Tax Obligations for New Hampshire Contractors
New Hampshire imposes a distinct set of tax obligations on contractors that differ substantially from those in neighboring states, primarily because the state levies no general sales tax and no personal income tax on wages. However, contractors operating in New Hampshire remain subject to the Business Profits Tax, the Business Enterprise Tax, and federal employment tax requirements, along with specific rules governing materials, labor billing, and subcontractor relationships. Understanding where each obligation applies — and where it does not — is essential for maintaining compliance across project types and entity structures.
Definition and scope
Tax obligations for New Hampshire contractors encompass all state and federal fiscal requirements that arise from operating a contracting business within the state. These include business-level taxes administered by the New Hampshire Department of Revenue Administration (NHDRA), federal payroll and self-employment taxes administered by the Internal Revenue Service (IRS), and transaction-based rules that determine how contractors bill for materials versus labor.
New Hampshire's tax structure is notable for what it omits: there is no general state sales tax (NHDRA, Overview of NH Taxes), which eliminates the sales-tax-on-materials complexity that contractors face in states like Massachusetts or Vermont. This does not eliminate tax obligations; it shifts them toward entity-level taxes on income and enterprise value.
This page's scope covers state and federal tax obligations applicable to contractors physically performing work in New Hampshire. It does not address multistate nexus obligations that may arise when a contractor is domiciled outside New Hampshire — those situations are addressed under New Hampshire out-of-state contractor requirements. Tax treatment related specifically to business structure selection falls under New Hampshire contractor business entity options. Worker classification tax consequences are addressed separately at New Hampshire contractor worker classification.
How it works
New Hampshire's two primary business-level taxes form the core of contractor tax obligations at the state level.
1. Business Profits Tax (BPT)
The BPT applies to any business organization with gross business income exceeding $50,000 per year (RSA 77-A). The rate set by the NHDRA for tax years beginning on or after January 1, 2023, is 7.5% on taxable business profits (NHDRA, BPT Rate Schedule). Sole proprietors, partnerships, LLCs, S-corporations, and C-corporations are all potentially subject to the BPT if they meet the income threshold. Taxable income is calculated starting from federal taxable income, with New Hampshire-specific additions and deductions applied.
2. Business Enterprise Tax (BET)
The BET applies to business enterprises with gross receipts exceeding $281,000, or an enterprise value tax base exceeding $281,000 (RSA 77-E). The BET rate as of 2023 is 0.55% of the enterprise value tax base, which is calculated as the sum of all compensation paid, interest paid, and dividends paid. BET paid is creditable against BPT liability, so the two taxes operate in coordination rather than in isolation.
3. Federal Obligations
Contractors operating as sole proprietors pay self-employment tax at 15.3% on net self-employment income up to the Social Security wage base, plus 2.9% on income above that threshold (IRS Publication 334). Contractors with employees must withhold federal income tax, remit FICA contributions, and file quarterly payroll reports using IRS Form 941.
4. No Sales Tax on Labor or Materials
Because New Hampshire has no general sales tax, contractors do not collect or remit sales tax on materials incorporated into real property or on labor charges. This contrasts directly with states such as Maine, where contractors may owe sales tax on certain materials.
Common scenarios
The following breakdown reflects the most frequently encountered tax situations for New Hampshire contractors:
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Sole proprietor with no employees — Files Schedule C federally, pays self-employment tax to the IRS, and files a BPT return if gross business income exceeds $50,000. BET applies if the enterprise value base exceeds the statutory threshold.
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LLC treated as a partnership — Partners report distributive shares on federal Schedule E. The LLC itself files New Hampshire BPT and BET returns. Compensation paid to working members is included in the BET base.
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S-Corporation contractor — Shareholder-employees receive W-2 wages subject to payroll taxes. The S-Corp files its own BPT and BET returns. Reasonable compensation determinations affect both federal and state tax exposure.
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General contractor with subcontractors — Amounts paid to subcontractors reduce the general contractor's gross receipts for BPT purposes only to the extent they represent separately stated subcontractor costs, subject to NHDRA rules. The general contractor must issue IRS Form 1099-NEC to unincorporated subcontractors paid $600 or more annually. Worker classification errors can retroactively convert subcontractor payments into taxable wages — a risk examined in detail at New Hampshire contractor worker classification.
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Residential remodeling contractor — Because no sales tax applies, billing practices that separate labor from materials carry no transaction-tax consequence, unlike in neighboring states. However, the BPT applies to total net profits regardless of how invoices are structured.
Decision boundaries
The primary classification decision affecting tax treatment is entity type. A sole proprietor cannot credit BET against personal federal income tax liability, whereas a C-corporation faces potential double taxation. The table below summarizes the primary differences:
| Entity Type | BPT Filing | BET Filing | Federal Treatment |
|---|---|---|---|
| Sole Proprietor | Yes (if threshold met) | Yes (if threshold met) | Schedule C + SE Tax |
| Partnership / LLC | Yes | Yes | Schedule K-1 to partners |
| S-Corporation | Yes | Yes | W-2 wages + K-1 distributions |
| C-Corporation | Yes | Yes | Corporate return (Form 1120) |
A second decision boundary concerns employee versus subcontractor classification. Misclassification causes payroll tax liabilities to apply retroactively, including penalties and interest assessed by both the IRS and NHDRA. The New Hampshire contractor regulatory agencies overseeing labor matters cross-reference NHDRA enforcement in audit situations.
A third boundary involves gross receipts thresholds. Contractors whose gross income falls below $50,000 (BPT) or whose enterprise value base falls below $281,000 (BET) have no state filing obligation for those respective taxes, but federal obligations remain regardless of revenue level. Contractors approaching these thresholds mid-year should track cumulative income against statutory figures, not annualized projections.
Contractors engaged in public works projects face additional reporting and withholding considerations covered under New Hampshire contractor prevailing wage rules, which interact with payroll tax calculations when prevailing wage rates exceed market rates for specific trade classifications.
References
- New Hampshire Department of Revenue Administration (NHDRA)
- RSA 77-A — Business Profits Tax (NH Legislature)
- RSA 77-E — Business Enterprise Tax (NH Legislature)
- NHDRA Overview of NH Taxes
- IRS Publication 334 — Tax Guide for Small Business
- IRS Self-Employment Tax Overview
- IRS Form 941 — Employer's Quarterly Federal Tax Return
- IRS Form 1099-NEC Instructions