- The IA-RES exam has 120 scored questions: 80 national, 40 Iowa-specific, in 180 minutes.
- Passing requires 56 of 80 national questions correct and 28 of 40 state questions correct.
- Contracts is the single largest domain on both the national and Iowa sections, at 19% nationally.
- A Commission-approved 60-hour prelicense course completed within 12 months of test day is required to sit for the exam.
What Is the IA-RES Certification?
IA-RES stands for the Iowa Real Estate Salesperson Exam, the licensing test every prospective Iowa real estate agent must pass before they can practice under a sponsoring broker. The exam is governed by the Iowa Real Estate Commission, part of the Iowa Department of Inspections, Appeals, and Licensing, and it is delivered through PSI at test centers or via remote proctoring. If you're just getting oriented, our overview pages on what IA-RES is and what the acronym means are good starting points before you dig into domain-level prep.
Unlike a generic multistate real estate exam, the IA-RES blends national real estate principles with a substantial Iowa-only portion covering state licensing law, trust accounts, and disciplinary procedure. That split is the single most important thing to understand about this exam, and it shapes almost every study decision you'll make.
Exam Format and Scoring
The IA-RES is a $95 computer-based exam consisting of 120 scored questions, split into 80 national questions and 40 Iowa state questions, with a total time allowance of 180 minutes. PSI may also insert 5 to 10 additional unscored experimental questions that look identical to scored items but don't count toward your result - you won't know which ones they are, so every question deserves your full attention.
To pass, you need at least 56 of the 80 national questions correct and at least 28 of the 40 state questions correct. These are two separate pass/fail thresholds, not one combined score, so a strong national score cannot rescue a weak state score and vice versa. For a deeper breakdown of exactly how scoring works, see our dedicated IA-RES Passing Score guide.
Key Takeaway
Because national and Iowa scores are graded independently, allocate real study time to both halves - a candidate who only crams national real estate principles can still fail on the Iowa section alone.
If you want a fee-by-fee look at what the $95 exam cost sits alongside (prelicense course, insurance, background check), our IA-RES Certification Cost breakdown lays out the full financial picture. And if you're wondering how tough the exam actually feels in practice, How Hard Is the IA-RES Exam? walks through difficulty by domain.
National Domains (1-11)
The 80 national questions are drawn from Domains 1 through 11, which mirror the real estate concepts tested across most U.S. jurisdictions. Contracts is the heavyweight here.
| Domain | Topic | Weight |
|---|---|---|
| 1 | Property Ownership | 10% |
| 2 | Land Use Controls | 5% |
| 3 | Valuation | 8% |
| 4 | Financing | 10% |
| 5 | Contracts | 19% |
| 6 | Agency | 13% |
| 7 | Property Disclosures | 7% |
| 8 | Property Management | 3% |
| 9 | Transfer of Title | 6% |
| 10 | Practice of Real Estate | 12% |
| 11 | Real Estate Calculations | 7% |
Domain 5: Contracts
At 19%, Contracts is the largest national domain, and it stays the largest domain on the Iowa side too (Domain 17). Expect questions on offer and acceptance, contingencies, contract remedies, and the elements that make a real estate contract enforceable.
- Master the difference between bilateral and unilateral contract obligations
- Know standard contingency types and how they affect closing timelines
- Understand remedies for breach on both buyer and seller sides
Domain 6: Agency
Agency questions at 13% test your understanding of fiduciary duties, types of agency relationships, and disclosure obligations to clients and customers.
- Distinguish designated agency from dual agency scenarios
- Memorize the core fiduciary duties owed to a principal
Because Contracts and Agency together make up nearly a third of the national section, candidates who build a domain-by-domain study plan tend to feel more confident on exam day. Our IA-RES Exam Domains Guide covers all 23 areas in depth if you want topic-level detail beyond what's summarized here.
Iowa-Specific Domains (12-23)
The 40 state questions come from Domains 12 through 23. This is the section that trips up candidates who studied only from generic national real estate materials, because none of these topics exist in a one-size-fits-all textbook - they are Iowa Real Estate Commission rules and Iowa Code provisions specifically.
- Domain 12: Licensing Requirements - the pathway to becoming licensed, including prelicense education and application procedures.
- Domain 13: License Maintenance - keeping a license active, renewal cycles, and status changes.
- Domain 14: Disciplinary Actions - suspension, revocation, and voluntary compliance procedures before the Commission.
- Domain 15: Real Estate Education - approved course requirements and continuing education structure.
- Domain 16: Trust Accounts - handling of client funds and recordkeeping obligations.
- Domain 17: Contracts - the Iowa-specific counterpart to Domain 5, and again the largest single Iowa domain.
- Domain 18: Agency - Iowa's agency relationship rules and disclosure statutes.
- Domain 19: Property Disclosure Requirements - Iowa's seller disclosure statute and exemptions.
- Domain 20: Iowa Civil Rights Act of 1965 - fair housing protections under state law.
- Domain 21: Unlicensed Assistants - permitted and prohibited activities for unlicensed staff.
- Domain 22: Broker Responsibilities - supervisory duties owed by sponsoring brokers to salespersons.
- Domain 23: Property Management - Iowa-specific property management licensing and trust obligations.
Eligibility and Registration
Before you can sit for the IA-RES, you must complete a Commission-approved 60-hour prelicense course, and that course must be finished within the 12 months preceding your exam date. Original licensure adds several further requirements beyond passing the exam itself:
- Be at least 18 years old
- Complete three additional 12-hour live courses
- Pass a national criminal history background check
- Carry errors-and-omissions insurance
- Secure a sponsoring broker
PSI offers both test-center and remote-proctored delivery options, so you can choose whichever format fits your schedule and comfort level. Once you pass, your result is valid only through the last working day of the sixth month after your passing date - miss that window and you'll need to retest before you can complete licensure. Our IA-RES Requirements page details the full eligibility checklist, and IA-RES Exam Dates explains how to book a session that fits your prelicense course timeline.
A Domain-Weighted Study Approach
Rather than studying every domain equally, allocate time proportional to weight. Contracts (19% national, plus its Iowa counterpart in Domain 17) and Agency (13% national, plus Domain 18) should anchor your schedule, with lighter domains like Property Management (3% national) getting a lighter touch.
National Foundations
- Property Ownership, Land Use Controls, and Valuation (Domains 1-3)
- Build baseline vocabulary before layering in Iowa-specific rules
Contracts and Agency Deep Dive
- Study Domain 5 and Domain 6 together since they're the two heaviest national domains
- Cross-reference with Iowa Domains 17 and 18 for state-specific contract and agency rules
Remaining National Domains
- Financing, Property Disclosures, Transfer of Title, Practice of Real Estate, Calculations (Domains 4, 7-11)
- Drill real estate math problems until formulas feel automatic
Iowa State Domains and Full Review
- Licensing Requirements, Disciplinary Actions, Trust Accounts, Civil Rights Act, Broker Responsibilities (Domains 12-23)
- Take timed practice sessions replicating the 180-minute, 120-question format
This kind of structured, domain-weighted pacing is more useful than generic study hacks, because it directly reflects how points are distributed on your actual scored sections. For a printable version of the highest-yield facts across all 23 domains, bookmark our IA-RES Cheat Sheet. When you're ready to test your recall under realistic conditions, run through timed sets on our practice test platform - simulating the 180-minute window helps you build pacing instincts before exam day.
After You Pass: Licensure and Renewal
Passing the IA-RES is a milestone, not the finish line. You still need to finalize the background check, insurance, and broker sponsorship pieces of licensure before you're actively licensed. Once licensed, staying active requires 36 hours of continuing education per three-year renewal cycle, broken into:
- 8 hours of Law Update
- 4 hours of Ethics
- 24 elective hours
At least 12 of those 36 hours must be completed through live instruction rather than self-paced or online-only formats. Planning your CE calendar early prevents a last-minute scramble at the end of your three-year cycle.
Key Takeaway
Track your CE hours by category as you go - 8 Law Update, 4 Ethics, 24 electives, 12 minimum live - rather than tallying everything at the end of the three-year cycle.
Who Hires IA-RES Holders
A passed IA-RES exam, followed by completed licensure, opens the door to working under a sponsoring broker at a residential brokerage, a commercial firm, a property management company, or an independent brokerage anywhere in Iowa. Because Domain 23 covers property management specifically and Domain 8 addresses it nationally, some newly licensed agents pivot toward property management roles rather than traditional sales. Others lean into the heavy Contracts and Agency weighting by specializing in transaction coordination or buyer representation.
If you're evaluating whether the licensing path is worth the time and course costs involved, our ROI analysis and salary guide dig into the broader career picture, while IA-RES Jobs surveys the kinds of roles newly licensed salespersons typically step into. For a candid look at how difficult candidates generally find the exam relative to its Iowa-specific content, revisit IA-RES Pass Rate and the difficulty guide linked earlier.
Before test day, it's worth reviewing our full IA-RES Study Guide for a first-attempt-focused walkthrough, and running a few sessions on the practice exam platform to see where your domain-level weak spots actually are rather than guessing.
Frequently Asked Questions
The IA-RES has 120 scored questions - 80 national and 40 Iowa state - plus possibly 5 to 10 unscored experimental questions, within a 180-minute time limit.
You need at least 56 of 80 correct on the national section and at least 28 of 40 correct on the Iowa state section. Both thresholds must be met independently.
A passing result remains valid through the last working day of the sixth month after the date you passed, so complete remaining licensure steps within that window.
Yes. You must complete a Commission-approved 60-hour prelicense course within the 12 months before your exam date to be eligible to sit for the IA-RES.
Contracts, since it's the largest domain on both the national side (19%, Domain 5) and the Iowa side (Domain 17), making it the single highest-leverage topic to master.