Tax Advisor interview questions

A tax system raises public revenue and uses defined rules to distribute the burden among taxpayers.

• Revenue funds services such as infrastructure, education, health care, and public administration.
• Tax rates, allowances, and credits can redistribute income or encourage activities such as investment.
• Clear assessment, collection, and enforcement rules make liabilities predictable and collectible.

Taxing powers are divided by law so each level of government may impose specific taxes or share their revenue.

• A national government commonly administers income, corporate, customs, or broad consumption taxes.
• Regional authorities may levy state or provincial income, sales, property transfer, or payroll-like taxes.
• Local governments often rely on property taxes, local fees, or a legislated share of national taxes.

Tax law comes from binding legislation and other authorities that interpret or implement it.

• Constitutions and tax statutes establish taxing powers, taxpayers, bases, rates, and core obligations.
• Regulations explain how statutory provisions operate in practice within delegated authority.
• Tax treaties, court decisions, and official administrative guidance also affect how a rule is applied.

I follow the hierarchy of authority, with a valid statute generally controlling inconsistent subordinate guidance.

• A regulation must stay within the power delegated by the statute and cannot rewrite the statute.
• Administrative notices, manuals, and FAQs may explain practice but usually carry less authority than legislation or regulations.
• A controlling court decision or treaty may change the result, so jurisdiction and effective date still matter.

A taxpayer is the person or entity on whom tax law places a tax liability or filing obligation.

• The taxpayer may be an individual, corporation, partnership, trust, estate, or another legally recognized person.
• Liability arises when the taxpayer meets the law's connecting facts, such as residence, income, ownership, or a transaction.
• Another party may collect the tax, but that does not necessarily replace the taxpayer who bears the legal liability.

A tax agent is a party required to calculate, withhold, and remit another taxpayer's tax to the authority.

• An employer commonly withholds income tax from an employee's wages.
• A payer may withhold tax from dividends, interest, royalties, or payments to a nonresident.
• The agent reports and remits the amount by statutory deadlines even though the income belongs to the recipient.

Tax residence connects a person or entity to a jurisdiction and often determines the scope of income that jurisdiction may tax.

• An individual may become resident through days present, a permanent home, domicile, or other statutory ties.
• A company may be resident by incorporation, place of effective management, or another local test.
• Residents are often taxed on worldwide income, while nonresidents are usually taxed only on local-source income.

Residence-based taxation follows the taxpayer, while source-based taxation follows where income arises.

• A residence jurisdiction may include foreign salary, business profit, interest, and gains in the resident's tax base.
• A source jurisdiction may tax local employment, property, business activity, or investment income earned by a nonresident.
• The same income can fall under both claims, which is why domestic relief and tax treaties exist.

A direct tax is imposed on a person's income or property, while an indirect tax is charged through a transaction.

• Personal income tax and corporate income tax are direct taxes assessed on the taxpayer's income.
• VAT, sales tax, and excise duties are indirect taxes collected by sellers as goods or services are supplied.
• The legal remitter of an indirect tax may be the business even when the economic cost is passed to the customer.

They differ in how the effective tax burden changes as the tax base or income increases.

• A progressive tax applies higher marginal rates to higher bands of taxable income.
• A proportional tax applies one rate to the entire taxable base regardless of its size.
• A regressive tax takes a larger percentage of lower income than higher income, even if the statutory rate is uniform.

A workable tax rule identifies who pays, what is taxed, how the amount is measured, and when it is due.

• The taxpayer and taxable object identify the liable person and the income, property, or transaction within scope.
• The tax base and rate convert the taxable object into a monetary liability.
• The tax period, calculation procedure, filing deadline, and payment deadline determine timing and compliance.

A taxable event is the fact or transaction that triggers a tax consequence under the law.

• Paying wages may trigger payroll withholding and employer contributions.
• Selling goods may trigger output VAT when the time-of-supply rule is met.
• Disposing of an asset may trigger recognition of a gain or loss.

The tax period measures activity, while filing and payment deadlines specify when reporting and cash settlement must occur.

• A calendar year or quarter can be the period over which income, sales, or payroll is aggregated.
• The return is filed after the period by the date set in law, sometimes with an available extension.
• Payment may be due before, with, or after the return, and an extension to file does not automatically extend payment.

The cash method generally recognizes amounts when received or paid, while the accrual method recognizes them when earned or incurred.

• A cash-method consultant usually recognizes a fee when the customer pays it.
• An accrual-method business may recognize revenue when it performs the service and obtains a fixed right to payment.
• Tax law can override either method for specific items, so book timing is not automatically tax timing.

Gross income is income before permitted reductions, while taxable income is the amount remaining after tax-law adjustments.

• Gross income can include wages, business receipts, rent, interest, dividends, and taxable gains.
• Statutory exclusions remove qualifying amounts before or during the calculation.
• Allowable expenses and deductions reduce the relevant income base to arrive at taxable income.

Both can escape tax, but an exclusion keeps an amount outside the income base while an exemption removes a defined person, item, or transaction from tax.

• Excluded income is not included in gross or taxable income when statutory conditions are met.
• An exemption may apply because of the taxpayer's status or the nature of the income or transaction.
• The labels and reporting treatment vary by jurisdiction, so the exact statutory rule controls.

A business expense is generally deductible when tax law permits it, it relates to earning business income, and it is properly supported.

• Rent for business premises, employee wages, and business supplies are common current expenses.
• Personal spending, fines, and specifically disallowed costs are not deductible merely because the business paid them.
• An invoice, contract, payment record, and business purpose support the amount and its connection to the activity.

A current expense is deducted for the relevant period, while a capital expenditure is added to an asset's basis and recovered over time.

• Routine utilities or office supplies usually support current operations and are expensed.
• Buying equipment or making an improvement with a lasting benefit is commonly capitalized.
• Capitalized cost is recovered through depreciation, amortization, or the gain calculation on disposal.

A deduction reduces taxable income, while a credit reduces the calculated tax liability.

• A 1,000 deduction saves 200 when the applicable tax rate is 20 percent.
• A 1,000 credit generally reduces tax by the full 1,000, subject to its statutory limits.
• Deductions therefore depend on the taxpayer's rate, while credits are applied after tax is calculated.

A refundable credit can produce a payment beyond tax owed, while a nonrefundable credit generally stops at zero liability.

• If tax is 600 and a refundable credit is 1,000, the excess 400 may be refunded.
• With a nonrefundable 1,000 credit, current tax falls to zero but the unused 400 is not automatically paid.
• Some systems allow unused nonrefundable credits to carry forward or back under specific rules.