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Key Tax Deadlines for December 2025

This December, it's pivotal for individual taxpayers to engage in various tax-related activities, including year-end strategy formation, tip income reporting, IRA distributions, and ensuring deductible expenses are settled before ringing in the new year.

December 1 - Commence Year-End Tax Strategy

December marks the period for assessing and implementing critical actions impacting your 2025 tax liabilities. Those experiencing significant income fluctuations, changes in familial circumstances, or who have transacted in properties need to schedule a strategic tax consultation to ensure optimized tax outcomes.

December 10 - Mandatory Tip Income Reporting

Employees earning over $20 in tips for November must report this income to employers using IRS Form 4070 by December 10. Employers, in turn, must withhold applicable FICA and income taxes from regular payroll. Insufficient regular earnings to cover tax liabilities will result in these amounts being noted in box 8 of your W-2 form, obligating payment of the uncollected taxes with your annual return.

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December 31 - IRA Withdrawal Deadline

Ensure Traditional IRA withdrawals are completed by December 31 to avoid penalty fees if you were born before January 1, 1952. Individuals reaching 73 in 2025 may delay withdrawals until April 1, 2026. If financial institutions will not be operational on the 31st, pre-arrange withdrawals.

December 31 - Deadline to Pay Deductible Expenses

December 31 also serves as the last day to settle deductible expenses for the 2025 fiscal year, excluding contributions to IRAs, SEPs, or Keoghs as these can extend beyond the year's end.

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December 31 - Preparing for Year-End Financial Closures

If intended financial transactions cannot be finalized on December 31, initiate actions in advance as banks and other institutions may be closed. This proactive step is crucial to ensure deadlines are met.

Weekend & Holiday Adjustments:

In cases where a deadline lands on a weekend or legal holiday, compliance is extended to the subsequent business day not classified as a holiday.

Disaster Relief Deadline Extensions:

Areas declared disaster zones receive filing extensions. Verify current designations through FEMA's disaster declarations or the IRS's disaster tax relief information.

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