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Change tax settings
Blockchain
Token address
Change tax settings
New tax rate
%
New max fee per transaction
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The tax config tool is a specialized utility that allows token creators and managers to customize the transfer fee parameters for tokens with the transfer fee extension. This tool is valuable for:
- Adjusting fee percentages based on market conditions
- Implementing revenue generation strategies for project treasuries
- Creating incentive structures through fee mechanics
- Managing buyback and burn programs funded by transfer fees
This tool provides a straightforward interface to modify fee settings, helping projects maintain optimal tokenomics as their ecosystem evolves.
The 20lab tax config tool allows you to manage 2 key transfer fee parameters:
- Fee Percentage - The percentage of each transfer collected as a fee
- Maximum Fee per transaction - A cap on the maximum fee that can be collected per transaction
These parameters provide flexible fee management, allowing projects to implement sophisticated tokenomics models while avoiding excessive fees that might discourage token usage.
Only the current Transfer Fee Config Authority can modify tax settings. This is typically:
- The original token creator who deployed the token
- Any wallet address that has been transferred the fee config authority
- A multisig wallet if the fee config authority has been transferred to one
- A governance program if fee control has been delegated to it
If the transfer fee config authority has been revoked (set to null) or transferred to an inaccessible address, fee parameters cannot be modified. This permanence can provide certainty to holders about future fee structures.
Yes, if you have the transfer fee config authority, you can update tax settings at any time. However, it's important to note that:
- Changes don't take effect immediately - There is a 2-epoch delay (approximately 4 days) before new tax settings become active
- This delay is built into the Solana Token-2022 program as a security feature
- During this delay period, the old tax settings remain in effect
- The pending changes are visible on-chain and can be verified using block explorers
The ability to modify tax settings provides projects with flexibility to adapt their revenue model as circumstances change, but the delay period ensures all participants have sufficient notice before fee structures change.
To modify tax settings with the 20lab tax config tool:
- Connect the wallet that holds the transfer fee config authority
- Enter your token's mint address
- Review the current fee settings displayed in the interface
- Enter your desired new fee percentage and maximum fee amount
- Confirm the transaction to update the settings
The 20lab interface will verify your authority before allowing the transaction to proceed. Once confirmed, the changes will be scheduled but will not take effect immediately. There is a 2-epoch delay (approximately 4 days) before the new fee parameters become active, as mandated by the Solana Token-2022 program.
Setting a high tax rate can have significant impacts on your token ecosystem:
- Reduced Trading Activity - Users may be discouraged from transferring tokens if fees are prohibitive
- Market Liquidity Issues - High fees can reduce market depth and increase price volatility
- User Experience Concerns - Holders may be frustrated by significant value loss during transfers
- Competitive Disadvantage - Users might prefer tokens with lower or no transfer fees
While higher fees generate more revenue per transaction, they typically result in fewer transactions overall. Most successful projects find a balance point where fees are high enough to support project development but low enough to maintain active usage and trading of the token.
Transfer fees apply consistently to most token movements:
- Standard Transfers - Fees apply to all normal wallet-to-wallet transfers
- DEX Trades - Fees apply when tokens are traded on markets
- Minting Operations - Creating new tokens does NOT incur transfer fees
- Burning Operations - Destroying tokens does NOT incur transfer fees
There is no built-in exemption mechanism for transfer fees in the Token-2022 program. All transfers incur the configured fee, regardless of the sending or receiving address. This consistent application ensures that fees are applied fairly across all users and use cases, with only mint and burn operations being exempt.
Yes, all changes to transfer fee parameters are transparent and visible in several ways:
- Solana block explorers display the current fee configuration
- The fee update transaction is recorded on the blockchain
- Many wallets show the applicable fee when users initiate transfers
- Advanced tools can track fee parameter changes over time
This transparency is important for maintaining trust with your community. Many successful projects announce fee changes in advance through their communication channels and provide clear explanations for why adjustments are being made, particularly if fees are being increased.




