Guides
Plain-English explanations of the rules behind our calculators, with worked examples, checklists and links to official sources. New to a term? Look it up in our financial glossary.
Debt & Credit
Debt & Credit calculatorsBalance Transfer vs. Personal Loan: Which Is Better for Credit Card Debt?
A 0% balance transfer can be nearly free — or cost more than a loan if you miss the deadline. Compare real numbers and find the right fit for your debt.
Debt & CreditDebt Avalanche vs. Debt Snowball: What the Math and the Research Say
The avalanche saves the most interest; the snowball keeps more people going. See the real dollar difference, what studies found, and a step-by-step plan.
Debt & CreditHow Credit Card Interest Is Calculated: APR, Daily Rates and Grace Periods
Your card’s APR is charged daily on your average balance. See the exact math, how the grace period works, and why paying in full sometimes still costs interest.
Debt & CreditHow Lenders Calculate Debt-to-Income Ratio (and What They Leave Out)
Mortgage lenders don’t calculate DTI the way most people expect. Which debts count, how student loans and self-employed income are treated, and how to prepare.
Home Equity & Real Estate
Home Equity calculatorsCap Rate vs. Cash-on-Cash Return: How to Analyze a Rental Property
Cap rate measures the property; cash-on-cash measures your deal. Learn both, how financing changes them, and the expense assumptions that make or break a rental.
Home EquityDSCR Loans Explained: How Real Estate Investors Qualify Without Tax Returns
DSCR loans qualify rental properties on rent instead of your income. How the ratio is calculated, typical requirements, costs, and how to compare lenders.
Home EquityHELOC vs. Cash-Out Refinance: How to Choose When Your Mortgage Rate Is Low
Refinancing a 3% mortgage to borrow $60,000 can cost far more than a HELOC. Learn the blended-rate test, break-even math and when a cash-out refi wins.
Home EquityYour HELOC Draw Period Is Ending: 6 Options Before the Payment Jumps
When a HELOC moves from interest-only to repayment, the monthly bill can rise 20%–60% or more. Here are your options and how to compare them.
Business Financing
Business calculatorsFactor Rate vs. APR: How to Compare Merchant Cash Advance Offers
A 1.3 factor rate sounds like 30% interest, but over six months it is more than 100% APR. Here is how to convert factor rates and compare offers fairly.
BusinessInvoice Factoring vs. a Business Line of Credit: Cost, Speed and Fit
Factoring turns unpaid invoices into cash fast; a line of credit is usually cheaper. Compare the real costs, approval requirements and when each makes sense.
BusinessSection 179 vs. Bonus Depreciation: Writing Off Equipment in 2026
Both let a business deduct equipment in year one. How they differ after the 2025 tax law — limits, income caps, used equipment and financing — and which to use.
Tax Deductions 2025–2026
Taxes calculatorsHealth & Benefits
Benefits calculatorsApproved for SSDI: Back Pay, Medicare and What Happens Next
You won your disability claim. When back pay arrives, how the lawyer’s fee is paid, when Medicare starts, benefits for your family, taxes and reviews.
BenefitsHow to Appeal IRMAA: A Step-by-Step Guide to Form SSA-44
Retired and paying higher Medicare premiums because of income from two years ago? How the IRMAA lookback works, which events qualify and how to file SSA-44.
BenefitsThe 2026 ACA Subsidy Cliff: Who Loses Help and How to Stay Under 400%
The enhanced ACA credits expired, so earning $1 over 400% of the poverty line now ends your premium tax credit. Who is affected, and how to plan.