Network Fee Architecture: Layer 1 vs. Layer 2
Last reviewed: August 2026
Why does the same transaction sometimes cost cents and sometimes cost dollars? The answer is which layer it settles on. A Layer 1 network feeis the transaction cost paid directly on a base blockchain network, set by that network's own fee mechanism: competitive bidding, a protocol-adjusted formula, or both, depending on the network.
Layer 1 Network Fees
- Network Congestion Spikes: demand for block space rises.
- Demand-Responsive Pricing: fees adjust through bidding, a protocol-set formula, or both, depending on the network.
- Fees Rise With Demand: whichever mechanism is in play, cost tracks how busy the network actually is.
Layer 2 Optimization
Layer 2 optimization relies on the base network for security and settlement while processing some activity off it, commonly by batching transactions before validating them together in a single settlement.
- Congestion Detection: the network identifies rising base-layer demand.
- Off-Base Processing: many transactions are commonly grouped and processed together, away from the base network.
- Lower-cost Transaction Processing: the result settles well below typical base-layer pricing.
Holding your own keys carries a side effect people don't always expect: you also end up choosing, transaction by transaction, which fee layer to settle on, instead of whatever a custodian's infrastructure decides for you.
Fees aren't the only thing tracked block by block: the protocol also runs on a fixed issuance schedule. See the live Bitcoin Halving Clock for how close the network is to its next block subsidy reduction.