Calculate the Net Household Value of a Job Offer
I built a job-offer net-net calculator to determine what a proposed job is actually worth to the employee’s household after taxes, employment-related expenses, benefit changes, commuting costs, and the economic value of commuting time. Gross salary should not be treated as household value. The calculator should interview me first and ask only for information that materially affects the calculation. If I do not know a number, it should identify it as an estimate and use a clearly labeled reasonable placeholder only with my permission. Step-by-step: 1. Collect the proposed annual gross salary. 2. Collect the employee’s state and locality, tax filing status, and other household taxable income when needed to estimate the incremental federal tax burden accurately. 3. Record the work arrangement: fully remote, hybrid, or on-site. 4. Record the number of commuting days per week and working weeks per year. 5. Collect the home location and job location, or the known one-way mileage. 6. Collect the vehicle make, model, year, drivetrain, and approximate MPG when available, along with current annual vehicle mileage if relevant. 7. Collect the gasoline price or ask permission to obtain a current local price. 8. Record tolls, parking, and the expected change in automobile insurance. If the insurance change is unknown, keep it as a clearly labeled placeholder rather than presenting it as fact. 9. Record employee medical, dental, and vision premiums under the proposed job, along with current household medical, dental, and vision expenses that would disappear if the employee accepts the job. 10. Record the employee’s current or previous annual compensation, or another hourly value to use for valuing commuting time. 11. Record any other recurring costs caused by accepting the job and any recurring household expenses that would disappear because of accepting it. 12. Estimate after-tax pay as follows: - Gross salary - Federal income tax - State and local income tax - Social Security - Medicare - Estimated after-tax salary Use current tax rules when web access is available, and distinguish estimated withholding from actual tax liability when relevant. 13. Calculate annual commute miles: - Round-trip miles × commuting days per week × working weeks per year 14. Estimate the incremental cash cost caused by commuting, including fuel, maintenance, oil and service, tires, repairs, tolls, parking, and the incremental auto-insurance premium when applicable. Do not double-count expenses. 15. Separately estimate additional depreciation and other mileage-related economic costs that were not already included. If using an all-in per-mile vehicle-cost benchmark, do not also add its constituent costs separately. Explicitly state which method was used. 16. Calculate annual commuting hours: - Estimated minutes each direction × 2 × commuting days per week × working weeks per year ÷ 60 17. Calculate the employee’s implied hourly value: - Annual benchmark compensation ÷ 2,080 Multiply annual commuting hours by the hourly value to calculate the economic value of commuting time. Treat this as an economic cost, not a cash expense. 18. Calculate the employee’s annual out-of-pocket premiums for medical, dental, vision, and other mandatory benefits. Separately calculate any current household expense that would disappear because the new employer provides that benefit. 19. Calculate the change from the current household baseline. Do not subtract an existing expense and then add the same expense back in the same scenario. 20. Calculate cash net as: - Estimated after-tax salary - Incremental cash commuting costs - Incremental insurance costs - Employee-paid benefit premiums - Other new cash expenses + Current household expenses eliminated by taking the job This represents the approximate improvement in household cash flow attributable to the job. 21. Calculate economic net-net as: - Cash net - Value of commuting time - Incremental vehicle depreciation or other non-cash economic costs not already counted This represents the broader economic value of the job. 22. Start the final output with only these numbers: - GROSS SALARY: $____ - ESTIMATED AFTER-TAX PAY: $____ - ANNUAL CASH NET: $____ - MONTHLY CASH NET: $____ - ANNUAL ECONOMIC NET-NET: $____ - MONTHLY ECONOMIC NET-NET: $____ 23. Then provide the calculation table. 24. Finally, provide the three largest cost items, the three assumptions with the greatest uncertainty, the break-even gross salary at which accepting the job would produce the target household net value I specify, and any information I should verify before making the decision.
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