How much do pool fees reduce my Monero mining earnings?

A mining pool fee usually reduces your Monero earnings by the stated percentage: a 1% fee means you keep about 99% of your reward before other costs. That sounds small, but its effect on your profit can be much bigger if electricity already uses up most of what you earn.

How to calculate the fee

A mining pool combines your mining work with work from other people. When the pool earns rewards, it shares them among participants and usually keeps a percentage to pay for running the service.

To estimate the effect:

• Pool fee cost = earnings before the fee × fee percentage
• Earnings after the fee = earnings before the fee × (1 − fee percentage)

Suppose your share of rewards before fees would be 0.01 XMR, where XMR is Monero’s currency symbol. These are examples, not earnings predictions:

• At 0.5%, the pool keeps 0.00005 XMR. You receive 0.00995 XMR.
• At 1%, the pool keeps 0.0001 XMR. You receive 0.0099 XMR.
• At 2%, the pool keeps 0.0002 XMR. You receive 0.0098 XMR.

Moving from a 2% fee to a 1% fee saves you 1% of your rewards before fees. It does not double your earnings.

Why a small fee can noticeably reduce profit

Your earnings are the rewards you receive. Your profit is what remains after fees, electricity, and other costs.

Imagine your mining rewards are worth $10 over a chosen period, before pool fees. If electricity costs $9, your profit before the pool fee is $1.

• A 1% pool fee costs $0.10, leaving $0.90 profit.
• A 2% pool fee costs $0.20, leaving $0.80 profit.

In this example, a fee equal to 1% of earnings removes 10% of your otherwise available profit. These dollar amounts are only an illustration, not a claim about current Monero prices or expected returns.

If your mining is already losing money, choosing a lower fee reduces the loss. It does not necessarily make mining profitable.

Check what the advertised fee leaves out

The pool’s headline percentage may not be your only deduction. Before comparing services, check for:

• Payout charges: Some services deduct a separate amount when sending your coins.
• Mining software fees: Some programs spend a small portion of mining time earning rewards for their developers.
• Browser service fees: If you mine through a website, it may keep a separate share of your work or rewards.

These deductions may apply at different stages. For example, two successive 1% deductions leave 98.01% of the original amount, rather than exactly 98%.

Also check whether a dashboard or calculator already includes the pool fee. Subtracting it again would make your estimate too low.

Compare what you actually receive

A lower fee is useful only if the service reliably credits your work. Connection problems and rejected work can outweigh a small fee saving.

Check the minimum payout too. This is the balance you must reach before coins are sent to you. It is not itself a fee, but it can leave small browser-mining earnings waiting for a long time.

The bottom line

A 1% pool fee normally takes about 1% of your mining rewards, not 1% of your profit. Compare all deductions and payout rules, then use a live calculator with your actual mining speed and electricity cost to judge whether the difference matters for you.