By Scott Moran, Mae Valley Home Group
Your Howard County property tax bill is due Monday, September 30. If you pay through an escrow account with your mortgage servicer, this is largely handled for you — but it’s still worth understanding what you’re paying and whether you’re leaving money on the table.
A meaningful number of Maryland homeowners are. Here’s how the system actually works.
A note before we start: I’m a real estate agent, not a tax professional or an attorney. This is general information about how Maryland and Howard County property taxes are structured. For advice on your specific situation, talk to a CPA or contact the county directly.
The Basic Structure
Maryland’s fiscal year runs July 1 through June 30. Real property tax bills are issued around July 1 covering that full fiscal year.
You can pay the full amount by September 30. Owner-occupied residential properties also have the option of a semiannual schedule — first half due September 30, second half due December 31. Investment and commercial properties generally pay the full bill by September 30.
Late payments accrue interest, typically around 1% per month, plus penalties. Extended delinquency eventually leads to the county’s tax sale process, which is a situation you very much want to avoid.
How Your Assessment Works
Your bill is calculated from your property’s assessed value, determined by the Maryland State Department of Assessments and Taxation — SDAT, a state agency, not the county.
Maryland reassesses on a three-year cycle. Roughly a third of properties in each jurisdiction are reassessed annually, so your home’s value is formally reviewed every three years rather than every year.
When a reassessment increases your value, the increase phases in over the three-year cycle rather than hitting all at once. A 30% jump becomes roughly 10% per year for three years. Your tax is calculated on that phased-in value, not the full new assessment.
The Homestead Tax Credit — The One People Miss
This is the most important thing in this post.
The Homestead Tax Credit caps how much the taxable portion of your assessment can increase year over year on your principal residence. It doesn’t cap your market value. It caps how fast the taxed portion can climb.
Maryland state law limits this to 10% or less, and every county sets its own cap at or below that ceiling. Howard County’s cap is 5% — one of the more protective in the state. In a period of rising values, that difference compounds meaningfully.
Here’s the catch that costs people real money: the Homestead Tax Credit requires a one-time application with SDAT. It is not automatic. Legislation passed in 2007 requires homeowners to submit an application to establish eligibility.
New purchasers are generally mailed an application once the deed is recorded, but mail gets lost, people move during a chaotic period, and applications get set aside and forgotten. If you’ve never filed one, or you can’t remember whether you did, check your status through the SDAT portal using your property account number. The application is straightforward and can be filed online.
The deadline tracks the taxable year rather than the calendar — applications must be filed by April 1 of the taxable year to count for that year.
Other Credits Worth Checking
Howard County administers several additional credits beyond the state Homestead program, and eligibility requirements and deadlines vary.
The Homeowners’ Property Tax Credit is an income-tested state program that can meaningfully reduce bills for qualifying households. SDAT is accepting applications for 2026 through October 1.
Howard County offers a Senior Tax Credit with an application deadline of September 30, 2026, for tax year 2026, with a credit of up to $10,000 not to exceed the amount of county property tax owed. There are also credits related to aging in place, public safety officers, and volunteer service, each with its own rules, deadlines, and renewal requirements — some renew automatically and some emphatically do not.
Maryland also provides a full property tax exemption on the principal residence of veterans with a 100% permanent and total service-connected disability, along with certain surviving spouses. Given Fort Meade’s proximity and the size of the military and veteran population in this area, this is worth knowing about.
Check the Howard County Department of Finance tax credits page for current programs and deadlines, because these change.
If Your Assessment Seems Wrong
You have the right to appeal. The general process: file with the local Property Tax Assessment Appeal Board within 45 days of your assessment notice, request a hearing, and present evidence — typically comparable sales or an independent appraisal. The board issues a decision, which can be further appealed to the Maryland Tax Court and beyond.
The key is evidence. An appeal built on “this feels too high” doesn’t succeed. An appeal built on documented comparable sales showing your assessed value exceeds market reality has a real chance.
This is one place where a real estate agent is genuinely useful. If you think your assessment is off and you want to see what comparable sales actually support, I’m glad to pull that data for you. There’s no charge and no obligation — it takes me twenty minutes and it occasionally saves people a substantial amount.
If You Just Bought
Two things catch new buyers.
First, the bill may still reflect the previous owner’s credits, including their Homestead status, which doesn’t transfer to you. Your taxable assessment can jump after purchase in ways you didn’t anticipate from looking at the seller’s prior bill.
Second, compare the county bill against your closing documents and your mortgage escrow statement. Escrow estimates made at closing are sometimes based on the seller’s numbers rather than what you’ll actually owe, which produces an escrow shortage and a payment increase six or twelve months later. Catching this early is much better than being surprised.
Where to Go
Start with the Howard County Department of Finance for billing and payment. Use the SDAT Real Property Data Search for assessment and parcel records, and the SDAT site for credit programs and applications. Only enter payment information on official county pages.
If you have questions about how your assessment compares to actual market activity in your neighborhood, that’s squarely in my wheelhouse. Reach out anytime.
Equal Housing Opportunity: Scott Moran and Mae Valley Home Group comply with the Federal Fair Housing Act and Maryland fair housing law, which prohibit discrimination in the sale, rental, or financing of housing based on race, color, religion, sex, national origin, familial status, disability, marital status, sexual orientation, gender identity, or source of income.