Serving as an executor in Maryland comes with significant responsibilities — especially when it comes to estate and trust tax obligations. Many executors in Frederick, Thurmont, Urbana, and surrounding communities are caught off guard by requirements they never knew existed. Understanding these obligations upfront can save time, money, and potential legal complications down the road. Our estate and trust tax team in Frederick works with families through this process every year.
Unlike many states, Maryland maintains its own estate tax separate from federal requirements. The Comptroller of Maryland requires estate tax returns for estates exceeding specific thresholds, and the rules can differ significantly from federal estate tax regulations.
Maryland's estate tax exemption is significantly lower than the federal exemption, meaning estates that owe nothing federally may still owe Maryland estate tax. This catches many executors off guard, particularly when dealing with properties in high-value areas like Frederick County, where real estate values have risen substantially.
Maryland also imposes an inheritance tax, which is separate from the estate tax. This tax depends on the relationship between the deceased and the beneficiaries, with different treatment for immediate family members (spouse, children, parents), siblings and other relatives, and non-family beneficiaries.
Maryland is the only state that imposes both an estate tax and a separate inheritance tax. The estate tax is administered by the Comptroller of Maryland; the inheritance tax is collected by the Register of Wills in the county where the estate is probated. Executors need to account for both — and the interaction between them is one of the most common places we see mistakes.
Maryland trusts must file annual returns if they have gross income of $600 or more, any taxable income regardless of amount, or Maryland source income. The complexity here is why working with a CPA experienced in trust tax preparation near Frederick matters — the rules are not intuitive.
| Trust Type | What It Means for Tax Filings |
|---|---|
| Revocable Trust | Generally no separate return during the grantor's lifetime — but it becomes irrevocable upon death, triggering new filing requirements |
| Irrevocable Trust | Typically requires annual returns and may be subject to compressed tax brackets, making professional preparation essential |
| Charitable Remainder Trust | Special reporting requirements and potential tax benefits that require expert handling |
Before any Maryland estate tax preparation can begin, executors must obtain an Employer Identification Number (EIN) from the IRS. This is required even for estates that won't owe taxes, as financial institutions need this number to transfer assets.
Maryland estate tax returns are generally due within nine months of death, though filing extensions may be available. Missing these deadlines can result in significant penalties — even if no tax is ultimately owed. This is one of the most common and costly errors we see.
A filing extension does not extend the payment due date. Interest accrues on any unpaid Maryland estate tax after the nine-month statutory deadline, even when an extension to file has been approved. If tax will be owed, the payment needs to go in on time regardless of when the return itself is filed.
Executors who haven't maintained proper documentation create serious problems down the road. Essential records include date-of-death valuations for all assets, income received by the estate, administrative expenses, and distribution records to beneficiaries. If the estate also involves business assets, our Fractional CFO services can help get the financial records in order before the tax work begins.
Frederick County's diverse real estate market — from historic downtown properties to rural farmland — requires specialized valuation expertise. The Maryland Department of Assessments and Taxation provides assessed values, but estate tax purposes often require professional appraisals that reflect fair market value at the date of death.
Determining exact investment portfolio values on the date of death can be complex, especially with mutual funds, privately held business interests, collectibles, personal property, and retirement accounts with beneficiary considerations — all of which have different valuation rules.
Federal estate tax returns (Form 706) are required for estates exceeding the federal exemption threshold. However, even estates below this threshold may benefit from filing to establish a stepped-up basis for inherited assets — a significant long-term income tax benefit for beneficiaries.
Maryland's estate tax calculation can be particularly complex when dealing with out-of-state property owned by Maryland residents, Maryland property owned by non-residents, generation-skipping transfer tax implications, and prior gift tax considerations. Proactive tax planning before death can significantly reduce exposure in all of these areas.
Estates including family businesses or professional practices require specialized estate tax preparation. Valuation discounts for lack of marketability or minority interests can significantly reduce tax liability, but these require professional documentation and defensible support.
Given Frederick County's agricultural heritage, many estates include farmland. Maryland offers special use valuation for agricultural property, which can substantially reduce estate tax liability when properly applied. This is an area where local expertise makes a real difference.
Trusts that generate income must file annual returns (Form 1041 federally, Form 504 in Maryland). These involve complex calculations around distributable net income (DNI), beneficiary distributions and their tax implications, accumulation distributions, and ongoing tax planning opportunities for future years.
Large trusts may need to make quarterly estimated tax payments. Missing these can result in penalties, making professional guidance essential for ongoing trust administration — not just at tax time.
Effective estate and trust tax preparation requires close coordination with estate attorneys and financial advisors. Our estate and trust CPAs in Frederick regularly work alongside local estate attorneys and financial advisors to ensure all aspects of administration are handled properly and in sync. Many estates include complex investment portfolios where distribution timing decisions have significant tax consequences — that coordination matters.
Maryland tax law changes frequently, and local professionals understand unique aspects of Frederick County estates that out-of-area firms simply don't: historic property considerations, agricultural use assessments, local business valuation factors, and relationships with regional estate planning attorneys. These aren't minor details — they can be worth thousands of dollars in tax savings.
You need professional estate and trust tax preparation if the estate includes business interests, multiple properties, or unusual assets. Multi-state complications — property or beneficiaries in multiple states — require specialized knowledge of interstate tax obligations. Large estates or those involving generation-skipping transfer tax or sophisticated estate planning techniques need experienced guidance. The cost of getting it wrong — penalties, interest, and lost basis step-up elections or charitable deduction opportunities — far exceeds the cost of professional help.
Distributions from estates and trusts often have income tax implications for the beneficiaries themselves. If family members receiving distributions also need help with their individual tax returns, we can coordinate everything under one roof — which makes the reporting much cleaner and reduces errors.
Estate and trust administration is often an emotionally difficult time for families. The last thing you need is to navigate complex Maryland tax law alone. At Mercer Flanagan, we begin with a thorough review of all estate assets, potential tax obligations, and filing requirements so executors understand exactly what's ahead. We provide ongoing support through the full administration period — quarterly filings, beneficiary distributions, and tax planning as opportunities arise.
Schedule a consultation and we'll walk through the estate's assets, tax obligations, and filing requirements — so you know exactly what's ahead. Or call us at 301-662-6992.
Schedule a ConsultationYes. Executors must obtain an Employer Identification Number from the IRS before administration can move forward — banks and brokerages require it to transfer assets, regardless of whether the estate will owe any tax.
Generally within nine months of the date of death. Filing extensions may be available, but an extension to file does not extend the time to pay — interest accrues on unpaid tax after the nine-month deadline.
Possibly. A trust must file if it has gross income of $600 or more, any taxable income regardless of amount, or Maryland source income. Many trustees are surprised by how low these thresholds are.
Often, yes. Distributions can carry income out to beneficiaries via Schedule K-1, which they report on their individual returns. Coordinating the estate or trust return and the beneficiaries' returns under one roof keeps the reporting consistent and reduces errors.
By Roy Cogliandolo, CPA · Mercer Flanagan · February 25, 2026
This article is for general informational purposes and reflects rules current as of 2026. Estate and trust tax thresholds and requirements are subject to change and depend on individual circumstances — confirm how they apply to your specific situation with your CPA.