Tax Params

Collect each parameter below from the user. Validate constraints before proceeding.

Rates (basis points, 1% = 100 bps)

Parameter	Type	Constraints	Default / Suggestion
buyTaxRate	uint16	1–1000 (0.01%–10%)	300 (3%)
sellTaxRate	uint16	1–1000 (0.01%–10%)	1000 (10%)

Asymmetric buy/sell rates are supported (Tax Token V3).

Durations

Parameter	Type	Constraints	Default
taxDuration	uint64 seconds	min 365 days; max 100 years	100 * 365 days
antiFarmerDuration	uint64 seconds	min 1 day; max 1 year	3 days

taxDuration is how long the tax is applied. After it expires the token behaves like a standard token. antiFarmerDuration prevents farmers from draining the trading fees.

Revenue distribution (must sum to exactly 10 000)

Parameter	Description
mktBps	Basis points sent to the beneficiary (or vault). Must be > 0 if using a Vault Factory
deflationBps	Basis points burned.
dividendBps	Basis points routed to the dividend contract.
lpBps	Basis points added as LP (sent to dead address).

Constraint: mktBps + deflationBps + dividendBps + lpBps == 10000

Typical simple configuration: mktBps = 10000, all others = 0.

Other fields

Parameter	Type	Notes
minimumShareBalance	uint256	Minimum token balance required to be eligible for dividends. Set 0 if dividendBps == 0.
beneficiary	address	Address that receives mktBps revenue. Only for tax token without vault. When using a vault, the vault contract is set automatically as beneficiary.

Summary checklist

Before proceeding, confirm:

• buyTaxRate and sellTaxRate are not both zero and do not exceed 1000 (10%).

• taxDuration >= 365 days (31 536 000 seconds).

• antiFarmerDuration >= 1 day (86 400 seconds).

• mktBps + deflationBps + dividendBps + lpBps == 10000.

• mktBps > 0 if using a Vault Factory.

• beneficiary must be non-zero address, by default set to your EVM address if launching a tax token without vault.