Capital Allocation — Expert Insights & Guides
Mortgages, rent vs buy, and opportunity cost — the tools and guides for major capital decisions.
What Salary Do I Need for a $400K House? The Exact Math (2026)
You need about $109,000/year for a $400,000 house with 20% down at 6.5% (28% DTI standard; $2,539 PITI). With 10% down it rises to ~$126,000; with $1,000/mo of debts, ~$118,000. Full breakdown with rate sensitivity.
How to Calculate Home Affordability: The 4 Rules Lenders Use
Home affordability is calculated using four ratios: the 28% front-end rule, the 36% back-end rule, the 43% DTI ceiling, and the 3x–5x income rule. Most buyers are constrained by their back-end DTI, not their income. A worked example shows exactly what you can borrow at $90,000 gross income with $500/month in existing debt.
How to Remove PMI: When It Cancels Automatically and How to Request It Early
PMI cancels automatically at 78% LTV but you can request removal at 80%. With appreciation, a new appraisal can eliminate PMI years earlier. At $1,200/year per $200,000 borrowed, removing PMI 5 years early saves $6,000. Here is the exact process, the lender rules, and when refinancing beats an appraisal.
Refinance Break-Even Calculator: How Long Until Refinancing Pays Off?
The refinance break-even is closing costs divided by monthly savings. On $9,000 in closing costs saving $225/month, break-even is 40 months. Refinance only if you stay past that point. This guide walks through the exact calculation, what counts as a closing cost, how a cash-out refi changes the math, and when break-even analysis does not apply.
Home Equity Investing Strategy: When to Tap It and When to Let It Grow
Using home equity to invest requires your expected after-tax return to exceed your borrowing cost by a meaningful margin. At a 9% HELOC rate, you need consistent 13%+ returns to justify the leverage risk after tax. This guide covers the complete math, the three scenarios where it works, and the four situations where it destroys wealth.
Lease vs Buy Car: The Complete Financial Comparison (2026)
Leasing costs less monthly but leaves you with nothing at the end. Buying costs more monthly but builds equity. On a $35,000 car: 3-year lease total = $14,400; 3-year loan total = $22,500 but you own a car worth $22,000. This guide compares the real numbers over 3 and 6 years and identifies who should lease and who should buy.
Reverse Mortgage Pros and Cons: The Real Numbers for Retirees
A reverse mortgage lets homeowners 62+ borrow against their home equity with no required monthly payments. The loan accrues interest and is repaid when the home is sold. It can provide vital cash flow — but costs $15,000–$30,000 upfront and erodes the estate you leave heirs.
True Cost of Downsizing in Retirement: Does Moving Actually Save Money?
Downsizing sounds simple: sell the big house, buy something smaller, pocket the difference. In practice, transaction costs (6–10%), capital gains tax on profit above $500,000 (married), moving costs, and renovation costs on the new property consume 30–60% of the apparent savings.
HELOC vs Cash-Out Refinance: Which Is Better in 2026?
A HELOC keeps your first mortgage intact and adds a flexible variable-rate line. A cash-out refi replaces your mortgage at today's rate. In a high-rate environment where your current rate is 3–4%, a HELOC almost always wins — here is the side-by-side math.
Investment Property vs Primary Home: Which Should You Buy First?
Buying a rental property first (house hacking) lets you use owner-occupied financing (3.5–5% down vs 20–25%) and live rent-free while tenants pay your mortgage. The maths only works if local rent covers at least 80% of PITI. Here is the full comparison.
Which States Can a Median Earner Afford to Buy a Home In? (2026 Data)
Only 16 of 50 states have a median household income above the income required to qualify for the state's median home at 6.5% rates. We calculated the affordability gap for all 50 states using Census ACS 2023 income data and 2026 home prices.
First-Time Home Buyer Guide: What No One Tells You Before You Start
First-time buyers face four sequential decisions: how much you can borrow (DTI under 43%), how much to put down (3–20%), which loan type fits (FHA vs conventional), and what the all-in monthly cost actually is. This guide walks through each with real numbers.
Should I Pay Off My Mortgage Early? The Math Behind the Decision
Paying off your mortgage early beats investing when your mortgage rate exceeds your after-tax investment return. At 7% mortgage rate vs 8–10% market return, investing often wins. At 3–4%, investing clearly wins. Here is how to run the numbers for your specific rate.
How to Save for a House: Timeline, Accounts, and Strategies
Saving for a house requires more than just the down payment — closing costs (2–5%), moving costs, and cash reserves add another 3–6%. On a $350,000 home with 5% down, the total cash need is roughly $38,000–$50,000. Here is the fastest path to get there.
Rent vs Buy in 2026: A Guide for First-Time Buyers to the Real Numbers
Mortgage rates at 6.47%, median home prices at $429,300, and first-time buyers at a record-low 21% share. Here is exactly how to run the rent vs buy math for the current housing market — not advice written for a different decade.
When to Refinance Your Mortgage: The Break-Even Math You Need First
Refinancing lowers your rate but costs 2–5% of the loan in closing costs. The break-even period tells you how many months until monthly savings exceed those costs. Learn the formula, a $350,000 worked example, and the 1% rate-drop guideline.
How Much Down Payment Do You Need? All Options Compared by True Cost
You do not need 20% down — FHA requires 3.5%, conventional allows 3%, and VA loans require 0%. This guide compares each down payment tier by monthly payment, PMI cost, total interest, and opportunity cost of the capital locked in equity.
Car Lease vs Buy: The True Cost Comparison Most Dealerships Hide
Leasing looks cheaper monthly because you pay only for depreciation — but lease payments never end. A side-by-side worked example comparing a 3-year lease vs a 5-year purchase on a $40,000 car shows who wins over a 10-year period.
How Much Car Can I Afford? The 20/4/10 Rule Explained
The 20/4/10 rule: put 20% down, finance for no more than 4 years, and keep total car costs (payment + insurance) under 10% of gross monthly income. On a $6,000/month income, your total car budget is $600/month — about a $25,000 car with 20% down at current rates.
What Are Closing Costs on a House? (Complete List for 2026)
Closing costs typically run 2–5% of the loan amount — on a $300,000 mortgage, expect $6,000–$15,000. Here is a complete itemised list of every closing cost, who pays what, and how to reduce them.
What Is a HELOC? How It Works, Rates, and When to Use One
A HELOC (Home Equity Line of Credit) lets you borrow against your home's equity at a variable rate, typically up to 85% of home value minus your mortgage balance. Here is how draws, repayments, and rate resets work.
How Much House Can I Afford? By Salary With Examples
The 28/36 rule says keep your mortgage payment under 28% of gross monthly income and total debt under 36%. On a $80,000 salary, that is a $1,867/month payment — equivalent to a roughly $310,000 loan at 7%.
FHA Loan vs Conventional Loan: Which Is Better in 2026?
FHA loans require only a 580 credit score and 3.5% down, but require lifetime mortgage insurance. Conventional loans need 620+ and 3–20% down, but PMI cancels when you reach 20% equity. The right choice depends on your credit and down payment.
What Is Escrow on a Mortgage? How It Works and What It Costs
Escrow on a mortgage is a separate account that collects monthly payments for property taxes and homeowner's insurance, then pays those bills on your behalf. Learn what is included, how the payment is calculated, and when an escrow shortage happens.
How to Calculate Home Equity (and What You Can Do With It)
Home equity = current home value minus your outstanding mortgage balance. If your home is worth $400,000 and you owe $260,000, you have $140,000 in equity — representing a 35% equity stake.
What Is PMI on a Mortgage? (And How to Get Rid of It)
PMI (Private Mortgage Insurance) is required when you put less than 20% down on a conventional loan. It typically costs 0.5–1.5% of the loan amount per year. Here is exactly when you can cancel it.
The True Cost of Homeownership: 9 Costs Your Mortgage Payment Hides
The mortgage P&I payment is just the entry fee. Property tax, insurance, maintenance, repairs, and opportunity cost typically add 30–60% on top. A $400k home worked example reveals the real monthly cost: $3,824 vs the quoted $2,014.
What Credit Score Do You Need to Buy a House in 2026?
You can get an FHA loan with a 580 credit score (3.5% down), but a conventional loan requires 620+. A 760+ score unlocks the lowest mortgage rates and saves tens of thousands over 30 years.
The Starter Home Trap: How Many Years to Break Even, Rent vs Buy
Selling a home for what you paid is not breaking even. Buy-side and sell-side transaction costs total 7-11%, meaning a home needs to appreciate that much just to reach zero. See exactly how many years you need to hold before buying beats renting.
The Hidden Trap of Fixed-Rate Mortgages
A fixed-rate mortgage only fixes principal and interest. Property tax reassessments and homeowners insurance renewals can still raise your monthly payment by hundreds of dollars — here is exactly how escrow shortages work.
Is Renting Really Throwing Money Away? The Honest Math
Renting feels like dead money, but mortgage interest, property tax, insurance, and maintenance are just as unrecoverable. A $100,000 down payment case study reveals the real opportunity cost of buying.