Federal Tax Conformity Bill Advances with Expanded R&D Incentives for Vermont Businesses
The House Ways and Means Committee has advanced a miscellaneous tax bill updating Vermont’s conformity with federal tax law and making several targeted changes to the state’s tax code.
While many provisions are technical, the decisions in this bill will influence how Vermont businesses calculate taxable income, deduct certain expenses, access tax incentives, and ultimately decide where to invest in research, development, and innovation.
Because Vermont does not automatically conform to federal tax law, the Legislature periodically reviews changes made by Congress and decides which provisions to adopt at the state level. Following the passage of H.R.1 last summer, lawmakers are now determining how those federal tax changes should apply within Vermont’s tax system — and where the state will take a different policy approach.
Why it matters: For businesses making investment decisions, these conformity updates can matter as much as changes to tax rates. The structure of deductions, credits, and cost recovery rules influences where companies choose to invest in equipment, research, and workforce expansion.
What This Means for Vermont Businesses
Federal conformity decisions shape how businesses calculate taxable income and how certain investments are treated under Vermont’s tax code.
Many provisions in this bill affect how companies recover the cost of investments such as equipment purchases, research and development, and financing. These rules influence how businesses plan capital investments, evaluate new projects, and forecast future tax liability.
Several federal provisions that expand deductions for operating expenses will flow through to Vermont, while lawmakers chose not to adopt certain federal tax preferences tied to investment income and international taxation.
For Vermont businesses, the practical result is straightforward: some federal tax changes will apply automatically to Vermont returns, while others will require separate state adjustments.
Research and Development Policy
Research and development policy is one of the most closely watched business provisions in the bill.
In recent years, federal tax rules changed how companies deduct research expenses, requiring many businesses to spread those deductions over five years rather than deducting them immediately.
Recent federal legislation restored immediate deductibility for smaller businesses. The House Ways and Means Committee advanced the following conformity choices:
- Small businesses, as defined under federal law (those with average annual receipts under roughly $31 million), will be able to fully deduct research expenses.
- Larger businesses will continue to amortize those expenses over five years for Vermont tax purposes.
Earlier concepts considered would have permanently disallowed the deduction of research expenses at the state level. That proposal raised significant concerns among innovation-driven employers.
The final structure reflects extensive collaboration among the House Ways and Means Committee, the Administration, tax professionals, and the Vermont Chamber of Commerce. Chair Kornheiser noted during the committee’s discussion the Vermont Chamber’s role in helping shape the R&D framework and bringing business expertise into the policy development process.
Major Expansion of Vermont’s R&D Tax Credit
The bill also significantly expands Vermont’s existing research and development tax credit.
Currently, Vermont’s credit equals 27 percent of the federal R&D credit for qualifying research conducted in the state.
The bill increases that rate to 75 percent of the federal credit and raises the annual statewide cap from $3 million to $5 million.
The takeaway: If enacted, this would represent one of the largest expansions of Vermont’s research incentive in recent years.
Other Federal Tax Changes Vermont Will Adopt
Several federal changes affecting business taxation will flow through to Vermont under the bill.
- More generous expensing of business equipment: Federal law increased the amount businesses can immediately expense for depreciable assets from $1 million to $2.5 million. Vermont will conform to this change, allowing businesses to recover equipment costs more quickly.
- Expanded business interest deductions: Federal law increased the allowable deduction for business interest from 30 percent to 50 percent of adjusted taxable income. Vermont will conform to this provision, allowing businesses with significant borrowing to deduct a larger share of interest expenses.
- Changes to controlled foreign corporation reporting rules: Federal adjustments to pro rata share rules will flow through to Vermont, affecting companies that hold interests in certain foreign corporations.
- Updates to corporate charitable deduction limits: Federal law changed how corporations calculate deductions for charitable contributions. Vermont will conform to those changes as well.
- Federal expansion of the Child and Dependent Care Tax Credit will also flow through to Vermont’s corresponding state credit.
Where Vermont Chose a Different Path
In several areas, the Committee chose not to adopt new federal tax preferences.
These include:
- Qualified Small Business Stock (QSBS): Federal law expanded the exclusion for capital gains on certain startup investments. Vermont will not conform to that change, meaning those gains remain taxable at the state level.
- Section 250 international income deductions: The bill decouples Vermont from federal deductions related to certain international income earned by multinational corporations. This provision represents one of the largest revenue components in the bill.
- Special depreciation for certain production facilities: Federal law created a new bonus depreciation provision for some manufacturing property. Vermont will not adopt that provision and will instead continue requiring the property to be depreciated over time.
The Bottom Line
Federal conformity bills often receive limited attention because many provisions are technical.
However, the choices made in these updates can significantly influence how Vermont businesses calculate taxable income and how the state structures economic incentives.
This year’s bill reflects a mix of policy decisions: adopting several federal changes that expand business deductions, declining to follow others that would reduce state revenue, and significantly expanding Vermont’s research and development tax credit.
The Vermont Chamber will continue working with policymakers to ensure Vermont’s tax system supports a competitive, predictable environment for the businesses that drive Vermont’s economy.



