Fifty-six percent of Utahns support an initiative seeking to add $715 million in annual public school funding by boosting income and sales taxes, according to a new poll.

That number is in line with recent polls on the Our Schools Now campaign showing a consistent, but not necessarily comfortable, cushion of support for the proposed ballot measure.

But the new survey — conducted for The Salt Lake Tribune and the University of Utah’s Hinckley Institute of Politics — also suggests opposition to Our Schools Now is eroding. Only 38 percent of Utahns say they “strongly” or “somewhat” oppose the initiative, a decline of 5 percentage points since October.

“We have been polling this question for a year now and the support has remained strong,” said Hinckley Institute Director Jason Perry. “They should be encouraged that the opposition is going down as well. Both metrics went in the right direction for them.”

A total of 803 registered Utah voters participated in the poll, conducted Jan. 15-18 by Salt Lake City-based Dan Jones and Associates. The survey has an error margin of plus or minus 3.5 percentage points.

Ron Jibson, a co-chairman of Our Schools Now, said the poll results are encouraging with several months to go before November’s election. He said the focus so far has been meeting requirements to qualify for the ballot, leaving little ability for the campaign to make its case to voters.

“Most of what people have heard is tax increase,” Jibson said. “We haven’t had the opportunity to go out and really do a lot of mass media on what the initiative would really create.“

If approved by voters, Our Schools Now would lift Utah’s income-tax rate from 5 percent to 5.45 percent and boost the sales-tax rate from 4.7 percent to 5.15 percent. Those changes would be implemented over a period of three years, with new money raised to be distributed to public schools — including colleges and universities — on a largely per-student basis.

With the 2018 Utah Legislature now underway, lawmakers and government leaders have discussed the potential of boosting school spending with existing resources in an attempt to forestall or impede Our Schools Now.

Jibson said he appreciates the Legislature’s work on funding education. But those efforts have largely focused on keeping pace with enrollment growth and inflation costs, he said, while Utah remains last in the nation for its school spending levels.

“We would love to see it solved with the lawmakers,” Jibson said. “But it’s going to take something quite monumental.”

Austin Cox, spokesman for Our Schools Now, pointed to recent study by Utah Foundation that found tax policies over the past 20 years had diverted $1.2 billion away from public education.

“The [proposed] $700 million in annual funding is already a modest amount,” Cox said. “Our schools definitely have needs over $700 million.”

Results from the Tribune-Hinckley poll show majority support for the initiative among Republican, Democratic and unaffiliated voters, as well as for male and female voters.

Jibson said the campaign is on track to complete its signature-gathering. The initiative must secure more than 113,000 signatures from registered voters in at least 26 of Utah’s 29 Senate districts.

After previous polls, Perry said the initiative might be expected to shed supporters in the final weeks as voters face the prospect of raising their own taxes.

But after four Tribune/Hinckley polls showing majority support, he said the results suggest that whether or not Our Schools Now succeeds, the broader topic of education funding is of interest to Utah voters.

“The reality is that everyone, from every political corner, is talking about how to increase funding for education,” Perry said. “Utahns want increased funding — whether you’re a Republican or a Democrat.”