To find the tax due on a taxable income of $23,111 using the tax table provided, we'll follow these steps:

1. Identify the correct tax bracket for $23,111:

   • Since $23,111 falls between $15,000 and $30,000, the applicable tax rule is:
     $\text{Tax due} = \$375 + 6.3\% \text{ of the excess over } \$15,000$

2. Calculate the excess income over $15,000: $\text{Excess} = 23,111 - 15,000 = 8,111$

3. Calculate 6.3% of the excess: $\text{6.3\% of } 8,111 = 0.063 \times 8,111 = 511.003$

4. Add this to the base amount of $375: $\text{Tax due} = 375 + 511.003 = 886.003$

5. Rounding to the nearest cent (if necessary): $\text{Tax due} = 886.00$

Thus, the tax due on a taxable income of $23,111 is $886.00.

Would you like a detailed explanation of any step or have any questions? Here are some related questions you might find useful:

1. How would the tax due change if the taxable income was $35,000?
2. What would be the tax due for an income just below the $15,000 threshold, like $14,999?
3. How do you calculate the tax for an income of exactly $30,000?
4. Can you demonstrate the tax calculation for a higher income, like $50,000?
5. What if the tax rates or thresholds change? How would we adapt the calculation?

Tip: Always double-check the tax brackets and rates when calculating taxes, as they may change annually or based on jurisdiction.