A tipper contract used by a tg bot with tax included while transfering

tipper.py

total_balance: uint256
tax_address: address
tax: uint256

event Tip:
    sender: indexed(address)
    to: indexed(address)
    amount: uint256
    tax: uint256


@external
def __init__(tax_address: address, tax: uint256):
    self.total_balance = 0
    self.tax_address = tax_address
    self.tax = tax

@external
@view
def getTaxWallet() -> address:
    return self.tax_address

@external
@view
def getTotalBalance() -> uint256:
    return self.total_balance

@external
@payable
def sendETH(to_address: address):
    fee: uint256 = msg.value * self.tax / 100

    send(self.tax_address, fee)
    send(to_address, msg.value - fee)

    log Tip(msg.sender, to_address, msg.value, fee)
    self.total_balance+=msg.value