Taxation and Revenue

Sec. 1. Assessment of lands and improvements thereon.
All lands and improvements thereon shall be listed for assessment, valued for taxation and assessed separately.

Sec. 2. Assessment of coal lands.
All coal lands in the state from which coal is not being mined shall be listed for assessment, valued for taxation and assessed according to value.

Sec. 3. Taxation of mines and mining claims.
All mines and mining claims from which gold, silver and other precious metals, soda, saline, coal, mineral oil or other valuable deposit, is or may be produced shall be taxed in addition to the surface improvements, and in lieu of taxes on the lands, on the gross product thereof, as may be prescribed by law; provided, that the product of all mines shall be taxed in proportion to the value thereof.

Sec. 4. State levy limited.
For state revenue, there shall be levied annually a tax not to exceed four mills on the dollar of the assessed valuation of the property in the state except for the support of state educational and charitable institutions, the payment of the state debt and the interest thereon.

Sec. 5. County levies limited.
For county revenue, there shall be levied annually a tax not to exceed twelve mills on the dollar for all purposes including general school tax, exclusive of state revenue, except for the payment of its public debt and the interest thereon. This section was amended by a resolution adopted by the 1967 legislature, ratified by a vote of the people at the general election held on November 6, 1968, and proclaimed in effect on December 9, 1968.

Sec. 6. City levies limited.
No incorporated city or town shall levy a tax to exceed eight mills on the dollar in any one year, except for the payment of its public debt and the interest thereon.

Sec. 7. Depositories for public moneys.
All money belonging to the state or to any county, city, town, village or other subdivision therein, except as herein otherwise provided, shall, whenever practicable, be deposited in a national bank or banks or in a bank or banks incorporated under the laws of this state; provided, that the bank or banks in which such money is deposited shall furnish security to be approved as provided by law; and provided further, that such bank or banks shall pay the same rate of interest on any money so deposited therein on time certificates of deposit by the legal custodian or custodians of any such public moneys as such bank or banks pay on time certificates of deposit of private depositors, and the custodian or custodians of any such public moneys shall be authorized to deposit same under time certificates of deposit as may be provided by law. Such interest shall accrue to the fund from which it is derived.

Sec. 8. Profit making from public funds prohibited.
The making of profit, directly or indirectly, out of state, county, city, town or school district money or other public fund, or using the same for any purpose not authorized by law, by any public officer, shall be deemed a felony, and shall be punished as provided by law.

Sec. 9. Legislature to provide for state board of equalization.
The legislature shall provide by law for a state board of equalization. This section was amended by a resolution adopted by the 1909 legislature, ratified by a vote of the people at the general election held on November 8, 1910, and proclaimed in effect on December 12, 1910.

Sec. 10. Duties of state board of equalization.
The duties of the state board shall be to equalize the valuation on all property in the several counties and such other duties as may be prescribed by law. This section was amended by a resolution adopted by the 1985 legislature, ratified by a vote of the people at the general election held on November 4, 1986, and proclaimed in effect on November 18, 1986.

Sec. 11. Uniformity of assessment required.
(a) All property, except as in this constitution otherwise provided, shall be uniformly valued at its full value as defined by the legislature, in three (3) classes as follows:

(i) Gross production of minerals and mine products in lieu of taxes on the land where produced;
(ii) Property used for industrial purposes as defined by the legislature;and
(iii) All other property, real and personal.

(b) The legislature shall prescribe the percentage of value which shall be assessed within each designated class. All taxable property shall be valued at its full value as defined by the legislature except agricultural and grazing lands which shall be valued according to the capability of the land to produce agricultural products under normal conditions. The percentage of value prescribed for industrial property shall not be more than forty percent (40%) higher nor more than four (4) percentage points more than the percentage prescribed for property other than minerals.

(c) The legislature shall not create new classes or subclasses or authorize any property to be assessed at a rate other than the rates set for authorized classes.

(d) All taxation shall be equal and uniform within each class of property. The legislature shall prescribe such regulations as shall secure a just valuation for taxation of all property, real and personal.

Sec. 12. Exemptions from taxation.
The property of the United States, the state, counties, cities, towns, school districts and municipal corporations, when used primarily for a governmental purpose, and public libraries, lots with the buildings thereon used exclusively for religious worship, church parsonages, church schools and public cemeteries, shall be exempt from taxation, and such other property as the legislature may by general law provide. This section was amended by a resolution adopted by the 1955 legislature, ratified by a vote of the people at the general election held on November 6, 1956, and proclaimed in effect on December 29, 1956.

Sec. 13. Tax must be authorized by law; law to state object.
No tax shall be levied, except in pursuance of law, and every law imposing a tax shall state distinctly the object of the same, to which only it shall be applied.

Sec. 14. Surrender of taxing power prohibited.
The power of taxation shall never be surrendered or suspended by any grant or contract to which the state or any county or other municipal corporation shall be a party.

Sec. 15. State tax for support of public schools.
For the support of the public schools in the state there may be levied each year a state tax not exceeding twelve mills on the dollar of the assessed valuation of the property in the state.  This section was added by an amendment proposed by the 1947 legislature, ratified by a vote of the people at the general election held on November 2, 1948, and proclaimed in effect on December 1, 1948.

Sec. 16. Disposition of fees, excises and license taxes on vehicles and gasoline.
No moneys derived from fees, excises, or license taxes levied by the state and exclusive of registration fees and licenses or excise taxes imposed by a county or municipality, relating to registration, operation or use of vehicles on public highways, streets or alleys, or to fuels used for propelling such vehicles, shall be expended for other than cost of administering such laws, statutory refunds and adjustments allowed therein, payment of highway obligations, costs for construction, reconstruction, maintenance and repair of public highways, county roads, bridges, and streets, alleys and bridges in cities and towns, and expense of enforcing state traffic laws. This section was added by an amendment proposed by the 1953 legislature, ratified by a vote of the people at the general election held on November 2, 1954, and proclaimed in effect on December 7, 1954.

Sec. 17. County levy for support and maintenance of public schools.
There shall be levied each year in each county of the state a tax of not to exceed six (6) mills on the dollar of the assessed valuation of the property in each county for the support and maintenance of the public schools. This tax shall be collected by the county treasurer and disbursed among the school districts within the county as the legislature shall provide. The legislature may authorize boards of trustees of school districts to levy a special tax on the property of the district. The legislature may also provide for the distribution among one (1) or more school districts of any revenue from the special school district property tax in excess of a state average yield, which shall be calculated each year, per average daily membership. This section was amended by a resolution adopted by the 1965 legislature, ratified by a vote of the people at the general election held on November 8, 1966, and proclaimed in effect on January 17, 1967. This  section was amended again by a resolution adopted by the 1981 legislature, ratified by a vote of the people at the general election held on November 2, 1982, and proclaimed in effect on November 24, 1982. This section was amended again by a resolution adopted by the 1981 legislature, ratified by a vote of the people at the general election held on November 7, 2006, and proclaimed in effect on November 15, 2006.

Sec. 18. Full tax credit allowed against any liability arising from a tax on income.
No tax shall be imposed upon income without allowing full credit against such tax liability for all sales, use, and ad valorem taxes paid in the taxable year by the same taxpayer to any taxing authority in Wyoming.

Sec. 19. Mineral excise tax; distribution.
The Legislature shall provide by law for an excise tax on the privilege of severing or extracting minerals, of one and one-half percent (1 1/2%) on the value of the gross product extracted. The minerals subject to such excise tax shall be coal, petroleum, natural gas, oil shale, and such other minerals as may be designated by the Legislature. Such tax shall be in addition to any other excise, severance or ad valorem tax. The proceeds from such tax shall be deposited in the Permanent Wyoming Mineral Trust Fund. The fund, including all monies deposited in the fund from whatever source, shall remain inviolate. The monies in the fund shall be invested as prescribed by the Legislature and all income from fund investments shall be deposited by the State Treasurer in the general fund on an annual basis. The Legislature may also specify by law, conditions and terms under which monies in the fund may be loaned to political subdivisions of the state.This section was amended by   resolution adopted by the 1974 legislature, ratified by a vote of the people at the general election held on November 5, 1974, and proclaimed in effect on December 12, 1974. This section was amended by a resolution adopted by the 1974 legislature, ratified by a vote of the people at the general election held on November 7, 2006, and proclaimed in effect on November 15, 2006.

Sec. 20. Higher education trust funds; investments; earnings.
The legislature may from time to time place monies into endowment funds for higher education scholarships and for improving the quality of higher education, which funds shall remain inviolate. The earnings of the funds shall be used for the purposes specified in this section, but the legislature may from time to time by law regulate the manner in which the earnings are expended. The legislature may also provide for use of the earnings to protect the funds from inflation and to even fluctuations in earnings over time. The funds may be invested in the same manner as other permanent funds of the state. This section was added by a resolution proposed by the 2006 legislature, ratified by a vote of the people at the general election held on November 7, 2006 and proclaimed in effect on November 15, 2006.