why may tax rate increased to 15.8% for $43,545 taxable income while it was only 11% for $43,426 in 2023 ?

If your effective tax rate increased from 11% to 15.8% despite having similar taxable income from $43,426 to $43,545, it could be due to multiple reasons including but not limited to:

1. Changes in the tax tables: Tax brackets are adjusted annually, which can affect your tax rate.
2. Your deductions or credits might have been higher or lower compared to the previous year.
3. Changes in the types of income (e.g., capital gains vs. earned income) can impact your tax rate.

To understand the increase, you can compare both returns on the tax summary page in TurboTax. Here’s how:

1. Log in to TurboTax and continue your return
2. Go to the right side and click on Tax Tools.
3. Select Tools, then choose  View Tax Summary.

Focus on comparing deductions, credits, and income sources. Also, review the IRS tax rate tables to understand the changes in tax brackets.