How calculator formulas are handled
Tools use user-entered assumptions and display formulas, assumptions, and limitations on their pages. They do not retrieve bank accounts, tax returns, credit files, plan documents, or live market data. Results omit factors identified in each limitation section.
Comparisons describe differences between entered scenarios and do not recommend a choice. Representative examples include the First Job Paycheck Planner, Credit Card Interest Timeline, Job Offer Comparison Tool, Purchasing Power & Real Return Calculator, and Commute Cost Calculator.
Stable and date-sensitive content
Definitions such as gross pay, principal, or cash flow tend to remain stable. Tax forms, contribution limits, student-loan programs, benefit rules, insurance procedures, and official recovery processes can change. A visible Last reviewed date indicates when a sensitive page was most recently checked; it is not a claim of professional review.
Review schedule
How topic sensitivity affects review| Topic | Sensitivity | Why it changes | Review approach |
|---|
| Definitions and basic cash-flow concepts | Stable | Core concepts change infrequently. | Review when connected content or terminology changes. |
|---|
| Banking, housing, transportation, inflation | Medium | Institution features, official data, and procedures can change. | Check official sources when pages are revised or concerns are reported. |
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| Taxes, benefits, credit, fraud, student loans, retirement | High | Rules, forms, programs, limits, and procedures can change. | Review more frequently and direct users to current official documents. |
|---|
High-sensitivity pages should be reviewed more frequently because official rules, forms, limits, or procedures may change. This project does not promise a fixed review cadence it cannot maintain.
How corrections work
The Feedback page creates a copyable source-correction summary. It does not currently transmit the summary to the site owner. A correction should identify the page, concern, and an official source URL without including sensitive information.
Game and simulation limitations
Games use fictional businesses, markets, events, and money systems. Scores and simulated results do not predict financial outcomes or assess a person's real financial ability. Game relationships are designed for concept practice, not recommendations.
Educational boundary
Financial Intelligence Lab provides simplified educational lessons, calculators, and games. Sources and formulas do not create individualized financial, investment, tax, legal, credit, debt-repayment, insurance, retirement, career, business, banking-product, or budgeting advice. Current official rules, plan documents, contracts, and personal circumstances control.
Review cadence
Not every topic changes at the same speed. Review dates represent substantive source checks, not cosmetic freshness updates.
| Content type | Normal review pattern | Examples |
|---|
| High sensitivity | Monthly source monitoring with a quarterly formal review, plus event-driven updates | Federal student-loan repayment, tax/payroll rules, active scam guidance |
| Medium sensitivity | At least annual review | Benefits, insurance terminology, credit and banking procedures |
| Stable concepts | 18–24 months unless a source change triggers earlier review | Simple-vs-compound math, basic cash-flow categories |
Source hierarchy
- Statutes, regulations, and official agencies when the claim depends on a rule or program.
- Regulator and government education for consumer-facing explanations.
- Institutional sources for context where primary sources do not address presentation needs.
- Secondary sources may provide context or examples, but they are not the controlling authority for financial rules.
Corrections policy
A correction is made when a factual claim, formula, source interpretation, or material link is wrong or materially outdated. Substantive corrections can update the visible review date; dates are not changed merely to make a page appear fresh. The feedback helper can be used to prepare a source-correction report.
Calculator methodology inventory
Each interactive tool is expected to disclose its inputs, formula logic, assumptions, limitations, and related lesson on the tool page. Formula changes require a new formula review. The current catalog includes a Periodic Expense Planner and a Simple vs. Compound Interest Explorer under the same standard.
AI-assisted work and human verification
AI tools may assist research, drafting, coding, comparison, and quality-control work. Published financial claims and formulas are checked against the cited primary or institutional sources before release. The site does not claim CPA, CFP, attorney, tax-preparer, or other professional review unless that review actually occurs and is documented.