Essential June 2025 Tax Deadlines for Individuals: What Accountants and Taxpayers Need to Know

Maintaining tax compliance and managing deadlines is critical for every individual taxpayer—especially as regulatory complexities and penalty risks continue to rise. As June 2025 approaches, it’s vital for individuals and accounting professionals to be prepared for several key due dates, including requirements for IRAs, reporting of tip income, estimated tax payments, and special rules affecting U.S. citizens abroad and military personnel in combat zones.
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June 2 – Final Due Date for IRA Trustees to Issue Form 5498

Form 5498 is a vital tax document that informs IRA holders of the fair market value (FMV) of their IRAs as of December 31, 2024. This data is used to calculate required minimum distributions (RMDs) for individuals age 73 or older in 2025. Advisors and clients should confirm receipt and accuracy of this form promptly to avoid complications with RMD compliance, which can result in significant excise taxes.

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June 10 – Deadline to Report Tip Income to Employers

Employees who received more than $20 in tips during May must report these tips to their employer using IRS Form 4070 by June 10. Employers are responsible for withholding both FICA and federal income tax on these tip amounts. Insufficient regular wages to cover this liability means uncollected tax will be noted in box 8 of your W-2. Taxpayers are required to reconcile and pay any shortfall when filing their annual return.

June 16 – Second Quarter Estimated Tax Payment Due (2025)

June 16 marks the due date for making your second quarterly estimated tax payment for the 2025 tax year. In our pay-as-you-earn tax system, individuals with untaxed income—such as self-employment, investment, or rental income—must make timely estimated tax payments to avoid IRS underpayment penalties. Image 1

  • Employees: Payroll withholding satisfies this obligation.
  • Retirees: Pension withholding may apply.
  • Others: Use estimated payments for income not subject to withholding.

If you fail to prepay enough (safe harbor amounts), you may incur penalties—generally calculated as the federal short-term rate plus 3%, on a quarterly basis. There are two primary safe harbors:

  • 90% of current-year tax liability: Prepay 90% or more via withholding and/or estimated payments.
  • 100% prior-year tax liability (110% if AGI exceeds $150,000 [$75,000 if MFS]): Pay at least this amount to avoid penalty.

Example: If your 2025 tax is $10,000 and you prepay only $5,600, you miss the 90% threshold. However, if your 2024 tax was $5,000, paying $5,600 means you surpass the 110% mark and avoid penalty under this alternative safe harbor.

Estimated tax errors often result from events like asset sales or lump-sum bonuses. CPAs recommend clients proactively adjust their estimates when income rises unexpectedly. Timely payments are essential to meet safe harbor requirements.

State Variations: Rules for de minimis amounts, safe harbor thresholds, and due dates may differ at the state level. Consult a local tax professional for state-specific guidance.

June 16 – Filing Deadline for Taxpayers Abroad

U.S. citizens or resident aliens living and working outside the U.S. (including those on qualified military duty) must file their 2024 tax return and remit payment by June 16, 2025. If an extension is needed, submit Form 4868 for an additional four months (to October 15)—but remember, the extension only applies to filing, not payment. Taxes owed after June 16 will accrue failure-to-pay penalties and interest.

Combat Zone and Contingency Operation Extensions

Military personnel serving in combat zones or contingency operations benefit from an automatic filing extension: 180 days from the last day in the zone or upon qualifying hospitalization, plus any unused time to file when entering the zone. This relief is designed to ease compliance for our armed forces but does not eliminate underlying tax liability.

Avoid delaying your filing solely due to tax owing. The late filing penalty is 5% per month (up to 25%), which can be substantial. Tax professionals can help establish IRS installment agreements—spreading payments over up to six years and minimizing financial strain.

Holidays and Disaster Relief Extensions

If a due date lands on a weekend or legal holiday, it rolls automatically to the next business day. When disasters strike, the IRS and FEMA frequently extend tax deadlines for affected areas. For up-to-date disaster declarations and tax relief, refer to the following sources:

Staying organized and informed ensures stress-free compliance and financial peace of mind for you and your clients. Contact our office for tailored advice on your June 2025 tax obligations and proactive tax planning strategies.

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