Buying a first home is equal parts emotional and financial — and the two fight each other constantly. The emotional side wants the house now; the financial side needs a budget, a down payment and a payment you can live with for years. This guide walks through the ten steps in the order they matter, with the real numbers, so the financial side stays in control while you find a home you love.
Your credit score is the single biggest lever on your mortgage rate, and it takes months to move. Check it before you do anything else. A 760+ score unlocks the lowest advertised rates; a 620 is the conventional floor; FHA accepts 580. The gap between a 660 and a 760 score is often half a percentage point or more — worth tens of thousands over 30 years. See what credit score you need for the exact thresholds, and fix any errors on your report before a lender sees them.
Do not let a lender tell you how much you can afford — they will approve you for more than you should spend. Use the 28% rule instead: your total housing payment (PITI — principal, interest, tax, insurance) should stay under 28% of gross monthly income. On a $6,000 monthly income, that is $1,680 a month for housing, not the $2,500 a lender might wave at you. Anchor your own number before you apply.
Twenty percent down is ideal because it removes PMI — but it is not required. Conventional loans allow 3% for first-time buyers, FHA allows 3.5%, and VA and USDA allow 0% for eligible buyers. On a $350,000 home, 3% is $10,500 versus $70,000 for 20%. The trade-off: a smaller down payment means PMI (0.5% to 1.5% of the loan a year) until you reach 20% equity. See how much down payment you need for the full comparison.
A pre-approval letter tells sellers you are a serious, qualified buyer and shows you your real rate and maximum loan. It requires verified documents — two years of W-2s and tax returns, pay stubs, bank statements — and takes one to three days. Do this before you start touring homes; in a competitive market, offers without it get ignored. It does not lock you into any lender.
Closing costs run 2% to 5% of the loan amount, on top of your down payment — $7,000 to $17,500 on a $350,000 loan. They cover the lender's fees, appraisal, title search and insurance, and prepaid taxes and insurance. Many first-time buyers are caught off guard by this second bill at the closing table. See how much closing costs are for the full breakdown, and negotiate a seller credit if the market allows.
Your mortgage is more than principal and interest. Property tax and insurance add hundreds a month — often $400 to $800 — and they are not optional. On a $350,000 home at 6.5% with 20% down, the loan payment is about $1,770, but the full PITI with tax and insurance is closer to $2,300. Model the full number, not just the loan, before you commit to a house.
Property tax swings your payment by hundreds depending on where you buy. The same $400,000 home carries a $9,880 tax bill in New Jersey and $1,120 in Hawaii — a $730 monthly difference. Compare state and city pages before you fall in love with a specific address, and read the property taxes by state breakdown.
Price, closing costs and repairs are all negotiable. In a buyer's market you can ask the seller to cover closing costs or fix inspection findings. Even in a seller's market, an inspection contingency lets you renegotiate or walk away when a major defect surfaces. Do not let the excitement of winning an offer stop you from negotiating the terms that protect you.
An inspection costs $300 to $500 and routinely finds issues worth far more — a failing roof, old wiring, foundation cracks. Skipping it to make your offer more attractive is one of the most expensive mistakes a first-time buyer can make. The seller is not obligated to fix everything, but knowing what you are buying lets you negotiate or walk away with your deposit intact.
A house brings surprises — the water heater fails, the roof leaks, the HVAC dies. Budget roughly 1% of the home's value per year for maintenance ($3,500 on a $350,000 home), and keep a separate 3-to-6-month emergency fund after the down payment and closing costs. Buying a home with no cash cushion is how "house poor" happens. The worst outcome is not renting a while longer — it is owning a home you cannot afford to maintain.
As little as 3% (conventional) or 3.5% (FHA), but 20% removes PMI. Most first-time buyers put down 5% to 10% and accept PMI until they build equity.
From pre-approval to closing, typically 30 to 60 days. Pre-approval takes days; underwriting after you have a contract takes a few weeks.
Buying at the top of their approved budget and underestimating the true PITI plus maintenance. Buy for comfort, not for the maximum a lender will approve.
Not legally, but a good buyer's agent costs you nothing directly (the seller typically pays the commission) and helps with pricing, negotiation and contracts.
Start with the affordability calculator to anchor your budget, then walk through the numbers on the HomeMath mortgage calculator before you talk to a lender.
Reading is step one. Step two is running your own numbers — taxes, insurance, PMI and all.
Open the mortgage calculator