BITCOIN SUPPLY SURPASSES 20 MILLION BTC Seventeen years after the January 2009 genesis block, Bitcoin’s mined supply has now surpassed 20 million BTC, according to onchain data. The milestone occurred at block 939,999, with the current block subsidy at 3.125 BTC. The next Bitcoin halving is currently projected for April 11, 2028. With each halving reducing issuance, supply will continue slowing. The final 1 million bitcoin are expected to be mined over the next ~114 years, with the last satoshis issued around 2140, when Bitcoin reaches its 21 million cap.