Financial Guides & Playbooks
Long-form, evidence-based walkthroughs on the money topics that matter most — built to accompany our 66+ free calculators with practical formulas, 2025/2026 data, and links to authoritative sources (IRS, CFPB, Federal Reserve, CRA).
Calculators tell you what the number is; these guides explain why — and what to do about it. Each playbook is a complete, self-contained walkthrough of one major financial decision: getting a mortgage, becoming debt-free, reaching financial independence, starting to invest, or lowering your tax bill. We show the actual formulas, work through realistic examples with current rates and limits, and link every factual claim to a primary source so you can verify it yourself.
The guides are written for the United States and Canada, updated for the 2026 tax year and current market conditions, and pair directly with the free calculators on this site — so when a guide says “run your own numbers,” the tool to do it is one click away. No sign-up, no email gate, and your inputs never leave your browser.
How to Get a Mortgage in 2026: The Complete Guide
A data-driven 2026 mortgage guide: rates, loan types, credit and DTI rules, closing costs, rate locks, the 30-day timeline, and when to refinance or recast.
How to Pay Off Debt Fast in 2026: The Real Playbook
The fastest way out of debt in 2026 is usually avalanche — unless your balances are close. Run both strategies on your real numbers inside.
The FIRE Roadmap: Retire Early by the Numbers (2026 Edition)
The FIRE movement in plain math: 25x rule, 4% safe withdrawal, Coast and Fat FIRE numbers, healthcare gaps, and the tax moves that make early retirement work.
How to Start Investing in 2026: A Beginner's Playbook
A math-first 2026 playbook for beginner investors: account order, Roth vs Traditional by bracket, three-fund portfolio, DCA vs lump sum, and 7 costly mistakes.
2026 Tax Strategy Playbook: Lower Your Bill by April 15
Every legal move a U.S. taxpayer can still make before April 15 — 2026 brackets, Roth vs traditional, HSA, capital gains, self-employment, and the real dollar impact.
Safe Withdrawal Rate Explained: The Math Behind the 4% Rule (2026)
What a safe withdrawal rate is, where the 4% rule comes from, how the formula works, and how the rate changes by age and retirement length — with sources.
Rental Property Investing: Cash Flow, Cap Rates, and BRRRR Explained (2026)
How to analyze a rental property in 2026 — cash flow, cap rate, cash-on-cash return, the 1% rule, BRRRR, and taxes — with worked examples and free calculators.
Inherited IRA RMD Rules for 2026: The 10-Year Rule Explained
How inherited IRA RMDs work in 2026: the SECURE Act 10-year rule, who must take annual RMDs, the Single Life Table, penalties, and a worked calculation example.
How to Pay Off Student Loans Fast: Early Payoff, Income-Based Plans & Refinancing
Can you pay off student loans early? Should you use a 401(k) or credit card? A practical payoff plan with the math for extra payments, IDR, and refinancing.
Business Loan Guide — How to Get Financing, What It Costs, and How to Compare Offers (2026)
Compare SBA loans, term loans, lines of credit, and equipment financing. Calculate payments, understand eligibility, and get the best rate for your business.
Small Business Financial Management — The Numbers That Actually Matter (2026)
Master the financial metrics that drive small business decisions: EBITDA, ROI, customer lifetime value, true employee cost, and break-even analysis. Free calculators included.
How Much Does a $500,000 Annuity Pay Per Month? (2026)
A $500,000 fixed annuity pays roughly $3,439/month over 20 years at a 5.5% rate. See payouts by amount, rate, and payout length — computed with our verified annuity formula.
$10,000 Invested in the S&P 500: What It Becomes in 10, 20, and 30 Years
At the S&P 500's ~10% historical average return, $10,000 grows to about $25,900 in 10 years, $67,300 in 20, and $174,500 in 30. See nominal vs. inflation-adjusted results.
RMD on $1 Million at Age 73: Exactly What You Must Withdraw (2026)
The first RMD on a $1,000,000 IRA at age 73 is $37,735.85 — the balance divided by the IRS Uniform Lifetime factor of 26.5. Full table by age and balance, plus the tax rules.
Social Security on a $75,000 Salary: Your Benefit at 62, 67, and 70 (2026)
A career-average $75,000 earner gets roughly $2,746/month at full retirement age 67 — about $1,922 at 62 and $3,405 at 70. See the 2026 formula and benefits by salary.
Take-Home Pay on a $50,000 Salary: Federal Tax, FICA, and What's Left (2026)
A single filer earning $50,000 in 2026 pays $3,820 federal income tax and $3,825 FICA, keeping $42,355 before state tax — about $3,530/month. Full breakdown by salary and state.
$6,000 Personal Loan: Monthly Payment at Every Rate (2026)
A $6,000 personal loan over 3 years costs $188/month at 8% APR, $208 at 15%, and $255 at 30%. Full payment and total-interest table by rate and term, with the formula.
How Long Will $500,000 Last in Retirement? Year-by-Year Breakdown (2026)
At a 4% withdrawal rate, $500,000 lasts roughly 30 years. But the real answer depends on your spending, returns, Social Security, and inflation. Full year-by-year scenarios inside.
How Much House Can I Afford on a $100k Salary? (2026 Rates)
On a $100,000 salary with 2026 mortgage rates around 6.8%, you can afford roughly $350,000–$420,000 depending on your debts and down payment. Full breakdown by salary from $60k to $200k.
Pay Off Your Mortgage Early: How Much You Save With Extra Payments (2026)
Adding $200/month to a $300,000 mortgage at 6.8% saves $98,000 in interest and cuts 7 years off the loan. Full savings table for every extra payment amount.
How Much Do I Need to Retire? Targets for Ages 55, 60, and 65 (2026)
To retire at 65 with $60,000/year spending, you need about $1.2 million. At 60, plan for $1.4M. At 55, roughly $1.7M. Full breakdown by age, spending level, and Social Security timing.
How Much Interest Does $10,000 Earn in a CD? (2026 Rates)
A $10,000 CD at 4.50% APY earns $450 in one year. Over 5 years at 4.25%, that's $2,314 in compound interest. Full earnings table by term and rate.
Average Net Worth by Age in 2026: Where Do You Stand?
The average American net worth is $1.06M, but the median is just $192,700. See the full breakdown by age — 20s through 75+ — with percentile rankings so you can see where you fall.