Bitcoin Nears a New Milestone: 95% of BTC Is Now Mined

Bitcoin has passed a major supply milestone. The network crossed 20 million mined coins on March 9, which means more than 95% of the roughly 21 million BTC that will ever exist has already been issued. That leaves less than 1 million BTC still to be mined, even though the final stretch will take more than a century because Bitcoin’s issuance keeps slowing after each halving.

The milestone matters because it sharpens two ideas at once. First, Bitcoin’s scarcity story gets stronger as new supply becomes harder to find. Second, the network must keep proving that it can stay secure as miner rewards shrink over time. BTC was trading near $75,246 on March 16, showing that investors are still willing to pay up for that scarcity, even as long-term questions about mining economics stay in focus.

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Bitcoin’s supply schedule is fixed in code. New coins enter circulation through mining, and the reward paid to miners falls by half every 210,000 blocks, or about every four years. After the April 2024 halving, the block subsidy dropped to 3.125 BTC per block from 6.25 BTC. Bitcoin’s supply is capped by protocol design, and the reward keeps falling over time, which is why issuance slows more and more with each cycle.

That is why crossing 20 million mined coins does not mean Bitcoin is close to being done. Most of the remaining supply will come out over the next several years, but the final share will take much longer. In other words, most of the remaining BTC will be mined fairly slowly, and the very last part will come out extremely slowly.

The supply story also has a second layer. Some coins are believed to be lost forever, which means the usable supply may be lower than the headline number suggests. That adds to Bitcoin’s scarcity because some of the coins already mined may never return to the market.

For investors, slower issuance supports Bitcoin’s core bull case. Fewer new coins hitting the market each day means demand does not need to work as hard to absorb fresh supply. At the current reward rate, roughly 450 BTC are created each day across the network, far below earlier eras of Bitcoin’s history.

But the same design that makes Bitcoin scarce also creates a long-term challenge. Miners secure the network, and they are paid with a mix of block rewards and transaction fees. As block rewards keep shrinking, fees must eventually make up a larger share of miner income if the network is to maintain a strong security budget.

That is where the debate is growing. Miner revenues have steadied since the last halving, but fee income has remained uneven. That keeps pressure on the long-term question of whether Bitcoin can support strong miner incentives when new coin issuance becomes much smaller.

This does not point to an immediate crisis. Bitcoin’s hash rate has kept rising over time despite repeated halvings, and miners have adapted by upgrading hardware and chasing cheaper energy. Still, the 20 million milestone is a reminder that Bitcoin’s security model will face more scrutiny with every halving from here.

The opportunity is clear. Bitcoin’s supply is becoming more constrained, and that makes it easier for new demand from ETFs, companies, or long-term holders to move the market. Scarcity remains one of Bitcoin’s strongest investment traits.

There is also a risk. Fee income can be uneven. It tends to spike during periods of heavy network use, then cool off when activity fades. If fees stay too low for too long, miners may face more pressure on margins, especially after future halvings cut rewards again.

Another risk is concentration. Mining has grown more industrial, and that can raise concerns about pool power, hardware supply, and geographic concentration. Those are not new problems, but they matter more when miner economics get tighter.

The 20 million BTC milestone is more than a supply headline. It reinforces Bitcoin’s scarcity, but it also brings the network’s long-term security model back into view. Investors should watch two things from here: whether transaction fees become a more durable part of miner revenue, and whether hash rate remains healthy as rewards keep falling.

For now, the bigger message is simple. Bitcoin’s new supply is getting smaller, and that supports the asset’s scarcity case. But as Bitcoin matures, investors will need to track not just price and flows, but also the economics that keep the network secure.

Stay sharp,
The Crypto Compass