Exam Cheat Sheet · Quick Reference

Idaho Plumbing Specialty Contractor Exam

Idaho  ·  PSI Services Contractor

Verified, not estimated. Every figure below is drawn from the official exam structure we maintain — question counts, passing standard and topic weighting. Practice questions are grounded in the source law with statute citations. We omit any figure we can't verify rather than guess at it.
Total questions
100
Passing score
75%
Exam time
240 min
Administered by
PSI Services Contractor
Format
Reference materials allowed

Idaho State Portion 100 questions

Contractor's Business and Law Reference Manual Section 1 1 Q · 1%
Business plan components and purposeForms of business organization and their legal characteristicsIdaho contractor licensing requirements and consequences of unlicensed workSelecting professional advisors (accountant, attorney, insurance agent, banker)Checklist for starting a business in IdahoResearching a business before startupFinancial planning elements within a business plan
Contractor's Business and Law Reference Manual Section 2 2 Q · 2%
Business organization methods (sole proprietorship, partnership, LLC, corporation)Steps and checklist for starting a contractor businessSelecting and working with a CPA or LPA accountantSelecting and working with a business attorneySelecting an insurance agent and required business insuranceSelecting a bank and evaluating financial services for small businessesEmployer responsibilities (employment taxes, workers' compensation, immigration verification)Business registration, licenses, and permits requirements
Contractor's Business and Law Reference Manual Section 3 2 Q · 2%
Types of business organization structures in Idaho (sole proprietorship, partnership, LLC, corporation)Liability characteristics of each business entity typeRegistration and filing requirements with the Idaho Secretary of StateDifferences between S Corporation and C Corporation tax treatmentLimited Partnership vs. Limited Liability Partnership distinctionsRequirements for foreign business entities operating in IdahoSecurities regulations and Idaho Department of Finance requirementsProfessional service corporations and professional LLCs
Contractor's Business and Law Reference Manual Section 4 2 Q · 2%
DOPL mission and regulatory boards overviewIdaho license qualification requirements and application processConsequences of working without a required licenseSelecting and working with a professional accountant (CPA/LPA)Selecting and working with a business attorneySelecting an insurance agent for business coverageSelecting a bank and evaluating financial services for a business
Contractor's Business and Law Reference Manual Section 5 20 Q · 20%
Bookkeeping process and financial recordkeeping proceduresFinancial statements: balance sheet, income statement, and cash flow statementCash vs. accrual accounting methodsFinancial ratios: liquidity, efficiency, leverage, and profitabilityDepreciation methods including straight-line and MACRSProject accounting methods: completed contract vs. percentage of completionEquipment leasing, renting, and purchasing decisionsCash flow management and small business financial health
Contractor's Business and Law Reference Manual Section 6 20 Q · 20%
Anti-discrimination laws and protected classes (ADEA, ADA, Title VII, EPA, GINA, Pregnancy Discrimination Act)Employee leave entitlements under FMLAWage and hour requirements under FLSA (minimum wage, overtime, exemptions)Idaho-specific wage payment laws and recordkeeping requirementsFederal contractor labor standards (Davis-Bacon, Service Contract Act, Walsh-Healey, Copeland Anti-Kickback)Idaho new hire reporting requirementsRequired workplace poster obligationsEmployee polygraph protection and background check limitations (EPPA, CCPA)
Contractor's Business and Law Reference Manual Section 7 20 Q · 20%
Types of contractor insurance coverage (liability, builder's risk, automobile, property)Workers' compensation insurance requirements and penalties in IdahoUnemployment insurance employer liability and experience ratingSurety bonds: bid bonds, performance bonds, and payment bondsIndependent contractor vs. employee classification for UI tax purposesMiller Act requirements for federal public works bondingReportable and non-reportable wages for unemployment insurance purposesUnemployment insurance tax due dates, penalties, and filing requirements
Contractor's Business and Law Reference Manual Section 8 7 Q · 7%
Types of bids and competitive bidding proceduresFactors to consider when deciding to bid a jobPlans and specifications componentsEstimation methods: conceptual, preliminary, and detailed estimatesQuantity survey/takeoff process and measurement unitsLabor, materials, and equipment pricing in detailed estimatesGeneral and project overhead costsMarkup, contingency, and profit calculation
Contractor's Business and Law Reference Manual Section 9 8 Q · 8%
Essential elements of a legally valid contractTypes of construction contracts (lump sum, cost plus, time and materials, design-build, etc.)Common and optional parts of a construction contractIdaho statute on retention proceeds in private construction contracts (Idaho Code 29-115)Statute of Frauds requirements for written agreements (Idaho Code 9-505)Breach of contract definition and remediesChange orders and changed work provisionsTermination clause conditions and contract legalities
Contractor's Business and Law Reference Manual Section 10 10 Q · 10%
Five phases of project management (initiation, planning, executing, monitoring/controlling, closing)Project scheduling tools: Critical Path Method (CPM) and Gantt chartsFloat/slack time and earliest/latest start dates in schedulingCost control procedures: variance detection, diagnostics, and corrective actionProject management personnel roles (owner's representative, CM/PM, superintendent, foreman, expediter)Quality control during construction: conformance to design specificationsProject closeout: project close and contract closureInventory control and purchase order systems as cost control methods
Contractor's Business and Law Reference Manual Section 11 5 Q · 5%
OSHA recordkeeping requirements and forms (Form 300, 300A, 301)Employer reporting obligations for fatalities and hospitalizationsOSHA poster and workplace display requirementsConstruction Safety Act and OSH Act overviewOSHA cooperative and voluntary protection programs (VPP, SHARP, OSHA Challenge)OSHA consultation services for small businessesFinancial impact of workplace safety and health programsOSHA training and compliance assistance resources
Contractor's Business and Law Reference Manual Section 12 1 Q · 1%
Federal and Idaho state income tax filing requirements by business entity typeIdaho sales and use tax obligations for contractorsIndependent contractor vs. employee classification using the right-to-control testFederal employment taxes and forms for businesses with employeesContractor/retailer distinction and sales tax responsibilitiesTax recordkeeping requirements and periods of limitationsProperty taxes and taxpayer identification number requirementsIdaho sales tax exemptions applicable to contractors
Contractor's Business and Law Reference Manual Section 13 2 Q · 2%
Right to file a mechanic's or materialman's lien in Idaho (Idaho Code 45-501)Filing requirements and deadlines for lien claims (90-day filing window, county recorder, required claim contents)Priority and ranking of lien claimants (laborers, materialmen, subcontractors, original contractor, engineers/surveyors)Duration of liens and enforcement proceedings (6-month binding period, court action to enforce)Release of mechanic's lien by posting surety bond (bond form, petition process, hearing procedures)General contractor disclosure requirements for residential property (Idaho Code 45-525, lien waivers, insurance proof)Contractor and subcontractor recovery rights and deductions (Idaho Code 45-511)Exemption of materials from execution and personal action to recover debt (Idaho Code 45-514, 45-515)

Key Distinctions

Accrual accounting methodvsCash accounting method

Accrual recognizes economic events by matching revenues to expenses at the time the transaction occurs and is GAAP compliant, while the cash method recognizes them when payment is made or received and is not GAAP compliant (and is not permitted for a corporation, or a partnership with a C corporation partner, with average gross receipts over $5 million).

Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
Leasing equipmentvsRenting equipment

Leasing is a long-term agreement with a locked-in rate, less cash up front and potential tax benefits, while renting is short-term (by the hour, half day, or whole day) with the owner deciding when to return it and no fee for early return.

Contractor's Business and Law Reference Manual, Section 5: Accounting & Finance
Current ratiovsQuick (acid-test) ratio

The current ratio divides current assets by current liabilities, while the quick ratio subtracts inventories from current assets first, giving a more conservative liquidity measure because inventories may not convert quickly to cash.

Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
Lump sum contractvsUnit price contract

A lump sum contract covers the entire project as one total price, while a unit price contract breaks the project into sections each billed separately with its own cost; both set a final price regardless of the contractor's actual costs.

Idaho Contractor's Business & Law Reference Manual, Section 9: Contracts — Lump Sum and Unit Price (Fixed Price) (Page 86)
Named-peril builder's risk insurancevsAll-risk builder's risk insurance

Named-peril covers only losses from items specifically named in the policy, while all-risk is the most common type and provides broader coverage.

Idaho Contractor's Business & Law Reference Manual, Section 7: Insurance – Builders Risk bullet, Page 65
Commercial general liability insurancevsCompleted operations (errors and omissions) insurance

General liability covers claims arising during construction, while completed operations covers third-party injuries or property damage occurring after the contractor has finished the operation.

Idaho Contractor's Business & Law Reference Manual, Section 7: Insurance — Completed Operations
General partnervsLimited partner

A general partner controls the business and is personally liable for partnership debts, while a limited partner contributes capital and shares profits but cannot manage the business and is liable only for the amount contributed.

Division of Occupational & Professional Licenses Contractor's Business and Law Reference Manual (Idaho), Pages 16-17
ADA undue hardship standardvsTitle VII religious accommodation undue hardship standard

Under the ADA undue hardship means significant difficulty or expense judged against employer size, financial resources and business needs — a higher threshold than Title VII's 'more than a minimal burden.'

Idaho Contractor's Business & Law Reference Manual, Section 6 — Americans with Disabilities Act (ADA), Disability Discrimination & Reasonable Accommodation & Undue Hardship
ADA employer coverage thresholdvsADEA employer coverage threshold

The ADA generally applies to employers with 15 or more workers, while the ADEA applies to employers with 20 or more employees.

Idaho Contractor's Business & Law Reference Manual, Section 6 — Americans with Disabilities Act (ADA)
Percentage of completion methodvsCompleted contract method

Percentage of completion recognizes a portion of contract revenue and estimated costs each accounting period (preferred for matching revenue and expenses to the period of benefit), while the completed contract method may only be used for projects finished within two years by contractors whose average annual income is under $10 million over the past three years.

Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
Balance sheetvsCash flow statement

The balance sheet shows liquidity status and ability to meet short-term debt (Assets = Liabilities + Equity), while the cash flow statement summarizes actual or anticipated cash in and out over a period and can be the most valuable report for a contractor because of the importance of cash control.

Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
Independent contractorvsEmployee (Idaho right-to-control test)

An independent contractor must be free from the right of direction and control in contract and in fact; employer control of the manner, method, or mode of the work indicates employee status, method of payment is not controlling, and genuine doubt must be resolved in favor of finding an employee.

Idaho Contractor's Business & Law Reference Manual, Section 7: Insurance — Independent Contractor
Common contract elementsvsOptional contract elements

Specifications (a detailed description of blueprints/plans including material types and quantities) are listed as an optional element of a construction contract, not one of the common parts every construction contract should include.

Idaho Contractor's Business & Law Reference Manual, Page 86-87

Key Terms

Accrual method (matching principle) Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
An accounting method that recognizes economic events by matching revenues to expenses at the time the transaction occurs rather than when payment is made or received; it is GAAP compliant.
Posting Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — Bookkeeping process
The bookkeeping process of totaling all journal entries at the end of an accounting period and transferring them to the general ledger.
Trial balance Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — Bookkeeping process
The act of totaling debit balances and credit balances to confirm that total debits equal total credits.
Negative cash flow Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance
The condition existing when a company's cash outflow exceeds its cash inflow, which can result in the failure of a small business.
Cash (for cash management) Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — Cash Management
Currency and coins on hand, bank balances, and negotiable money orders and checks — specifically not inventory, accounts receivable, or property.
Depreciable property Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — Depreciation
Property you own, used in your business or income-producing activity, that has a determinable useful life and lasts more than one year; property used only for personal activities cannot be depreciated.
MACRS (Modified Accelerated Cost Recovery System) Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — Modified Accelerated Cost Recovery System (MACRS)
A depreciation system under which the deduction is computed using either the declining balance or straight line method at the taxpayer's discretion, with limitations.
IRS Section 179 deduction (2014) Idaho Contractor's Business & Law Reference Manual, Section 5: Accounting & Finance — IRS Section 179 Deduction
A deduction for qualifying equipment purchases limited to $500,000, with a $2 million limit on total equipment purchases before phase-out.
Mutuality of obligation Idaho Contractor's Business & Law Reference Manual, Page 84
The essential contract element described as a 'Meeting of the Minds' — mutual understanding and assent where the parties agree to the same thing, in the same sense, at the same time.
Breach of contract action Division of Occupational & Professional Licenses Contractor's Business and Law Reference Manual (Idaho), Page 87
A civil lawsuit in which the remedies awarded are intended to place the non-breaching party in the position they would be in if not for the breach.
Gantt chart Division of Occupational & Professional Licenses Contractor's Business and Law Reference Manual, Page 93
A type of bar chart that illustrates a project schedule by showing start and finish dates of the terminal and summary elements of a project.
Float (slack) time Idaho Contractor's Business & Law Reference Manual, Page 90
The amount of time a task can be delayed without causing a delay to subsequent tasks or to the project completion date.
Owner's Representative Idaho Contractor's Business & Law Reference Manual, Page 95
A representative of the project owner who relays project information to and from the owner but has no supervisory rights over workers.
Limited Liability Partnership (LLP) Idaho Contractor's Business & Law Reference Manual, Page 16
A partnership in which a partner is not liable for a negligent act committed by another partner or by an employee not under that partner's supervision.
S Corporation Idaho Contractor's Business & Law Reference Manual, Page 18
A US corporate structure in which the firm's income is passed through to stockholders in proportion to their investment and taxed at personal income tax rates.
Professional Service Corporation (Idaho) Idaho Contractor's Business & Law Reference Manual, Page 19
An entity whose name must end with 'chartered,' 'professional association,' 'professional corporation,' or the abbreviations 'PA,' 'PC,' or 'Chtd.'
Certificate of Assumed Business Name Idaho Contractor's Business & Law Reference Manual, Page 16
The filing a General Partnership must make with the Secretary of State when it does not operate under the full names of each owner.
Engagement letter Idaho Contractor's Business & Law Reference Manual, Page 13
A document signed by the accountant and client in advance of work, spelling out fees, scope of work, and other details to avoid misunderstandings.
Cost reimbursement employers (Idaho UI) Idaho Contractor's Business & Law Reference Manual, Section 7: Insurance — Cost Reimbursement Employers
Governmental units and 501(c)(3) nonprofit organizations that may elect to reimburse the Idaho Employment Security Fund for benefit payment costs instead of being assigned an experience rate.
FLSA workweek Idaho Contractor's Business & Law Reference Manual, Section 6 — Fair Labor Standards Act (FLSA), Overtime Pay
A fixed and regularly recurring period of 168 hours (seven consecutive 24-hour periods) that need not coincide with the calendar week and may begin on any day and hour.

Formulas to Know

Balance sheet / owners' equityAssets = Liabilities + Equity; so Equity = Assets − Liabilities (e.g., $37,800 − $30,000 = $7,800)
Current ratioCurrent Assets ÷ Current Liabilities (e.g., $123,450 ÷ $23,450 = 5.26); higher is better
Quick (acid-test) ratio(Current Assets − Inventories) ÷ Current Liabilities
Straight-line depreciation (annual)(Purchase Price − Salvage Value) ÷ Years of Useful Life (e.g., ($50,000 − $5,000) ÷ 9 = $5,000/yr)
Percentage of completion cumulative revenue(Cost incurred to date ÷ Total estimated cost) × Contract price (e.g., ($200,000 ÷ $400,000) × $600,000 = $300,000)
Cash flowCash receipts − cash payments over a given period; equivalently net profit + depreciation, depletion, and amortization charged off
Ending cash balance (cash flow statement)Beginning cash and cash equivalents + net increase in cash (e.g., $1,000 + $10,500 = $11,500)
Net income (income statement)Total Revenue − Total Operating Expenses (e.g., $6,000 − ($1,500 + $1,000 + $250 + $250) = $3,000)
Interest coverage ratioEBIT ÷ Interest Expense; at 1.5 or lower the ability to meet interest expenses may be questionable
General overhead percentageTotal General Overhead ÷ Forecasted Project Income (e.g., $75,000 ÷ $750,000 = 10%)
Equipment charge from internal rental rateRental rate × hours used (e.g., $65.00 × 8 = $520), charged to the project and credited to the equipment's ledger account; rate excludes transport to/from job site and the operator's expense
Idaho UI late payment penalty4% of tax due or $20, whichever is greater, per month or fraction of a month delinquent (e.g., $800 × 4% × 2 months = $64; $501 × 4% × 2 = $40.08)