5 Ways to Improve Your Credit Score Before Applying for a Mortgage

If you want to improve your credit score before applying for a mortgage, you are already thinking like a smart homebuyer. Your credit score is one of the first things a mortgage lender looks at when you submit an application. It tells the lender how reliably you have managed debt in the past and helps them decide whether to approve your loan and at what interest rate.

A strong credit score does not just improve your chances of approval. It can also unlock lower interest rates, better loan terms, and a faster processing experience. A weak score, on the other hand, can lead to outright rejection or force you to accept unfavourable conditions.

The good news is that credit scores are not fixed. With the right steps taken early enough, you can significantly improve your credit score before applying for a mortgage and walk into the process with confidence.

At AG Mortgage Bank, we want every applicant to come in prepared. Here are five proven ways to improve your credit score before applying for a mortgage in Nigeria.

1. Check Your Credit Report and Fix Any Errors

The first step to improving your credit score before applying for a mortgage is knowing exactly where you stand. In Nigeria, the primary credit bureaus are CRC Credit Bureau, FirstCentral Credit Bureau, and CreditRegistry. You are entitled to request your credit report from any of these bureaus, and reviewing it should be your very first move.

When you pull your report, look carefully for the following:

• Loans or credit facilities listed under your name that you did not take
• Late payment records that do not accurately reflect your repayment history
• Closed accounts still showing as open or outstanding
• Incorrect personal information, such as your BVN, name spelling, or address

Errors on credit reports are more common than most people realise, and they can drag your score down unfairly. If you find any inaccuracies, file a dispute with the relevant credit bureau immediately. Corrections can take a few weeks to reflect, so the earlier you start this process, the better.

Knowing your current score also helps you set a realistic timeline. If your score needs significant improvement, you may want to delay your mortgage application by six to twelve months to give yourself enough time to make meaningful progress.

2. Pay Down Outstanding Debts

Your credit utilisation ratio is a major factor in your credit score calculation, and paying it down is one of the fastest ways to improve your credit score before applying for a mortgage. This ratio measures how much of your available credit you are currently using. The higher the ratio, the more it signals to lenders that you may be overstretched financially.

For example, if you have a credit card with a N200,000 limit and you are currently carrying a N160,000 balance, your utilisation rate is 80 per cent. Most financial experts recommend keeping this figure below 30 per cent wherever possible.

Before applying for a mortgage, focus on paying down your most utilised credit facilities. This includes credit cards, personal loans, buy-now-pay-later balances, and any revolving credit lines. Even reducing one high-balance account can produce a noticeable improvement in your credit score.

Beyond the credit score impact, reducing your outstanding debt also improves your debt-to-income ratio, which mortgage lenders use separately to assess how much of your monthly income is already committed to existing repayments. The less you owe, the more room lenders see for a new mortgage obligation.

3. Pay All Bills and Loan Instalments on Time

Payment history is the single most influential factor when you want to improve your credit score before applying for a mortgage. Every time you miss a payment or pay late, it gets recorded by your lenders and reported to the credit bureaus. These records stay on your credit file and continue to affect your score for years.

If you have a pattern of late payments in your history, you cannot erase them overnight. But you can start building a consistent record of on-time payments going forward. Lenders look at trends, and a period of reliable repayment after a difficult patch still works in your favour.

Practical steps to protect your payment history include:

• Setting up direct debits or standing orders for recurring loan repayments
• Using phone reminders or calendar alerts for manual payments
• Prioritising loan and credit card payments above discretionary spending when cash is tight
• Communicating early with lenders if you foresee difficulty meeting a payment, as many will offer temporary arrangements rather than report a missed payment

If you have any currently overdue accounts, make settling them a priority. An active default on your credit file is one of the most damaging things a mortgage lender can see.

4. Avoid Taking on New Credit Before Applying

In the months leading up to your mortgage application, resist the temptation to apply for new loans, credit cards, or any other form of credit. This is a critical but often overlooked step when working to improve your credit score before applying for a mortgage. Every time you formally apply for credit, the lender performs a hard inquiry on your credit file. Each hard inquiry causes a small but real dip in your credit score.

One or two inquiries over time are not a serious concern. But multiple applications in a short window send a signal that you may be financially stretched or desperate for credit, which raises red flags for mortgage lenders.

Beyond the inquiry effect, taking on new debt also increases your overall obligations, which reduces the amount a mortgage lender may be willing to offer you and can complicate your debt-to-income calculation.

The general guidance is to avoid any new credit applications for at least three to six months before submitting a mortgage application. Use that period to stabilise your financial position rather than expand it.

If you genuinely need a financial product during this time, speak to a mortgage adviser first about how it might affect your application before proceeding.

5. Build a Longer and More Consistent Credit History

One of the most sustainable ways to improve your credit score before applying for a mortgage is to build a longer, more consistent credit history. Lenders are not just looking at where your score is today. They want evidence that you have managed credit responsibly over a sustained period. A short or thin credit history, even without any negative marks, can still make it harder to secure a mortgage at favourable terms.

If you are relatively new to formal credit, there are practical ways to start building a trackable history:

• Maintain an active bank account with consistent, regular transactions
• Use a credit card for routine purchases and pay the balance in full each month
• Take a small personal loan and repay it diligently on schedule
• Keep existing credit accounts open and active, even if you are not actively using them, as they contribute to your history length

For Nigerians who have mostly transacted informally or in cash, this can feel like starting from scratch. But building credit history is a cumulative process. Every month of responsible, documented financial behaviour adds to your profile.

If you are planning to apply for a mortgage in the next one to two years, this is the time to start deliberately using and repaying credit so that your file tells a compelling story by the time your application lands on a lender’s desk.

How Long Does It Take to Improve Your Credit Score Before Applying for a Mortgage?

There is no universal answer, but here is a general guide based on where you are starting from:

• Minor improvements such as reducing utilisation or correcting an error can reflect within 30 to 60 days
• Building a pattern of on-time payments typically shows measurable improvement within three to six months
• Recovering from a significant default or period of missed payments can take twelve months or more of consistent positive behaviour

The key takeaway is to start early. Do not wait until you have found a property or set a move-in date to begin working on your credit score. The sooner you start, the stronger your position will be when you are ready to apply.

What Credit Score Do You Need for a Mortgage in Nigeria?

Different lenders have different thresholds, and scoring models can vary across credit bureaus. At AG Mortgage Bank, we assess each applicant holistically, which means your credit score is one important input among several, including your income stability, employment history, savings record, and the value of the property you are purchasing.

That said, a higher score consistently leads to better outcomes. Applicants who take deliberate steps to improve their credit score before applying for a mortgage are more likely to be approved, more likely to qualify for competitive interest rates, and more likely to complete the process without delays or additional conditions.

If you are unsure where your credit score stands or what it means for your mortgage eligibility, our team at AG Mortgage Bank is happy to walk you through it during a pre-application consultation.

Start the Process with AG Mortgage Bank

Taking the time to improve your credit score before applying for a mortgage is one of the smartest financial decisions you can make as a homebuyer in Nigeria. It takes time and consistency, but the payoff in better rates, higher approval chances, and smoother processing is well worth the effort.

At AG Mortgage Bank, we work with applicants at every stage of their homeownership journey, including those who are still preparing their financial profile. Our mortgage advisers can review your current position, identify what needs to improve, and give you a clear roadmap to approval.

Ready to take the first step? Contact AG Mortgage Bank today to schedule a free pre-application consultation and find out exactly where you stand.

AG Mortgage Bank PLC is a licensed primary mortgage bank in Nigeria, regulated by the Central Bank of Nigeria (CBN). All lending decisions are subject to credit assessment and applicable terms and conditions.