After removing my dependent all the sudden I owe taxes, how come?

If the dependent qualified you as Head of Household it would reduce your standard deduction.

You can check your tax return

You can preview your tax return by going to:

1. On the menu bar on the left that shows.
2. Select Tax Tools
3. On the drop-down select Tools
   1. Tip: If you don't see the dropdown for Tools,
   2. Minimize the federal and state options using the down arrow.
4. On the popup menu
5. Select View Tax Summary
6. On the left sidebar
7. Select Preview my 1040.
8. Social Security is line 6 a & b
9. Standard deduction is line 12

The standard deduction amounts for 2024 are:

• $29,200 – Married Filing Jointly or Qualifying Surviving Spouse (increase of $1,500)
• $21,900 – Head of Household (increase of $1,100)
• $14,600 – Single or Married Filing Separately (increase of $750)

Taxpayers who are 65 and Older or are Blind

For 2024, the additional standard deduction amounts for taxpayers who are 65 and older or blind are:

• $1,950 for Single or Head of Household (increase of $100)
• $1,550 for married taxpayers or Qualifying Surviving Spouse (increase of $50)

Dependents

For 2024, the standard deduction amount for an individual who may be claimed as a dependent by another taxpayer cannot exceed the greater of (1) $1,300, or (2) the sum of $450 and the individual's earned income.