Offer Comparison Calculator
Free job offer comparison tool and total compensation calculator. Compare two job offers with tax-adjusted net take-home, 4-year total comp, and salary vs equity. Ideal for tech offer comparison and RSU offer comparison—includes base, bonus, equity, 401k match, state tax, and health premium.
Auto-fills cost of living index
PTO value ≈ $8,654/yr (15 days × $577/day)
Auto-fills cost of living index
PTO value ≈ $10,385/yr (15 days × $692/day)
4-year total comp winner
Offer B leads by $633,072
Avg $158,268/yr advantage after tax, equity, benefits, PTO & commute
Offer A take-home
$530,552
4-year total
Offer B take-home
$973,404
4-year total
Difference (A − B)
-$442,852
take-home
Break-even
B always
cumulative
Decision insights
- •Offer B wins by 83% over 4 years (take-home)
- •Better short-term cash flow in Offer B (Year 1 take-home)
- •Better long-term upside in Offer B (4-year total comp)
- •Offer A saves $20,166/yr in state tax (no income tax)
- •Higher purchasing power in Offer A despite lower salary (COL-adjusted)
| Component | Offer A | Offer B | Edge |
|---|---|---|---|
Cash compensation Base + bonus × 4 years | $660,000 | $800,000 | +$140,000 B |
Equity vesting RSU / grants over 4-year cliff | $80,000 | $120,000 | +$40,000 B |
Taxes paid Federal + state + FICA | −$189,024 | −$320,456 | +$131,432 A |
Health premium (cost) Your out-of-pocket × 4 years | −$9,600 | −$9,600 | — |
401k employer match Free retirement contribution | $36,000 | $43,200 | +$7,200 B |
PTO value 15 vs 15 days — salary ÷ 260 × days | $34,616 | $41,540 | +$6,924 B |
| 4-year total comp value | $678,156 | $1,311,228 | +$633,072 B |
| Avg annual value | $169,539/yr | $327,807/yr |
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The offer with the bigger number on the letter often isn't the one that puts more in your bank account. Choosing between job offers on salary alone can cost you tens of thousands of dollars over a few years. An offer comparison calculator that models taxes, equity vesting, and cost of living gives you a real after-tax job offer comparison and a 4-year total compensation comparison—so you can compare job offers like a pro.
Use our job offer comparison tool above: enter both offers, then read on to interpret the results and understand total compensation, state taxes, and negotiation.
How to Compare Job Offers the Right Way
Comparing job offers the right way means looking at total compensation, not just base salary. A higher base in a high-tax state with expensive housing can leave you with less spending power than a lower base elsewhere. Use this total compensation calculator to run both offers with your real numbers.
- Base salary isn't everything. Bonus, equity, 401k match, and benefits can add 20–50%+ to your real comp. A $150k base with a 10% bonus and $60k RSUs over 4 years is very different from $150k cash-only.
- Equity timing matters. RSUs that vest over 4 years hit your taxable income each year. A front-loaded vest can mean higher taxes early; a back-loaded one shifts value (and risk) to later. Our RSU Tax Calculator shows tax at vest.
- Taxes reduce real value. Federal income tax (marginal brackets plus standard deduction), state income tax (0% in Texas/Florida/Washington to 13%+ in California), and FICA (7.65% up to the wage base, then Medicare on the rest) can take 25–45% of gross. A $180,000 salary in California often nets about $108,000 after tax; the same in Texas might net about $120,000—roughly $12,000 more per year in your pocket. After-tax job offer comparison is what you should optimize for.
- Cost of living changes everything. A $180,000 offer in San Francisco may be worth less than $150,000 in Austin after taxes and housing costs. Use our Relocation Salary Calculator to compare cities.
Real example: A $180,000 offer in San Francisco can net ~$108k after federal, state, and FICA. In Austin, $150,000 might net ~$112k—and Austin rent and day-to-day costs are often 30–40% lower than SF. So the "smaller" Austin offer can leave you with more spending power. Run both in the calculator above with your filing status and health costs to see your exact 4-year total compensation comparison.
Key Components of Total Compensation
A job offer evaluation checklist should include every element that affects your wallet. Tech and finance roles often mix base, bonus, and equity—so a tech job offer comparison, RSU offer comparison, or RSU vs salary comparison needs all of these in one place.
- Base salary: Guaranteed cash; taxed as ordinary income. Use a state paycheck calculator for a single offer.
- Bonus: Often taxed at a flat supplemental rate. Use our Bonus Tax Calculator to see net bonus.
- RSUs / equity: Usually vest over 4 years; taxed as income when they vest. Include the full 4-year grant value in this tool and use Equity Vesting Calculator for schedule.
- 401k match: Part of total comp but tax-deferred; it doesn't show up in take-home. Still valuable—model it in the calculator.
- PTO value: Each vacation day is worth roughly your daily salary (annual base ÷ 260 working days). An offer with 25 PTO days vs 15 days at $150k adds ~$5,760 in annual value. Enter PTO days for each offer—we compute this automatically.
- Commute cost: Gas, transit passes, and parking can easily run $3,000–$8,000/year. A fully-remote offer vs. one requiring 5 days/week in office can differ by $12,000–$32,000 over 4 years—real money that never shows up in the offer letter. Enter your annual commute cost; we subtract it from total comp.
- Health premium: Your out-of-pocket cost (employee share of premiums). A $3k/year difference is $12k over 4 years. We also model HSA and commuter benefits.
After-Tax Job Offer Comparison
Gross numbers are misleading. Two offers that look similar on paper—e.g. $160k base + $80k equity—can diverge by $8k–$15k per year in take-home once you apply federal tax, state tax, and FICA. This offer comparison calculator does an after-tax job offer comparison for you: it uses 2026 federal brackets, standard deduction, state tax by state, and your filing status to estimate net pay each year and over 4 years.
What actually moves the needle:
- State: 0% in no-tax states vs 6–10%+ effective in high-tax states on six-figure income.
- Filing status: Married filing jointly typically has a lower effective rate than single at the same income.
- Bonus vs salary: Supplemental pay (bonus, sign-on) is often withheld at a flat 22% federal (or 37% above $1M); it's still taxed as ordinary income at year-end.
- Equity vests: RSUs are taxed as ordinary income when they vest (W-2 income), not as capital gains—so they stack on top of salary and can push you into a higher bracket that year.
Run both offers in the tool above to see side-by-side take-home and break-even year.
Comparing Job Offers in Different States
Comparing job offers in different states is one of the highest-impact uses of a job offer comparison tool. State income tax ranges from 0% (Texas, Florida, Washington, Nevada, etc.) to over 13% top rate in California (effective rates on $150k are often 6–8% in CA). On a $150k salary, that's often $9k–$12k more in your pocket per year in a no-tax state—and the gap grows with bonus and equity.
Set each offer's state in the calculator to see the difference. For cost-of-living by city (rent, groceries, etc.), use our Relocation Salary Calculator so you factor in both tax and COL.
4-Year Total Compensation Breakdown
Tech offers often quote equity as a 4-year grant. A 4-year total compensation comparison sums base + bonus + vested equity + 401k match (and other benefits you value) over four years, then applies taxes year by year. That tells you which offer actually puts more money in your pocket over the typical vest period.
Our total compensation calculator assumes 25% vest per year (standard 4-year schedule). Each year's vest is added to your taxable income, so your effective tax rate can rise in high-vest years. You can add equity growth (e.g. 0% for conservative, 5–10% for optimistic). Break-even is the first year when one offer's cumulative take-home passes the other—useful when one offer has more equity back-loaded.
Real Example: Comparing Two Tech Job Offers
| Component | Offer A (SF, CA) | Offer B (Austin, TX) |
|---|---|---|
| Base salary | $175,000 | $155,000 |
| Bonus (target) | $17,500 (10%) | $15,500 (10%) |
| RSUs (4-year grant) | $120,000 | $100,000 |
| 401k match | 6% | 5% |
| Health premium (annual) | $2,400 | $2,400 |
| State | California | Texas |
| ~Year 1 take-home (est.) | ~$112,000 | ~$115,000 |
| ~4-year take-home (est.) | ~$458,000 | ~$468,000 |
How to Negotiate a Better Job Offer
Use this offer comparison calculator to run scenarios before and during negotiation. When you have numbers, you negotiate from strength: if one offer has lower base but no state tax, show the take-home comparison—sometimes the "lower" offer already wins, and you can ask the other side to close the gap. If equity vests slowly, use the break-even view to ask for a higher sign-on or more RSUs upfront.
- Ask for more base, more equity, or a sign-on to close the gap you see in the 4-year total.
- Use our Bonus Tax Calculator to see the net value of a sign-on so you can compare it to extra salary (sign-on is often taxed at 22% federal withholding).
- If you're comparing job offers in different states, get the other side to acknowledge COL and tax—then ask for a bump or remote flexibility.
Common Mistakes When Comparing Offers
A few slip-ups can make the wrong offer look better. Avoid these when you run your job offer comparison:
- Ignoring state tax. A $10k difference in state tax is $10k less in your pocket every year—and that compounds over 4 years.
- Comparing only base salary. Total comp includes bonus, RSUs, and 401k match. Use a total compensation calculator so nothing is left off the table.
- Treating RSUs as guaranteed. Stock can go down. Model with 0% growth for a conservative view; add growth only for upside scenarios.
- Skipping cost of living. Use the calculator's COL field and the Relocation Salary Calculator so you compare real purchasing power, not just dollar take-home.
- Forgetting health premium. A $3k/year difference in out-of-pocket cost is $12k over 4 years—real money that doesn't show up in the offer letter.
- Ignoring PTO days. An extra 10 vacation days at a $150k salary is worth ~$5,760/year in value. Over a 4-year period that's $23k. Enter PTO days for each offer—the calculator converts them to dollar value automatically.
- Overlooking commute costs. Five days/week in office at $20/day round-trip is $5,200/year. A fully-remote offer vs. in-office can differ by $20k+ over 4 years before you factor in time. Enter annual commute cost to subtract it from real take-home.
Related Calculators
- Relocation Salary Calculator — Compare pay and cost of living across cities.
- RSU Tax Calculator — Tax at vest for RSUs.
- Bonus Tax Calculator — Net pay on bonus or sign-on.
- US Tax Calculator — State-by-state paycheck and tax.
- 401(k) Match Calculator — Employer match impact.
- Equity Vesting Calculator — Vesting schedule and cliff.
The 22% flat supplemental withholding trap: why RSU vests and bonuses under-withhold federal tax for anyone in the 24%, 32%, or higher bracket — and the April surprise it creates
Source: IRS Publication 15 (2026), Section 7 — Supplemental Wages; P.L. 119-21 (OBBBA); Treas. Reg. §31.3402(g)-1
When an employer pays you a bonus or vests RSUs, they are required to withhold federal income tax at the flat 22% supplemental wage rate (IRS Publication 15, Section 7) — up to $1 million in cumulative supplemental wages per employer per year. Above $1 million, the rate jumps to 37%. This flat rate is an administrative shortcut: it is a withholding rate, not a tax rate. Your actual tax owed depends on your marginal bracket.
| Total income (single, 2026) | Marginal federal bracket | Supplemental withholding | Per-dollar shortfall | On a $30k vest |
|---|---|---|---|---|
| Under $103,350 | 22% or below | 22% | $0 (may over-withhold at 10%/12%) | $0 owed |
| $103,350–$197,300 | 24% | 22% | 2% | $600 owed at filing |
| $197,300–$250,525 | 32% | 22% | 10% | $3,000 owed at filing |
| $250,525–$626,350 | 35% | 22% | 13% | $3,900 owed at filing |
| Over $626,350 | 37% | 37% (>$1M rule) | ~0% (mandatory 37% kicks in) | ~$0 |
Real-world example: comparing two offers with heavy equity
Offer A: $175,000 salary + $30,000/year RSU vest (single filer). Combined income = $205,000 → 32% bracket. RSU federal withholding = 22% ($6,600); actual federal owed = 32% ($9,600) → $3,000 surprise balance due per vest. Plus state tax shortfall — California's supplemental rate is 10.23%; actual effective CA rate may be higher. Total shortfall could be $4,000–$5,000 per vest.
Offer B: $185,000 salary + $15,000/year RSU vest. Lower vest amount means smaller shortfall. The gross-to-net difference between these two offers is even larger than the headline numbers suggest.
How to prevent the underpayment surprise
- Adjust your W-4: submit a new Form W-4 with additional withholding in Box 4(c) equal to the estimated shortfall
- Pay quarterly estimated taxes (Form 1040-ES) — especially when RSU vest creates a large single-quarter income spike
- Safe harbor rule: avoid the underpayment penalty by paying 100% of prior-year tax liability (110% if prior AGI exceeded $150k) — pay this regardless of projected shortfall
- Coordinate timing: if spouse also has W-2 income, combined bracket may be higher than individual calculation suggests
Implication for offer comparison
Two offers with identical gross compensation can produce different true after-tax take-home if one has a larger equity component — because larger equity means a larger tax shortfall that must be paid in April. The calculator above models this correctly using marginal brackets; the offer letter comparison does not.
401(k) vesting schedules: ERISA's 3-year cliff and 6-year graded minimums, the 2026 contribution limits, and the golden handcuff math every job-hopper should run
Source: IRC §411(a)(2)(B); IRS Issue Snapshot — Vesting Schedules for Matching Contributions; IRS Notice 2025-67 (2026 limits); PSCA 68th Annual Survey (2025)
The dollar value of an employer's 401(k) match depends critically on the vesting schedule — a variable that never appears in the offer letter headline. Under ERISA (IRC §411(a)(2)(B)), employer matching contributions must follow at minimum a 3-year cliff or 6-year graded vesting schedule. Your own elective deferrals are always 100% immediately vested by law.
| Years of service | 3-year cliff | 6-year graded | Immediate |
|---|---|---|---|
| < 2 | 0% | 0% | 100% |
| 2 | 0% | 20% | 100% |
| 3 | 100% | 40% | 100% |
| 4 | 100% | 60% | 100% |
| 5 | 100% | 80% | 100% |
| 6+ | 100% | 100% | 100% |
ERISA minimum — plans can be more generous (immediate vesting). 44.1% of plans used immediate vesting in 2024 (PSCA 68th Annual Survey). Source: IRS Issue Snapshot, IRC §411(a)(2)(B).
2026 401(k) contribution limits (IRS Notice 2025-67)
The golden handcuff math: running the numbers before you switch
Example: You've been at Company A for 2 years and 3 months. The 401(k) plan uses a 3-year cliff. Your employer has contributed $9,500 in matching contributions over those 2+ years ($4,500/year average). Under the cliff schedule, you own 0% of that match today. If you leave now, you forfeit all $9,500. Add to this unvested RSUs (covered below), and your real switching cost could exceed the first year's apparent salary increase from the new offer.
Key questions to ask when evaluating a new 401(k): Does the new employer offer immediate vesting? If they use a cliff schedule, how long until you fully vest? Does the new employer match more than the old one, or less? Is there a SIMPLE 401(k) or Safe Harbor plan (which must vest immediately)?
The unvested equity at your current employer: how to calculate the full cost of switching jobs, negotiate a make-whole sign-on, and use quarterly vest timing to maximize retention
Source: IRS Publication 15 (2026) §7; ASC 718; typical RSU grant agreement provisions
A common and costly mistake: comparing only the new offer vs. your current salary. You also need to subtract what you'd forfeit by leaving — primarily unvested RSUs and unvested 401(k) employer match. This number can be $50,000–$150,000 or more for mid-to-senior tech employees and it changes the offer comparison dramatically.
True switching cost calculation
Quarterly vest timing: wait for the vest date
Most tech RSU grants vest quarterly (1/16 per quarter for a standard 4-year grant). If your next vest is 6 weeks away and worth $20,000, waiting 6 weeks before tendering your resignation could preserve that full grant. This costs you nothing except time. Confirm the exact vest date in your brokerage account or Carta, and cross-reference with your resignation notice period.
Caution: if your current employer has a cliff (annual or 1-year initial cliff before quarterly vesting begins), missing the cliff by even one day means forfeiting that entire cliff tranche.
Negotiating a make-whole sign-on payment
Standard practice in tech recruiting: ask the new employer to "make you whole" on unvested equity you're leaving. Present the number clearly — e.g., "I have $80,000 in unvested RSUs vesting over the next 18 months; I need a sign-on that covers this."
Make-whole tax math (the gross-up problem)
A sign-on bonus is taxed as supplemental income at 22% federal + state. To net $80,000, the gross sign-on must be approximately:
Ask the recruiter whether the company will gross up the sign-on (i.e., cover your tax on it). Some FAANG employers do; most do not. If they won't gross up, request the higher gross amount directly.
Double-trigger vs. single-trigger RSU acceleration
Review your RSU grant agreement before switching. Double-trigger acceleration (most common at FAANG and large tech) requires both a change of control AND termination — meaning your unvested RSUs may vest if your current employer is acquired and you're laid off. Single-trigger (rarer) accelerates vesting on the change of control alone. If your current employer is a potential acquisition target, this clause could be worth significant money and should factor into your switching timing.
Frequently Asked Questions
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