives. This predictable cycle positions the number one coin as an appealing deflationary asset with a clear scarcity, especially when compared to fiat currencies, which can be easily expanded at will.

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