Decoding TON Storage Fees: Critical Insights for Smart Contract Developers

Storage fees in TON aren't merely about data retention costs—they fundamentally impact smart contract execution, transaction validation, contract balance visibility, and account state management. Understanding the storage fee mechanism is essential for developers building on TON, as overlooking these details can lead to subtle bugs and unexpected contract behavior that undermines application reliability. The article provides the technical foundation developers need by explaining precisely how storage fees are calculated and when they are collected relative to transaction phases.