If you are single, over age 65 then your federal income tax amount will be approximately $6,700. The exact amount will depend on how much your pension was, the amount of your social security and whether the gain on the stock was long (over 1 year) or short.
If you are married and both over age 65 then the tax will be approximately $4,200.
I noticed in another post of yours that you provided the information detailed below. Based on this additional information your federal income taxes for 2008 will be approximately $6,357. This is based on the following information -
- You file jointly and you are both over age 65
- combined social security income = $23,000
- pension income = $9,800
- net short term (ST) gain = $8,500 ($10,000 ST gain - $1,500 ST loss)
- taxable income from surrender of annuity = $30,000