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Meaningful progress. Important work still ahead.

In the first term the focus was transparency, efficiency and customer service. Here is what one final term will deliver for Ada County taxpayers.

Priority 01

Assessments that are accurate, fair and consistent.

Every property owner deserves a valuation that reflects their neighborhood’s market — and an office that can explain exactly how it got there.

Idaho is a non-disclosure state, and only about 60% of sales run through the MLS. That means fair assessment is not automatic; it takes real analysis. Rebecca’s office gathers as much data as possible on every transaction and assesses by neighborhood, recognizing that values in Boise and values in Meridian move differently.

Commercial properties add another layer of complexity. The standard is the same: well-supported valuations the team can clearly justify, parcel by parcel.

  • Neighborhood-level analysis rather than one-size-fits-all countywide adjustments
  • Maximum data collection on each transaction to offset Idaho’s non-disclosure limits
  • Every assessment defensible and explainable to the property owner
Boise skyline and neighborhoods in Ada County
Priority 02

Replace the 30-year-old software running the county’s tax system.

This is the single most important unfinished item — and the one almost nobody sees.

30

Years Old

The system that maintains Ada County’s property records, assessed value records and tax records is approaching three decades of age. It is difficult to update and increasingly hard to support.

239K

Parcels at Stake

More than 239,000 parcels of property depend on that system for accurate records — and so does every taxing district that draws revenue from them.

$8M

The Investment

A long-overdue upgrade Rebecca will keep advocating for. It is not a departmental convenience; it underpins the accuracy, security and reliability of the county’s entire tax system.

Why it matters now: aging software is a risk, not just an inconvenience. If the system holding two hundred thousand property records fails, the consequences land on taxpayers and every taxing district in Ada County. Replacing it is the responsible thing to do before that happens — not after.
Rebecca Arnold speaking at a public meeting
Priority 03

Customer service worth showing up for.

For most residents, the Assessor’s Office is the DMV counter and the assessment notice in the mailbox. Both should be easy.

Rebecca has focused on excellent public service and adding new services since taking office — including driver’s license access without an appointment. The next term completes additional office locations to make service more convenient across a growing county.

  • Finish the additional DMV offices for convenient, closer-to-home service
  • Continue expanding services residents actually ask for, including appointment-free options
  • Keep reinforcing a culture of responsiveness and accountability across the office
  • Staff trained and prepared to walk any resident through how their property was assessed
Priority 04

Keep working to lower the property tax burden.

The Assessor does not set tax rates. But the Assessor can be the most informed voice in the room when the legislature writes property tax law.

Rebecca has worked closely with the Idaho Legislature to support property tax relief efforts, including enhancements to the Homeowners Exemption, and has taken a proactive approach to make sure proposed legislation avoids unintended consequences. During her tenure, those efforts have contributed to meaningful tax relief for Ada County residents.

She is equally committed to making sure relief reaches the people it was written for — particularly seniors and residents on Social Security. Her office has taken steps to proactively notify eligible residents about the programs available to them.

Rebecca Arnold with Ada County residents in downtown Boise
On the Issues

Straight answers

The questions Ada County residents ask most — answered directly by Rebecca.

Why are you running for re-election?

I have been honored to serve as your Ada County Assessor for nearly four years. I am seeking re-election for one final term to continue streamlining and improving the operations of the Assessor’s Office, to complete the replacement of the thirty-year-old software the office currently uses, and to complete the additional offices that provide convenient, improved customer service at our DMV locations.

We’ve made meaningful progress, but there is important work ahead. In my first term we focused on improving transparency, efficiency and customer service. Looking forward, the top priority is replacing the system that manages over 239,000 properties. It is outdated, difficult to update, and creates real risk since our entire tax system depends on it.

How do you ensure valuations are fair and uniform?

We gather as much data as possible on each transaction to inform our assessments. Because Idaho is a non-disclosure state and only about 60% of sales go through the MLS, this requires careful analysis.

We assess properties by neighborhood, recognizing that values vary significantly — for example, between Boise and Meridian. Commercial properties present additional complexity, but our team consistently produces well-supported valuations and can clearly justify each assessment.

How will you address the impact of rapid housing inflation?

The Assessor’s Office does not have the authority to set or control housing prices or inflation. Our role is to ensure assessments reflect current market conditions fairly and accurately.

That said, programs like the Homeowners Exemption help reduce the tax burden. I’m especially committed to ensuring seniors and those on Social Security are aware of available relief programs, and we’ve taken steps to proactively notify eligible residents about these opportunities.

How do you communicate assessment methodology clearly to citizens?

We’ve made significant improvements in how we communicate with the public. Our website now provides detailed information on assessment methods, including historical data, and has been upgraded in collaboration with our IT team.

Equally important, we emphasize strong customer service — ensuring staff are prepared to clearly explain how properties are assessed. I will continue reinforcing this standard so citizens feel informed and supported.

What would you do to make the assessment process more transparent?

We’ve already taken meaningful steps to improve transparency by expanding access to information and making assessment data more understandable. Our goal is to ensure citizens can clearly see how their property was assessed and why.

Moving forward, we will continue refining how we present this information and support staff in helping residents navigate and understand the process.

What will you do to lower the property tax burden in Ada County?

While the Assessor’s Office does not set tax rates, we have worked closely with the legislature to support property tax relief efforts, including enhancements to the Homeowners Exemption. I’ve taken a proactive approach to ensure proposed legislation avoids unintended consequences.

I’m proud that during my tenure, these efforts have contributed to meaningful tax relief for Ada County residents.

What makes you qualified for this role?

Prior experience in this office, and sixteen years of prior elected experience as an Ada County Highway District Commissioner setting and administering budgets to ensure tax dollars are used efficiently.

I also hold a bachelor’s degree in accounting, a master’s degree in business administration with a finance emphasis, and a doctorate in law — along with 38 years of commercial and residential real estate experience.

If re-elected, what will you pursue in your first year?

Continue to improve customer service and expand services to our citizens. Continue to assure that property value assessments are accurate, fair and consistent. Continue to update processes in the office and replace the nearly thirty-year-old software used to maintain the property records, assessed value records and tax records of the 239,000+ parcels of property in Ada County.

And continue to work with elected officials and the legislature to evaluate and pass legislation that lessens the property tax burden.

How long have you lived in Ada County?

I moved to Ada County on June 2, 1987. I lived in four states at various times before moving to Idaho almost thirty-nine years ago.

Make a Plan to Vote

Your vote decides who values your property.

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  • General ElectionTuesday, November 3, 2026
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