My resident is Texas but the timeshare is in Florida. I am currently not working but worked all of last year. I am retired military. Which tax bracket do I use?
It's not clear what you are asking. The federal taxes are the same in all states. Neither Texas or Florida have a state income tax so that is not an issue. Why are you asking?
No, you do not have to pay tax on the sale of the timeshare in either Florida nor Texas because neither of them have an income tax.
Your tax bracket is determined by the amount of income you made, less ant deductions. This will include any wages, but MAY include retirement pay.
I am selling my timeshare and I understand I have to pay a foreign sales tax and report the sales because the amount is in excess of $10,000. I don't know how to calculate the taxes on the sale or where to start looking.
You will have to ask the foreign country if you owe tax in that country.
In the US, you may owe capital gains tax if you sell property** for more than you paid for it, but if you receive less than you paid, you likely have a capital loss. Income from capital gains is taxable but losses on the sale of personal property are not deductible.
**Property includes real property (land plus attached buildings), tangible property (physical items) and intangible property (such as the right to use certain facilities for vacation). So it doesn't matter if you actually owned a share of real property or just the right to use the resort. The calculation of capital gains or losses is the same.