# On-chain Tax Calculator

Since tax and discounts are based on supply and market momentum and can fluctuate (though taxes generally decrease due to time accumulation), we provide two on-chain calculator functions in the smart contracts that support:

Next, let's explore the transaction options. OWY offers various options that can be combined to optimize your transaction strategy.

1. Current on-chain data input: allows you to see, in real time, the tax value of the transaction by simply entering the transfer amount and transaction options.
2. Custom data input:  allows you to evaluate potential tax value in a custom environment. Although it requires more inputs for the calculation, it is highly beneficial for decision planning.

{% hint style="info" %}
We will publish both the contract functions for the on-chain calculator and the user interface (UI) to the community once they are available. Stay tuned!
{% endhint %}
