Bitcoin halving history
Review the dates and block heights of completed halvings, plus provisional low/high coordinates by season.
Halving history through the subsidy
Bitcoin crossed halving targets in 2012, 2016, 2020, and 2024. Target heights and subsidy changes are directly verifiable on-chain values.
View halvings on the price chart →
Compare the four confirmed halvings and the next target on one subsidy timeline.
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H1Confirmed50 → 25 BTC 2012-11-28 #210,000
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H2Confirmed25 → 12.5 BTC 2016-07-09 #420,000
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H3Confirmed12.5 → 6.25 BTC 2020-05-11 #630,000
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H4Current6.25 → 3.125 BTC 2024-04-20 #840,000
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H5Next3.125 → 1.5625 BTC Est. 2028 #1,050,000
Current issuance and remaining supply
A theoretical total of protocol block subsidies through the current block height.
- Theoretical cumulative issuance
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- Issued share of 21 million BTC
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- Theoretical issuance remaining
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- Current block subsidy
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- Subsidy after next halving
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- Annual new issuance at current subsidy (10-minute blocks)
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- Annual new issuance at next subsidy (10-minute blocks)
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Long-term halving schedule, 2012–2060
Read the confirmed first four halvings and later schedule by target height and post-halving subsidy. Future estimated years are explanatory ranges, not day-level date forecasts.
Halvings 1–4 use confirmed dates; later halvings use target heights and estimated years.
| Halving | Date or estimated year | Target block | Post-halving subsidy | Cumulative issued share |
|---|---|---|---|---|
| H1 | 2012-11-28 Confirmed | #210,000 | 25 BTC | 50.0% |
| H2 | 2016-07-09 Confirmed | #420,000 | 12.5 BTC | 75.0% |
| H3 | 2020-05-11 Confirmed | #630,000 | 6.25 BTC | 87.5% |
| H4 | 2024-04-20 Current | #840,000 | 3.125 BTC | 93.8% |
| H5 | Est. 2028 Next | #1,050,000 | 1.5625 BTC | 96.9% |
| H6 | Est. 2032 Estimate | #1,260,000 | 0.78125 BTC | 98.4% |
| H7 | Est. 2036 Estimate | #1,470,000 | 0.390625 BTC | 99.219% |
| H8 | Est. 2040 Estimate | #1,680,000 | 0.1953125 BTC | 99.609% |
| H9 | Est. 2044 Estimate | #1,890,000 | 0.09765625 BTC | 99.805% |
| H10 | Est. 2048 Estimate | #2,100,000 | 0.04882812 BTC | 99.902% |
| H11 | Est. 2052 Estimate | #2,310,000 | 0.02441406 BTC | 99.951% |
| H12 | Est. 2056 Estimate | #2,520,000 | 0.01220703 BTC | 99.976% |
| H13 | Est. 2060 Estimate | #2,730,000 | 0.00610351 BTC | 99.988% |
Dates for halvings 1–4 are confirmed records. Later years are explanatory ranges based on an approximately four-year cadence; the network fixes a target block height, not a calendar date.
Add the next halving reminder
Add the ten-minute-per-block estimate calculated from the current block height as an all-day calendar event.
Estimated date to add2028-04-13
This is not a confirmed date and will not update automatically after it is added. Use the event to return for the latest estimate.
Coordinates measure time from halving
A low coordinate of −516 means the selected date is 516 days before that season’s halving. A high coordinate of +535 means 535 days after. The coordinate does not represent price magnitude.
A shared axis makes calendar events from different years comparable around the same reference point.
Separate observations from interpretation
Halving dates and heights can be verified on-chain. Selecting a cycle low or high, however, depends on timezone, data coverage, and the rule used to choose it.
Season 1–4 dates and prices were rechecked on August 10, 2026 using TradingView BTC Index daily candles in UTC. The $57,748 observation on July 1, 2026 was recorded as a provisional Season 5 low candidate on August 21, while the existing forecast window remains a separate comparison.
Explore the next target block
2028 halving guide
Examine target block 1,050,000 and the subsidy change behind the next row in the long-term schedule.
View the next halving →Content updated