How to Fix Your Credit Before Buying a Home
A month-by-month plan built backward from your target closing date, ordered so nothing you do early gets undone by something you do late.
Most credit advice is a list. This is a sequence, because the order genuinely matters: disputes take 30 to 45 days per round, utilization changes show up in about a month, and both become risky inside 90 days of a closing.
Work backward from when you want the keys.
Everything that carries risk — disputes, new accounts, closing old cards, large purchases — belongs in the early months. The last 90 days before a mortgage application should be the most boring 90 days of your financial life. See the timing trap for why.
12 months out — find out what you are working with
Pull all three reports at AnnualCreditReport.com. Free, weekly, no card. Save the PDFs permanently.
Read all three, line by line. Not a skim — the sections, the dates, the balances. Errors appear on one bureau and not the others constantly, and you cannot see that without all three.
Write down every factual error. Account, field, what it says, what is correct, and what document proves it.
Get a realistic score picture. Your card issuer’s free score is directional only; mortgage lenders use older FICO versions on a tri-merge pull that often read lower. Assume the real number is somewhat below what your app shows.
Talk to a loan officer now, not later. This is the step people skip and it is the highest-value one on the list. Twenty minutes with a lender tells you which program fits, what your actual gap is, and — critically — whether the binding constraint is your score at all. It is frequently debt-to-income or a bankruptcy waiting period instead, and those have completely different fixes.
A HUD-approved housing counselor gives you the same conversation with no product to sell. Free, and the directory is at hud.gov/findacounselor.
12 to 9 months out — dispute everything worth disputing
This is the window. Two full 45-day dispute rounds fit here with room to spare, and the disputed flag has time to clear well before any lender sees your file.
File specific, documented disputes. Name the account, the field, the correct value, the evidence. Send to the bureaus and the furnishers. The full method is in how to dispute credit report errors, and the letter is free on this site.
Prioritise in this order:
- Accounts that are not yours at all
- Recent late payments reported in error — recency dominates scoring
- Wrong dates of first delinquency, which control when items fall off
- Duplicate collections, where two entries report the same money
- Wrong balances and missing credit limits, which distort utilization
- Anything reporting past its seven-year window
Deal with collections deliberately. Validate before you pay, know your state’s statute of limitations before you make any payment, and check whether the entry is wrong before assuming your only option is to pay it. See collections: what can and cannot be removed.
Do not pay an old collection reflexively. In many states a payment restarts the lawsuit clock. And ask your loan officer what the program requires — some programs require collections resolved before closing, others do not, and that answer determines whether paying is necessary at all.
9 to 6 months out — fix the structure
Disputes are resolving. Now work on what the score is actually measuring.
Bring everything current. Any account still past due gets brought current first, before anything else. An ongoing delinquency outweighs every optimization below it.
Attack utilization. Balances against limits on revolving accounts is the second-largest scoring factor and the fastest one to move — it updates with each statement cycle, roughly monthly. Target under 30% overall, and under 10% if you can reach it. Per-card utilization matters too, not just the total: one maxed card among four empty ones still hurts.
Set up autopay on everything. Payment history is the largest factor, and a single 30-day late inside the next year would undo months of work. Autopay the minimum on every account, then pay more manually. The autopay is insurance, not the plan.
Do not close old credit cards. Closing reduces your available credit — raising utilization — and eventually shortens your credit history. An old card with no annual fee should stay open with a small recurring charge on it. This is the most common self-inflicted wound in the whole process.
Ask for credit limit increases. A higher limit on an existing card lowers utilization immediately. Confirm the issuer will do it with a soft pull before you ask.
Reduce debt-to-income if that is the real constraint. If your loan officer flagged DTI, paying off a car loan or a small installment balance may matter far more than any score work. DTI denies more applications than credit score does.
6 to 3 months out — consolidate and be careful
Re-pull all three reports. Verify every dispute resolved the way you were told, at all three bureaus. Deletion at one is not deletion at three.
File a second round only if genuinely warranted. New evidence, or an item that came back “verified” that you can now document better. This is the last comfortable window for it.
Keep utilization low and steady. Not zero — a small reported balance is generally read better than all zeros — just consistently low.
Stop opening anything. No new cards, no car loan, no store financing, no buy-now-pay-later, no co-signing. Each new account adds an inquiry, lowers your average account age, and adds a payment to your DTI.
Start documenting your down payment. Underwriters trace deposits. Money that appears without a paper trail becomes a problem at exactly the wrong moment. Gift funds need a gift letter and a documented transfer. Get this organised now.
A vehicle loan taken during this window is the classic mortgage-killer. It adds a monthly payment to your DTI, adds an inquiry, adds a brand-new account, and does all three at once. If you need a car before you need a house, buy the car first and then reset this timeline — do not stack them.
3 months out to closing — change nothing
The rule for this window is one word: freeze.
No new disputes. They surface on the pre-closing credit refresh and can stall a file that was clear to close. If you find something serious, tell your loan officer and decide together rather than filing.
No new accounts, no new inquiries, no closed accounts.
No large purchases on credit. Furniture and appliances after closing, not before. Lenders re-pull credit shortly before closing and a new financed sofa has genuinely blown up closings.
No job changes if avoidable. Employment gets re-verified, sometimes days before closing.
No unusual deposits or transfers. Every large deposit gets sourced. Moving money between your own accounts to “look better” creates work, not confidence.
Keep paying everything on time. A late payment during the process is the worst possible timing.
What to expect from all this
Realistically: errors get corrected, utilization improvement shows up within a month or two of paying balances down, and consistent on-time payments compound quietly across the year.
What none of it does is erase accurate negative history. A charge-off from two years ago is still there at closing. What changes is everything around it — and underwriters weight recent behaviour heavily, so twelve clean months alongside an old derogatory is a materially different file from the same derogatory with nothing beside it.
We are deliberately not putting a number on the outcome. Anyone promising you a specific point gain by a specific date is selling something, and under the Credit Repair Organizations Act a for-profit company making that promise may also be breaking federal law.
If you are further out than 12 months
Even better. Everything above still applies, and you gain the one thing the twelve-month plan is short of: time for positive history to accumulate. Age of accounts, on-time payment streaks, and the fading weight of old derogatory items all improve with nothing but months.
Read building credit after cleanup for what to do with that extra runway.