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.
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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Legend: IRS / Federal deadline | Maryland deadline
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.