Buying a home is one of the most significant financial decisions most people will ever make. But before a lender hands over hundreds of thousands of dollars, they want to know one thing above all else: can you be trusted to pay it back?

That answer lives in your credit score.

A strong credit score doesn’t just open the door to mortgage approval, it determines the interest rate you’ll pay, the loan products available to you, and ultimately how much your home will cost you over 15 or 30 years. The difference between a 620 and a 760 score can translate to tens of thousands of dollars in extra interest. For buyers in competitive markets like Phoenix, Scottsdale, and the broader Metro Valley, where home prices remain elevated even as inventory loosens, entering the mortgage process with the strongest possible credit profile isn’t just smart, it’s essential.

“Your credit score is the foundation of your mortgage application,” says Cody Schuiteboer, president and CEO of Best Interest Financial. “Lenders use it to assess risk, and even a modest improvement before you apply can dramatically change the loan products available to you and the rate you’re offered.”

Whether you’re a first-time buyer still months away from a purchase or a move-up buyer starting to browse listings, here are 12 proven strategies to strengthen your credit score before you apply for a mortgage.

1. Pull Your Credit Reports and Audit Them for Errors

Before you can fix anything, you need to know exactly what you’re working with. Request your free credit reports from all three major bureaus, Equifax, Experian, and TransUnion, through AnnualCreditReport.com. Review each one carefully for errors: accounts that aren’t yours, incorrect balances, late payments marked incorrectly, or accounts that should have fallen off after seven years.

Errors on credit reports are more common than most consumers realize, and a single inaccurate derogatory mark can suppress your score significantly. Dispute any inaccuracies directly with the reporting bureau. Under the Fair Credit Reporting Act, bureaus are required to investigate and respond within 30 days.

“We’ve seen clients gain 40 to 80 points simply from successfully disputing errors they didn’t even know existed on their reports,” says Ali Zane, CEO of Imax Credit Repair Firm. “Before you do anything else, audit your reports thoroughly. You can’t fix what you can’t see.”

2. Pay Down Revolving Balances to Lower Your Credit Utilization

Credit utilization, the ratio of your outstanding balances to your total available credit, accounts for roughly 30 percent of your FICO score. It is one of the most powerful levers you can pull in a short period of time.

Most financial experts recommend keeping your utilization below 30 percent across all accounts, and ideally below 10 percent if you’re optimizing for a mortgage application. If your credit cards are carrying high balances relative to their limits, aggressively paying them down before your application date can produce a meaningful score increase within one to two billing cycles.

“Utilization is one of the fastest-moving factors in your credit score,” says Schuiteboer. “We advise clients to get their balances as low as possible, ideally under 10 percent of each card’s limit, in the 60 to 90 days leading up to their application.”

3. Avoid Opening New Credit Accounts Before Applying

Every time you apply for a new line of credit, whether it’s a credit card, auto loan, or store financing, the lender performs a hard inquiry on your credit file. Each hard inquiry can lower your score by a few points, and multiple inquiries in a short window can signal financial instability to mortgage lenders.

Beyond the inquiry itself, opening a new account lowers the average age of your credit history and introduces an unpredictable variable into your financial profile right when you want everything looking as stable as possible.

“This is one of the most common mistakes I see buyers make,” says Ryann Brier, licensed real estate agent and investor at City Lights Home Buyers. “They’re excited about buying a home, so they open a new card for furniture rewards or financing a car, not realizing they just complicated their mortgage application. The rule is simple: freeze your credit activity the moment you get serious about buying.”

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4. Make Every Payment On Time — Without Exception

Payment history is the single most influential factor in your credit score, comprising approximately 35 percent of your FICO calculation. A single missed or late payment, even 30 days past due, can drop your score dramatically and remain on your report for seven years.

If you have a history of late payments, the best thing you can do is stop the bleeding immediately and give lenders time to see a consistent pattern of on-time payments. Set up autopay for every account, even if it’s just the minimum payment, to eliminate the risk of accidental misses.

“Consistency is everything,” says Sain Rhodes, a real estate specialist at Clever Offers. “Buyers who come to me with strong, uninterrupted payment histories over 12 to 24 months are in a fundamentally different position than those with sporadic late payments. Lenders want to see that you’re reliable and your payment history is the clearest proof of that.”

5. Don’t Close Old Credit Accounts

It may seem logical to tidy up your credit profile by closing accounts you no longer use, but this can actually backfire. Closing an old account reduces your total available credit, which raises your utilization ratio. It also shortens the average age of your credit history, another factor lenders evaluate.

Unless an account carries an annual fee that isn’t worth keeping, leave old accounts open and occasionally make a small purchase on them to keep them active. The length of your credit history and the depth of your credit mix both contribute positively to your score.

“I always advise buyers not to close anything before applying,” says Nikki Beauchamp, senior global real estate adviser and associate broker at Sotheby’s International Realty. “Lenders want to see longevity and stability. A card you’ve had for 10 years and rarely use is doing more work for your credit profile than you might think.”

6. Request a Credit Limit Increase on Existing Cards

If you’ve been a responsible cardholder, many issuers will approve a credit limit increase with a simple request and sometimes without a hard inquiry. A higher limit with the same or lower balance immediately improves your utilization ratio, which can give your score a meaningful boost.

Call your card issuers directly and ask whether a limit increase would trigger a hard pull. If it won’t, or if the utilization benefit outweighs the inquiry impact, it may be worth pursuing — especially if you’re carrying balances that are currently pushing your utilization above the recommended threshold.

7. Diversify Your Credit Mix Thoughtfully

Lenders and scoring models reward borrowers who have demonstrated they can manage different types of credit responsibly, revolving accounts like credit cards, installment loans like auto or student loans, and potentially a mortgage. This mix accounts for about 10 percent of your FICO score.

The key word is thoughtfully. If you’re missing a major credit type, it may be worth establishing one — but only if it can be done well in advance of your mortgage application and without adding debt you can’t manage. Opening new credit just to improve your mix is counterproductive if it creates inquiries or raises your utilization.

8. Address Collections and Delinquencies Strategically

If you have accounts in collections or delinquencies on your report, your approach to resolving them should be strategic rather than reflexive. Simply paying off a collection account doesn’t automatically remove it from your report and in some older scoring models, a recently paid collection can actually re-activate a dormant negative mark.

“This is where working with a knowledgeable credit professional matters,” says Zane. “Negotiating a pay-for-delete arrangement, where the creditor agrees to remove the account from your report in exchange for payment, is often a far better outcome than just paying the balance. Done correctly, it can produce significant score improvements.”

9. Become an Authorized User on a Responsible Account

If a parent, spouse, or trusted family member has a credit card with a long history, low utilization, and no late payments, ask them to add you as an authorized user. You don’t need to use the card, or even hold the physical card, for that account’s positive history to appear on your credit report and potentially boost your score.

This is a particularly effective strategy for buyers who are newer to credit or working to recover from past financial setbacks.

“I’ve seen authorized user additions add meaningful points to a score relatively quickly,” says Brier. “It’s not a workaround, it’s a legitimate strategy. The key is ensuring the primary cardholder has an impeccable record on that account.”

10. Time Your Application Around Your Credit Cycle

Credit scores are not static, they fluctuate month to month based on when your card balances are reported to the bureaus. Most card issuers report on or around your statement closing date, which may not be the same as your payment due date.

If you know when your balances are reported, you can time your payoff to ensure the bureaus capture your lowest possible balance and therefore your best utilization ratio, before your mortgage lender pulls your credit. This requires some coordination but can produce a materially better score on application day.

11. Work with a Credit Professional If You Need It

There’s no shame in seeking expert guidance, especially when the stakes are as high as a home purchase. A reputable credit counselor or repair professional can help you navigate complex scenarios, multiple collections, a prior bankruptcy, identity theft damage that are difficult to address alone.

“Credit repair is not about gaming the system,” says Zane. “It’s about ensuring your report accurately reflects your financial reality, disputing what’s wrong, and building the strongest legitimate profile possible. For buyers who’ve had financial difficulties in the past, working with a professional six to 12 months before they plan to apply can make the difference between getting a loan and being turned away.”

Be cautious, however: avoid any firm that promises guaranteed results or asks for large upfront fees before providing any services. Legitimate credit counselors operate transparently and won’t make promises no one can guarantee.

12. Give Yourself a Realistic Timeline

Perhaps the most important strategy of all is simply giving yourself enough time. Credit improvement is not a sprint — meaningful, lasting score gains take months of consistent behavior. The buyers who enter the mortgage process in the strongest position are typically those who began working on their credit six to 12 months before they ever spoke to a lender.

“The buyers who are most prepared are the ones who started working on this long before they thought they needed to,” says Angelica VonDrak, associate broker and team leader at Homes in The Wild. “By the time they’re ready to apply, their credit is a reflection of sustained discipline — not a last-minute scramble. That’s the kind of profile that gets you the best rate and the smoothest path to closing.”

Rhodes adds that the preparation pays dividends beyond just the credit score itself. “When buyers come to the table financially prepared, the entire process moves more efficiently,” she says. “They know what they can afford, their lender is confident in them, and they’re in a far stronger negotiating position. In a market where sellers are still evaluating the quality of offers, that matters.”

Beauchamp underscores that in the luxury and move-up segments of the market, lenders scrutinize every detail of a financial profile. “The higher the purchase price, the more critical your credit presentation becomes,” she says. “High-end lenders are experienced at reading between the lines of a credit report. You want every line to tell a story of reliability and responsibility.”

The Bottom Line

Your credit score is one of the few factors in a mortgage application that you have direct control over. Unlike income, down payment size, or the state of the housing market, your credit profile is something you can actively shape given time, strategy, and discipline.

The twelve strategies above aren’t secrets. They’re the fundamentals that real estate professionals and credit experts consistently point to when preparing buyers for one of the most important financial transactions of their lives. Start early, be consistent, and treat your credit improvement as the investment it is because the returns, measured in loan approval, favorable rates, and long-term savings, are substantial.