MD Property Tax Incentive

Howard County - High Performance and Green Building Property Tax Credit

Administered by Howard County Government

AI summary · 7/12/2026

Howard County offers property tax credits for high-performance and green buildings: the High Performance Building Tax Credit (for LEED-certified or equivalent buildings, ranging from 10-100% of property tax depending on certification level and duration of 3-5 years) and the Green Buildings Tax Credit (14-20% of energy conservation device costs like solar or geothermal systems for 3 years). For residential R-2 and R-3 buildings, credits are capped at $5,000 per unit annually and decline in successive years, while credits for other building types have no specified maximum. To qualify, your building must achieve LEED certification (or equivalent standard recognized by Howard County inspections) and you apply through the Howard County Department of Finance.

You can help customers achieve valuable property tax credits by designing and installing high-performance buildings or energy conservation devices that meet LEED standards or comparable metrics (ICC-700 National Green Building Standard Silver level or Green Neighborhood Score of 136+). The High Performance Building Tax Credit rewards LEED Core and Shell, Existing Building, or Homes certification (Platinum down to Silver/Certified levels) with credits worth 10-100% of property tax over 3-5 years; the separate Green Buildings Tax Credit provides 14-20% of qualified energy device costs (solar, geothermal, etc.) over 3 years for LEED-certified structures. Ensure your projects meet Howard County's green building standards and guide clients to the Department of Finance for credit applications, as credits remain attached to the property across ownership changes.

Howard County's two programs use LEED and equivalent standards (ICC-700 National Green Building Standard, Green Neighborhood Score) to incentivize high-performance construction and retrofits. The High Performance Building Tax Credit (effective 2008, updated 2009 and 2011) covers new and existing commercial, multifamily, and residential (R-2/R-3) buildings with credits of 10-100% of property tax for 3-5 years depending on certification level, capped at $5,000 annually for residential units. The Green Buildings Tax Credit (in place since 2002) provides 14-20% of energy conservation device costs for qualifying heating, cooling, or hot water systems in LEED buildings for 3 years, available only to properties ineligible for the High Performance credit. The Department of Finance administers both programs and may adopt guidelines as needed; credits are property-attached and not affected by ownership changes.

Program details

Program ID
3559
Last updated
11/20/2024

Eligibility

Sectors
commercial residential multifamily residential
Technologies
solar - passive solar water heat solar space heat solar photovoltaics wind (all) biomass geothermal heat pumps daylighting wind (small) hydroelectric (small) comprehensive measures/whole building

Program summary

The state of Maryland permits local governments (Md Code: Property Tax § 9-242) to offer property tax credits for high performance buildings and energy conservation devices (Md Code: Property Tax § 9-203) if they choose to do so. Howard County has exercised this option by offering property tax credits for new and existing multi-family residential and commercial buildings that meet certain high performance building standards, and for the installation of energy conservation devices in LEED-certified structures. The property tax credit for energy conservation devices in green buildings (the Green Building Tax Credit) was initially enacted in 2002, while the High Performance Building Tax Credit was enacted in 2007 (effective beginning in July 2008). Minor amendments were made in 2009 to update the High Performance Buildings Tax Credit to reflect current green building standards. More substantive amendments were made in December 2011 to extend the property tax credit to residential structures classified as R-2 or R-3 under the Howard County Building Code, effective for tax years beginning after June 30, 2012 and extending through June 30, 2023.

High Performance Buildings Tax Credit
This tax credit generally uses the U.S. Green Building Council's LEED rating system as a metric for determining how "green"' a building is, although buildings that achieve comparable ratings under other green building standards are also eligible for the tax credit. Tax credits are available for buildings that achieve minimum ratings under the 2009 LEED Core and Shell (CS), Existing Building (EB) or LEED for Homes categories (R-2 and R-3 buildings), or that meet a comparable standard adopted by the director of inspections, licenses and permits. The amount and term of the tax credit varies based on the type project, the rating it achieves, and in the case of R-2 and R-3 buildings declines in successive years, as detailed in the table below.

Certification Type Amount Term
2009 LEED-CS Platinum 75% 5 years
2009 LEED-CS Gold 50% 5 years
2009 LEED-CS Silver 25% 5 years
2009 LEED-EB Platinum 50% 3 years
2009 LEED-EB-Gold 25% 3 years
2009 LEED-EB Silver 10% 3 years
LEED for Homes Platinum Y1: 100%; Y2: 75%; Y3: 50%; Y4: 25% 4 years
LEED for Homes Gold Y1: 90%; Y2: 68%; Y3: 45%; Y4: 23% 4 years
LEED for Homes Silver Y1: 75%; Y2: 56%; Y3: 38%; Y4: 19% 4 years

Tax credits claimed under this program remain attached to the property and are not affected by any change in building ownership. The program is administered by the Howard County Department of Finance. Credits for R-2 and R-3 buildings are limited to $5,000 per building or owner-occupied unit per fiscal year. No maximum credit limits are specified for other types of buildings. The Department of Finance is permitted adopt guidelines, regulations, or procedures to administer the program.

Green Buildings Tax Credit
A separate property tax credit is available for the installation of energy conservation devices that receive LEED credit and provide heating, cooling, or hot water in LEED-certified buildings. This credit, which may be claimed for three consecutive years, is only available to property owners that are not eligible for the high performance building property tax credit described above. The definition of energy conservation device includes but is not limited to solar and geothermal energy systems. The amount of the tax credit is determined as a percentage of the cost of a qualifying energy conservation device which varies based on the LEED certification level of the structure, as shown in the table below.

Certification Type
Credit Amount Term
LEED Certified 14% 3 years
LEED Silver 16% 3 years
LEED Gold 18% 3 years
LEED Platinum 20% 3 years

Equivalency

Comparable systems currently recognized by the Department of Inspections, Licenses and Permits are the silver certification level of the National Green Building Standard ICC-700 and the Green Neighborhood score of at least 136.

The equivalency is as follows:

LEED Level ICC 700 Level Green Neighborhood Score
Platinum Emerald 191 to 251 points
Gold Gold 164 to 190 points
Silver Silver 136 to 163 points

Contact & resources

Please verify current program details with the administering agency before making any financial decisions.

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