Why does Monero have a tail emission of 0.6 XMR per block?
Monero has a tail emission of 0.6 XMR per block so miners keep receiving a predictable base reward, even after its main supply has been issued. The aim is to support long-term network security without relying entirely on transaction fees, while letting the percentage increase in supply shrink over time.
Why miners need an ongoing reward
When you send Monero, miners help confirm your payment and protect the shared transaction record. They do this through proof of work: computers perform calculations, making it costly for anyone to rewrite that record or disrupt the network.
That work costs electricity and equipment. Miners receive two kinds of payment:
- Newly created XMR, called the block subsidy.
- Transaction fees paid by people sending XMR.
If newly created coins eventually stopped, miners would have to rely entirely on fees. Monero’s design avoids making its future security depend on whether transaction demand produces enough fee income.
Tail emission provides an ongoing base payment. It does not guarantee a particular level of security: the value of XMR, mining costs, and competition still affect how much computing power miners contribute.
Why the amount is 0.6 XMR
The number represents a design trade-off: keep creating enough coins to offer a continuing mining incentive, but keep new issuance relatively small compared with the existing supply.
Monero targets one block about every two minutes. At that pace, 0.6 XMR per block works out to approximately:
- 0.3 XMR per minute
- 432 XMR per day
- 157,680 XMR per year
Those are averages, not a promise that blocks arrive exactly on schedule.
There is no mathematical rule proving that 0.6 XMR is the uniquely correct security budget. It is a chosen policy balance between paying miners and limiting supply growth. Nor does it promise miners a fixed income in dollars or any other currency.
Tail emission began around June 2022, after the main emission had issued roughly 18.13 million XMR. At that scale, its annual supply growth was under 1%.
Why inflation keeps falling
Monero has no fixed maximum supply. But that does not mean its supply grows by the same percentage forever.
The number of new coins stays roughly constant each year, while the total supply gets larger. The same addition therefore becomes a smaller percentage of the whole.
For example, annual issuance of about 157,680 XMR would equal:
- About 0.79% of a hypothetical 20 million XMR supply.
- About 0.39% of a hypothetical 40 million XMR supply.
This is supply inflation, not a forecast for purchasing power. It cannot tell you whether XMR’s market price will rise or fall.
How it fits Monero’s fee design
Monero allows block capacity to adjust with demand rather than using one permanently fixed size limit. Miners face reward penalties for expanding blocks too aggressively.
A continuing subsidy helps preserve that incentive: miners have a reward to lose if they make blocks excessively large. Fees can justify expansion when demand warrants it.
Tail emission therefore supports both ongoing miner payments and Monero’s approach to managing block space. It does not make transactions free or guarantee low fees in every situation.
The bottom line
The purpose of 0.6 XMR per block is continuity: miners always have a base reward, while new issuance becomes proportionally smaller. You can think of it as Monero choosing a small, ongoing supply increase over relying entirely on future transaction fees.
