What is EIP-1559?
EIP-1559 is an Ethereum Improvement Proposal that fundamentally changed how gas fees work on Ethereum. Implemented in the “London hard fork” (August 2021), it replaced the old blind-auction fee model with a more predictable base fee + tip system — and introduced ETH burning, making Ethereum potentially deflationary.
What Changed
Before EIP-1559
Users bid for block space in a first-price auction. You’d guess how much gas to pay, and if you guessed too low, your transaction sat pending for blocks or hours. Overpaying was common because there was no way to know the “right” price.
After EIP-1559
Each block has a protocol-set base fee that automatically adjusts based on network demand:
- If blocks are >50% full → base fee increases
- If blocks are <50% full → base fee decreases
- The base fee is burned (destroyed permanently)
- Users add an optional priority fee (tip) to incentivize validators to include their transaction faster
The Fee Structure
| Component | What It Is | Where It Goes |
|---|---|---|
| Base fee | Protocol-determined minimum | Burned (permanently destroyed) |
| Priority fee (tip) | User-set tip for faster inclusion | To the validator |
| Total gas cost | Base fee + Priority fee | Split between burn and validator |
Why EIP-1559 Matters
1. Fee Predictability
The base fee adjusts smoothly between blocks, making gas costs more predictable. Wallets can now accurately estimate fees.
2. ETH Deflation
Because the base fee is burned, ETH is removed from circulation with every transaction. When the burn rate exceeds new ETH issuance (validator rewards), the total ETH supply decreases — making ETH deflationary. This happened during high-activity periods.
3. Reduced Overpayment
Under the old system, users routinely overpaid because they couldn’t know what others were bidding. EIP-1559’s base fee system means most transactions pay close to the minimum needed.
The “Ultra Sound Money” Narrative
EIP-1559 gave rise to the “ultra sound money” narrative — the idea that ETH becomes a deflationary store of value when network activity is high enough. Bitcoin is “sound money” (capped supply at 21M); ETH with EIP-1559 can be “ultra sound” (shrinking supply during high demand).
What EIP-1559 Didn’t Fix
- High gas prices during congestion — the base fee still rises when the network is busy; EIP-1559 made it more predictable, not cheaper
- Scalability — it didn’t increase Ethereum’s throughput; that’s what Layer 2s and sharding address
- MEV — it didn’t eliminate transaction ordering manipulation
Frequently Asked Questions
Q: Does EIP-1559 make Ethereum transactions cheaper? A: Not directly. It makes fees more predictable and reduces overpayment, but during periods of high demand, gas is still expensive. Layer 2 rollups are the real solution to Ethereum’s cost problem.
Q: How much ETH has been burned? A: Millions of ETH have been burned since the London fork. You can track it in real-time on ultrasound.money or watchthedash.com.
Q: Is the base fee the same for all transactions? A: Yes, within the same block, all transactions pay the same base fee. However, the total cost varies because different operations (simple transfer vs. complex smart contract interaction) consume different amounts of gas.