June 2026 IRS & Maryland Tax Deadlines: What Individuals, Small Businesses, and Employers Need to Know
June can look quiet on the calendar, but it still includes important IRS and Maryland deadlines for estimated taxes, payroll deposits, withholding, and sales tax. This guide highlights the June 2026 dates most likely to matter for Maryland households, small businesses, and employers—and explains what to do before summer distractions turn into penalties.
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Why June deadlines are easy to miss
By June, many taxpayers feel like filing season is behind them. Summer schedules start filling up, vacations begin, and business owners often turn their attention back to operations.
That is exactly why June deadlines get missed. They are not always dramatic, but they still affect cash flow, payroll compliance, and penalty exposure. For some readers, June is the month to make an estimated tax payment. For others, it is about payroll deposits, Maryland withholding, or sales tax filings that keep recurring even when the office feels less hectic.
The good news is that June is manageable when you know which deadlines actually apply to you.
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June 2026 Calendar (IRS and Maryland Deadlines that may apply)
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Legend: IRS / Federal deadline | Maryland deadline
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Applicability note: Not every item applies to every filer. Some deadlines depend on filing frequency (monthly, quarterly, annual, or accelerated), entity type, or whether a specific tax account is active.
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Recurring rules to watch throughout May: Maryland accelerated withholding generally applies within three business days after payroll for employers that meet the state threshold. Federal payroll deposits can also trigger the next-day deposit rule if accumulated employment taxes reach $100,000 on any day during a deposit period. Maryland may require zero returns in some cases even when no tax is due, and monthly or quarterly filing frequency for withholding and sales tax should match the account setup in Maryland Tax Connect. Not every deadline applies to every filer; applicability depends on entity type, filing frequency, and whether the tax account is active.
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🏦Key IRS Deadlines in May 2026 Explained
June is a key tax month for individuals, small businesses, employers, and fiduciaries. Instead of big annual return deadlines, the focus is on mid-month estimated-tax payments, payroll deposits, and Maryland business filings. Missing these can quickly trigger penalties and interest, but June is manageable if you know which items apply to you and track them clearly.
For most taxpayers, June revolves around three areas: estimated taxes, payroll compliance, and Maryland filings. Many self-employed individuals or those with under-withheld income owe a second-quarter estimated payment by June 15. Employers may have recurring federal payroll deposits plus Maryland monthly withholding. Maryland sales tax filers must also watch the June due date for May collections. Trusts, estates, corporations, and pass-through entities may face additional June estimated-payment deadlines as well.
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June 3, 5, 10, 12, 17, 19, 24, and 26 — Semiweekly federal payroll deposits
Who this generally affects:- Employers on the semiweekly deposit schedule.
- Businesses that withhold federal income tax and Social Security and Medicare taxes from wages and deposit them through EFTPS.
What is due: These are the recurring June deposit dates for employers whose payroll schedule places them on the semiweekly system. In practical terms, June is not one payroll-tax deadline—it is a series of deadlines tied to when wages were paid.
How to handle it: Confirm whether your business is a monthly or semiweekly depositor. - Make sure running payroll and scheduling the tax deposit are both happening.
- Pay extra attention to off-cycle payroll, bonuses, or seasonal staffing changes.
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June 10, 2026 — May tip reporting to employers
Who this affects:- Employees who received $20 or more in tips during May.
- Employers who need those tip reports for payroll and withholding purposes.
What is due: Tipped employees generally must report May tip income to their employer by June 10. -
Why it matters: Tip reporting affects payroll records, withholding, and year-end tax forms. Businesses with restaurant, hospitality, delivery, salon, or similar service operations should not let this become an afterthought. -
June 15, 2026 — Second 2026 estimated tax payment
Who this affects:- Self-employed individuals.
- Taxpayers with investment, rental, retirement, or side-income not fully covered by withholding.
- Households that owed at filing time and want to avoid repeating the same surprise next spring.
What is due: The second installment of 2026 federal estimated tax is due on Monday, June 15. Many taxpayers use Form 1040-ES as the worksheet and payment reference point. -
Practical reminder: This is a good time to use real year-to-date income rather than guessing. If income is running higher or lower than expected, June is often the first meaningful checkpoint to adjust. -
June 15, 2026 — Monthly federal payroll deposit for May wages
Who this affects:- Employers on the monthly federal deposit schedule.
What is due: Federal income tax withheld from wages, plus the employer and employee shares of Social Security and Medicare taxes for wages paid in May 2026.
How to pay: Through EFTPS or an authorized payroll provider. -
🏦Key Maryland deadlines in June 2026
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June 15, 2026 — Maryland monthly withholding return and payment for May
- Who this generally affects:
- Maryland employers on a monthly withholding filing schedule.
What is due: The Maryland withholding return and payment for tax withheld from employee wages in May 2026.
How to file and pay: Most employers use Maryland Tax Connect. -
Recommendation: If payroll happened, do not assume the state filing took care of itself just because payroll was run. June is a good month to verify that both the return and payment were handled.
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Within three business days after payroll — Maryland accelerated withholding deposits
- Who this affects:
- Employers subject to Maryland’s accelerated withholding rules.
What is required: If your business falls into Maryland’s accelerated-filer category, the deadline is much faster than the standard monthly schedule. Deposits are generally due within three business days after the payroll date.
This tends to matter most for larger or growing payrolls, especially when hiring picks up for summer. -
June 22, 2026 — Maryland sales and use tax return and payment for May
- Who this affects:
- Businesses required to collect and remit Maryland sales and use tax.
What is due: Monthly filers generally owe the return and payment for May 2026 on the 20th day of the following month. Because June 20, 2026 falls on a Saturday, the practical due date rolls to Monday, June 22.
Why it matters: Sales tax is money collected on the state’s behalf, not extra operating cash. Businesses that get busy in late spring and early summer can feel squeezed if they have not kept those funds set aside. -
How to decide which deadlines apply to you
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📌 If you are an individual taxpayer
June may apply to you if you:- • are self-employed,
- • have side income,
- • receive investment or rental income,
- • took retirement distributions,
- • or owed more than expected at filing time.
📌 If you own a small business
Focus on:- • June 15 estimated taxes if business income flows through to you personally,
- • payroll deposits,
- • Maryland withholding,
- • and Maryland sales tax if you collect it.
📌 If you run payroll as an employer
Make sure you know:- • whether you are a monthly or semiweekly federal depositor,
- • whether Maryland accelerated withholding rules apply,
- • and who is actually responsible for each payment and filing.
A simple June checklist
- ✅Confirm whether you owe a June 15 estimated tax payment.
- ✅Review federal payroll deposit frequency before running payroll.
- ✅Check Maryland Tax Connect for withholding and sales tax obligations.
- ✅Set aside sales tax funds now, not the day before the deadline.
- ✅Handle filings early so a summer schedule or staff absence does not create a last-minute problem.
June deadlines may look smaller than April deadlines, but they still deserve attention. Reach out to AllTax, and we will help you stay organized, protect cash flow, and keep summer from turning into a penalty season. -
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