How Many Bitcoins Are Left to Mine in 2026?

About 900,000 bitcoins remained to be mined in 2026. Bitcoin’s maximum supply is 21 million BTC, and estimates around 20.1 million already issued put roughly 95% of the total into the mined column. The exact figure changes as miners add blocks, so treat it as an estimate rather than a live, fixed count.

“Left to mine” means bitcoin that the network has not yet issued as block subsidies. It does not mean the number of coins currently available to buy. Some already-mined bitcoin may be lost, held for the long term, or otherwise not offered for sale; those coins still count as mined.

For a quick estimate, subtract the cumulative amount issued from 21 million. The remaining amount is small compared with the total, but issuance continues gradually because the block subsidy decreases in steps. It is not possible to mine all the remaining bitcoin at once, and there is no single date on which the supply suddenly reaches its cap.

Bitcoin’s protocol sets a maximum supply of 21 million BTC through its rules for block subsidies. Miners compete to add the next block to the blockchain. When a valid block is accepted, its miner can claim the subsidy allowed at that point in the schedule, along with any transaction fees included in the block.

The subsidy is the part that creates new bitcoin. Transaction fees are payments users attach to transactions; they move existing bitcoin from users to miners and do not increase the total supply. This is why miner revenue and new issuance are related but not the same thing.

The 21 million figure is a protocol limit under Bitcoin’s current rules, not a count of coins that are all circulating or spendable. It is also an intended maximum: because the subsidy is repeatedly cut and eventually becomes too small to represent in bitcoin’s smallest unit, the final issued amount is expected to be just under the cap. Changing the rules would require broad agreement among network participants, rather than a decision by an individual miner.

New bitcoin is issued according to block height, not a calendar. Every 210,000 blocks, the block subsidy is cut in half. Because Bitcoin targets an average of about 10 minutes between blocks, a 210,000-block interval takes roughly four years, but actual timing varies.

After the April 2024 halving, the subsidy became 3.125 BTC per block. It is scheduled to halve again at block 1,050,000, expected around 2028, and will continue falling at later halvings. The date is an estimate: blocks can arrive faster or slower than the target over shorter periods.

This schedule explains why a large share of the total supply was issued early, while the remaining portion will take many decades to distribute. Each halving reduces the pace of new supply; it does not remove bitcoin already mined or change the 21 million limit. If you see a countdown to the next halving, remember that it is estimating block production, not measuring a fixed date on the calendar.

The final bitcoin is commonly projected to be issued around 2140. That estimate follows from the current subsidy schedule and the expected pace of block production. It is not a guaranteed appointment: the schedule is tied to block heights, and the time taken to reach them can shift.

The subsidy will keep shrinking at each halving. Eventually, the amount available for a block becomes smaller than one satoshi, Bitcoin’s smallest unit, and no further subsidy can be paid under the current rules. Miners can still earn transaction fees, which are paid from bitcoin users’ existing balances.

This long timeline does not mean the remaining supply is evenly spread across the coming years. New issuance is higher now than it will be after future halvings, and each successive cut slows it further. When the subsidy ends, miners’ income would need to come from transaction fees and any other incentives permitted by the network’s rules. The exact future balance of those rewards is not known.

A live estimate depends on the latest confirmed block and the subsidy schedule in effect at that block height. To check one, look for a Bitcoin block explorer that reports the current block height and cumulative BTC issued. Compare the reported amount with the 21 million maximum, and note when the figure was updated.

Use this checklist before relying on a number:

1. Check the update time and current block height.
2. Confirm the figure refers to bitcoin issued, not exchange balances or coins considered available for trading.
3. Check whether it is an estimate rounded to the nearest thousand or a more precise protocol calculation.
4. Recalculate the remainder as 21 million minus the cumulative amount issued.

Different counters may show slightly different estimates because they update at different times, round figures differently, or apply different conventions to the final subsidy steps. A difference of a few hundred or thousand BTC does not necessarily signal a change to Bitcoin’s supply rules. For a general answer, “about 900,000 remained in 2026” is more useful than treating one changing counter as an exact, permanent figure.

Mining bitcoin and owning bitcoin are different activities. Mining requires specialized equipment, electricity, cooling, and often participation in a mining pool; the amount of bitcoin a miner earns is not guaranteed. Operating costs and competition matter, and the subsidy available to miners decreases over time.

You do not need to mine bitcoin to obtain it. If you are considering buying, focus on the separate risks of price volatility, custody, fees, and local rules rather than assuming that a shrinking amount left to mine guarantees a particular price. A supply limit does not guarantee demand or future returns.

A simple distinction helps:

Question	What it means
How much is left to mine?	Bitcoin not yet issued as subsidies
How much is circulating?	Issued bitcoin that may be in use, though estimates vary by definition
How much is for sale?	Offers available in markets at a given time

These figures answer different questions. A coin can be included in circulating-supply estimates while being permanently inaccessible, and a coin for sale is not necessarily newly mined.

The most common mistake is treating “left to mine” as the number of bitcoin that can still be bought. Mining measures unissued supply; market availability depends on what current holders choose to sell. The two numbers are not interchangeable.

Also avoid counting lost coins as unmined. If a person loses access to a wallet, the bitcoin remains recorded on the blockchain and was already part of the issued supply. Nobody knows exactly how much bitcoin is permanently inaccessible, so subtracting an assumed lost-coin total from the mined count will not give a reliable official figure.

Keep these distinctions in mind:

• Issued means created through the block subsidy.
• Unissued means still due under the subsidy schedule.
• Lost or inaccessible means issued but potentially unspendable.
• Available to trade means offered for sale, which can change at any time.

Finally, do not read a countdown to the last bitcoin as a promise of a specific date or price. Halvings and the supply cap describe Bitcoin’s issuance rules. They do not predict market demand, investment performance, or how much bitcoin miners will earn from transaction fees.