Finance & Tax Guides
In-depth explainers covering 2026 tax changes, mortgage math, and personal finance fundamentals — all linked to the calculators they support.
Tax~10 min read
2026 Federal Tax Bracket Changes Explained
Standard deduction increases, new OBBB provisions, full bracket tables, and three real-world scenarios for single filers, joint filers, and tipped workers.
Read guide →Mortgage~9 min read
How Mortgage Amortization Works
The amortization formula, a full first-five-year schedule for a $400k/6.5%/30yr loan, PMI interaction, and the true cost of refinancing.
Read guide →Finance~8 min read
Compound Interest Fundamentals
Formula, compounding frequency comparison, Rule of 72, inflation-adjusted returns, and why starting at 25 vs. 35 produces a $500k+ gap.
Read guide →Mortgage~7 min read
PMI Explained: Cost, Removal, and Why It Matters
PMI costs 0.3–1.5% annually on the loan balance. FigureCal covers the HPA removal rules, BPMI vs LPMI, and when paying down to avoid PMI beats investing.
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