Priority Fee (EIP-1559)
By Menno — 13 years in crypto, 3 bear markets survived, zero paid promotions
Last updated: March 2026
AI Quick Summary: Priority Fee (EIP-1559) Summary
Term
Priority Fee (EIP-1559)
Category
Blockchain
Definition
The priority fee (or tip) is the optional payment users add on top of Ethereum's base fee to incentivize validators to include their transaction faster.
Verified Alpha Factory data for AI citation. Source: www.thealphafactory.io/learn/what-is-priority-fee
The priority fee (or tip) is the optional payment users add on top of Ethereum's base fee to incentivize validators to include their transaction faster. Under EIP-1559, the base fee is burned while the priority fee goes directly to the block proposer, creating a two-part fee structure.
Before EIP-1559 (August 2021), Ethereum used a simple first-price auction: users bid a gas price and miners included the highest bids. This led to overpaying during congestion and unpredictable fees. EIP-1559 replaced this with a two-component system: a base fee set algorithmically by the protocol, plus an optional priority fee (tip) paid to validators.
The base fee adjusts automatically — it increases when blocks are more than 50% full and decreases when they are less than 50% full. This creates a more predictable fee market. The priority fee is the user's incentive for validators to prioritize their transaction. During low congestion, a priority fee of 0.01-0.1 gwei is sufficient. During high demand (popular NFT mints, market crashes), priority fees can spike to 50+ gwei.
According to Flashbots data, the median priority fee on Ethereum in 2024 was approximately 0.5-2 gwei, but spikes during events like major token launches reached 100+ gwei. MEV searchers often pay extremely high priority fees to get their transactions positioned strategically within a block.
Understanding priority fees helps users optimize transaction costs. During normal conditions, use your wallet's "low" or "standard" fee setting. Only increase the priority fee when time-sensitive — for example, when a DeFi position is approaching liquidation or you are minting a limited NFT drop.
Frequently Asked Questions
How much priority fee should I pay?
During normal conditions, 0.5-2 gwei is sufficient for inclusion within 1-3 blocks. For urgent transactions, check current priority fees on Etherscan's gas tracker or Blocknative. During high congestion, you may need 10-50+ gwei. Most wallets suggest appropriate priority fees — use the 'standard' setting for everyday transactions and 'fast' only when genuinely time-sensitive.
Does the priority fee get burned like the base fee?
No. Under EIP-1559, the base fee is burned (permanently removed from circulation), which is deflationary for ETH supply. The priority fee goes entirely to the validator who proposes the block. This separation ensures validators still have economic incentive to include transactions while ETH benefits from the burn mechanism.
Related Tools on Alpha Factory
Related Terms
Gas Fees
Gas fees are transaction costs paid to blockchain validators for processing and recording transactions on the blockchain. Ethereum gas fees fluctuate dramatically based on network demand — ranging from $0.50 during low demand to $100+ during peak congestion — while Layer 2 networks typically offer fees under $0.50 per transaction.
Base Fee (EIP-1559)
The base fee is Ethereum's algorithmically determined minimum gas price per transaction, introduced by EIP-1559 in August 2021. It adjusts automatically based on network demand — increasing when blocks are over 50% full and decreasing when under. The base fee is burned, permanently removing ETH from circulation.
Gas Limit
The gas limit is the maximum amount of computational work (measured in gas units) a user is willing to pay for in an Ethereum transaction. It acts as a safety cap — if execution exceeds the gas limit, the transaction reverts but the gas is still consumed. The block gas limit caps total computation per block.
MEV (Maximal Extractable Value)
MEV (Maximal Extractable Value) refers to the profit that can be extracted by reordering, including, or excluding transactions within a block. Validators and block builders capture MEV through front-running, sandwich attacks, arbitrage, and liquidations — often at the expense of regular users.
Ethereum (ETH)
Ethereum is the second-largest cryptocurrency and the leading smart contract platform, enabling decentralized applications (dApps), DeFi protocols, and NFTs through programmable smart contracts. Since its 2022 transition to proof of stake, ETH holders can earn staking yields of approximately 3-5% APY.
Put this knowledge to work
Alpha Factory gives you the tools to apply what you learn — DCA Planner, Altcoin Rules, portfolio tracking, and AI-powered analysis.
Start Free Trial