Wealth Foundations
Find a guide for account choices, IRA rules, investment taxes, and the costs that affect long-term returns.
About this section and its research approachResearch Library
Latest Wealth Foundations Guides
Investing basics, account strategy, portfolio construction, fees, taxes, and long-term decision rules.
Jul 30, 2026
Taxable Brokerage Account vs Roth IRA: Which Should You Fund First?
The same fund can produce different after-tax results in a Roth IRA and a taxable brokerage account.
Read the analysis →Apr 27, 2026
CEO Red Flags: 5 SEC Filing Checks Before You Buy
Use five SEC filing checks to separate a persuasive CEO story from evidence that deserves more diligence.
Read the analysis →Apr 9, 2026
Portfolio Rebalancing Strategy: Calendar, Threshold, or Hybrid?
Portfolio rebalancing strategy: compare calendar, threshold, and hybrid rules, then see how taxes, cash flows, and account type change when you trade.
Read the analysis →Apr 8, 2026
Expense Ratio Impact: How Fund Fees Compound Over Time
Model how a fund fee gap compounds, distinguish gross and net calculator inputs, and check exposure, share class, taxes and costs before switching funds.
Read the analysis →Apr 5, 2026
Tax Loss Harvesting Rules: A Practical Guide to the 30-Day Wash-Sale Rule
Tax loss harvesting rules produce 1.08% annualized tax alpha, not a $720 annual deduction. That alpha compounds into a $455,716 gap over 30 years.
Read the analysis →Apr 2, 2026
Mega Backdoor Roth: Your 401(k) Plan Is the Real Gatekeeper
A mega backdoor Roth works only when your employer plan allows after-tax contributions and a Roth conversion or rollover route. Here’s how to check 2026 limits, plan rules, and your…
Read the analysis →Apr 1, 2026
Backdoor Roth IRA Rules: Pro-Rata Tax and IRA Balances
A backdoor Roth can still create taxable income when pre-tax money remains in Traditional, SEP, or SIMPLE IRAs. This guide explains the pro-rata rule, Form 8606, rollover options, and includes…
Read the analysis →Mar 31, 2026
Overfunded 529 Plan: What to Do With Leftover Money
Leftover 529 money is not automatically trapped. Compare qualified expenses, Roth IRA rollover eligibility, beneficiary changes, penalty exceptions, and the after-tax cost of withdrawing now versus later.
Read the analysis →Mar 29, 2026
HSA Investment Strategy: How Much Cash Should You Keep Before Investing?
A practical HSA investment strategy starts with a cash target, then invests only the balance that can stay untouched through a market decline.
Read the analysis →Mar 27, 2026
Pattern Day Trader Rule 2026: Is $25,000 Still Required?
The pattern day trader rule changed, but brokers may still use the old $25,000 test during the transition. Check which rules apply to your account.
Read the analysis →About this section and its research approach
Wealth FoundationsBuild the System Before You Pick the Assets
Long-term wealth is usually won or lost in the setup.
We break down investing basics, account rules, fees, taxes, allocation, and the behavioral decisions that compound for decades.
Primary Sources
Long-Term Math
Practical Decisions
The Foundation
How We Build Stronger Wealth Foundations
Good investing starts before a ticker enters the conversation. These guides focus on the account structure, costs, risk capacity, and repeatable rules that determine whether a sensible plan survives real life.
01 · Plan
What job does this money need to do?
We start with goals, time horizon, liquidity, and risk capacity so the portfolio is built around a real obligation rather than a generic return target.
02 · Friction
What quietly reduces the return?
We trace fees, taxes, account restrictions, trading costs, and default settings that look small in one year but become large over a full investing lifetime.
03 · Behavior
Can the plan survive a bad market?
We favor rules that remain usable during volatility, when a mathematically sound portfolio is most likely to be abandoned or changed at the wrong time.
Educational guides for building an investing system, not personalized investment, tax, or legal advice.