Understanding EVM Chains: Ethereum, Polygon, Base, Arbitrum, and Optimism

What EVM Compatibility Means for Business

The Ethereum Virtual Machine, or EVM, is the runtime environment that executes smart contracts on the Ethereum blockchain. When we say a blockchain is EVM-compatible, it means that chain can run the same smart contract code, use the same developer tools, and interact with the same wallet software as Ethereum. This compatibility has created a rich ecosystem of interoperable blockchains that share a common programming model while offering different tradeoffs in terms of cost, speed, and decentralization.

For businesses building payment infrastructure, EVM compatibility is enormously valuable because it means a single set of smart contracts and integration code can work across multiple chains with minimal modification. A payment forwarder contract deployed on Ethereum can be deployed with the same bytecode on Polygon, Base, Arbitrum, and Optimism. The same wallet address format (0x-prefixed hexadecimal) works across all EVM chains, and the same token standards (ERC-20 for stablecoins) apply everywhere. This dramatically reduces the engineering cost of supporting multiple chains.

The existence of multiple EVM-compatible chains is not redundant — each chain makes different engineering tradeoffs that make it better suited for specific use cases. Ethereum mainnet offers the highest security and decentralization but at the cost of higher fees. Layer 2 networks like Polygon, Arbitrum, Base, and Optimism inherit varying degrees of Ethereum's security while providing dramatically lower fees and higher throughput. Understanding these tradeoffs is essential for choosing the right chain — or combination of chains — for your payment operations.

Ethereum Mainnet: The Security Anchor

• Average gas fee for ERC-20 transfer: $1-$10 (varies with congestion)
• Transaction finality: ~12 minutes (after epoch finalization)
• Security: Highest among all EVM chains — $100B+ in staked ETH
• Best for: Large-value transactions where security takes priority over fees
• Stablecoin support: USDC, USDT, DAI, and all major stablecoins

Ethereum is the original and most widely adopted smart contract platform, with a market capitalization exceeding $300 billion and the largest ecosystem of developers, applications, and users of any programmable blockchain. Since its transition to proof-of-stake consensus in September 2022, Ethereum has been secured by over $100 billion in staked ETH, making it arguably the most economically secure blockchain in existence. For businesses that prioritize settlement security above all else, Ethereum mainnet is the gold standard.

The primary drawback of Ethereum mainnet for payment purposes is its gas fee structure. While the network has become more efficient through various upgrades, transferring an ERC-20 token like USDC on Ethereum mainnet typically costs between $1 and $10 in gas fees, with costs spiking higher during periods of network congestion. For large transactions — say, an enterprise paying a $50,000 annual contract in USDC — a $5 gas fee is negligible. For a $50 monthly subscription, however, that same gas fee represents a 10% surcharge that makes the transaction impractical.

Ethereum mainnet's role in the multi-chain ecosystem has evolved toward being a settlement and security layer rather than the primary execution environment for everyday transactions. Most high-frequency, lower-value transactions — including SaaS subscription payments — have migrated to Layer 2 networks that post their transaction data back to Ethereum for finality. Businesses should support Ethereum mainnet payments for customers who prefer it, particularly for larger transactions, while routing most payment volume through Layer 2 chains where fees are orders of magnitude lower.

Polygon: The Established Layer 2

• Average gas fee for ERC-20 transfer: $0.01-$0.05
• Transaction speed: ~2 seconds to confirmation
• Security: Independent PoS validator set + checkpoints to Ethereum
• Best for: High-volume, lower-value payments; broad wallet compatibility
• Notable: Extensive ecosystem, major brand partnerships, zkEVM development

Polygon has established itself as one of the most widely adopted Layer 2 scaling solutions for Ethereum, with a vibrant ecosystem that includes major partnerships with brands like Starbucks, Nike, and Reddit, alongside deep integration with DeFi protocols and payment platforms. Polygon PoS, the network's primary chain, processes transactions at a fraction of Ethereum's cost while maintaining a robust validator set and billions of dollars in total value locked. For businesses looking for a battle-tested, low-cost EVM chain with strong brand recognition, Polygon is a compelling choice.

Transaction fees on Polygon PoS are typically between $0.01 and $0.05 for a standard ERC-20 transfer, making it viable for even the smallest subscription payments. The network confirms transactions in approximately two seconds, providing a near-instant payment experience. Polygon's wide adoption means that most major wallets — MetaMask, Coinbase Wallet, Trust Wallet, and others — support it natively, reducing friction for users who need to add the network to their wallet configuration.

Polygon has been actively developing its next-generation infrastructure through Polygon zkEVM, a zero-knowledge rollup that offers even stronger security guarantees by generating cryptographic proofs of transaction validity that are verified on Ethereum mainnet. While Polygon PoS and Polygon zkEVM coexist as separate networks today, the roadmap envisions migration toward ZK-based security. For businesses building on Polygon, both networks are viable options, with PoS offering the larger existing user base and zkEVM offering stronger Ethereum-inherited security guarantees. The USDC and USDT liquidity is well-established on Polygon PoS, making it an excellent chain for payment operations.

Base: Coinbase's Onchain Platform

• Average gas fee for ERC-20 transfer: $0.001-$0.05
• Transaction speed: ~2 seconds to confirmation
• Security: Optimistic rollup posting data to Ethereum; Coinbase as sequencer
• Best for: Coinbase-adjacent users; lowest possible fees; native USDC
• Notable: Fastest-growing L2 by TVL, backed by Coinbase's regulatory standing

Base is a Layer 2 network built on the OP Stack (Optimism's open-source rollup framework) and incubated by Coinbase, the largest publicly traded US cryptocurrency exchange. Launched in August 2023, Base has rapidly grown to become one of the most active Layer 2 networks by transaction volume, driven by Coinbase's massive user base and aggressive ecosystem development. For businesses that value the association with a regulated, publicly traded company and want access to Coinbase's user onboarding infrastructure, Base offers a uniquely compelling value proposition.

Base's fees are among the lowest of any EVM chain, typically ranging from $0.001 to $0.05 for a standard token transfer. Following Ethereum's Dencun upgrade in March 2024, which introduced blob transactions for Layer 2 data posting, Base's fees dropped further and have remained consistently low even during periods of high network activity. Transaction confirmation takes about two seconds, and the network benefits from Optimism's well-tested rollup architecture for posting transaction data to Ethereum mainnet, providing strong security guarantees inherited from Ethereum's validator set.

One of Base's most significant advantages for payment infrastructure is its native USDC support through Circle's partnership with Coinbase. USDC on Base is natively issued by Circle rather than bridged from Ethereum, which eliminates bridge-related smart contract risk and ensures that USDC on Base carries the same guarantees as USDC on Ethereum. Additionally, Coinbase's onramp and offramp infrastructure is deeply integrated with Base, making it easy for users to move funds between their Coinbase account and Base-native wallets. For SaaS companies whose customers include Coinbase users, Base provides the lowest-friction path to crypto payments.

Arbitrum: The DeFi Powerhouse

• Average gas fee for ERC-20 transfer: $0.01-$0.10
• Transaction speed: <2 seconds to confirmation
• Security: Optimistic rollup with fraud proof mechanism on Ethereum
• Best for: DeFi-native users; highest on-chain liquidity among L2s
• Notable: Largest L2 by TVL, Arbitrum DAO governance, Nitro tech stack

Arbitrum, developed by Offchain Labs, has established itself as the leading Layer 2 network by total value locked in DeFi applications, with a rich ecosystem of decentralized exchanges, lending protocols, and yield platforms. While its DeFi dominance is less directly relevant to payment use cases, it signals deep liquidity and a large, active user base — both of which are important for businesses accepting stablecoin payments. When customers hold significant crypto assets on Arbitrum, they want to pay for services from their Arbitrum wallets without needing to bridge funds to another chain.

Arbitrum uses an optimistic rollup architecture, similar to Base and Optimism, where transactions are processed off-chain and posted to Ethereum with a challenge period during which fraudulent transactions can be disputed. Gas fees on Arbitrum typically range from $0.01 to $0.10 for ERC-20 transfers, and transactions confirm in under two seconds. The network has demonstrated robust performance under heavy load, processing millions of transactions daily without significant degradation in speed or cost predictability.

For businesses building payment infrastructure, Arbitrum's key strength is its liquidity depth. Major stablecoins including USDC, USDT, and DAI are widely held on Arbitrum, and the network's DEX ecosystem provides efficient exchange between tokens if needed. Arbitrum also supports Circle's CCTP for native USDC transfers to and from other chains, and the network's bridge infrastructure for other assets is well-established and battle-tested. The combination of low fees, fast confirmations, deep liquidity, and strong security makes Arbitrum an essential chain for any multi-chain payment strategy.

Optimism: The Public Goods Network

• Average gas fee for ERC-20 transfer: $0.01-$0.10
• Transaction speed: ~2 seconds to confirmation
• Security: Optimistic rollup with evolving fault proof system on Ethereum
• Best for: OP Stack ecosystem alignment; Superchain interoperability
• Notable: Foundation of the Superchain, retroactive public goods funding model

Optimism is the originators of the OP Stack, the open-source rollup framework that also powers Base and several other Layer 2 networks. This positions Optimism at the center of an emerging Superchain ecosystem where multiple OP Stack chains can interoperate seamlessly, sharing security infrastructure and enabling cross-chain messaging. For businesses thinking long-term about multi-chain payment infrastructure, Optimism's role as the foundation of this expanding ecosystem makes it a strategically important chain to support.

The technical characteristics of Optimism are similar to those of Base and other OP Stack chains: ERC-20 transfer fees typically range from $0.01 to $0.10, transactions confirm in about two seconds, and the optimistic rollup mechanism provides Ethereum-backed security guarantees. USDC, USDT, and DAI are all well-supported on Optimism, with native USDC available through Circle's CCTP. The network's performance has been stable and predictable, and the upcoming fault-proof graduation milestone will further strengthen its security profile.

Optimism's governance model, centered on the Optimism Collective and its retroactive public goods funding mechanism, has attracted a distinctive community of developers and organizations focused on building sustainable, open-source infrastructure. Businesses that align with this ethos may find Optimism's community particularly receptive to their products and services. From a pure payment infrastructure perspective, Optimism offers comparable performance and cost characteristics to Base and Arbitrum, and supporting it alongside those chains ensures coverage of the broadest possible set of Layer 2 users.

Choosing the Right Multi-Chain Strategy

• Start with 2-3 chains that cover your primary customer demographics
• Leverage EVM compatibility to deploy the same contracts across all supported chains
• Use multi-chain RPC providers to simplify infrastructure management
• Monitor transaction volume by chain to inform expansion priorities
• Build chain-agnostic architecture that makes adding new chains a configuration change
• Consider TRON alongside EVM chains for maximum global coverage

The question for businesses is not which single chain to support, but rather which combination of chains maximizes customer coverage while keeping operational complexity manageable. The good news is that EVM compatibility means the marginal cost of adding each additional chain is low once the initial infrastructure is in place. A payment smart contract deployed on Ethereum can be deployed on any EVM chain with the same code, and monitoring tools like Alchemy, Infura, and QuickNode provide multi-chain RPC access through a single API.

A practical starting point for most businesses is to support Polygon and Base as primary payment chains, with Arbitrum and Optimism as secondary options, and Ethereum mainnet for large-value transactions. This combination covers the vast majority of EVM-based stablecoin holders while keeping gas costs minimal for typical SaaS payment amounts. Adding TRON support (which is not EVM-compatible but is critical for USDT payments in emerging markets) requires separate infrastructure but addresses a large and underserved payment demographic. This is precisely the approach that platforms like doc9 have taken, supporting all six networks to maximize global payment accessibility.

When evaluating chains, consider not just the current landscape but the trajectory. The Layer 2 ecosystem is maturing rapidly, and cross-chain interoperability is improving with standards like Circle's CCTP and emerging bridge protocols. Today, each chain requires separate monitoring and fund management. Tomorrow, the Superchain vision and similar interoperability initiatives may allow businesses to consolidate operations while still accepting payments on any chain. Building your infrastructure with this evolution in mind — using modular, chain-agnostic architecture — ensures that your payment system remains future-proof as the multi-chain ecosystem develops.