When Is the Next Bitcoin Halving?

Bitcoin's halving schedule explained — how the block-reward cut works, every past halving date, and how to calculate the next one from block height.

Updated August 2026 · Reviewed by the PipeFlare team

A Bitcoin halving cuts the block reward paid to miners in half, and happens roughly every four years, every 210,000 blocks

Halvings are a fixed, code-enforced event built into Bitcoin's supply schedule — understanding the mechanism matters more than trying to time it

About next bitcoin halving date

A Bitcoin halving is a fixed, code-enforced event that cuts the reward miners earn for confirming a new block exactly in half. It happens automatically every 210,000 blocks — roughly every four years, given Bitcoin's average 10-minute block time — and it's the mechanism that caps Bitcoin's total supply at 21 million coins. This page covers the mechanism itself and the full historical schedule; it does not predict what a halving will do to price, since that's outside what an educational guide can responsibly answer.

How it actually works

Bitcoin's protocol pays miners a fixed number of new coins — the block subsidy — every time they successfully mine a block, on top of the transaction fees in that block. Satoshi Nakamoto's original code set that subsidy to start at 50 BTC and cut it in half every 210,000 blocks, a rule enforced by every node on the network, not by any company or committee. Because Bitcoin targets a new block roughly every 10 minutes, 210,000 blocks works out to approximately four years, though the actual gap varies with how fast blocks are actually found. The halving continues until the subsidy rounds down to zero, which is projected to happen around the year 2140 — at that point the 21 million coin supply cap is fully reached, and miners are compensated by transaction fees alone.

Start here

1Understand the cadence: halvings occur every 210,000 blocks, not on a fixed calendar date — the actual date shifts by weeks depending on how fast blocks were mined in the years before it.
2Check a live block-height counter (mempool.space or a mining-pool dashboard) for the current block height, since that's the only way to get an accurate, up-to-the-minute estimate — this page's numbers are a fixed historical record, not a live feed.
3Know the reward math: the block subsidy halves each time — 50 → 25 → 12.5 → 6.25 → 3.125 BTC and so on — while transaction fees paid by users are unaffected by the halving.
4Treat halving-driven price commentary skeptically — this page describes the supply mechanism only, and no educational resource can responsibly predict how the market will react to a scheduled, widely-anticipated event.

Strengths

The schedule is fully deterministic and enforced by every node running the software — there is no central authority that could delay, skip, or change a halving.
It caps Bitcoin's total supply at a fixed, known number (21 million coins), a design choice unique among the earliest major cryptocurrencies.
Because the schedule is public and calculable years in advance, no one gets early or private knowledge of exactly when it will occur — everyone with a node can compute it.

Common misunderstandings

The exact calendar date is not fixed — it depends on the actual average block time in the years leading up to it, so estimates can shift by weeks either direction.
A halving cuts miner revenue from new coins in half overnight, which has historically pressured smaller, less efficient mining operations to shut down or consolidate.
Media coverage often conflates the halving mechanism (a supply-schedule fact) with price predictions (a speculative claim) — the two are not the same thing, and this page intentionally covers only the former.

Common questions

What is a Bitcoin halving?

A Bitcoin halving is a scheduled event, built into Bitcoin's code, that cuts the new-coin reward miners earn per block exactly in half. It happens every 210,000 blocks — about every four years — and is the mechanism that caps Bitcoin's total supply at 21 million coins.