CALCMONEY // GUIDES // PAGE 3 OF 14
Blog.
Numbers-first guides on mortgages, taxes, retirement, and net worth. No opinions, no fluff.

Parent PLUS Loans Cost Far More Than the Sticker Price. Here's the Real Math.
Most parents sign Parent PLUS loan paperwork focused on the annual disbursement amount. That number is irrelevant. The number that matters is total repayment cost, and for a $50,000 loan at the current 9.08% rate, it can exceed $76,000 on the standard plan. Run the correct calculation before the first payment is due.

Student Loan Refinance vs. Forgiveness: How to Calculate Which Path Costs Less
Most borrowers refinance for a lower rate without calculating what they surrender. If you qualify for any federal forgiveness program, refinancing into a private loan eliminates that eligibility permanently. Run the numbers before you sign.

How to Calculate Your College Savings Gap and Close It Before Tuition Bills Arrive
Most parents estimate college costs using current tuition figures, then wonder why their 529 balance falls short by six figures. The gap is not a savings problem. It is a projection problem. Fix the math first, then fix the funding.

IRS Crypto Ruling: What It Means for Your 2026 Capital Gains β Jun 23, 2026
Crypto market drops as Nasdaq tech selloff spills into digital assets

How to Calculate Expected Family Contribution Before FAFSA Costs You Money
Most families submit FAFSA without knowing their EFC number in advance. That single oversight routinely costs $5,000 or more in financial aid they could have captured. Running your own estimate before the application window opens changes the outcome.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 23, 2026
Bitcoin Reclaims $65K As Strategy Buys Again

529 vs Roth IRA for College Savings: How to Calculate the Best Choice
Most parents default to a 529 without running the numbers against a Roth IRA. That default can cost tens of thousands in flexibility. The right account depends on your income, your timeline, and what happens if your child skips college.

How to Calculate the True Annual Cost of Your Health Insurance Plan
Most people compare health insurance plans by monthly premium alone. That method routinely costs families $3,000 to $6,000 more per year than the plan they passed over. The true annual cost requires four distinct numbers, not one.

How to Calculate the Right Auto Insurance Deductible for Your Situation
Most drivers pick a deductible based on a gut feeling and leave hundreds of dollars on the table every year. The right deductible is a math problem, not a preference. Running the numbers takes under five minutes and changes the answer entirely.

IRS Crypto Ruling: What It Means for Your 2026 Capital Gains β Jun 22, 2026
Bitcoin ETF outflow pain eases just as another headwind gathers strength

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 22, 2026
Former CFTC Commissioner Carolyn Pham Warns Crypto Has 2.5 Years To Become 'Too Big To Fail'

How to Calculate Homeowners Insurance Replacement Cost Accurately
Most homeowners insure their home for its market value. That number is wrong, and a total loss will expose the gap immediately. Replacement cost and market value can differ by $80,000 or more on a median American home.

How to Calculate Exactly How Much Umbrella Insurance Coverage You Need
Most people pick a $1 million umbrella policy because it sounds like enough. It rarely is. The correct coverage number comes from a specific calculation tied to your net worth, income, and liability exposure, not a round figure someone guessed at.

How to Calculate Long-Term Care Insurance Costs and Coverage Needs
Most people price long-term care insurance based on gut feel and end up either over-insured or dangerously underweight on coverage. The math is not complicated, but it requires specific inputs most advisors never ask for. Get the calculation right before the underwriter does.

Term vs Whole Life Insurance: How to Calculate the Real Cost Over 30 Years
Most people compare term and whole life insurance by monthly premium alone. That single error can cost you $200,000 or more over three decades. The correct analysis runs the numbers on opportunity cost, not just policy price.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 21, 2026
Arthur Hayes Sells Ethereum at a Loss as Whales Keep Buying Near Support

Elon split: How This Affects Your Equity Compensation Tax β Jun 21, 2026
Elon Musk Nears 20% Voting Power In Tesla After Exercising Stock Options

COBRA vs Marketplace Insurance: How to Calculate the Cheaper Option
Most people default to COBRA without running a single number. That reflex costs the average job-leaver over $7,000 per year. The right choice depends on your income, your subsidy eligibility, and a calculation most people never make.

HSA vs FSA: How to Calculate Which Saves You More Money
Most people pick HSAs or FSAs based on gut instinct, not math. The difference in lifetime tax savings between the two accounts can exceed $50,000 for a high earner. This analysis shows you exactly how to run the numbers.

How to Calculate HSA Investment Growth as a Triple Tax-Free Account
Most HSA holders treat the account like a medical checking account. That single mistake costs them tens of thousands in compound growth over a working career. The math on triple tax-free investing is more powerful than almost any other vehicle available to US investors.

How to Calculate 457(b) Deferred Compensation Benefits for Government Workers
Most government employees treat the 457(b) as a bonus retirement account. It is not. Calculating your actual benefit requires understanding contribution limits, distribution timing, and the absence of early withdrawal penalties that make this plan structurally different from every other tax-deferred vehicle you own.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 20, 2026
GBTCβs 1.50% Fee Is Subtly Costing You Thousands Every Decade

Why split: How This Affects Your Equity Compensation Tax β Jun 19, 2026
Why Alight Stock Withered This Week

How to Calculate What Your 401(k) Employer Match Is Actually Worth
Most workers count their employer match at face value. That number is wrong. Vesting schedules, contribution caps, and forfeiture rules can cut the real value by 40% or more before you see a dollar.

How to Calculate Your ChubbyFIRE Number (And Why Most People Underestimate It)
Most FIRE calculators assume a spartan retirement. ChubbyFIRE targets a different income tier entirely, and the math compounds the error fast. If you're planning on $2.5M and expecting comfort, read this first.

Your CoastFIRE Number Is Probably Smaller Than You Think. Here's How to Calculate It.
Most people keep maxing out retirement accounts years after they've already won. CoastFIRE lets you stop saving aggressively the moment your existing portfolio can grow to your retirement goal on its own. Running the math takes about five minutes.

How to Calculate Your LeanFIRE Number (And Why Most People Overshoot It)
Most FIRE calculators default to assumptions built for conventional retirement at 65. LeanFIRE operates on a different set of rules entirely. Get the math wrong and you either retire broke or spend a decade working longer than necessary.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 19, 2026
We Asked Claude What Would Have to Break for XRP to Fall to $1

How to Calculate the Exact Savings Rate to Retire at Any Age
Most people pick a retirement age and hope their savings rate is close enough. It isn't. The math between your current savings rate and your actual retirement date is precise, and the gap between guessing and calculating can cost you a decade of working years.

How to Calculate Military Retirement Pay Under BRS and the Legacy System
Most service members estimate their retirement pay without running the actual formula. That gap between estimate and reality can cost six figures over a 20-year retirement. The math is not complicated, but it demands precision.

How to Calculate TSP Withdrawal Options for Federal Employees
Most federal employees pick a TSP withdrawal method without modeling the tax impact first. That single oversight can cost $40,000 or more in avoidable federal income tax over a 20-year retirement. The math on each option is straightforward once you see it laid out.

How to Calculate Net Unrealized Appreciation: The NUA Tax Strategy That Saves Six Figures
Most 401(k) holders roll their employer stock into an IRA and pay ordinary income tax on every dollar. The NUA strategy taxes the growth at long-term capital gains rates instead. For concentrated employer stock positions, the difference can exceed $100,000 in lifetime tax savings.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 18, 2026
Grayscale Names 5 DeFi Altcoins With Real Utility

403(b) vs 401(k): How to Calculate the Real Difference in Your Retirement
Most employees assume 403(b) and 401(k) plans are functionally identical. They are not. The differences in contribution rules, employer matching structures, and investment fee schedules can shift your retirement balance by $80,000 or more over a 30-year career.

IRS Crypto Ruling: What It Means for Your 2026 Capital Gains β Jun 17, 2026
Crypto Long & Short: The measure of a maturing market

Fed hike 25bps: Your Jumbo Mortgage Rate Recalculation β Jun 17, 2026
Federal Reserve issues FOMC statement

How to Calculate a Dynamic Withdrawal Rate That Survives Any Market
The 4% rule was never a strategy. It was a starting point from a 1994 paper, built on a 30-year horizon that most retirees will outlive. A static withdrawal rate transfers sequence-of-returns risk directly to your portfolio. Dynamic withdrawal rates adjust. Yours should too.

How to Calculate Sequence of Returns Risk in Early Retirement
Most early retirees calculate whether they have enough money. Almost none calculate whether they have it at the right time. A 30% market drop in year two of retirement is not the same as a 30% drop in year twelve. The math proves it, and the difference can cost you seven figures.

Social Security Delayed Retirement Credits: The Exact Math Behind Waiting
Most people claim Social Security at the wrong time because they never run the actual numbers. Delayed retirement credits add 8% per year to your benefit after full retirement age, compounding into tens of thousands of dollars over a typical retirement. The math is straightforward. Most people never do it.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 17, 2026
Summer Is ComingβBut There's No End in Sight for This Crypto Winter

How to Calculate Your Spousal Social Security Benefit Amount
Most married couples leave Social Security money unclaimed because they misunderstand the spousal benefit formula. The maximum spousal benefit is not half of whatever your spouse receives. It's half of their primary insurance amount, and the difference can cost you thousands per year.

Pension Lump Sum vs Annuity: How to Calculate Which Is Worth More
Most pension recipients pick an option without running the math. That decision can cost $200,000 or more over a 20-year retirement. The correct answer depends on three variables most advisors underweight.

IRS Crypto Ruling: What It Means for Your 2026 Capital Gains β Jun 16, 2026
BlackRock's new bitcoin ETF lets institutions earn from volatility. There's a catch.

How to Calculate SIMPLE IRA Contribution Limits Including Employer Match
Most SIMPLE IRA participants leave employer match money on the table by miscalculating their own contribution ceiling. The 2025 limit is $16,500, but that number alone tells you almost nothing. Understanding how the match interacts with your elective deferrals changes what you actually owe yourself.

Mega Backdoor Roth: The $43,500 Conversion Most High Earners Miss
Most high earners max their 401(k) at $23,500 and stop there. That leaves up to $43,500 of after-tax contribution room untouched every year. The mega backdoor Roth converts that money into tax-free growth, permanently.

Bitcoin hike: The After-Tax Proceeds Calculation at Current Prices β Jun 16, 2026
Crypto News Today (June 15): BTC Back Above $66K, Bank of Japan Announces Rate Hike, BlackRock BITA Fund Receives SEC Approval

How to Calculate the QBI Deduction as a Self-Employed Person
Most self-employed people claim the QBI deduction incorrectly, or miss it entirely. The deduction can reduce your taxable income by up to 20%, but the calculation involves three separate limits that interact in ways most tax software glosses over. Get the math right and you keep thousands more.

How to Calculate If Your Social Security Benefits Are Taxable
Most retirees assume Social Security arrives tax-free. It doesn't. Up to 85% of your benefit can become taxable income, and the threshold that triggers it hasn't been adjusted for inflation since 1984.