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What Is Solana Token-2022? Extensions and Review Questions

By StonkBuilder EditorialPublished 16 Sep 2026Updated 29 Oct 20263 min read

Token-2022 is a Solana token program that supports extensions for selected token behaviors. Extensions can be useful, but create configuration and compatibility questions. Compare the Solana memecoin guide with the exact mint and program identifiers.

FigureWhich extensions deserve the closest look
Holder impactReview priorityTransfer feehighcriticalTransfer hookcriticalcriticalPermanent delegatecriticalcriticalNon-transferablehighhighConfidential transfermediumhighMetadata pointerlowmediumlowmediumhighcritical
A permanent delegate or transfer hook can change what “owning” a token means.

A practical way to use this guide

Review the exact mint and owning token program before interpreting a ticker or a wallet label. Token-2022 is a separate program with optional mint and account extensions. Extensions may change transfer behavior, account state, metadata resolution, or program compatibility; the name of the program alone does not tell you which features a mint uses.

Read the extensions as configuration

The extension list below is a review aid, not a complete catalog. Read the mint, its authorities, and the linked primary documentation before explaining any feature to users.

ExtensionQuestion to answer before publishing
Transfer feeWhat fee applies to a transfer, where is it withheld, and which authority can withdraw it or update the schedule? See the Solana transfer-fee guide.
Permanent delegateWhich address has mint-level transfer or burn authority, and how is that authority controlled? Token-account owners cannot remove a permanent delegate from their own accounts. See Permanent Delegate.
Default account stateDo new token accounts start frozen, and who can thaw them or change the default state? See Default State.
PausableCan a pause authority stop transfers, minting, and burning for the mint, and under what disclosed process? See Pausable Mint.
Transfer hookWhich program is invoked on every transfer, what does it do, and which wallets or venues support the required accounts? See Transfer Hook.
Metadata pointerWhere is the metadata stored, who controls the pointer, and does the destination match the project's official records? See Metadata.

This is a sampling of extensions. Use the Token-2022 overview and the Solana extension documentation for the current list and exact behavior. Treat unsupported wallet or venue behavior as a compatibility question, not proof of malicious intent or safety. Publish the observed configuration, the source and time checked, and what remains unknown.

Limits and responsible use

Token-2022 is not a safety badge. An extension may be useful for a stated product need while also placing meaningful control in an authority. This guide does not establish who controls an address or predict support by a specific wallet, exchange, or protocol. Verify the current mint and primary documentation before acting. Legal and tax questions are separate and require qualified advice. Last reviewed 2026-10-22.

Quick review checklist

Before you rely on any crypto explanation, confirm the exact network, identifier, timestamp, data source, and intended audience. Follow the crypto glossary when a term is unfamiliar, and return to the crypto hub for the wider learning path. If the article describes a launch, pair it with the token launch guide and write down what the evidence does not establish. Prefer a small, reversible test over an irreversible action, keep private credentials out of forms and chats, and record material changes so readers can see what was updated.

Reviewed by StonkBuilder Editorial · Last reviewed 22 Oct 2026

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