There is no single answer to what is considered a farm legally. The USDA, the IRS, the FDA, the EPA, the Department of Labor, and state and local governments each use their own definition, and a property can qualify as a farm under one and fail under another. Which definition matters depends entirely on the question you’re trying to answer: a tax deduction, a loan application, a zoning dispute, a food safety rule, or a workplace inspection.
Below are the definitions that decide the outcomes people actually run into.
The USDA’s $1,000 Threshold
The most widely cited definition comes from the USDA’s Census of Agriculture. Since 1974, the Census has defined a farm as any place that produced and sold, or normally would have sold, at least $1,000 worth of agricultural products during the year.1USDA National Agricultural Statistics Service. Farms and Farmland Government payments count toward that total. Under this definition, the 2022 Census counted roughly 1.9 million farms in the United States.
The bar is deliberately low. It covers everything from a homestead selling produce at a roadside stand to a multi-million-dollar row-crop operation. The USDA then sorts farms by Gross Cash Farm Income (GCFI): a small family farm earns less than $350,000 in GCFI, while a large-scale family farm brings in $1 million or more.2USDA Economic Research Service. Farm Structure and Contracting These tiers matter because federal loan, grant, and conservation programs are often built around them.
How the IRS Defines a Farm
The tax code takes a different approach. Under Internal Revenue Code section 263A, “farming” means the trade or business of cultivating land, raising crops, or raising livestock, and it specifically includes operating a nursery or sod farm and raising or harvesting trees that bear fruit, nuts, or other crops.3Office of the Law Revision Counsel. 26 U.S. Code 263A – Capitalization and Inclusion in Inventory Costs of Certain Expenses Ornamental tree farming counts too, though trees older than six years at harvest are treated differently.
Farm income and expenses are reported on Schedule F. You file Schedule F if you cultivate, operate, or manage a farm for profit, whether you own it or rent it.4Internal Revenue Service. Instructions for Schedule F (Form 1040) If at least two-thirds of your gross income comes from farming, you can skip quarterly estimated tax payments and instead file your return and pay the full amount owed by early March of the following year.
Business or Hobby
The IRS’s key question is whether you’re really trying to make money. If your operation is classified as a hobby rather than a business, you cannot deduct farm losses against your other income. The law presumes you have a profit motive if your farm shows a profit in at least three out of five consecutive tax years. Horse breeding, training, showing, and racing get a more generous standard: two profitable years out of seven.5Office of the Law Revision Counsel. 26 U.S. Code 183 – Activities Not Engaged in for Profit
Missing the presumption doesn’t automatically make you a hobby farmer. The IRS weighs multiple factors, including whether you keep businesslike records, how much time you put in, whether you depend on the income, whether your losses come from startup costs or bad conditions rather than chronic mismanagement, whether you’ve changed methods to try to turn a profit, and your relevant expertise.6Internal Revenue Service. Farmer’s Tax Guide A rural lifestyle funded by off-farm salary with no serious effort at profitability is where audits happen.
The FDA’s Farm Definition for Food Safety
The FDA’s definition exists to sort operations for food safety rules, not to measure income. Under federal produce safety regulations, a “primary production farm” is an operation under one management devoted to growing crops, harvesting crops, raising animals, or any combination of those activities.7eCFR. 21 CFR Part 112 – Standards for the Growing, Harvesting, Packing, and Holding of Produce for Human Consumption The land does not need to be contiguous, but management must be unified.
A primary production farm can pack raw agricultural commodities, hold processed food consumed on that farm or another farm under the same management, and do limited manufacturing like drying grapes into raisins or treating produce to control ripening. Step past those narrow activities and the operation may lose its farm classification and become a “facility” under stricter food safety rules.7eCFR. 21 CFR Part 112 – Standards for the Growing, Harvesting, Packing, and Holding of Produce for Human Consumption A separate off-site “secondary activities farm” can still qualify as a farm if it handles harvesting, packing, or holding raw commodities and the primary farm that grew most of those commodities owns or jointly owns a majority interest in it.
Environmental Rules and Livestock Thresholds
Environmental law largely ignores small crop farms and focuses on livestock operations. Under the Clean Water Act, an “animal feeding operation” is any facility where animals are confined and fed for at least 45 days in a 12-month period and where crops or vegetation are not sustained in the confinement area during the normal growing season.8eCFR. 40 CFR 122.23 – Concentrated Animal Feeding Operations
Once an operation crosses certain animal counts, it becomes a Concentrated Animal Feeding Operation (CAFO) and must comply with federal discharge permits. A large CAFO includes operations confining 1,000 or more cattle, 700 or more mature dairy cows, 2,500 or more swine over 55 pounds, or 82,000 or more laying hens with dry manure systems, among other categories.9Environmental Protection Agency. Regulatory Definitions of Large CAFOs, Medium CAFOs, and Small CAFOs Medium CAFOs sit below those numbers but still face regulation if manure or wastewater reaches surface water through a man-made conveyance, or if animals come into contact with surface water passing through the confinement area. Smaller operations can be designated as CAFOs case by case if regulators find they contribute significantly to water pollution.
Farm Labor and OSHA
Federal labor law defines agriculture unusually broadly. Under the Fair Labor Standards Act, “agriculture” includes farming in all its branches: soil cultivation, dairying, growing and harvesting any agricultural or horticultural commodity, and raising livestock, bees, fur-bearing animals, or poultry. It also covers practices like forestry when performed by a farmer or on a farm in connection with farming operations, plus preparation for market and delivery to storage or carriers.10GovInfo. 29 U.S. Code 203 – Definitions
Agricultural workers are exempt from the FLSA’s overtime requirements. If your employees do agricultural work as defined by the Act, you are not required to pay them time-and-a-half for hours over 40 per week.11U.S. Department of Labor. Fact Sheet 12 – Agricultural Employment Under the Fair Labor Standards Act
The 500 Man-Day Rule
Smaller farms get more. If your operation used fewer than 500 “man-days” of agricultural labor in any calendar quarter of the previous year, you are exempt from both minimum wage and overtime under federal law. A man-day is any day where an employee performs at least one hour of agricultural work, so 500 man-days works out to about seven full-time employees for a quarter.12eCFR. 29 CFR 780.305 – 500 Man-Day Provision Immediate family members of the employer are exempt regardless of size.11U.S. Department of Labor. Fact Sheet 12 – Agricultural Employment Under the Fair Labor Standards Act
The OSHA Small Farm Exemption
A Congressional appropriations rider has for decades prohibited OSHA from spending funds to enforce workplace safety standards against farming operations that employ 10 or fewer workers and do not maintain a temporary labor camp.13Occupational Safety and Health Administration. OSHA Enforcement Exemptions and Limitations Under the Appropriations Act Most U.S. farms are effectively outside OSHA’s inspection and citation reach. Farms with 11 or more workers, or those housing temporary workers in on-site camps, do not qualify.
Covered Farm Vehicles and CDLs
Farmers moving heavy equipment don’t always need a commercial driver’s license. Federal law creates a “covered farm vehicle” category with two tiers. If the vehicle weighs 26,001 pounds or less, the driver can operate it anywhere in the country without a CDL. For heavier vehicles above that weight, the CDL exemption still applies but only within the state where the vehicle is registered, or within 150 air miles of the home farm across state lines.14Federal Register. Transportation of Agricultural Commodities The exemption covers vehicles transporting agricultural commodities, farm supplies, or farm machinery. A farmer hauling non-agricultural freight commercially would not qualify.
State Definitions: Taxes, Zoning, and Right to Farm
The definitions that hit landowners hardest are usually state and local.
Property Tax
Nearly every state offers preferential tax assessment for agricultural land, taxing it on its current farming use rather than its potential development value. Near growing suburbs, the difference can run tens of thousands of dollars a year. Qualifying criteria vary widely: some jurisdictions require a minimum acreage (from none to 100 acres or more), others require minimum gross income from agricultural sales, and many use a combination. States also look at how long the land has been farmed and whether practices follow accepted commercial standards. Converting land out of agricultural use often triggers “rollback” taxes that require repaying the savings over a period of years.
Zoning
Zoning definitions run separately from tax definitions. A parcel might qualify for agricultural tax treatment but sit in a zone that restricts certain farming activities, or the reverse. Local ordinances define which agricultural activities are permitted in each zone and may exempt qualifying farm operations from setback rules, noise limits, or building codes that apply to other uses. The definition in your local zoning code is what determines what you can actually do on the land.
Right-to-Farm Laws
All 50 states have right-to-farm laws that shield established farming operations from nuisance lawsuits over odors, noise, dust, or chemical applications. Most require the farm to have been in lawful operation for at least a year before the complaint and the conditions to have remained substantially unchanged since it began. These protections typically do not cover negligent operations, environmental permit violations, or farms that significantly change the nature or scale of their activities after the neighbor moved in. They apply to “bona fide” or “established” agricultural operations, so your state’s definition of a farm decides whether the protection kicks in.
Agritourism
Corn mazes, pick-your-own berry operations, farm weddings, and on-site stores raise the question of whether an operation is still farming or has become a commercial entertainment business. A majority of states now have agritourism liability laws that provide some legal protection for farm operators who invite the public onto their land, but the protections typically require the activity to take place on a working farm with genuine agricultural production as its primary purpose. A property used only for retail sales or entertainment usually does not qualify. Common conditions include posting warning signs about inherent risks and, in some states, registering the operation or maintaining a written safety plan. The protections do not cover injuries caused by the operator’s negligence or willful misconduct.
Match the Definition to the Question
If you’re applying for an FSA loan, the USDA’s definition controls. If you’re deducting farm losses on your taxes, the IRS profit-motive test is what matters. If you’re arguing about your neighbor’s chicken operation, your municipal code is the only definition that counts. The most common mistake is assuming that qualifying as a farm under one law carries over to another. The same property can be a farm for USDA Census purposes, a hobby to the IRS, and a nonconforming use under local zoning, all at once. Start with the specific law or program in front of you and work from its definition.