Documents Needed for Maryland Estate Tax Return Prep

Filing a Maryland estate tax return can feel overwhelming if you don’t know what papers to pull together. The Maryland Comptroller requires specific documents to verify the value of the estate and any deductions. Without the right records, you risk delays, audits, or even penalties. This article walks you through exactly what documents you need, why they matter, and how to avoid common mistakes.

What documents are required for the Maryland estate tax return?

The main document is the Maryland Estate Tax Return (Form MET-1), but you can’t fill it out without supporting paperwork. Here’s a straightforward list of what you’ll need:

Certified death certificate – You’ll need several copies, but at least one certified version for the filing.
Last will and testament – Include any codicils (amendments). The comptroller wants to see who inherits what.
Inventory of all assets – This covers bank accounts, investment accounts, real estate, vehicles, life insurance policies (if the estate is the beneficiary), retirement accounts, business interests, and personal property.
Valuation reports – For real estate, get an appraisal dated within six months of death. For stocks and bonds, use the date-of-death market values. For closely held businesses, you’ll need a professional valuation.
Deduction backup – Receipts for funeral expenses, estate administration costs (attorney fees, executor fees, appraisal fees), debts owed by the deceased, and any charitable bequests.
Previous gift tax returns – If the deceased made large gifts during life, the Maryland return may need to account for them.
Federal estate tax return (Form 706) – Even if the estate is small enough to skip the federal return, you may still need to file Maryland’s return. If you do file Form 706, attach a copy.

For a more detailed breakdown, see our document inventory guide for executors. It lists every item you should collect.

How do I organize documents for Maryland estate tax filing?

Trying to sort through a deceased person’s records can be chaotic. The best approach is to group documents by category: assets, deductions, legal papers, and tax forms. Use a physical folder or a cloud-based folder for each category.

One tip: create a spreadsheet listing each asset, its estimated value, the valuation source (appraisal, statement, etc.), and the date of valuation. This makes it much easier to spot missing items.

We have a detailed organization timeline for Maryland estate tax documents that shows what to gather month by month. Following a timeline helps you avoid last-minute scrambling.

What are common mistakes when gathering documents for Maryland estate tax?

Even experienced executors slip up on a few things:

Not proving valuations – A handwritten estimate of a house value won’t hold up. The comptroller expects a formal appraisal or a broker’s opinion of value backed by market data. Our article on proof of valuation support explains what qualifies.
Forgetting about personal property – Jewelry, art, antiques, and collections count. If they are valuable, get an appraisal.
Missing deductions – The estate can deduct funeral costs, probate fees, and debts like mortgages or credit cards. But you need receipts or canceled checks.
Ignoring the six-month rule for real estate – The appraisal must reflect the value on the date of death, but you can use a sale within six months as the value. If you sell the property within six months, use that sale price. If not, get an appraisal that looks back to the date of death.
Assuming no return is needed – Maryland’s estate tax exemption is different from the federal level. Even if the estate is under the federal threshold, check Maryland’s current exemption amount. You still may need to file if the gross estate exceeds that amount.

What forms do I need to file the Maryland estate tax return?

The primary form is Form MET-1 and its schedules. You’ll also need:

Schedule A – Real estate
Schedule B – Stocks and bonds
Schedule C – Mortgages, notes, and cash
Schedule D – Insurance on the decedent’s life
Schedule E – Jointly owned property
Schedule F – Other miscellaneous property
Schedule G – Transfers during life
Schedule K – Deductions
Schedule O – Charitable deduction

If the estate is taxable at the federal level, you’ll also attach a copy of Form 706. For a full list of required forms and where to get them, check our breakdown of estate settlement tax forms required by the Comptroller.

How can I create a document inventory as an executor?

Start by making a master list of every document you have and every one you still need. Use a checklist that includes the items mentioned above. For each asset, track whether you have the valuation proof, the ownership document, and a date-of-death statement.

Our document inventory for executors provides a printable template you can adapt. It covers everything from real estate deeds to digital asset passwords.

Also, keep a log of correspondence with appraisers, accountants, and the comptroller’s office. This helps if there’s a question later about when you submitted something.

Practical next steps

Order at least one certified copy of the death certificate as soon as possible.
Contact all banks, brokers, and financial institutions for account statements as of the date of death.
Hire a licensed appraiser for real estate and any valuable personal property.
Gather receipts for funeral costs, legal fees, and any debts paid from the estate.
Check the Maryland Comptroller’s website for the current estate tax exemption and forms (external link: Maryland Comptroller Estate Tax).
Review the documents you have against the checklist in our inventory article. Identify gaps early so you have time to request missing records.

One final piece of advice: don’t rush. The Maryland estate tax return is due nine months after the date of death, but you can request a six-month extension. Use that time to get every document right. A complete, well-organized filing saves headaches down the road.