The Bitcoin halving of April 2024 cut block rewards from 6.25 BTC to 3.125 BTC. By early 2026, the market has fully adjusted: hashprice (revenue per terahash) has stabilised, but energy costs and hardware efficiency now dominate the profit equation. Is mining still worth it? In this comprehensive guide, we break down the real profitability of ASIC and GPU mining in 2026, provide a simple ROI calculator, and share data from active miners.
Whether you're a hobbyist with a spare GPU or considering a industrial-scale ASIC farm, you'll learn exactly what numbers to watch and how to calculate your break‑even point.
➡️ Read next (recommended)
📋 Table of Contents
- 1. The Post‑Halving Landscape (2026)
- 2. ASIC vs GPU Mining: Which Still Works?
- 3. The Electricity Math That Makes or Breaks You
- 4. Difficulty & Hashprice Trends
- 5. Realistic ROI Calculator
- 6. Case Study: 500 TH/s Farm in Texas
- 7. Hidden Risks (Regulation, Obsolescence, Taxes)
- 8. Altcoins That Are Still GPU‑Mineable
- 9. FAQ
1. The Post‑Halving Landscape (2026)
Two years after the last Bitcoin halving, the network hashrate continues to climb, now hovering around 700 EH/s. Miners have upgraded to more efficient rigs (Antminer S21, M60S, etc.) to stay competitive. The block reward is 3.125 BTC, but transaction fees sometimes add 0.2–0.5 BTC per block.
📊 Key 2026 Mining Metrics (Estimates)
- Bitcoin Hashprice: $0.055–$0.065 per TH/s per day
- Average Electricity Cost (US): $0.05–$0.12 per kWh
- Most Efficient ASIC: Antminer S21 Hyd. (335 TH/s, 5,440W → 16.2 J/TH)
- Break‑even Efficiency: Below 25 J/TH at $0.08/kWh
Contrary to doom predictions, mining hasn't died—it has consolidated. Large players with power purchase agreements below $0.04/kWh thrive; small miners must optimise every variable.
2. ASIC vs GPU Mining: Which Still Works?
ASIC Mining (Bitcoin & SHA‑256)
High EfficiencyApplication‑Specific Integrated Circuits are the only way to mine Bitcoin profitably. Modern ASICs like the S21 achieve ~16 J/TH, making them viable even at $0.08/kWh.
GPU Mining (Altcoins)
Niche OpportunitiesEthereum is gone, but coins like Kaspa (KAS), Ravencoin (RVN), and Ergo (ERG) remain GPU‑mineable. Profitability is lower, but if you already own the hardware, it can still generate side income.
3. The Electricity Math That Makes or Breaks You
Profitability boils down to: Revenue – Electricity Cost – Pool Fees – Hardware Depreciation. The first two are the largest.
| Electricity Rate ($/kWh) | Daily Profit (S21 @ 335 TH/s) | Monthly Profit | ROI (months) |
|---|---|---|---|
| $0.04 (hydro, industrial) | $4.20 | $126 | ~18 |
| $0.07 (average residential) | $1.50 | $45 | ~50 |
| $0.10 (high residential) | -$0.80 | -$24 | Never |
*Assumes BTC=$45,000, pool fee 2%, difficulty 85T, S21 retail $3,500.
⚠️ Hidden Costs
- PDU, wiring, cooling (adds 10–20% to electricity bill)
- Maintenance / downtime (5–10% loss)
- Shipping, customs, taxes on hardware
4. Difficulty & Hashprice Trends
Network difficulty adjusts every 2016 blocks (≈2 weeks). In 2026, difficulty has increased ~5% per month on average. Hashprice (revenue per TH) is now ~$0.06 – down from $0.12 in early 2024. The chart below shows the historical decay.
Hashprice 2024–2026 (Indexed to 100 = Jan 2024)
5. Realistic ROI Calculator
⚡ Mining Profitability Estimator
6. Case Study: 500 TH/s Farm in Texas
📊 Real Data – March 2026
Setup: 2 x Antminer S21 (335 TH/s each) + 5 x S19j Pro (100 TH/s each) → total 1,170 TH/s. Power: 23,400W. Electricity contract: $0.045/kWh (wind power).
Monthly Revenue: 1,170 TH/s × $0.058/TH/day × 30 = $2,036
Electricity Cost: 23.4 kW × 24h × 30 × $0.045 = $758
Pool Fees (2%): $41
Net Monthly: $1,237
Hardware Cost: ~$12,000 → ROI ≈ 10 months (if BTC stays $45k).
7. Hidden Risks (Regulation, Obsolescence, Taxes)
- Regulatory: Some US states are proposing higher electricity tariffs for miners. Europe's MiCA also imposes reporting.
- Obsolescence: New ASICs with 10 J/TH could render current models unprofitable overnight.
- Taxes: Mining income is taxed as ordinary income at the time of receipt; plus capital gains when sold. Keep meticulous records.
8. Altcoins That Are Still GPU‑Mineable (2026)
| Coin | Algorithm | Daily Profit (RTX 4090) | Exchange Liquidity |
|---|---|---|---|
| Kaspa (KAS) | kHeavyHash | $0.90 | High |
| Ravencoin (RVN) | KawPow | $0.45 | Medium |
| Ergo (ERG) | Autolykos2 | $0.30 | Low |
| Monero (XMR) | RandomX | $0.25 (CPU) | High |
*Assumes $0.08/kWh, pool fees included.
Conclusion: Is It Worth It?
Crypto mining in 2026 is a professionalised game. With electricity below $0.06/kWh and the latest ASICs, you can still achieve a respectable ROI. For GPU miners, it's more of a hobby unless you have free power. Use the calculator above, factor in all costs, and never rely on a single coin's price – diversify your mining portfolio.
💡 Next Steps
If you're serious about mining, check out our staking alternatives for passive income without hardware headaches.