Accuracy is the foundation of every calculator on WorkplaceCalc.com. This page explains the data sources, update schedule, and methodology behind each tool. We cite official government sources wherever possible and note where estimates or simplifications are used.
Data sources by calculator
Update schedule
We update our calculators on the following schedule:
- January — Tax brackets, standard deductions, 401k limits, minimum wages, workers comp rates, FMLA state program updates
- July/September — Mid-year minimum wage updates (Florida in September, others as applicable)
- As needed — When federal or state laws change, we update affected calculators within 30 days of the effective date
Our update process for each January refresh involves pulling official rate tables from each state's workers compensation board website, verifying IRS inflation adjustments from the official Revenue Procedure published each fall, checking each state's department of labor for minimum wage changes, and reviewing NCSL's state labor law tracker for any mid-year legislative changes. This process typically takes 2-3 days to complete across all 50 states and all 11 calculators.
Simplifications and limitations
Some calculators use simplified calculations that may not capture every nuance of the law or your personal situation. We believe in being transparent about these limitations so users can make informed decisions about when to rely on our tools and when to seek professional guidance.
- Paycheck calculator — Uses a simplified state tax rate rather than full bracket calculations for all 50 states. Actual withholding depends on your W-4 elections, additional income sources, deductions, and your employer's specific payroll system. The federal calculation uses current IRS bracket tables and standard deductions but does not account for itemized deductions, tax credits, or alternative minimum tax.
- Workers comp calculator — Uses standard temporary total disability (TTD) formulas based on a percentage of average weekly wage capped at the state maximum. Permanent disability, partial disability, supplemental job displacement benefits, and death benefits are calculated differently and vary significantly by state and individual circumstance.
- 401k calculator — Assumes constant contribution rates and investment returns throughout the projection period. Real investment returns vary annually and are never guaranteed. The calculator does not account for plan fees, loan provisions, hardship withdrawals, or required minimum distributions.
- Cost of living calculator — Uses composite city-level indices that represent average costs across an entire metropolitan area. Actual costs in specific neighborhoods, ZIP codes, or housing situations may differ significantly from city averages. Housing costs in particular vary enormously within a single city.
- Statute of limitations calculator — Reflects standard statutory deadlines but does not account for tolling provisions, discovery rules, minority tolling, fraudulent concealment, or other exceptions that may extend or shorten deadlines in specific circumstances. Always verify your specific deadline with a licensed attorney.
- FMLA calculator — Provides eligibility estimates based on the information entered. Actual eligibility depends on your employer's specific policies, the nature of your qualifying condition, and how your employer calculates the 12-month FMLA period. Four different 12-month calculation methods are permitted under federal regulations.
We note these limitations on each individual calculator page and consistently recommend consulting a qualified professional for decisions with significant financial or legal consequences. Our tools are designed to inform and educate, not to replace professional advice.
How we handle conflicting sources
Occasionally our primary and secondary sources conflict. For example, a state's official workers compensation website might show a different maximum weekly benefit rate than the NCCI database, or a state labor department website might not have been updated to reflect a rate change that took effect on January 1.
Our policy in these situations is to use the most recently dated official government source. If a state's official workers compensation board website shows a rate that differs from a secondary aggregator, we use the official government figure. If two government sources conflict, we note the discrepancy in our internal records and attempt to resolve it by checking the actual state statute or regulation that establishes the rate.
When we cannot resolve a conflict with certainty, we use the more conservative figure and note the uncertainty on the relevant calculator page. We would rather slightly underestimate a benefit than overestimate it and cause someone to make a decision based on an inflated number.
Our approach to legal information
Several of our calculators — workers compensation, statute of limitations, FMLA leave, and minimum wage — involve legal information. We take particular care with this content because errors can have serious consequences for real people.
For legal calculators, our primary sources are always the actual statutes and regulations rather than summaries or secondary sources. When we cite a statute of limitations, we verify it against the actual state civil procedure code, not just a legal information website that may not reflect recent amendments. When we cite a workers compensation maximum weekly benefit, we verify it against the state workers compensation board's official rate table for the current year.
We also maintain clear distinctions between what our calculators provide — general informational estimates based on standard formulas — and what a licensed attorney provides: legal advice specific to your situation. Every legal calculator on WorkplaceCalc.com includes a prominent disclaimer explaining this distinction and encouraging users to consult a qualified attorney for their specific circumstances.
This approach reflects our belief that access to legal information should not be gatekept behind expensive professional consultations, while simultaneously acknowledging that general information is not a substitute for specific legal advice. We aim to give people enough information to understand their situation and ask informed questions of the professionals they work with.
Found an error?
If you believe any data on our site is incorrect or outdated, please contact us or email [email protected]. We take accuracy seriously and will review and correct errors promptly.
When reporting a potential error, the most helpful information you can provide is: which calculator and which state the error appears in, what value our calculator shows, what value you believe is correct, and if possible a link to the official source showing the correct figure. This allows us to investigate and correct errors as quickly as possible.
We have corrected errors reported by workers compensation attorneys who identified outdated benefit rates, by HR professionals who noted that a state minimum wage had increased, and by employees who found discrepancies between our paycheck calculator and their actual pay stubs. We are grateful for every error report — it makes the site more accurate for everyone.