zkSync Era — zk Rollup with native AA
zkSync Era ships native account abstraction and paymaster-sponsored gas. The accounting needs to handle both — and we do.
zkSync Era was an early-mover on native EIP-4337-style account abstraction. Smart-contract accounts are first-class on Era, and paymasters can sponsor gas for users (including paying gas in tokens other than ETH). For a finance team running operations on Era, the audit trail captures the user's logical action, the paymaster's gas cost, and the underlying ERC-20 movement when applicable. zk-proof finality is faster than optimistic rollups (no 7-day window) — withdrawals settle once the proof verifies on L1, typically within 24 hours.
What's tracked on zkSync Era
ETH and ERC-20 transfers
Standard EVM with zk-proof bridge timing.
Paymaster-sponsored gas
When a paymaster pays gas in USDC or another token, we track both the user's logical action and the paymaster's cost.
Native account abstraction
Smart-account transactions decoded with the entry-point pattern.
SyncSwap / Velocore / Maverick
Era-native DEX positions with realized-gain tracking.
ZK token treasury
ZK token unlock schedule, distribution rounds, fair-value snapshots.
zkSync Era accounting questions
How does paymaster gas affect tax treatment?
For the user, gas paid by a paymaster in USDC is a gas expense in USDC (not ETH). For the paymaster, it's an operating expense. We attribute correctly on both sides.
How fast are zkSync Era withdrawals to L1?
Typically under 24 hours — once the zk-proof verifies on L1 the funds are released. Faster than optimistic rollups (which carry a 7-day challenge window).
Other chain coverage and tax guides relevant to this network.
Book zkSync Era the right way
Free during Alpha. Connect a wallet, see every transaction reconciled to journal entries.