The IRS requires you to pay your tax throughout the year. An employee should have enough tax withheld to cover 90% of their tax liability or 100% ( 110% if income exceeds 150K) of their previous years liability. Self employed persons are required to make quarterly estimated tax payments.
You must have received these vouchers as you had an amount due and did not meet the above thresholds.
To answer your question, yes you can submit a new W4 to your spouse's employer and increase the amount of tax withheld.
Here is the link to our W4 calculator where you can estimate the amount of tax you should have withheld or opt to have an additional amount held each pay. W-4 Calculator
Mary, tax expert
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