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Statewide measure · every Colorado voter

Proposition NNKeep and Spend Money for Education and Other Purposes

Placed on the ballot by the legislature • Passes with a majority vote. Blue Book page 41 (the printed page number; your PDF viewer's page count runs higher).

The ballot choice

What your vote means

Proposition NN: a plain-language overview

THE CURRENT RULE

The state constitution limits how much tax money Colorado can keep each year. Money collected above the TABOR limit is generally returned to taxpayers.

IF IT PASSESYes

The state keeps money it would have refunded under TABOR, up to a new limit, and spends it on K-12 schools, children's programs, and, after 10 years, other purposes the legislature chooses.

IF IT FAILSNo

TABOR refunds continue as they are now, and funding for K-12 schools and children's programs stays at current levels.

Our plain-words summary. Source: Colorado Blue Book, p. 41

The Blue Book's official wording of YES and NO (tap to open)

YES: A “yes” vote on Proposition NN allows the state to keep some or all of the revenue that otherwise would be refunded to taxpayers under TABOR. The retained revenue must be spent on K-12 education, programs that support children, and any other purposes.

NO: A “no” vote on Proposition NN maintains current TABOR refunds and funding levels for K-12 education, programs that support children, and other state purposes.

In plain words

The state constitution limits how much tax money Colorado can keep each year. This limit is called TABOR (the Taxpayer's Bill of Rights). Money collected above it goes back to taxpayers as TABOR refunds. Proposition NN would let the state keep that money, up to a new, higher limit, and spend it on K-12 schools and programs for children. Regular tax refunds, for paying too much tax, are not affected. source: Blue Book, p. 41

Before and after

QuestionTodayIf Proposition NN passes
Most the state can keep each yearThe TABOR limit: last year's limit, raised for inflation and population growthThe TABOR limit plus the most the state has spent on K-12 schools from certain sources in past years (up to $4.6 billion more in the first year)
Total TABOR refunds$329.9 million in budget year 2026-27 and $521.0 million in 2027-28None in either year
2028 TABOR refund, single filer with $50,000 income$39$0
2028 TABOR refund, joint filers with $500,000 income$352$0
Where money above the TABOR limit goesBack to taxpayersFirst, paying back local governments for property tax breaks for seniors, veterans with a disability, and Gold Star surviving spouses (as today); the rest to K-12 schools and children's programs for 10 years, then K-12 and anything the legislature picks

From the official analysis source: Blue Book, p. 41

Example

Illustration only: Under current law, a married couple filing together with $100,000 of income would get a $56 TABOR refund in 2027 and $96 in 2028. Under Proposition NN, they would get $0 in both years. The Blue Book says that in later years the loss could be nothing in some years and more than $1,000 per taxpayer in others. source: Blue Book, p. 41

Biggest change

Who it affects most: Taxpayers who would get TABOR refunds, and the K-12 schools and children's programs that would get that money instead.

Cost to the state: No new tax. The state would keep and spend about $329.9 million more in budget year 2026-27 and $521.0 million more in 2027-28 (a budget year runs July 1 to June 30), money that would otherwise be refunded. Of that, $153.1 million a year that would go to the general state budget goes to the new Children's Account instead in those two years. The state auditor's reports cost $20,000 in 2027-28. Amounts after that are unknown; there is no forecast past 2027-28.

Our plain-words summary at an 8th-grade reading level. Every line points to its source.

Pull a Thread. Find its Way. Explore where this rule came from and what the evidence shows.

Related case study: TABOR: voter control, public revenue, and Colorado's ballot choices (initial draft, not independently reviewed).

Why people want it, and why others object

Why this is on the ballot

Why supporters want it

Why opponents object

Who backs each side

Most totals are through October 4, 2026 (Rocky Mountain Voice, Oct 6); some are as of September 21 (Colorado Politics). Spending grows until Election Day. These figures come from news reports of state campaign finance filings and were not checked line by line against the filings.

Sources: Rocky Mountain Voice, Oct 6, 2026 · Colorado Politics, Sept 25, 2026 · Colorado Secretary of State: committees for and against 2026 measures · TRACER campaign finance search

Supporter and opponent arguments are the official ones printed in the Blue Book, written by the Legislative Council's nonpartisan staff after hearing from both sides. Who is registered for and against (Secretary of State) . We don't endorse either side.

At a glance

Our plain-words summary of the official Blue Book analysis. Every line points to its source.

Who it affects

How many: The Blue Book does not count how many taxpayers would lose refunds. It estimates refunds would shrink by $329.9 million in budget year 2026-27 and $521.0 million in budget year 2027-28. In 2027, for example, a single filer with $50,000 of income would lose a $21 refund and a joint filer with $500,000 would lose $130. In 2028, those amounts are $39 and $352.

Money: economic and budget impact

If it passes

The state may keep revenue above the current TABOR limit, up to a new, higher limit tied to past K-12 spending. That money first pays back local governments for property tax breaks. The rest goes to a new Children's Account for K-12 education and children's programs for ten years. Starting in budget year 2036-37, a flat amount still goes to K-12, and the legislature may spend the rest on any purpose. This is a change to state law (a statute), so the legislature can amend it.

If it fails

The current TABOR limit stays. Revenue above it is still refunded to taxpayers, and funding for K-12 education, children's programs and other state purposes stays at current levels.

Not yet known

Can it actually be enforced?

Short answer: Yes, voters can approve this under TABOR. But it is a statute, so the legislature could change parts of it later, and Proposition 137 could shrink how much it keeps.

Not yet known

This is our reading of the cited law, not legal advice. Court outcomes are uncertain.

Official ballot wording

Official ballot wording, word for word (tap to open)

The ballot title, word for word from the 2026 Blue Book.

Shall state investment in K-12 public education increase two percent each year for the next ten years, with investments used to increase teacher pay, improve teacher retention, lower class sizes, and increase access to career and technical courses, without raising taxes but instead funded by raising the annual limit on state fiscal year spending only by the amount spent on public K-12 education as a voter-approved revenue change, and requiring an annual publicly released, independent audit to show how the new investments are spent?

The official analysis

The full Blue Book analysis, word for word (tap to open)

Everything in this section is quoted from the nonpartisan Legislative Council's 2026 State Ballot Information Booklet (the Blue Book). Charts are described in words. Read the full Blue Book (PDF)

Proposition NN proposes amending the Colorado statutes to

  • allow the state to keep some or all of the revenue that the state's constitutional revenue limit, also known as the Taxpayer's Bill of Rights (TABOR), would otherwise require to be refunded to taxpayers, up to the amount the state spends on public education; and
  • spend the retained revenue to increase funding for K-12 education and programs that support children, and, after ten years, K-12 education and any other purposes to be determined by the state legislature.

Summary and Analysis of Proposition NN

What does Proposition NN do?

Proposition NN allows the state to keep and spend revenue that would otherwise be refunded to taxpayers under TABOR, up to a newly established limit. The new limit is higher than the current limit and is based on the amount the state government spends on public education.

In the first ten years, this revenue must be spent on K-12 education and programs that support children. After ten years, the retained revenue must be spent on K-12 education and other purposes to be determined by the state legislature. The measure dedicates the K-12 education spending to teacher pay and retention, smaller class sizes, career and technical courses, school services, disability services, and more instructional hours, as described below. The retained revenue also must be spent to reimburse local governments for property tax exemptions, as required under current law.

The measure includes requirements for the state auditor and school districts to report on how the retained money is spent.

What is the TABOR limit and what are TABOR refunds?

The Colorado Constitution limits the amount of revenue the state government can collect each year. The limit is equal to the prior year’s limit, adjusted for inflation plus population growth. This is known as the TABOR limit. Voters may give the state permission to keep and spend additional revenue above the TABOR limit.

If the amount of revenue the state collects in any year is above the TABOR limit, the excess amount must be refunded to taxpayers. These are called TABOR refunds, and they are distributed to taxpayers in several ways. For more information, see the Legislative Council Staff memorandum titled, “A Brief Overview of the TABOR Revenue Limit.”1

TABOR refunds are often distributed when people file their taxes, but they are different from tax refunds that are owed when people overpay their taxes. Tax refunds are not affected by this measure.

How much revenue will the state keep and spend under Proposition NN?

Under Proposition NN, the maximum amount the state may keep is equal to the current TABOR limit, plus the highest amount the state has spent on K-12 education from certain funding sources in previous years. This is referred to as the Proposition NN limit in this analysis.

The actual amount the state will keep depends on how much revenue it collects. For example, in the first year, the measure allows the state to keep up to $4.6 billion above the current TABOR limit. However, the state is estimated to actually keep about $500 million, which is the amount of revenue the state is expected to collect above the TABOR limit. This is shown in Figure 1 below.

Figure 1: State Revenue Limits Under Proposition NN, Budget Years 2026-27 and 2027-28. This chart is in the printed Blue Book on page 42.

The Proposition NN limit continues indefinitely. Any revenue above the new Proposition NN limit must be refunded to taxpayers.

In later years, the Proposition NN limit is expected to grow faster than the current TABOR limit based on the amount the state legislature allocates for K-12 education. State revenue is expected to continue to be well below the Proposition NN limit in the next several years, and is not expected to exceed the Proposition NN limit for at least the next five to ten years. Long-term projections beyond that period are uncertain.

How does Proposition NN impact TABOR refunds?

Proposition NN’s impact on TABOR refunds depends on how much money the state collects above the current TABOR limit in a given year, and how much the state spent on public education in prior years. Figure 2 shows the range of possible TABOR refund impacts, which will vary from year to year. Under current estimates, revenue in the next several years is expected to exceed the current TABOR limit but not the new Proposition NN limit, which would eliminate TABOR refunds in these years, as described in Scenario 2 in the figure below.

Figure 2: Scenarios for TABOR Refund Changes (Blue Book p. 43; chart text shown here)

  • Scenario 1 – Revenue exceeds the Prop. NN limit. In years when state revenue exceeds the new Prop. NN limit, Prop. NN reduces TABOR refunds. Revenue is not likely to exceed the Prop. NN limit in the first several years, but this scenario becomes more likely over time.
  • Scenario 2 – Revenue exceeds the TABOR limit, but not the Prop. NN limit. In years when state revenue exceeds the current TABOR limit and is less than the new Prop. NN limit, Prop. NN eliminates TABOR refunds. This is the most likely scenario for the next several years, unless there is a recession.
  • Scenario 3 – Revenue falls below the TABOR limit. In years when state revenue falls below the current TABOR limit, which may happen during a recession, Prop. NN has no impact on TABOR refunds, as refunds would not be made under current law.

How will the retained revenue be spent?

Proposition NN specifies how revenue retained above the current TABOR limit must be spent. The revenue must first be used to reimburse local governments for the lost tax revenue from property tax exemptions for seniors, veterans with a disability, and Gold Star surviving spouses, as is already required as a TABOR refund mechanism under current law. All remaining revenue is deposited into the newly created Children’s Account. Figure 3 shows new spending requirements under Proposition NN.

Figure 3: New Spending Requirements Under Proposition NN. This chart is in the printed Blue Book on page 44.

How will the K‑12 funding be used?

Money in the Children’s Account must first be used for increased teacher pay and retention, access to career and technical courses, and smaller class sizes. This money will be distributed to school districts and charter schools that then decide how to spend this money within allowable uses. They must post downloadable, sortable information online about how they spent the money.

The amount required to be spent for these purposes will grow each year for ten years, and then remain flat in later years. The amount is expected to be about $110 million in the first year, $220 million in the second year, and may grow to between $1 billion and $2 billion per year by the end of ten years. These amounts are only paid if enough revenue is retained.

For the first ten years, if the amount spent on teacher pay and retention, career and technical courses, and smaller class sizes is less than half the amount in the account, then the measure requires additional spending on disability services, school services, and increasing instructional hours, such that at least half the amount in the account is spent on K-12 education overall. Funding for disability services, school services, and increasing instructional hours is estimated at about $130 million in the first year and $20 million in the second year. The state legislature will determine how to allocate these funds to schools and districts.

How will the money for children’s programs be used?

In the first ten years, any money remaining in the account after K-12 spending must be spent on programs that support children, prioritizing full-day preschool, child care, and other programs that help

children be successful in school. The state legislature will determine how to spend this money, which is estimated to be about $240 million in the first year and $230 million in the second year.

How will funding allocations change after the first ten years?

After ten years, the measure requires that a flat amount be dedicated to K-12 education each year for increased teacher pay and retention, access to career and technical education, and smaller class sizes. Any remaining money in the Children’s Account may be spent on any purpose as determined by the state legislature.

How does Proposition NN interact with other measures?

Proposition 137 reduces the amount of revenue the state collects that is subject to the TABOR limit. This measure will not affect the Proposition NN limit. However, if the measure passes, the amount of money the state will actually keep and spend under Proposition NN may be reduced or eliminated.

Arguments For Proposition NN

1) Proposition NN raises teacher pay, reduces class sizes, and improves career and technical education, benefitting every school district in the state. A state study found that Colorado’s schools face a funding shortfall of $3.5 billion, or about $4,000 per pupil. Proposition NN redirects money the state already collects to Colorado’s kids and classrooms, keeping experienced teachers in the classroom and expanding course options and support. The measure pairs the investment schools need with the accountability taxpayers deserve.

2) Proposition NN frees up funds that should already be supporting Colorado’s children. The price of educating and caring for a child grows year after year, and the current revenue limit does not keep pace. As a result, the state is falling behind on the services that families depend on most. Permanent relief from this limit is long overdue. Proposition NN uses existing revenue to address the real and rising costs of child care, universal preschool, and other early childhood needs.

Arguments Against Proposition NN

1) Proposition NN is essentially a tax increase, permanently eliminating or reducing TABOR refunds. TABOR refunds are a taxpayer right. Eliminating or sharply reducing those refunds means that government will keep more of the money that families earn. For households already stretched thin, losing TABOR refunds is a significant financial hit. TABOR was enshrined in the state constitution to protect taxpayers against unchecked government growth.

2) Proposition NN eventually hands the state over $5 billion per year at the expense of Colorado families. Funding for Colorado schools has increased 25 percent over the last five years, while enrollment continues to decline. Before reaching deeper into taxpayers' pockets, the government should demonstrate it has exhausted every avenue to reduce wasteful spending, eliminate redundant programs, and deliver existing services more efficiently.

Information about the organizations supporting and opposing this measure is available on the Colorado Secretary of State's website:

www.coloradosos.gov/pubs/elections/Initiatives/ballot/contacts/2026.html

Fiscal Impact of Proposition NN

Taxpayer Impacts

Proposition NN is expected to reduce the amount refunded to taxpayers by $329.9 million in the current 2026-27 budget year, $521.0 million in the 2027-28 budget year, and by varying amounts in future years. This eliminates TABOR refunds for budget years 2026-27 and 2027-28. Table 1 shows estimated TABOR refunds under Proposition NN for certain income levels.

Table 1: Estimated TABOR Refunds for Certain Income Levels (Blue Book p. 46)

Adjusted Gross Income2027 Current Law: Single Filers2027 Current Law: Joint Filers2027 Prop. NN: All Filers2028 Current Law: Single Filers2028 Current Law: Joint Filers2028 Prop. NN: All Filers
$50,000$21$42$0$39$58$0
$75,000$28$56$0$58$86$0
$100,000$28$56$0$68$96$0
$200,000$38$76$0$121$162$0
$500,000$65$130$0$276$352$0

Note: This table assumes that taxpayers claim the standard deduction and no other deductions. This table shows TABOR refunds for individual taxpayers, not corporations. Corporations are not expected to receive TABOR refunds in 2027, and are expected to receive smaller TABOR refunds than individuals at the same income level in 2028.

A forecast of state revenue subject to TABOR is not available beyond budget year 2027-28. The impact of Proposition NN on TABOR refunds will vary significantly across different years, such that it could have no impact on TABOR refunds in some years and reduce them by over $1,000 per taxpayer in other years. The actual amount that the measure reduces TABOR refunds will depend on how much money the state collects above the current TABOR limit in future years.

State Spending

The measure increases state spending by an estimated $329.9 million in budget year 2026-27 and $521.0 million in budget year 2027-28 on net, and by varying amounts in future years. Changes in state spending are shown in Table 2.

Table 2: Changes in State Spending Under Proposition NN (Blue Book p. 47)

UseCurrent Year 2026‑27Budget Year 2027‑28
Property Tax Reimbursements$0$206.1 million
K-12 Education$241.5 million$234.0 million
Programs That Support Children$241.5 million$234.0 million
General Government Purposes-$153.1 million-$153.1 million
Office of State Auditor$0$20,000
Total Change in Spending$329.9 million$521.0 million

As shown in Table 2, $153.1 million that would be available for the general state budget under current law is instead deposited in the Children’s Account for budget years 2026-27 and 2027-28 only. This reduces General Fund spending in each of these two years.

Long‑term spending. After ten years, there is no longer a requirement for half of the money in the account to be spent on K-12 education and half on children’s programs. Beginning in the 2036-37 budget year, the measure increases state spending for property tax reimbursements and funding for teacher pay and retention, smaller class sizes, and career and technical education. Any remaining funds may be used for any purposes as determined by the state legislature.

School Districts

Proposition NN increases state funding for school districts by an estimated $241.5 million in budget year 2026-27 and $234.0 million in budget year 2027-28. Funding for teacher pay and retention, smaller class sizes, and career and technical education will be distributed based on each school district’s percentage of statewide school finance funding under the state’s new school finance formula. Funding for school services, disability services, and increasing annual instructional hours will be distributed in a manner determined by the state legislature.

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Full text of the measure

Word for word from the Blue Book, pages 84 to 88 (PDF ). Where the measure changes existing statutes, new wording is in CAPITAL LETTERS, as in the printed booklet.

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