Financial Guides

Learn the fundamentals

Plain-language guides with real numbers. No jargon, no sales pitches โ€” just the math that matters.

Savings

How Compound Interest Works โ€” And Why Starting Early Pays Off

Invest $10,000 at 7% for 30 years and you end up with about $76,000 โ€” without adding a single dollar more. Add $200/month on top and you're looking at nearly $300,000. That's compound interest. The math isn't complicated, but most people underestimate just how powerful it gets over long time horizons.

January 15, 20255 min read
Home

How Much House Can I Afford? Use the 28/36 Rule

Most people look at the monthly payment and forget everything else. That's how buyers end up house-poor โ€” technically able to pay the mortgage but cash-strapped after it. The right question isn't "can I get approved?" but "can I afford this without financial stress?"

January 22, 20256 min read
Debt

How to Pay Off Credit Card Debt Fast (Avalanche vs. Snowball)

The average American carrying a credit card balance owes about $6,000 at roughly 20% APR. At minimum payments, that balance takes over 15 years to eliminate and costs more in interest than the original debt. You can do dramatically better โ€” the strategy matters less than actually having one.

February 5, 20255 min read
Planning

How Big Should Your Emergency Fund Be?

One survey found 57% of Americans can't cover a $1,000 emergency without going into debt. A car repair, a dental bill, a week of unpaid leave โ€” and suddenly people are reaching for credit cards at 20% APR. An emergency fund is the simplest financial safety net you can build, and it changes how every other financial decision feels.

February 18, 20255 min read
Retirement

How to Calculate Your Retirement Number (The 4% Rule)

Most people guess at their retirement number and get it wrong by hundreds of thousands of dollars. The good news: there's a straightforward formula that financial planners have used for decades, and understanding it changes how you think about saving today.

March 1, 20256 min read
Planning

How to Calculate Your Net Worth โ€” The Number That Shows If You're Actually Getting Ahead

Most people know their salary. Almost nobody knows their net worth โ€” and that's the number that actually measures financial progress. Add up everything you own, subtract everything you owe. Run that calculation once a year and you'll know immediately whether you moved forward or just stayed busy.

March 5, 20255 min read
Planning

How to Make a Budget That You'll Actually Stick To

Most budgets fail not because the math is wrong but because the design is. People build perfect-looking spreadsheets based on ideal behavior, then abandon them when real life doesn't cooperate. A budget that works isn't about restriction โ€” it's about deciding where money goes before you spend it, and building in enough flexibility to survive imperfection.

March 10, 20256 min read
Savings

How to Set a Savings Goal (and Calculate Exactly What to Save Each Month)

"I want to save more money" is not a goal. It's a wish. "I want $15,000 in 18 months for a house down payment" is a goal โ€” it has a number, a deadline, and implies a monthly action ($833/month). The difference between people who hit savings targets and those who don't usually comes down to specificity, not willpower.

March 15, 20255 min read
Planning

What Is Inflation and How It Quietly Erodes Your Money

Inflation doesn't show up in your bank statement. Your balance stays the same while everything you can buy with it quietly shrinks. $100,000 sitting in a zero-interest account for 10 years at 3% inflation is worth $74,000 in real purchasing power. No theft, no market crash โ€” just time and rising prices doing their work.

March 20, 20255 min read
Planning

Break-Even Analysis: How to Know When Your Business Idea Actually Makes Money

Before you know if a business is profitable, you need to know when it stops losing money. That's the break-even point โ€” the revenue or unit volume at which total costs equal total revenue. Below that point, every sale reduces your loss. Above it, every sale generates profit. Understanding yours turns vague optimism into concrete planning.

March 25, 20255 min read
Planning

How to Set Your Freelance Rate Without Underselling Yourself

The most common freelancing mistake isn't underperformance โ€” it's underpricing. Freelancers regularly charge rates that look competitive until you account for taxes, unpaid hours, lack of benefits, and business expenses. A $60/hour rate that sounds reasonable might deliver $25/hour in take-home income after everything is factored in.

March 30, 20256 min read
Planning

Salary vs. Hourly Pay: Which Actually Pays More?

Comparing a salaried offer to an hourly one isn't as simple as dividing by 2,080 hours. The real comparison requires factoring in overtime eligibility, benefits value, expected hours actually worked, and job stability. A $65,000 salary that requires 55-hour weeks can pay less per effective hour than a $30/hour role with strict 40-hour weeks.

April 5, 20255 min read
Savings

How to Calculate Your Investment Return (ROI, CAGR, and What They Actually Mean)

"My investment is up 40%" tells you almost nothing without context. 40% over 2 years is excellent. 40% over 15 years is poor โ€” barely 2% per year, well below inflation. Investment returns need to be measured per year, net of fees, and compared to appropriate benchmarks. Otherwise you're navigating blind.

April 10, 20256 min read
Home

What Is PMI? When You Pay It, What It Costs, and When You Can Drop It

Private Mortgage Insurance (PMI) is a monthly cost paid by the borrower that protects the lender in case of default. Not you โ€” the lender. If you put less than 20% down on a conventional mortgage, you're likely paying it. On a $350,000 loan, PMI typically adds $100โ€“200/month โ€” $1,200โ€“$2,400/year for something that does nothing for you directly.

April 15, 20255 min read
Debt

Loan vs. Saving Up: The Real Math Behind Which Is Better

The reflexive advice is always "save up, avoid debt." But that's not always the right answer. If saving takes 3 years and the item appreciates โ€” or if you miss opportunity cost by keeping cash โ€” a loan can be the rational choice. The question isn't ideological. It's math.

April 20, 20256 min read