Budget Related Publications Subject(s): Fiscal Policy & Taxes State Revenue & Budget Published: October 11, 2022 Agency: Legislative Council Staff The Colorado Constitution limits the amount of revenue, from most sources, that the state government and local governments are permitted to retain and spend or save. Revenue collected in excess of the constitutional revenue limit, or TABOR limit, must be refunded to taxpayers unless voters authorize retention of the excess amount. This memorandum presents information on this constitutional requirement and its administration at the state level. Download Document