The option to withhold taxes at a higher single rate, even when married, has been a valuable tool for taxpayers seeking control over their tax withholding. It allowed couples to avoid under-withholding and potential penalties by choosing a more conservative approach to meet annual tax obligations.
Where the Higher Single Rate Option Went
The Tax Cuts and Jobs Act (TCJA) of 2017 reshaped tax brackets and standard deductions, reducing the practicality of the higher single rate option. In response, the IRS updated withholding tables to align with these changes. In 2020, the redesigned Form W-4 eliminated the need for allowances and shifted to entries for filing status, multiple jobs, credits, other income, deductions, and an optional extra amount per paycheck. 1Internal Revenue Service. Internal Revenue Bulletin 2020-10
Checking Step 2(c) now applies higher withholding rate tables, which for many two-job couples produces a similar result to the former “Married, but withhold at higher Single rate” box.
Effects on Tax Liabilities
The removal of the higher single rate option has implications for tax liabilities, particularly for married couples. Taxpayers must now use the redesigned Form W-4 to align withholding with their actual tax responsibilities. This requires a clear understanding of income, deductions, and credits. Married couples who previously depended on the higher single rate must explore alternative strategies, such as specifying additional withholding amounts or making estimated tax payments. These methods demand careful planning to ensure all income streams, including dividends and interest, are accounted for accurately.
The IRS provides worksheets and instructions to help taxpayers project their tax liabilities. However, errors in calculation can result in underpayment penalties, which are based on the federal short-term interest rate plus three percentage points. 2GovInfo. 26 U.S.C. § 6621 – Determination of Rate of Interest Staying updated on current rates and IRS guidelines is essential to avoid penalties.
Adjusting Your W-4 for Desired Withholding
Filling out the redesigned Form W-4 requires a strategic approach to ensure withholding matches your financial situation. Reviewing all income sources and potential changes in deductions or credits is critical. The accuracy of your withholding depends on the precision of the information provided. Additional income from multiple jobs or freelance work can significantly impact tax liability, making it important to calculate withholding carefully. The IRS offers worksheets to assist in this process.
The W-4 allows for specific dollar adjustments, enabling taxpayers to fine-tune withholding to meet their projected tax obligations by entering an additional amount to withhold each pay period in Step 4(c). 3Internal Revenue Service. Publication 15 (2025), Employer’s Tax Guide Consulting a tax professional can provide valuable guidance, particularly after major life changes, such as marriage, divorce, or the birth of a child, which may require adjustments to your withholding strategy.