Real-time market data
Bitcoin Halving 2028
The halving is the most predictable — and most violent — event in Bitcoin mining economics. The block reward is cut in half every 210,000 blocks (~4 years). Each halving redraws the map of profitable ASICs.
Halving #5 in
April 21, 2028
Block 1,050,000
Key figures
- Current reward
- 3.125 BTC / block
- Post-halving reward
- 1.5625 BTC / block
- Target block
- 1,050,000
- Daily issuance post-halving
- ~225 BTC (vs ~450 today)
- Direct mining revenue impact
- −50% on block subsidy
History of the 4 prior halvings
| # | Date | Block | Reward | Change |
|---|---|---|---|---|
| 1 | 2012-11-28 | 210,000 | 50 → 25 BTC | -50% |
| 2 | 2016-07-09 | 420,000 | 25 → 12.5 BTC | -50% |
| 3 | 2020-05-11 | 630,000 | 12.5 → 6.25 BTC | -50% |
| 4 | 2024-04-19 | 840,000 | 6.25 → 3.125 BTC | -50% |
Impact on ASICs in 2028: who survives?
Assumption: hashprice halved (from $55 to $27 per PH/day). Pool fee 2%. The table shows the maximum all-in electricity cost an ASIC can absorb to stay profitable post-halving — directly comparable to your hosting rate.
| ASIC | Efficiency | Current break-even | Post-2028 break-even | Verdict @ $0.06/kWh |
|---|---|---|---|---|
| Antminer S23 Hydro | 9.5 J/TH | $0.144 | $0.072 | Stays profitable |
| Antminer S23 | 11 J/TH | $0.124 | $0.062 | Stays profitable |
| Antminer S21 XP | 13.5 J/TH | $0.101 | $0.050 | Tight margin |
| Antminer S21 Pro | 15 J/TH | $0.091 | $0.045 | Tight margin |
| Antminer S21 | 17.5 J/TH | $0.078 | $0.039 | At risk |
| Whatsminer M60S+ | 17 J/TH | $0.080 | $0.040 | At risk |
| Antminer S19 XP | 21.5 J/TH | $0.063 | $0.032 | Likely shutdown |
| Antminer S19j Pro | 30 J/TH | $0.045 | $0.023 | Likely shutdown |
Reading: at $0.06/kWh all-in (Startmining Iceland hosting, large accounts), ASICs up to 17 J/TH remain solvent post-halving without BTC price appreciation. At $0.075/kWh (Startmining Europe retail hosting), only the S23 and S23 Hydro (≤ 11 J/TH) clear the halving comfortably. Bottom line: the 2028 halving will reward operators running latest-gen hardware on competitive hosting.
Frequently asked questions
When exactly is the next Bitcoin halving?+
The date isn't fixed — the halving occurs at block 1,050,000, and average block time varies. The current estimate is April 21, 2028, but the actual date can shift by ±2 weeks depending on network hashrate evolution.
Will Bitcoin mining still be profitable after 2028?+
Yes — provided you run efficient hardware on competitive hosting. At $0.075/kWh all-in in Europe (Startmining retail offer), S23 and S23 Hydro remain profitable without BTC appreciation. At $0.06/kWh all-in in Iceland (Startmining large-account offer), any ASIC ≤ 17 J/TH stays profitable. The halving primarily eliminates operations running old hardware at $0.10+/kWh.
Will Bitcoin price rise after the halving?+
In the 3 prior halvings (2012, 2016, 2020), BTC reached a new all-time high within 12-18 months. This is not a guarantee for 2028 — past performance does not predict future returns, and the mining industry has matured significantly.
Which ASICs are built to clear the 2028 halving?+
The Antminer S23 Hydro (9.5 J/TH) and S23 (11 J/TH) are the most resilient: profitable even at $0.075/kWh post-halving. The S21 XP (13.5 J/TH) and Whatsminer M70S/M78S (13.9-14 J/TH) remain excellent at $0.06/kWh all-in (Iceland hosting). Anything ≤ 15 J/TH on competitive hosting clears the bar.
How many halvings are left?+
31 halvings remain in theory. The last one will occur ~2140 (block 6,930,000), at which point the reward will drop to ~0.0000000058 BTC — economically negligible compared to transaction fees.
Simulate your profitability through the halving
Our simulator includes the 2028 halving impact across 8 investment strategies (mining DCA, mine & hold, buy spot, etc.) with 16-year backtest data.