In Texas, your final paycheck is due within six days if you are fired, and next scheduled payday if you quit.
Final paycheck deadline in Texas
What your final pay must include
Your final paycheck must include all the wages you earned through your last day. Whether it also has to include unused vacation depends on your state and your employer's policy, some states treat accrued vacation as wages that must be paid out. See Texas PTO payout rules. If an employer misses the deadline, many states add penalties. This is general information, not legal advice.