A worker in the 22% tax bracket is deciding between a traditional 401(k) and a Roth 401(k). She expects to retire at a lower income level and be in the 12% bracket. Which choice is better, and why?
ARoth — she should always pay taxes now to avoid uncertainty later
BTraditional — she should defer taxes now because she'll pay a lower rate in retirement
CIt doesn't matter — the total lifetime tax paid is always the same
DRoth — contributions to a traditional 401(k) are not tax-deductible
The core of traditional vs. Roth is a simple tax-rate comparison: if your rate will be lower in retirement, defer with traditional (pay less tax later). If your rate will be higher in retirement, prepay with Roth (lock in today's lower rate). Here she is in the 22% bracket now and expects 12% in retirement, so traditional wins — she avoids paying 22% now and will pay only 12% on withdrawals. Option C is the key misconception: the total tax is NOT the same; the better account depends entirely on the rate comparison.
Question 2 Multiple Choice
A freelancer has inconsistent income: in odd years she earns $90,000, in even years $60,000. She donates $5,000 to charity each year. Which strategy likely maximizes her tax benefit from charitable giving?
ADonate $5,000 every year, regardless of income, to maintain consistent giving
BDonate $10,000 in odd years (bunching) and nothing in even years, to exceed the standard deduction threshold in high-income years
CDonate $10,000 in even years when income is lower, to reduce taxable income more efficiently
DSplit each year's donation into quarterly payments to better track deductions
Deduction bunching concentrates charitable giving into high-income years to push itemized deductions above the standard deduction threshold, unlocking their full value. In odd years (higher income, higher bracket), a $10,000 donation is more likely to exceed the standard deduction and will be deducted at a higher marginal rate. In even years she takes the standard deduction. Donating evenly each year means she may never exceed the standard deduction threshold — effectively receiving zero tax benefit from her giving.
Question 3 True / False
Receiving a large federal tax refund in April is generally a sign of good financial management — it means you overpaid taxes rather than underpaying.
TTrue
FFalse
Answer: False
A large refund means you lent the government money interest-free throughout the year. The goal of withholding management is to finish the year approximately even — neither owing a large surprise bill (which may trigger underpayment penalties) nor receiving a large refund (which forfeits the time value of that money). A $3,000 refund means $250/month that could have been invested or used to pay down debt sat in the government's hands earning nothing.
Question 4 True / False
Deferring income from a high-earning year to the following year generally reduces your total tax burden.
TTrue
FFalse
Answer: False
Income deferral is only beneficial if your marginal tax rate in the future year is lower than in the current year. If you defer income from a 22% year to a 24% year — for instance, because you expect a raise or because tax rates are legislated upward — you pay more tax by deferring. The strategy depends on predicting future bracket exposure, which is why the misconception 'deferring always saves taxes' is dangerous. Context determines whether timing a shift is advantageous.
Question 5 Short Answer
Why does the value of choosing between a traditional (pre-tax) and Roth (after-tax) retirement account depend on comparing your current marginal tax rate to your expected future rate — rather than simply on how much you contribute?
Think about your answer, then reveal below.
Model answer: Both accounts shelter the same investments from ongoing taxation, so the only tax difference is when you pay: traditional taxes withdrawals at your future rate, Roth taxes contributions at your current rate. If rates are equal, the accounts produce identical after-tax wealth. The comparison only favors one over the other when rates differ: traditional wins when you'll pay less later (defers from high to low bracket), Roth wins when you'll pay more later (locks in today's lower rate). Contribution amount is irrelevant to this comparison — the same logic applies at any dollar level.
The mathematical equivalence when tax rates are equal is a useful anchor: if you contribute $1,000 pre-tax at 22%, you pay $220 in tax on withdrawal. If you contribute $780 after-tax (22% paid now) to a Roth, you pay $0 on withdrawal. The outcomes are identical when rates match. The choice only creates advantage when there is a rate differential — which is why the question 'where will your rate be higher?' is the central tax-planning question for retirement accounts.