Wealth Planning Trust Center
Financial Planning Methodology
How we build the planning frameworks behind our calculators and guides.
Last updated: August 1, 2026
Framework
- Clarify the goal. Time horizon, dollar amount, priority, flexibility.
- Inventory the inputs. Income, expenses, debts, assets, taxes, household.
- Choose assumptions. Inflation, returns, contribution growth, tax treatment — clearly labeled and adjustable.
- Model the base case. Deterministic projection using the user's inputs.
- Stress-test. Sensitivity to returns, inflation, contribution gaps and time-horizon changes.
- Translate to action. What changes if the projection misses by 10%, 25%, 50%?
Principles
- Defaults must be defensible and conservative.
- Every assumption a user can change is shown — none are hidden.
- Outputs are estimates, not guarantees. Ranges are preferred over single numbers when materially relevant.
- Tax, regulatory and product details are simplified for education; users should verify against current rules in their jurisdiction.
Out of scope
Our planning methodology does not produce a personalized financial plan, an investment policy statement, a tax return, an insurance recommendation or a legal document. See the Educational Purpose Statement.
This page is part of the CalculatingWealth.com Wealth Planning Trust Center. For an overview of every policy, methodology and disclosure, visit the Trust Center. Nothing on this page is personalized financial, investment, tax, legal or accounting advice — see the Financial Disclaimer.
