How do I properly fill out the W-4 form when married and filing jointly?

To properly fill out the W-4 form when married and filing jointly, both spouses should consider their total income, deductions, and credits. Each spouse can fill out their own W-4 form, or they can fill out a combined form together. It's important to accurately report all sources of income and claim the correct number of allowances to ensure the right amount of tax is withheld from your paychecks.