Credit repair strategies for home buyers: How to get mortgage-ready

Written by Samantha SheltonNMLS 1647301Updated September 2026

Credit repair for home buyers comes down to three moves mortgage underwriting actually rewards: pay every bill on time, dispute the errors sitting on your reports, and get your card balances down. Payment history is 35% of a FICO Score and amounts owed is another 30%, so those two categories alone drive 65% of the number your lender pulls.

The scores each program requires are also lower than most buyers assume. Start by pulling your free official credit reports from all three bureaus. You cannot fix what you have not read.

Learn which credit repair strategies for home buyers move fastest, how long each takes, and which moves quietly hurt you while a loan is in process. If you’re earlier in the journey, start with our Mortgage Basics guide or the Credit & Qualifying hub.

Key takeaways:

• Two categories control 65% of your score: payment history is 35% of a FICO Score and amounts owed another 30%, so on-time payments and lower balances outrank every other tactic combined.
• Utilization is the fastest lever: the CFPB relays the standard expert advice to keep your use of credit at no more than 30% of your total credit limit, and a lower balance reaches your report on the issuer’s next monthly update.
• Disputes run on a legal clock: a credit reporting company generally must investigate within 30 days, extendable to 45, so report cleanup belongs 60 to 90 days before you apply.

What credit score do you need to buy a house?

Lower than the number in your head, and it varies by program rather than one universal cutoff.

• FHA: 580 with 3.5% down, 500 – 579 with 10% down. FHA underwrites off a “minimum decision credit score.” At 580 and above you qualify for maximum financing, which HUD describes as a down payment as low as 3.5% of the purchase price. From 500 to 579 the loan is capped at 90% loan-to-value. Below 500, no FHA-insured financing.¹
• Conventional: no automated-underwriting minimum; 620 on manual files. Fannie Mae’s Selling Guide states that a minimum credit score is not required for Desktop Underwriter loan casefiles, DU assesses creditworthiness against its own risk factors instead. Fannie removed the 620 floor for DU casefiles created on or after November 16, 2025. The 620 minimum representative credit score (640 for ARMs) now applies to manually underwritten loans.
• VA: no VA-set minimum at all. VA says you must meet VA’s and your lender’s standards for credit and income. Every VA credit score number you’ve seen quoted is a lender overlay, not a VA rule.²

The agency floor and the lender floor are different things, and lenders stack overlays on top of program rules, which is why the same file gets different answers from different lenders. Qualifying is also separate from pricing well: what’s a good credit score to buy a house covers where the pricing tiers sit, how your credit impacts buying a house covers what underwriting reads beyond the number, and buying a home with bad credit covers the programs built for a low score.

Step 1: What should you do in the first 30 days?

Stop the bleeding before you try to build. Nothing you do in months two through twelve outruns a new 30-day late landing in month one, because payment history is the heaviest category at 35%.

• Automate every minimum payment: set autopay for at least the minimum on every open account, then treat anything above that as a separate decision. This removes the most expensive mistake in credit repair.
• Bring past-due accounts current first: an account that is currently late does fresh damage every month it stays late. Curing it stops the ongoing harm even though historical marks remain.
• Pull all three reports: lenders order a tri-merge and the bureaus don’t carry identical data. An error on one can be the one that sets your middle score.
• Ask for a goodwill adjustment on isolated lates: a written request costs nothing, but it’s discretionary. Treat removal as upside, not a plan.

Expected impact and timeline: immediate, and the benefit compounds over the following 6 to 12 months as recent history ages.

Step 2: How do you dispute credit report errors?

You dispute directly with the credit reporting company, in writing, with documentation, and it is free. The company generally must investigate within 30 days of receiving your dispute, stretching to 45 in two situations: when you filed after receiving your free annual report, and when you send additional relevant information during the initial 30-day window, which buys the bureau 15 more days. It then has five business days to report results and send an updated report, and a furnisher that corrects information must forward that correction to every company it gave the wrong data to.

• Dispute the field, not the account: “this account is not mine” and “this account shows a 30-day late in March that was paid on time” get different results. Name the field, state the correct value, attach the proof.
• Watch for re-aged debts: the seven-year clock runs from a fixed point in the past, so a date of first delinquency that keeps moving forward is itself an error.
• File with all three bureaus separately: a correction at one doesn’t automatically appear at the other two, and lenders read all three. Keep the resolution letters. Your underwriter may ask.

Expected impact and timeline: 30 to 45 days per dispute cycle. Build in 60 to 90 days before your application if you expect to dispute anything.

Step 3: How do you lower your credit utilization?

Pay balances down before the statement closes, not before the due date. Amounts owed is 30% of a FICO Score, and the CFPB passes along the expert rule of thumb: keep your use of credit at no more than 30% of your total credit limit. Utilization has no memory. It is recalculated from whatever balance your issuer reports this month, which is why it moves without waiting for history to accumulate.

Here’s the piece most buyers miss: issuers usually report the balance as of your statement closing date, not your due date. Paying in full on the due date still lets a high statement balance get reported. Paying down a few days before the statement closes is what changes the reported number.³

• Target the ratio, not the dollars: a $4,000 balance on a $5,000 limit is 80% utilization; the same $4,000 across cards totaling $20,000 in limits is 20%. Pay the highest-utilization card first, not the highest balance.
• Don’t close old cards while repairing: closing one removes its limit from the denominator and can raise overall utilization overnight, and length of credit history is another 15% of the score.
• Ask for a limit increase carefully: a higher limit lowers utilization, but some issuers run a hard inquiry to grant it. Ask whether the review is soft.
• Utilization is not DTI: card balances drive utilization; monthly obligations drive debt-to-income. Underwriters read both, see how to improve your debt-to-income ratio.

Expected impact and timeline: one to two billing cycles. This is the fastest of the five steps.

Step 4: How do you build positive credit history that lasts?

Add accounts that report monthly, then leave them alone. New credit and credit mix are 10% each of a FICO Score, so this is a supporting move, but a thin file with nothing reporting is its own underwriting problem. The full weighting behind what makes up your FICO credit score is worth one read.

• Know the authorized user rules before relying on one: being added to a relative’s card can help consumer scores, but on a manually underwritten mortgage Fannie Mae generally won’t consider authorized user tradelines unless another borrower owns the account or you document that you were the sole payer for at least the 12 months preceding your application. A non-borrowing spouse’s tradeline must be considered.
• Consider a secured card or credit-builder loan: both build payment history from a standing start. Confirm the issuer reports to all three bureaus first.
• Get credit for rent you already pay: rent has historically gone unreported, and adding it builds history without new debt. See reporting rent for a credit boost.

Expected impact and timeline: 6 to 12 months. New accounts carry a short-term drag from the inquiry and reduced average age before they contribute.

Step 5: How do you build the stability underwriters look for?

Underwriting reads more than a score. Reserves, stable income and a clean recent history are what turn a borderline score into an approval, the difference between qualifying at 620 and qualifying comfortably.

• Build reserves alongside the score work: cash left after closing is a documented compensating factor on many programs, and it keeps the next surprise expense from becoming the next late payment.
• Document income the way a lender reads it: two years of consistent employment is the standard frame. If you’re self-employed or recently changed roles, sort that out before you’re under contract.
• Save in one traceable place: large unsourced deposits become underwriting conditions. Money that has been sitting in your account is easier to document than money that arrived last week.
• Know your exit if you buy at a lower score: buying now and improving later is legitimate, though refinancing carries its own credit requirements, see refinancing with bad credit.

Expected impact and timeline: 3 to 12 months, depending on your savings rate. This step doesn’t change your score; it changes what a lender can do with it.

How long does credit repair actually take?

Between 30 days and a year, depending entirely on which problem you’re solving.

One honest caveat: no one can tell you in advance how many points a specific action will produce, because scoring models weigh your whole file rather than one line of it. Anyone quoting a guaranteed point gain on a guaranteed date is describing something the models don’t do. Where your file lands is the subject of how your credit impacts buying a house.

Should you hire a credit repair company?

Usually not, and federal law explains why. A credit repair organization may not charge or receive any money for a service before that service is fully performed, so an upfront fee isn’t a red flag, it’s a statutory violation. The same law bars misrepresenting what those services can accomplish. And no one can remove accurate negative information, at any price, before its reporting period runs out.

• Nonprofit counseling is the better first call: nonprofit credit counseling through the NFCC pairs the report review with a budget and a paydown order, the part most buyers actually need.
• HUD-approved housing counselors are built for this moment: the CFPB describes their advice as independent and “often at little or no cost to you,” and pre-purchase counseling is part of their mandate.
• Your loan officer should read the report with you: a broker sees which lenders price your profile best, a different question from raising the score. The Credit & Qualifying hub covers what lenders weigh.

How do you protect your credit once your loan is in process?

Change nothing. Your lender re-verifies credit before closing, and the most common last-minute denial is self-inflicted.

• Open no new accounts: financing furniture, appliances or a car before closing changes your debt-to-income and can retrigger underwriting on a cleared file.
• Rate shopping is protected; retail shopping is not: for newer scoring versions, mortgage inquiries inside any 45-day span are grouped as one, and FICO Scores ignore inquiries made in the 30 days prior to scoring. Shopping several lenders in a tight window is designed to be safe.
• Hard inquiries fade on a known schedule: they stay on the report up to two years but affect FICO Scores for one year.
• Don’t close accounts or move large sums on a hunch: closing cards mid-process raises utilization, and big transfers create deposits your underwriter has to source.

What Michigan buyers should know

The credit-repair playbook is national, but the assistance programs that make a repaired-but-imperfect file work in Michigan are state-run, and they have their own gates.

• MSHDA assistance runs through approved lenders, with its own rules: the MI Home Loan and MSHDA’s down payment assistance are originated through MSHDA-approved lenders, and MSHDA sets its own minimum credit score and homebuyer education requirement separate from FHA or conventional guidelines. It revises those on its own schedule, confirm the current threshold with MSHDA or an approved lender, not last year’s number.
• HUD-approved housing counseling agencies work statewide: the CFPB calls their guidance independent and available “often at little or no cost.” For a buyer sequencing disputes, paydowns and an assistance application at once, that’s the work a credit repair company bills for.
• Back-time your disputes to Michigan’s spring market: a bureau gets 30 days, up to 45, per dispute cycle. To write offers in April, pull reports and file disputes by December or January, not March.
• A 580 score and 3.5% down still opens the door here: FHA’s credit score tiers apply in Michigan exactly as everywhere else, and a Michigan broker can pair that FHA file with MSHDA assistance where you qualify.

FAQ: Credit repair for home buyers

Here are answers to common questions about credit repair strategies for home buyers.

How long does it take to repair credit to buy a house?

It depends which problem you’re fixing. Utilization changes reach your report in one to two billing cycles, a bureau has 30 days (up to 45) to investigate a disputed error, and rebuilding after late payments runs 6 to 12 months because scoring models weigh recent history most heavily. Collections age off after seven years. Meanwhile, see buying a home with bad credit.

What credit score do I need to buy a house?

There is no single number. FHA insures down to a 580 minimum decision credit score with 3.5% down, and 500 to 579 with 10% down. VA sets no minimum at all, you meet VA’s and your lender’s standards. Fannie Mae requires no minimum score for Desktop Underwriter casefiles, with 620 (640 for ARMs) on manual files. Lender overlays sit on top; what’s a good credit score to buy a house explains where pricing improves.

Should I pay off collections before applying for a mortgage?

Not automatically, and paying does not restart the clock. The seven-year period runs from 180 days after the delinquency that preceded the collection, and later payment is irrelevant to it. Mortgage lenders also pull older FICO versions (Score 2, 4 and 5), so a zero balance doesn’t remove the tradeline. Fannie Mae doesn’t require paying off collections or non-mortgage charge-offs on a one-unit principal residence at all. Ask before you spend the cash; our mortgage basics guide connects the pieces.

Do credit repair companies actually work?

They can only do what you can do free: dispute inaccurate information with the bureaus. No one can remove accurate negative information before its reporting period ends, and federal law bars a credit repair organization from taking payment before the service is fully performed, so an upfront fee is a violation, not just a warning sign. NFCC or HUD-approved counseling costs little or nothing. If you already own, see refinancing with bad credit.

The bottom line on credit repair for home buyers

Credit repair for home buyers is three moves in priority order: pay on time, dispute what’s wrong, cut utilization. Payment history is 35% of a FICO Score and amounts owed another 30%, so those two control 65% of the number your lender pulls. Utilization moves in one to two billing cycles, disputes run a 30-to-45-day legal clock, and rebuilding after derogatory marks takes 6 to 12 months. The thresholds are lower than most buyers think, 580 for FHA with 3.5% down, no minimum score for VA or for Fannie Mae’s automated underwriting, 620 on manually underwritten conventional files. What actually varies is the lender.

If you’re ready to find out which lenders will say yes to the credit profile you have today, talk to Align Lending. We’ll read your report with you and shop your scenario across our lender network so you see the options side by side. Call 248-506-5727 or start online today.

Footnotes:

1. Align Lending is not acting on behalf of or at the direction of FHA or HUD. FHA minimum decision credit score tiers and loan-to-value limits are set by HUD in the Single Family Housing Policy Handbook 4000.1 and are subject to change. Return to text.

2. Align Lending works with VA-approved lenders and is not endorsed or sponsored by the Dept. of Veterans Affairs or any government agency. VA sets no minimum credit score; any score requirement you encounter on a VA loan is set by the lender. Return to text.

3. Example figures in this article are hypothetical and for educational purposes only; they do not constitute an advertisement of credit terms or a rate quote under federal or state lending laws. Credit scoring models weigh your entire file, so no specific point change can be promised from any single action, and your results will differ. Return to text.

Figures current as of August 2026; verify with the linked source before relying on them. Program rules and credit score thresholds change.

Sources: FICO score category weights of 35% payment history, 30% amounts owed, 15% length of credit history, 10% new credit and 10% credit mix; the mortgage-industry use of FICO Score 2 (Experian), FICO Score 5 (Equifax) and FICO Score 4 (TransUnion) with the middle score selected; the mortgage rate-shopping window of any 45-day span; the 30-day buffer during which inquiries are ignored; and hard inquiries remaining on a report up to two years while affecting scores for one year, myFICO. Credit reporting company investigation within 30 days, extension to 45 days after a free annual report or when the consumer supplies additional relevant information during the 30-day period, notification of results within five business days, and the furnisher’s duty to forward corrections, Consumer Financial Protection Bureau (Ask CFPB). The statement that experts advise keeping use of credit at no more than 30 percent of the total credit limit, and the right to one free credit report each year from each of the three nationwide consumer reporting companies at AnnualCreditReport.com, Consumer Financial Protection Bureau. HUD-approved housing counseling agencies offering independent advice “often at little or no cost to you,” Consumer Financial Protection Bureau. Seven-year reporting limit for accounts placed for collection or charged to profit and loss, and the seven-year period beginning upon expiration of the 180-day period beginning on the date of commencement of the delinquency which immediately preceded the collection activity, 15 U.S.C. § 1681c(a)(4) and (c)(1). Prohibition on a credit repair organization charging or receiving money for any service before that service is fully performed, and prohibitions on misrepresenting services, 15 U.S.C. § 1679b(a) and (b). FHA minimum down payment as low as 3.5% of the purchase price, HUD. FHA minimum decision credit score of 580 for maximum financing, 500 – 579 limited to 90% LTV, and ineligibility below 500, HUD Handbook 4000.1. No minimum credit score for DU loan casefiles, and minimum representative credit scores of 620 for fixed-rate and 640 for ARM manually underwritten loans, Fannie Mae Selling Guide B3-5.1-01 (04/22/2026); removal of the 620 minimum for DU casefiles created on or after November 16, 2025, Fannie Mae. No requirement to pay off collections or non-mortgage charge-offs on one-unit principal residences, with payoff required on second homes and two- to four-unit owner-occupied properties when such accounts total more than $5,000, and on investment properties for individual accounts of $250 or more and for accounts totaling more than $1,000, and the exclusion of medical collections, Fannie Mae Selling Guide B3-5.3-09, DU Credit Report Analysis. Treatment of authorized user tradelines on manually underwritten loans, including the 12-month sole-payer documentation exception and mandatory consideration of a non-borrower spouse’s tradeline, Fannie Mae Selling Guide B3-5.3-06. Requirement that a borrower meet VA’s and the lender’s standards for credit and income, U.S. Department of Veterans Affairs.

This article is for informational purposes only and is not intended to provide legal, financial, or tax advice. Credit scoring outcomes cannot be guaranteed, and no result described here is promised for your file. Program requirements, credit score thresholds and lender overlays change and vary by loan program and lender; confirm current requirements with your lender and consult a qualified professional about your situation. Align Lending is an independent Michigan mortgage broker, NMLS #2041154.

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