FIRSTLY, as a waitress you may or may not have at the end of the year an amount on BOX 8 of your W-2, namely ALLOCATED TIPS which are subject to Federal Income Taxes, Social Security, and Medicare.
SECONDLY, a Married Person can file as either MARRIED FILING JOINTY or MARRIED FILING SEPARATELY.
Per IRS:
"If you are married, you and your spouse can choose to file a joint return. If you file jointly, you both must include all your income, deductions, and credits on that return. You can file a joint return even if one of you had no income or deductions." You may obtain more information by clicking on the following link:
Married Filing Jointly
LASTLY, make appropriate adjustments to your W-4 ( you may use a tax calculator) taking into account the taxes you have estimated that you may owe, if applicable. You will need the following:
