When Will the Last Bitcoin Be Mined? Halving Timeline to 2140

The last bitcoin is expected to be mined around 2140, when the 33rd halving cuts the block reward from 1 satoshi to zero.

As of block 975,224 on November 10, 2026, about 20.11 million bitcoins had been issued, or 95.8% of the final supply, leaving about 890,000 still to be mined.

New coins now arrive at about 450 BTC a day, and each halving, roughly every four years, cuts that pace in half.

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Key Takeaways:

• The last bitcoin is expected around 2140, when the block reward falls from 1 satoshi to zero.
• About 20.11 million BTC had been issued by block 975,224 on November 10, 2026, leaving about 890,000 to mine.
• The reward halves every 210,000 blocks, and today's 3.125 BTC reward drops to 1.5625 BTC around 2028.
• About 99% of all bitcoin will exist by around 2035, so the last 1% takes about 105 more years.
• Transaction fees made up about 0.57% of miner revenue in the 4,320 blocks up to November 10, 2026.

How Many Bitcoins Are Left to Mine?

About 889,900 bitcoins were left to mine as of block 975,224 on November 10, 2026, out of a final supply of 20,999,999.9769 BTC.

These figures follow from the block height, because the reward for every block is set by the protocol.

They count every reward the schedule allows up to that block, including the 50 BTC in the genesis block, which can never be spent.

Some coins are also lost for good because their owners lost their keys, so fewer than 21 million will ever be usable.

The final supply ends slightly below 21 million because rewards are counted in whole satoshis and rounded down at each halving.

How those small units work is explained in how many satoshis are in a bitcoin.

How Does Bitcoin's 21 Million Supply Cap Work?

Bitcoin's 21 million cap is the result of a block reward that started at 50 BTC and halves every 210,000 blocks until it reaches zero.

The rule sits in the block subsidy function of Bitcoin Core, the most widely used Bitcoin software.

A new block is added about every 10 minutes, so 210,000 blocks take about four years.

Every 2,016 blocks, or about two weeks, the network adjusts mining difficulty to hold that 10-minute pace as miners join or leave.

Miners collect the new coins as the reward for adding blocks, as explained in how Bitcoin mining works.

Changing the cap would need a change to the consensus rules that the computers running the network chose to adopt, and the cap has stayed the same since 2009.

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Bitcoin Halving Timeline: Every Reward Cut Until 2140

The block reward has been cut four times since 2009 and will be cut 29 more times, reaching zero around 2140 if blocks keep arriving every 10 minutes on average.

Past dates come from the block record, and future years assume an average of 10 minutes per block, so each could land a few months earlier or later.

The most recent halving, at block 840,000 on April 20, 2024, cut the reward from 6.25 BTC to 3.125 BTC.

The reward first drops below 0.006 BTC at the 14th halving, around 2064.

The last reward of a single satoshi starts at the 32nd halving, around 2136, and the 33rd halving, around 2140, brings it to zero.

What each halving means for miners and the market is covered in when the next Bitcoin halving is.

Why Will Bitcoin Mining Take Until 2140?

Bitcoin mining lasts until 2140 because each halving releases the remaining coins at half the previous speed, so the last few coins take the longest.

Half of all bitcoin had been issued by the first halving in 2012, and 93.75% by the fourth halving in 2024.

About 99% will exist by around 2035, and the final 1% is spread over the following 105 years.

After the 2028 halving, new supply falls to about 225 BTC a day, and after the 2032 halving to about 112.5 BTC a day.

The end date depends on block speed, so faster average blocks would bring 2140 forward and slower ones would push it back.

What Happens When All Bitcoins Are Mined?

When the last bitcoin is mined, miners keep securing the network, but they are paid only in transaction fees instead of new coins.

Users already attach a fee to each transaction, and when many people want to send at once, higher-fee transactions tend to be confirmed first.

Fees are a small part of miner pay today: in the 4,320 blocks up to November 10, 2026, miners earned 77.15 BTC in fees out of 13,577.15 BTC in total, or about 0.57%, according to mempool.space block data.

That share has to grow over the next century, through more transactions, higher fees, a higher Bitcoin price, or a mix of the three.

Payment layers such as the Lightning Network move small payments off the main chain and settle them on it later.

Whether fees alone will pay enough to keep mining secure is an open question, and the schedule leaves more than a century to find out.

What it takes to earn a coin today is worked out in how long it takes to mine 1 bitcoin.

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Frequently Asked Questions

When will the last bitcoin be mined?

The last bitcoin is expected around 2140, when the 33rd halving cuts the block reward to zero, assuming blocks keep arriving every 10 minutes on average.

How much bitcoin is left to mine?

About 889,900 BTC, or 4.24% of the final supply, was left to mine as of block 975,224 on November 10, 2026.

How many bitcoins are mined each day?

About 450 BTC are mined each day, based on the 3.125 BTC block reward and roughly 144 blocks a day.

When is the next Bitcoin halving?

The fifth halving is due at block 1,050,000, expected around 2028, and will cut the block reward to 1.5625 BTC.

Will Bitcoin mining stop in 2140?

No, miners will keep confirming transactions after 2140 and will earn transaction fees instead of new coins.

Can the 21 million limit be changed?

Changing it would need new consensus rules adopted by the computers that run the network, and the cap has not changed since 2009.

Why is the final supply slightly less than 21 million?

Rewards are counted in whole satoshis and rounded down at each halving, so the total ends at about 20,999,999.9769 BTC.

Conclusion

The last bitcoin is expected around 2140, but about 95.8% of the supply had already been issued by November 2026.

Each halving cuts the flow of new coins in half, which is why the final 1% takes more than a century.

After that, transaction fees alone will have to pay the miners who keep Bitcoin running.

Related Articles

• When Is the Next Bitcoin Halving? Everything Explained
• How Long Does It Take to Mine 1 Bitcoin in 2026? Time and Cost by Miner
• What is Bitcoin Mining? How to Mine Bitcoin for Beginners
• How Many Satoshis Are in a Bitcoin? Beginner's Guide
• What is Bitcoin (BTC)? The Ultimate BTC Investment Guide for Beginners

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