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Markup on cost means adding the markup percentage to the cost: $80,000 × 1.25 = $100,000. Markup on cost and margin on sales produce different results — always clarify which method is being used.

Markup is the profit added as a percentage of cost. Gross margin (gross profit margin) is profit expressed as a percentage of the selling (contract) price. A 25% markup ≠ 25% margin.

Break-even = Fixed Costs ÷ (1 − Variable Cost Ratio) = $10,000 ÷ (1 − 0.70) = $10,000 ÷ 0.30 = $33,333. At this revenue, total costs equal total revenue.

A fixed cost does not move with the amount of work: the office rent is the same whether one job runs or ten, so it is overhead recovered across all of them. Subcontractor fees, job materials and fuel burned on the job all scale with the work and are direct, variable costs charged to the job that consumed them. The practical caution is that some costs sit between the two: a general liability premium is often rated on payroll or receipts and audited at year end, so it is less strictly fixed than rent.

The stem asks for DIRECT job cost — the costs traceable to this project. Materials $30,000 + labor $20,000 + subcontractors $15,000 = $65,000 (a). The $10,000 overhead allocation is an INDIRECT cost: it is a share of office rent, insurance and administrative salaries spread across every job, not a cost caused by this one. Adding it gives $75,000 (b), which is the job's fully loaded cost, not its direct cost — that substitution is the whole trap. (c) $50,000 drops the subcontractors, and (d) $45,000 counts only materials and overhead.

Simple interest = Principal × Rate × Time = $50,000 × 0.08 × 0.5 = $2,000. For 6 months (half year), use 0.5 as the time factor.

The gap is a timing gap: payroll, suppliers and subcontractors must be paid weeks before the owner pays the progress billing, and retention holds back part of it longer still, which is why a profitable job can still leave the bank empty. An overhead rate set too low destroys margin, but that is a pricing error and shows up as loss rather than as a cash gap. Finishing early accelerates billing and helps cash. And full depreciation is a book event with no cash effect at all.

$50,000 × 1.15 (overhead) = $57,500; $57,500 × 1.10 (profit) = $63,250. Overhead is applied first to the cost, then profit is applied to the overhead-loaded cost.

The balance sheet is the point-in-time statement: it lists what the business owns, what it owes, and the owner's equity as of one date, which is why it is sometimes called the statement of financial position. Each wrong answer is a real statement covering a PERIOD rather than a moment. The income statement reports revenue, cost and profit over a period. The statement of cash flows reports cash in and cash out over a period. And the job cost report is an internal document that sets actual cost against the estimate for one project; it is the contractor's most useful report and it is not a financial statement at all.

Growing receivables with shrinking cash means customers owe money but haven't paid. This is a classic cash flow problem — the contractor has earned revenue but cannot collect it timely.

Commercial general liability answers third-party claims for bodily injury and property damage, which is exactly the visitor or neighbour hurt on the site. Workers' compensation covers the contractor's own employees and is the exclusive remedy for them, so it does not reach a third party. Builder's risk insures the structure under construction against physical loss, paying for damage to the work rather than for someone's injury. Errors and omissions covers professional advice and design, a risk a builder usually does not carry.

Under percentage-of-completion, revenue = contract value × percentage complete = $200,000 × 40% = $80,000. This method matches revenue to the work actually performed.

A retainage clause lets the owner hold back part of each payment until the work is complete (d), as security that the contractor will finish and correct defects. California now caps the percentage: Public Contract Code §7201 holds most public works to 5%, and Civil Code §8811 holds private works to 5% for contracts entered into on or after January 1, 2026, so the 10% once customary on private jobs survives only for earlier contracts and the statute's narrow exceptions. (a) reverses the payment chain — retention flows down, not around it. (b) confuses retention with a contingency allowance, which is budgeted into the price rather than withheld from it. (c) describes liquidated damages, a separate remedy for delay.

The current ratio is current assets divided by current liabilities, so 0.8 means eighty cents of short-term resources against every dollar of short-term obligation and the bills due this year exceed what is on hand to pay them. Having more current assets than liabilities would put the ratio above 1.0, the opposite of this figure. A ratio under 1.0 is the definition of weak liquidity, not strong. And the current ratio says nothing about profit, which comes from the income statement.

A schedule of values divides the contract sum into line items by trade or phase, and each progress application states how complete each line is, so payment follows the work actually done. The overhead rate is computed from the company's own costs and is an input to the bid, not something the schedule produces. Licence classifications come from the CSLB and the scope of each subcontract. And the overtime schedule is a labour-planning matter governed by the wage and hour rules.

California law limits down payments on home improvement contracts to the lesser of $1,000 or 10% of the contract price. Demanding more is a violation of the Contractors State License Law.

Overhead is the indirect cost of keeping the business open — office rent, utilities, insurance, administrative wages, vehicle and equipment carrying cost — none of which can be charged to one job, so it is recovered through markup across all of them. Direct labour and job materials are exactly the costs that can be charged to a job. And profit is what remains after overhead is covered, which is why a markup that recovers only profit leaves the overhead unpaid.

Payments for services to someone who is not an employee are reported on Form 1099-NEC once they reach the annual threshold, which is $2,000 for tax year 2026; the $600 figure applied through tax year 2025. At $4,500 the payment is well over the line either way. A W-2 goes only to an employee on payroll. A W-9 is collected from the payee to get their taxpayer identification number and is never issued to them. Form 941 is the employer's own quarterly payroll return and is filed with the IRS rather than given to a payee.

Employers issue a Form W-2 to each employee, reporting annual wages and amounts withheld for income, Social Security, and Medicare taxes. The 1099-NEC is for non-employees, and the W-9 collects a payee's taxpayer identification number.

An Employer Identification Number (EIN) is the federal tax ID a business uses to report and deposit payroll taxes. A CSLB license number identifies the contractor for licensing, not for federal tax reporting.

FICA withheld = $2,000 × 7.65% = $153.00. This combines Social Security ($2,000 × 6.2% = $124) and Medicare ($2,000 × 1.45% = $29).

FUTA is funded solely by the employer; nothing is withheld from employees for it. Income tax, the employee Social Security share, and California SDI are all withheld from the worker's pay.

Misclassification makes the contractor liable for the payroll taxes that should have been withheld and paid — income tax, Social Security and Medicare, unemployment — plus penalties and interest, with Labor Code §226.8 adding $5,000 to $25,000 per wilful violation and workers' compensation exposure on top. Bonding capacity may suffer as a consequence, but only after the liability lands. A fictitious business name filing is a county registration and is untouched. And material prices are set by suppliers, not by how workers are classified.

With no employer withholding, IRC §6654 requires a sole proprietor to pay income tax and self-employment tax in quarterly estimated instalments as the income is earned, and an underpayment brings a penalty even if the April return is paid in full. Paying only in April therefore leaves the penalty in place. A W-2 is a year-end wage statement for employees and has no monthly payment attached. And waiting for a sale of the business ignores tax on the annual profit entirely.

26 CFR §31.6302-1 puts an employer on a monthly or semiweekly deposit schedule according to the total employment tax reported during a lookback period, so the bigger the payroll liability, the more often the deposits fall due. Licensing tells the IRS nothing about payroll. The trade performed and the county of the office affect other obligations — classification, local business tax — but not the federal deposit rhythm, which is keyed to dollars of liability alone.

On the cash method under IRC §446(c)(1), revenue is recorded when the money is actually or constructively received and expense when it is paid, so the ledger follows the bank. Mailing the invoice is the accrual trigger, because the revenue is earned at that point. Signing the contract creates an obligation but earns nothing yet. And recognising revenue at a stage of completion is the percentage-of-completion method used for long-term contracts, which is neither cash nor simple accrual.

Accrual-basis accounting matches revenue to the period in which it is earned and expenses to the period in which they are incurred, giving a more accurate picture of profitability than cash basis.

The income statement, also called the profit and loss statement, gathers revenue and expense over a month, quarter or year and ends in net profit or loss. The balance sheet reports position at a single date, not performance over time. A schedule of values is a contract document dividing the price into line items for billing, not a financial statement. And the statement of changes in equity does cover a period, but it explains movements in equity rather than how the profit was earned.

The balance sheet rests on Assets = Liabilities + Owner's Equity, which is why every entry keeps the two sides level. Revenue minus expenses is the income statement's equation and produces profit, not a balance. Adding liabilities to assets double-counts what is owed: equity is assets less liabilities, not their sum. And assets minus equity gives liabilities, never revenue, which belongs to a different statement altogether.

Owner's Equity = Assets − Liabilities = $400,000 − $250,000 = $150,000. Equity is the residual interest in the assets after liabilities are paid.

Working capital = Current Assets − Current Liabilities = $90,000 − $60,000 = $30,000. Working capital measures the short-term funds available to operate the business.

Gross profit = Contract Price − Job Costs = $120,000 − $90,000 = $30,000. Gross profit is the amount remaining to cover overhead and produce net profit.

Gross profit = $200,000 − $150,000 = $50,000. Gross margin = Gross Profit ÷ Selling Price = $50,000 ÷ $200,000 = 25%.

When margin is based on selling price, Selling Price = Cost ÷ (1 − Margin) = $48,000 ÷ (1 − 0.20) = $48,000 ÷ 0.80 = $60,000. Note this differs from simply adding 20% to cost.

A 25% markup on a cost of $100 produces a selling price of $125. The margin = profit ÷ selling price = $25 ÷ $125 = 20%. A 25% markup always equals a 20% margin.

Overhead rate = Total Overhead ÷ Total Direct Costs = $120,000 ÷ $600,000 = 20%. Each job is then loaded with 20% of its direct costs to recover overhead.

Direct costs $70,000 × 1.15 = $80,500 (costs plus overhead). $80,500 × 1.10 = $88,550 (adding profit). Overhead is applied first, then profit on the loaded cost.

Straight-line depreciation = (Cost − Salvage Value) ÷ Useful Life = ($45,000 − $5,000) ÷ 5 = $40,000 ÷ 5 = $8,000 per year.

Depreciation allocates the cost of a long-lived asset across the years that use it, and no money leaves the business when the entry is made, which is why it reduces book profit without touching cash. The loan payment is a separate cash event and is unrelated to the schedule: an asset bought outright is still depreciated. A rise in market value is appreciation, the opposite direction. And depreciation belongs to overhead unless the machine is charged out to one job by the hour, in which case it reaches the job as equipment cost rather than as depreciation.

The quick ratio measures the ability to pay short-term debts using the most liquid assets, so it excludes inventory because inventory may not convert to cash quickly. The current ratio includes all current assets.

Simple interest = $30,000 × 0.06 × 3 = $5,400. Total repaid = principal + interest = $30,000 + $5,400 = $35,400.

Break-even revenue = Fixed Costs ÷ (1 − Variable Cost Ratio) = $18,000 ÷ (1 − 0.60) = $18,000 ÷ 0.40 = $45,000.

Retention = 5% x $150,000 = $7,500 (b), held by the owner until the project is accepted, which the contractor must plan for in its cash flow. Civil Code §8811 caps private-works retention at 5% for contracts entered into on or after January 1, 2026, and Public Contract Code §7201 sets the same ceiling on most public works. (c) $15,000 applies the 10% that was customary on private jobs before 2026. (d) $142,500 is the amount paid out, not the amount held. (a) $1,500 is 1%, a decimal slip.

Retention is money already earned but held back until the work is complete and accepted, while wages, materials and subcontractors still have to be paid on time, so the contractor funds the last slice of every job out of its own pocket. It does not change the overhead rate, which is computed from the company's own costs. It is not a tax and never goes to the IRS. And it is not added to the price: it is withheld from payments that are already part of the price, which is why Public Contract Code §7107 penalises a public entity that holds it too long.

A contingency is a budgeted reserve for site conditions, small scope surprises and ordinary estimating error, and it is spent only when one of those arises; what is left belongs to the job's result. It is not profit, and treating it as profit means the risk has been priced once and collected twice. Payroll taxes are owed on wages whatever the budget says. And retention is set by the contract and withheld by the owner, so nothing in the contractor's own budget can change it.

Materials such as concrete and lumber are variable costs: the amount spent rises and falls directly with job volume, and each purchase is traceable to a specific job. The other three are classified as overhead because they are NOT chargeable to any single job. Note for practising contractors: a commercial general liability premium is typically rated on payroll or gross receipts and audited at the end of the policy year, so the amount you ultimately pay does move with volume — but it is still overhead for cost-classification purposes, because it cannot be assigned to one project. The exam tests the classification, not the rating method.

Job costing accumulates labor, materials, subcontractor, and other costs by individual project, letting the contractor compare actual costs to the estimate and judge each job's profitability.

Direct costs are traceable to a specific project, such as the wages of workers on that job, its materials, and its subcontractors. Office salaries, headquarters utilities, and advertising are overhead (indirect).

Net profit = Revenue − Job Costs − Overhead = $800,000 − $560,000 − $160,000 = $80,000.

Net profit margin = Net Profit ÷ Revenue = $60,000 ÷ $750,000 = 0.08 = 8%.