The First-Time Home Buyer Checklist: 18 Months to Keys

Most first-time buyers start with the listings, which is roughly the last 10% of the project. The first 90% is a 12-18 month runway of unglamorous preparation, and it, not the house hunt, decides your rate, your monthly payment, and how calm the whole thing feels. Here is the runway, in order.

12-18 months out: clean up the inputs

• Pull your credit reports from all three bureaus (free, weekly) and dispute errors now: corrections take weeks to months, and your score prices every dollar you will borrow.
• Pay card balances down, since utilization moves scores faster than almost anything else, and stop opening new accounts or financing anything.
• Know your debt-to-income ratio. Lenders cap the share of gross income your debts may consume, so run the debt-to-income calculator and see whether an old car loan or student payment is quietly shrinking your future mortgage.
• Start a boring paper trail: steady deposits into one account. Underwriters will later ask you to explain large, irregular movements of money.

9-12 months out: build the cash and the real budget

• Set the down payment target with the down payment calculator, remembering that 20% is a preference, not a rule, and that closing costs and moving expenses ride on top. The saving plan itself, how much, where to park it, what not to raid, is covered in our down payment guide.
• Budget the whole cost of owning, not the loan: property taxes, insurance, utilities you may not pay today, and maintenance (many owners plan on roughly 1-2% of the home's value per year).
• Set your price range from the payment, not from what anyone will approve. The mortgage affordability calculator works backward from a monthly number your budget actually clears.

3-6 months out: programs, pre-approval, rate shopping

Know the programs exist. FHA loans are built for buyers with smaller down payments or thinner credit. VA loans serve eligible service members, veterans, and some surviving spouses. Nearly every state runs a housing finance agency with first-time buyer assistance: down payment help, favorable loan terms, or both. None of this requires a specific lender; the programs travel across many of them, and eligibility rules change, so read the current ones rather than folklore.

Get pre-approved, not just pre-qualified. A pre-qualification is an estimate from a conversation; a pre-approval means documents were verified, and sellers treat the two very differently. Gather tax returns, pay stubs, and account statements once, and reuse the folder.

Then shop the rate like it is a price, because it is. Apply with several lenders inside a tight window, ideally the same week: credit scoring models group mortgage inquiries made close together and treat them as one. Compare official loan estimates from the same day, line by line, looking at the rate, the APR, and the lender fees separately, since a shiny rate can hide an ugly fee line. Asking one lender to beat another's estimate is normal, expected, and frequently works.

Under contract: the last 30-45 days

• Pay for the inspection and attend it. It is a few hundred dollars protecting a few hundred thousand, and the report is your negotiating leverage for repairs, credits, or a clean exit.
• Freeze your finances. No new credit cards, no financed furniture, no job changes you can postpone, no unexplained transfers. Lenders re-check before funding, and new debt between approval and closing genuinely kills deals.
• Verify wiring instructions by phone using a number you already have, never one from an email. Wire fraud targeting closings is common and mostly unrecoverable.
• Do the final walk-through the day before or the day of closing: agreed repairs done, house empty, nothing newly broken.

Five mistakes that cost the most

1. Shopping one lender. The first quote is a starting bid, and the spread between lenders is real money every month for decades.
2. Buying at the top of the pre-approval. The lender is sizing their risk, not your life. Leave room for the furnace, the raise that does not come, the kid.
3. Waiving the inspection to win a bidding war without understanding what you just accepted.
4. Emptying every account to close, so the first surprise repair lands on a credit card at card rates.
5. Confusing approval with affordability. Approval is a lender's opinion about their downside; affordability is your budget's opinion about your life.

Eighteen months of moving parts is a lot to hold in your head, and most of it is really one question: is the money on track? Keeping the savings target, the debts you are paying down, and the monthly budget in one place turns the runway from a worry into a checklist.