The tax benefits of owning a historic home fall into three practical buckets: state income tax credits for rehabilitation work, local property tax freezes or abatements after a restoration, and a federal income tax deduction if you donate a preservation easement on the property. The headline federal incentive — the 20% rehabilitation tax credit — is generally not one of them, because it applies only to income-producing buildings like rentals and commercial space, not to a home you live in yourself.1National Park Service. Eligibility Requirements Knowing which programs match your situation is the whole game.
Why the Federal 20% Credit Usually Doesn’t Help a Homeowner
Under Internal Revenue Code Section 47, owners of certified historic structures can claim a tax credit equal to 20% of qualified rehabilitation expenditures.2Internal Revenue Service. Rehabilitation Credit It’s a dollar-for-dollar reduction of taxes owed, which is far more valuable than a deduction. But the building must be used for income-producing purposes after rehabilitation: rental housing, commercial office space, retail, agricultural use. If you live in the home as your personal residence and don’t generate income from it, the federal credit is off the table.1National Park Service. Eligibility Requirements
A workaround exists for homeowners who convert part of the property to rental use, such as a carriage house apartment or a basement unit. The credit then applies only to the income-producing portion of the building, not to your personal living space. If most of the house is your residence, the credit shrinks accordingly.
Two other qualifying rules are worth knowing before you plan around this credit. The building must be individually listed on the National Register of Historic Places, or sit within a registered historic district and be certified by the Secretary of the Interior as contributing to that district’s significance.3Office of the Law Revision Counsel. 26 USC 170 – Section: (h)(4)(C) Simply owning an old house is not enough. And your rehabilitation expenses must exceed the greater of the building’s adjusted basis or $5,000, with all qualifying work completed within a 24-month window you select (60 months for phased projects with plans drawn up before work begins).4Office of the Law Revision Counsel. 26 US Code 47 – Rehabilitation Credit
State Historic Rehabilitation Credits for Owner-Occupants
This is where owner-occupants actually benefit. Because the federal credit excludes personal residences, state programs fill the gap. Roughly 35 states offer their own historic rehabilitation tax credits, and many of them explicitly cover owner-occupied homes. State credit rates commonly run between 20% and 25% of rehabilitation costs, though some programs cap the total dollar amount per project.
State programs generally require the home to be listed on a state or national register, or to contribute to a listed district. Most also require compliance with the Secretary of the Interior’s Standards for Rehabilitation, so the design constraints are similar to the federal program even when the money is coming from the state. Every state has a State Historic Preservation Office, and that office is the right first stop to confirm eligibility, credit rates, caps, and application timing in your jurisdiction.
Local Property Tax Freezes and Abatements
Local governments add another layer through property tax abatements or assessment freezes. These programs lock in the property’s pre-rehabilitation assessed value for a set number of years following an approved restoration, so a major renovation doesn’t automatically trigger a higher tax bill. Duration varies: some programs run four to five years with a gradual phase-up back to the full assessed value, while others freeze the assessment for a full decade.
Accessing these benefits usually requires the property to appear on a local, state, or national register of historic places, and you’ll typically need to apply before starting work. Participation comes with conditions. You agree to maintain the historic character of the building’s exterior for the duration of the tax benefit, and if you alter the structure in a way that violates preservation standards, the local authority can revoke the benefit and demand repayment. Some jurisdictions also offer low-interest loans or outright grants for specific repairs such as historic roofing, windows, or masonry.
The Preservation Easement Deduction
A preservation easement is one of the few federal-level tax benefits available to someone who lives in a historic home. Under IRC Section 170(h), you donate a permanent restriction on your property’s facade or surrounding land to a qualified preservation organization. You keep ownership and use of the home, but you give up the right to alter or demolish the protected features. In exchange, you claim a charitable deduction based on the difference between the property’s fair market value before and after the easement.5Office of the Law Revision Counsel. 26 USC 170 – Section: (h)
The restriction must be permanent. It runs with the land and binds every future owner. The receiving organization must be a qualified 501(c)(3) entity, typically a land trust or historic preservation nonprofit, with the resources to enforce the easement’s terms in perpetuity. The conservation purpose must fit one of the categories Congress defined, and preservation of a certified historic structure is explicitly included.6Office of the Law Revision Counsel. 26 USC 170 – Section: (h)(4)(A)
How the Deduction Is Sized and Claimed
The deduction amount depends on a qualified appraisal measuring how much the easement restriction reduces your property’s market value, and that figure varies widely based on the property and the scope of the restriction. You can deduct up to 50% of your adjusted gross income in a single tax year from a qualified conservation contribution, with any unused portion carrying forward for up to 15 years.7Office of the Law Revision Counsel. 26 USC 170 – Section: (b)(1)(E) Qualified farmers and ranchers can deduct up to 100% of AGI.
You must file IRS Form 8283 to report the noncash charitable contribution, and any easement valued above $5,000 requires a written qualified appraisal attached to the form.8Internal Revenue Service. Instructions for Form 8283 (Rev. December 2025) Failing to file the form or attach the appraisal results in the deduction being disallowed entirely. The appraiser must follow the Uniform Standards of Professional Appraisal Practice and understand the specific impact that preservation restrictions have on market value. This is specialized work, not a standard home appraisal.
Public Access and IRS Scrutiny
The IRS requires at least some visual public access to the historic structure. If the property isn’t visible from a public road, the easement terms must give the public regular opportunities to view it. The required level of access depends on the property’s historic significance, its location, and privacy concerns for anyone living there.9eCFR. 26 CFR 1.170A-14 – Qualified Conservation Contributions
Conservation easement deductions have drawn heavy IRS enforcement in recent years, particularly against syndicated transactions where partnerships claimed deductions far exceeding their investment. Congress responded through the SECURE 2.0 Act by adding a disallowance rule for donations exceeding 2.5 times the partners’ basis in a partnership, though individual historic preservation easements were carved out from that restriction, provided certain reporting requirements are met. Individual homeowners donating a facade easement on their own home sit in a different risk category than syndicated deals, but inflated appraisals remain the IRS’s primary target. The penalty for overstating the value of a charitable contribution can reach 40% to 50% of the resulting tax underpayment.10Office of the Law Revision Counsel. 26 US Code 6662 – Imposition of Accuracy-Related Penalty Get the appraisal right.
The Design Strings Attached
Every rehabilitation claiming the federal tax credit — and most state credits and local abatements — must comply with the Secretary of the Interior’s Standards for Rehabilitation, a set of ten principles the National Park Service uses to evaluate whether a project respects the building’s historic character.11National Park Service. The Secretary of the Interior’s Standards for Rehabilitation A few points routinely catch owners off guard:
- Deteriorated historic features must be repaired rather than replaced whenever repair is feasible, and any replacement must match the original in design, color, texture, and materials.12National Park Service. Evaluating Historic Windows for Repair or Replacement
- You cannot add architectural elements from other periods or invent features the building never had.
- New additions or alterations must be designed so they could later be removed without damaging the original building’s form and integrity.
- Harsh cleaning methods that damage historic materials, such as sandblasting, are prohibited.
Windows are the most contentious area in practice. The NPS starts from the position that historic windows should be repaired, even when property owners would rather install modern replacements for energy efficiency. Replacement requires photographic documentation proving the deterioration is too severe for repair, and a sample repair is recommended to test feasibility before wholesale replacement gets approved.12National Park Service. Evaluating Historic Windows for Repair or Replacement Energy performance alone is not a sufficient reason for replacement under the standards.
What you spend on doesn’t all count the same way either. Qualified rehabilitation expenditures cover structural and architectural work directly tied to the building itself: walls, floors, ceilings, windows, plumbing, electrical, HVAC, fire suppression, structural repairs, and professional fees for architects and engineers. Furniture, appliances, landscaping, parking lots, signage, sidewalks, and any addition that expands the building’s footprint do not count.1National Park Service. Eligibility Requirements State programs commonly mirror these categories.
Where to Start
Contact your State Historic Preservation Office before you spend money on plans or contractors. That office confirms whether the property qualifies as a certified historic structure, tells you which state credits and local abatements apply, and explains the application timing so you don’t start work before approvals are in place. If a preservation easement is on your list, line up a qualified 501(c)(3) preservation organization and a qualified appraiser experienced in easement valuations before making the donation. Every one of these programs rewards owners who apply first and build second.