Historic tax credits in North Carolina are split by how the property is used, and administered by the State Historic Preservation Office (SHPO). Martin County's two older towns — Hamilton and Williamston — both carry potential historic district status, and Martin's state economic-distress ranking adds a bonus that most buyers researching the standard credit rates won't know applies here.
The core distinction: owner-occupied vs. income-producing
| Element | Owner-Occupied | Income-Producing |
|---|---|---|
| NC state credit | 15% flat | 15% to $10M, then 10% to $20M |
| Federal credit | None | 20% (over 5 years) |
| Martin County Tier 1 bonus | Not applicable | +5% on top of standard rate |
| Minimum rehab spend | $10,000 in 24 months | Greater of adjusted basis or $5,000 in 24 months |
| Reviewing agency | NC SHPO | NC SHPO + National Park Service |
| Standard reviewed against | Secretary of the Interior's Standards | Secretary of the Interior's Standards |
The Tier 1 bonus — specific to Martin County
North Carolina ranks all 100 counties annually by economic distress into three tiers, with Tier 1 being the most distressed. Martin County is state-designated Tier 1. That designation adds a 5% bonus to the income-producing historic tax credit, on top of the standard 15%/10% state rates above. This bonus does not apply to the owner-occupied credit, which is a flat 15% regardless of tier.
The owner-occupied 15% credit
- What you get: a 15% North Carolina income-tax credit on qualified rehabilitation expenses. No federal credit for owner-occupied homes.
- Minimum spend: more than $10,000 in qualified rehab within any 24-month period.
- Qualification: the home must be listed in the National Register, individually or as a contributing building in a historic district.
- Standards: all work is reviewed by SHPO against the Secretary of the Interior's Standards for Rehabilitation. Consult SHPO before starting work.
- Process: a two-part SHPO application — Part A describes planned work, Part B certifies completed work. Claim the credit the year the project is placed in service; unused credit carries forward up to nine years.
The income-producing stack
- Federal 20% credit on qualified rehab of an income-producing certified historic structure, claimed over a minimum five-year period.
- NC state credit: 15% up to $10M in qualified expenses, then 10% from $10M to $20M — plus the +5% Tier 1 bonus for Martin County properties.
- Substantial-rehab test: expenses must exceed the greater of the building's adjusted basis or $5,000 within 24 months.
- Cap: the state credit is capped at $4.5M per project.
Local review vs. the tax credit
If Williamston or Hamilton has a local historic district commission with Certificate of Appropriateness (COA) authority, that's a separate approval from SHPO/tax-credit certification. A property can be subject to a local COA process and separately qualify for the tax credit through its National Register status; plan for both if applicable.
FAQs
Are Hamilton and Williamston listed on the National Register?
Both have potential historic district status. Check HPOWeb (NC's historic property search, at gis.ncdcr.gov) for the specific address to confirm eligibility.
What does Martin's Tier 1 designation mean for the credit?
North Carolina ranks all 100 counties annually by economic distress into three tiers; Tier 1 counties are the most economically distressed. Martin County is state-designated Tier 1, which adds a 5% bonus on top of the standard income-producing historic tax credit rate — on top of the standard rates described below.
Do I get the 20% federal credit if I live in the home?
No. The federal 20% credit applies only to income-producing certified historic structures. If you live in the home, you qualify for North Carolina's 15% owner-occupied credit instead — not the federal credit.
Is this tax advice?
No. Historic tax credit rules, rates, and bonuses are set by SHPO, the NC Department of Revenue, and the IRS/NPS, and they change.
Considering a historic property in Hamilton or Williamston?
Travis can help confirm National Register status and scope a Standards-compliant rehab plan before you rely on the credit.
This page is for informational purposes only and does not constitute legal or tax advice. Historic tax credit eligibility, rates, bonuses, and National Register status are governed by SHPO, the NC Department of Revenue, and the National Park Service/IRS, and are subject to change.