🔆Iota SRB
Learn how IOTA staking rewards are calculated. IOTASRB formula covers epoch rewards of 767,000 IOTA, epoch length, and total staked tokens.
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Learn how IOTA staking rewards are calculated. IOTASRB formula covers epoch rewards of 767,000 IOTA, epoch length, and total staked tokens.
IOTASRB is a benchmark representing the mean, annualized staking rate across all active IOTA validators.
IOTASRB is calculated and published by Staking Rewards via the IOTA Profile and Data API.
TL;DR: IOTA staking rewards come from a fixed epoch reward of 767,000 IOTA tokens. The reward rate equals epoch rewards annualized (seconds in year / epoch length) divided by total staked tokens. Validator-level rates factor in commission and performance.
sy
Seconds in year
The number of seconds in a year.
el
Epoch Length
The duration of the epoch in seconds.
re
Rewards Epoch
The number of rewarded tokens per epoch (767000 IOTA).
st
Staked Tokens
The number of staked tokens in the network.
IOTASRB operates on a non-compounded basis, meaning it excludes returns generated from the reinvestment of rewards.
IOTASRB is based on an assumption of 100% validator efficiency. For a IOTASRB adjusted according to individual validator performance, please refer to IOTASRB(v).
Validators with poor performance may be penalized by slashing the rewards they should have earned during an epoch. If other Validators determine a non-performing or misbehaving Validator, they can vote to slash the rewards of their validator for the epoch where the misbehavior has occurred. If the 2/3rd majority of voting power in an epoch votes in favor of slashing, the rewards that would have been distributed to the validator's staking pool for this epoch will be burned instead, leaving the stakers and the validator without rewards.
Staking Rewards calculates the IOTASRB for each validator based on their individual performance and commission rate.
p
Performance
The percentage of successfully validated blocks.
cr
Commission Rate
The percentage commission rate the validator has set as a delegation fee for all delegators.
Observation Period:
IOTASRB is determined based on the latest generated block at the point of evaluation.
This data is then annualized for a comprehensive year-long projection.
Calculation
The calculation happens every 2 hours and is immediately published via Data API.
Limitations
IOTASRB employs a 365-day convention for annualizing current block provisions and daily fees. This convention remains consistent and does not accommodate adjustments for leap years.
The real reward rate calculates the IOTASRB adjusted for inflation in the network.
i
Inflation Rate
The annual provisions adjusted by the actual block time of the last 24h and divided by the total token supply in the network.
Inflation Rate Behaviour
The release of IOTA tokens into circulation is controlled by a predefined schedule.
Unvested tokens released into circulation are also considered in this calculation.
Staking Rewards from indexed Blocks and Blockchain RPC Endpoints.
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Last updated on 05/23/2025