Start with the change in take-home pay
Use the annual amount you expect to receive after payroll deductions, rather than applying the full advertised salary increase to your spending budget. Ask for the relevant payroll or benefits details when comparing an offer; this calculator does not estimate your personal taxes.
Compare matching periods. A monthly take-home change needs to be annualized before comparing it with an annual commute cost. Consider benefit contributions, unpaid time and differences in working weeks separately when they are relevant; do not silently assume the jobs are otherwise identical.
Compare the additional cost, not the entire new commute
Calculate each route's annual fuel, parking, tolls and chosen mileage-based wear allowance, after applicable reimbursement. Subtract the current commute cost from the proposed commute cost. Subtract that difference from the take-home change to find the remaining annual cash gain.
For this model, cash break-even is the additional annual commuting expense. If the new route costs less, some reduction in take-home could be offset by that saving. Fixed car ownership costs do not automatically disappear when you drive fewer days.
Use actual personal expense assumptions. A tax mileage allowance serves a different purpose and is not automatically the cost of your commute.
Reference: IRS: standard mileage rates
Keep travel time separate from cash
Annual travel hours equal round-trip minutes multiplied by office days per year, divided by 60. Compare both jobs over their actual schedules. An extra ten minutes each way is twenty extra minutes per office day.
When additional hours are positive, divide the remaining cash gain by those additional hours to understand what the raise leaves per extra commute hour. This is a comparison metric, not your wage. With no added hours, that division is not useful; with fewer hours, show time saved instead.
You can also choose a personal value per hour and compare it with the result. Keep that preference visible: assigning time a dollar value does not turn it into a cash expense.
Use the current tool within its comparison limits
The built-in job-offer option changes office days on the same route. Enter the annual take-home increase and proposed days to reproduce the example below. If the workplace changes, save a separate scenario with its own distance, time and costs, then subtract the two annual results as described above.
The transit option currently assumes twelve monthly passes. Review that assumption if you buy passes only during some months. Office meals, clothing, childcare, benefits and job satisfaction are not included unless you explicitly account for them outside the modeled commute.
Before deciding, check journey reliability and your actual schedule. A result under one set of assumptions can change if parking costs more, reimbursement ends or the required office days increase.
A worked example with inspectable inputs
| Item | Example result |
|---|---|
| Current annual commuting expense | $2,952.00 |
| Additional annual commuting expense | $1,968.00 |
| Take-home increase remaining after the commute change | $10,032.00 |
| Additional annual travel time | 112 hours |
| Remaining cash gain per additional commute hour | $89.57 |
| Annual take-home change needed for cash break-even | $1,968.00 |
Inputs: 15 miles and 35 minutes each way, 48 working weeks, 30 MPG, $3.50/gallon, $10/day parking, $4/day tolls, $0.10/mile wear and no reimbursement. Both schedules use this same route.
The per-hour and break-even figures are derived here from the calculator's outputs. Time valuation is not subtracted from the cash gain. This example does not compare two independently entered job locations.
Illustrative figures, not market averages. The underlying costs are calculated with the same engine as the tool; additional derived measures are labeled.
Compare commute costs and office days ↗Sources and calculation notes
- IRS: standard mileage rates
Tax-purpose reference. No IRS rate is used as a personal commute-cost estimate in this example.
Read the commute & hybrid work costs methodology for the model assumptions and excluded costs.
Published . Sources checked September 8, 2026. Editorial policy · Corrections