I don't think my VA tax return is correct, it it showing a refund of all the tax i paid in 2018. Is that possible?

[PhyllisG]

Yes. It is possible that you could receive all of your refund if your net income including all your deductions and credits was less than your tax liability. 

Tax liability means the amount that you were expected to pay during the year.  For example, your yearly payroll statement reflects state taxes of $9,000 withheld from your pay. After calculating your taxable income, your tax liability equal -0- because your taxable income is -0-. You will receive all of the $9,000 that was deducted from your pay because enough was paid during the year according to your filing status.