The data model behind an employee cost calculator is messier than the UI

Short summary

Building an effective employee cost calculator requires managing complex employer-side assumptions: payroll taxes, benefits, insurance, state regulations, and wage bases. Rather than hiding this complexity behind a single number, transparent tools show itemized breakdowns so users understand which costs are assumptions versus calculations. Labeling estimates as 'planning guides' rather than 'payroll truth' prevents misuse and builds trust.

• •Salary alone doesn't determine employer cost; state rules, benefits, insurance, and taxes significantly affect the total
• •Itemized output and transparent assumptions build user trust better than opaque single-number results
• •Frame calculators as planning tools not payroll systems; explicitly acknowledge limitations to prevent misuse

Generated with AI, which can make mistakes.