Payback period of an ASIC miner: how to calculate and what to take into account in 2026
The payback period of an ASIC is the time during which the income from mining will cover the cost of the device and all operating costs. With a hashprice of ~$46/PH/day in 2026 and a tariff of $0.06/kWh, the payback period for Antminer S21 Pro (~$4,500) is about 14-16 months. You can quickly check your situation in the POOL BTC calculator.
In short: payback = (ASIC price) / (income per day - electricity consumption per day). The main levers: the electricity tariff and the choice of a pool with a minimum commission. The difference in 1% commission for 200 PH/s is $30-40 thousand/year.
How to correctly calculate the payback period of ASIC?
Basic formula: Payback (days) = ASIC price / (Revenue per day - Electricity consumption per day).
Example for Antminer S21 Pro (212 TH/s, 3,500 W):
| Parameter | Value |
|---|---|
| ASIC Price | $4,500 |
| Hashprice (May 2026) | $46/PH/day |
| Revenue per day (212 TH/s) | $9.75 |
| Electricity consumption ($0.06/kWh) | $5.04 |
| Net income per day | $4.71 |
| Payback period | ~955 days (~32 month) |
At a tariff of $0.04/kWh, net income grows to $6.15/day, and payback is reduced to ~732 days (~24 months). That is why access to cheap electricity is more important than an ASIC model.
What electricity tariff is needed for profitable mining?
Practical guideline: with a hashprice of $46/PH/day, the break-even threshold for the S21 Pro (16.1 J/TH) is about $0.079/kWh. Anything higher means minus mining. For less efficient models the threshold is lower:
- S19j Pro (104 TH/s, 29.5 J/TH) - threshold ~$0.043/kWh
- WhatsMiner M30S++ (112 TH/s, 31 J/TH) - threshold ~$0.041/kWh
- Antminer S21 Pro (212 TH/s, 16.1 J/TH) - threshold ~$0.079/kWh
The current threshold always changes along with hashprice - check in calculator.
What else should be included in the calculation besides electricity?
The full calculation should take into account:
- Equipment depreciation - ASIC degrade over time, and after 3-4 years new generations make them uncompetitive.
- Pool commissionis usually 1-3% of income. On POOL BTC you can find pools with FPPS and a commission of 0-1%.
- Cooling and infrastructure - for a farm this is 5-15% of expenses.
- BTC rate - with an increase from $65k to $95k per year, income in USD increased by 46% even without changes BTC/day.
- Difficulty change - with an average annual hashrate growth of 50%, income in BTC/day decreases by approximately 33% per year.
How does the choice of pool affect the actual payback period?
At 200 PH/s, the difference between a pool with 0.5% and 2% commission is ~$1.5 thousand/month. Over the course of a year, the gap reaches $18 thousand - that’s 4 new ASIC S21 Pro. For a detailed comparison of the FPPS and PPLNS schemes, see the article FPPS vs PPLNS: which payment scheme to choose. POOL BTC rating will help you choose a pool with the best conditions.
Frequently asked questions about ASIC payback
Does it make sense to buy a used ASIC to shorten the payback period?
Yes, if the efficiency of the model is not lower than 20 J/TH and the device has passed diagnostics. A used S21 Pro for $2,800-3,200 will pay for itself 6-8 months faster than a new one at the same rate. Risk: hidden board defects and a shorter residual life.
Should you wait for the ASIC price to fall before buying?
A bear market reduces ASIC prices by 30-50%, but at the same time hashprice also falls. Historical pattern: buying ASIC 6-12 months before the next halving gave the best payback.
How to take into account the change in difficulty in the forecast?
In the POOL BTC calculator you can set the forecast hashrate increase in % per month. A conservative guideline for 2026 is +3-5% per month.
When will mining definitely not pay off?
If the break-even threshold for electricity is more than 20% lower than your tariff, even with an optimistic forecast for the BTC exchange rate, the device most likely will not pay off until it becomes obsolete.
Bottom line: mining pools and payment schemes - what to choose in 2026
The choice of payment plan affects real income more than many people think. FPPS is the optimal scheme for most miners: stable income, no dependence on the “luck” of a particular week. PPLNS is more profitable only with constant participation in one pool and a horizon of 6+ months. Solo mining - only for farms starting from 1 EH/s. To calculate the actual profitability taking into account the payment scheme, pool commission and your tariff, use the POOL BTC calculator. Comparison of current conditions of leading pools - on main page.