Alright, so let’s break it down a bit more (just as a primer on the issue):
Initially ‘net income’ was ratified as intending to in part include “…gains, profits, and income derived from salaries, wages, or compensation for personal service…”
Thereafter amended to be ‘gross income’ to mean (although maintaining that the former still to date bears strict statutory relevance), “all income from whatever source derived, including …Compensation for services, including fees, commissions, fringe benefits, and similar items…”
Thus, to the former we have singularity and to the latter we have multiplicity. So then to view a few interesting legal definitions in rendering out their various contexts:
GAIN. Profits; winnings; increment of value. [Citations omitted.]
Difference between receipts and expenditures; pecuniary gain. [Citations omitted.]
PROFIT. The advance in the price of goods sold beyond the cost of purchase. The gain made by the sale of produce or manufactures, after deducting the value of the labor, materials, rents, and all expenses, together with the interest of the capital employed. [Citations omitted.]
The excess of receipts over expenditures; that is, net earnings. [Citations omitted.]
The receipts of a business, deducting current expenses; it is equivalent to net receipts. [Citations omitted.]
An excess of the value of returns over the value of advances. The same as net profits. [Citations omitted.]
… In distinction from the wages of labor, it is well understood to imply the net return to the capital of stock employed, after deducting all the expenses, including not only the wages of those employed by the capitalist, but the wages of the capitalist himself for superintending the employment of his capital or stock. [Citations omitted.]
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The benefit, advantage, or pecuniary gain accruing to the owner or occupant of land from its actual use; as in the familiar phrase “rents, issues and profits,” or in the expression “mesne profits.”
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FEE. …
A reward, compensation, or wage given to one for the performance of official duties (clerk of court, sheriff, etc.) or for professional services, as in the case of an attorney at law or a physician;–frequently used in the plural form. [Citations omitted.] A recompense for an official or professional service or a charge or emolument or compensation for particular act or service. [Citations omitted.]
Fees differ from costs in this, that the former are a recompense to the officer for his service; and the latter, an indemnification to the party for money laid out and expended in his suit; [Citations omitted.] Fees are synonymous with charges; [Citations omitted.] and also with “percentage” or “commission”; [Citations omitted.]
“Salary,” as relating to the compensation of public officers, is generally regarded as a periodical payment dependent upon time, while “fees” depend on services rendered, the amount of which is fixed by law and payable when the judgment allowing them is entered. [Citations omitted.]
LABOR. Work; toll; service. Continued exertion, of the more onerous and inferior kind, usually and chiefly consisting in the protracted expenditure of muscular force, adapted to the accomplishment of specific useful ends.
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“Labor,” “business,” and “work” are not synonyms. Labor may be business, but it is not necessarily so; and business is not always labor. Labor implies toll; exertion producing weariness; manual exertion of a toll some nature.
LABORER. One who, as a means of livelihood, performs work and labor for another. [Citations omitted.]
In English statutes, this term is generally understood to designate a servant employed in husbandry or manufactures, and not dwelling in the home of his employer. Wharton; Mozley & Whitley. A person without particular training, employed at manual labor under a contract terminable at will. [Citations omitted.]
As used in mechanics’ lien statute “laborer” is said to include all who work with their hands, crude implements, or teams in work demanding that character of service, [Citations omitted.] …
A laborer, as the word is used in the Pennsylvania act of 1872, giving certain preference of lien, is one who performs, with his own hands, the contract which he makes with his employer. …
PAY. Compensation. [Citation omitted.] A fixed and definite amount given by law to persons in military service in consideration of and as compensation for their personal services. [Citation omitted.]
SALARY. A reward or recompense for services performed.
In a more limited sense salary is a fixed periodical compensation paid for services rendered; a stated compensation, amounting to so much by the year, month, or other fixed period, to be paid to public officers and persons in some private employments, for the performance of official duties or the rendering of services of a particular kind, more or less definitely described, involving professional knowledge or skill, or at least employment above the grade of menial or mechanical labor. [Citations omitted.]
The word “salary,” is synonymous with “wages,” except that “salary” is sometimes understood to relate to compensation for official or other services, as distinguished from “wages,” which is the compensation for labor. [Citations omitted.]
WAGES. A compensation given to a hired person for his or her services; the compensation agreed upon by a master to be paid to a servant, or any other person hired to do work or business for him. [Citations omitted.]
Agreed compensation for services by workmen, clerks or servants–those who have served an employer in a subordinate or menial capacity and who are supposed to be dependent upon their earnings to pay their present support, whether they are to be paid by the hour, the day, the week, the month, the job, or the piece. …
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In Political Economy
The reward paid, whether in money or goods, to human exertion, considered as a factor in the production of wealth, for its co-operation in the process.
“Three factors contribute to the production of commodities,–nature, labor, and capital. Each must have a share of the product as its reward, and this share, if it is just, must be proportionate to the several contributions. The share of the natural agents is rent; the share of labor, wages; the share of capital, interest. The clerk receives a salary; the lawyer and doctor, fees; the manufacturer, profits. Salary, fees, and profits are so many forms of wages for services rendered.” …
–Wage earner. One who earns his living by labor of a menial or mechanical kind or performed in a subordinate capacity, such as domestic servants, mechanics, farm hands, clerks, porters, and messengers. In the United States bankruptcy act of 1898, an individual who works for wages, salary, or hire, at a compensation not exceeding $1,500 [at current inflation is around $39,000] per year. [Citations omitted.]
COMPENSATION. Indemnification; payment of damages; making amends; making whole; giving an equivalent or substitute of equal value; that which is necessary to restore an injured party to his former position. An act which a court orders to be done, or money which a court or other tribunal orders to be paid, by a person whose acts or omissions have caused loss or injury to another, in order that thereby the person damnified may receive equal value for his loss, or be made whole in respect of his injury.
“Compensation” is a misleading term, and is used merely for lack of a word more nearly expressing the thought of the law which permits recovery for an imponderable and intangible thing for which there is no money equivalent. …
The word “compensation,” as used in Workmen’s Compensation Acts, means the money relief afforded an injured employee or his dependents according to the scale established and for the persons designated in the act, and not the compensatory damages recoverable in an action at law for wrong done or a contract broken. …
As used in Workman’s Compensation Acts, “compensation” is distinguishable from “benefits”; the former applying to an allowance where the employee is only injured, and the latter applying in case of death. … The term “compensation” may include funeral benefits. …
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The remuneration or wages given to an employee or, especially, to an officer. Salary, pay, or emolument. [Citations omitted.]
The ordinary meaning of the term “compensation,” as applied to officers, is remuneration, in whatever form it may be given, whether it be salaries and fees, or both combined. It is broad enough to include other remuneration for official services; [Citations omitted]; such as mileage or traveling expenses; [Citations omitted]; and also the repayment of amounts expended; [Citations omitted.]
But the term is not necessarily synonymous with “salary.” [Citations omitted.]
A “reasonable compensation” is that which will fairly compensate the laborer when the character of the work and the effectiveness and ability entering into the service are considered. [Citations omitted.]
Compensation is not synonymous with “pension,” which is ordinarily a gratuity from the government or some of its subordinate agencies in recognition of, but not in payment for, past services. [Citations omitted.]
SERVICE.
In Contracts
The being employed to serve another; duty or labor to be rendered by one person to another, the former being bound to submit his will to the direction and control of the latter. [Citations omitted.] The act of serving; the labor performed or the duties required. [Citations omitted.]
“Service” and “employment” generally imply that the employer, or person to whom the service is due, both selects and compensates the employee, or person rendering the service. [Citations omitted.]
The term is used also for employment in one of the offices, departments, or agencies of the government; as in the phrases “civil service,” “public service,” “military service,” etc. [Citations omitted.]
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PROFESSIONAL. A term applied in the Immigration Law, May 19, 1921, 2, subd. “d” (42 State. 6), to one undertaking or engaging for money as a means of subsistence in a particular art. It is opposed to amateur, and as used in the statute refers to one who pursues an art and makes his living therefrom. [Citations omitted.]
PROFESSIONAL EMPLOYMENT. Within the meaning of a statute authorizing actions for misconduct or neglect, professional services by an attorney are not limited to litigation, but include giving advice, managing a business, devising plans, and making collections, and the employment may be recognized as professional, although including services not ordinarily classed as professional services; whether the attorney is professionally employed depending on the relations and mutual understanding of what was said and done, and on all the facts and circumstances of the particular undertaking. …
EMPLOY. To engage in one’s service; to use as an agent or substitute in transacting business; to commission and intrust with the management of one’s affairs; and, when used in respect to a servant or hired laborer, the term is equivalent to hiring, which implies a request and a contract for a compensation, and has but this one meaning when used in the ordinary affairs and business of life. [Citations omitted.]
EMPLOYEE. This word “is from the French, but has become somewhat naturalized in our language. Strictly and etymologically, it means ‘a person employed,’ but, in practice in the French language, it ordinarily is used to signify a person in some official employment [NOTICE: this is noteworthy with consideration to the Classification Act quoted earlier], and is generally used with us, though perhaps not confined to any official employment, it is understood to mean some permanent employment or position.” The word may be more extensive than “clerk” or “officer,” and may signify any one in place, or having charge or using a function, as well as one in office. [Citations omitted.]
One who works for an employer; a person working for salary or wages; applied to anyone so working, but usually only to clerks, workmen, laborers, etc., and but rarely to the higher officers of a corporation or government or to domestic servants. [NOTICE: this is noteworthy with consideration to the IRC frequent referencing to corporate officers and federal employees and instrumentalities] [Citations omitted.]
“Employee” must be distinguished from “independent contractor,” “officer,” “vice-principal,” “agent,” etc. The term is often specially defined by statutes; and whether one is an employee or not will depend upon particular facts and circumstances even though the relation or master and servant, or some other form of contractual relation does or does not exist. [Citations omitted.]
OCCUPATION. …
A trade; employment; profession; business; means of livelihood. …
… The word “occupation” must be held to have reference to the vocation, profession, trade or calling which the assured is engaged in for hire or for profit. [Citations omitted.]
“Occupation” as used in Workmen’s Compensation Act means that particular business, profession, trade or calling which engages the time and efforts of an individual, the employment in which he regularly engages or the vocation of one’s life. [Citations omitted.]
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WORKMAN. One who labors; one employed to do business for another; one engaged in some form of manual labor, whether skilled or unskilled. [Citations omitted.]
A “workman,” in the broad sense, is one who works in any department of physical or mental labor, but in common speech is one who is employed in manual labor, such as an artificer, mechanic, or artisan; while an “employee” in a broad sense is one who receives salary, wages, or other compensation from another, but the term is usually applied to clerks, laborers, etc., and not to the higher officers of a corporation. [Citations omitted.]
Under Workman’s Compensation Acts
The term “workman” in the Workman’s Compensation Act means, as the act states, one who engages to furnish services subject to the control of an employer, and the relation necessary to constitute one an employer and another a workman under the act is the relation of master and servant originating in a contract for personal services, subject to complete control of the details of work and the mode of its performance. [Citations omitted.]