Buying a home should be an exciting experience, but mortgage applications don't always move as quickly as expected. While some delays are outside your control, many are caused by simple issues that could easily have been avoided.

Whether you're a first-time buyer, moving home or remortgaging, being prepared can help keep your application on track. Here are five common mistakes that can delay mortgage approval – and what you can do to avoid them.

1. Changing Jobs Before Your Mortgage Completes

It can be tempting to accept a new job opportunity, but changing employment during a mortgage application can cause delays. Lenders will often need to reassess your affordability, especially if you've moved to a new employer, become self-employed or have a probationary period.

How to avoid it:

If possible, wait until after your mortgage has completed before making any major career changes. If a job move is unavoidable, let your mortgage adviser know as soon as possible so they can check how it may affect your application.

2. Taking on New Credit

Buying furniture, a new car or applying for additional credit before you move might seem logical, but new borrowing can affect your credit score and change your affordability 
calculations.

Even interest-free finance or "buy now, pay later" agreements can be taken into account by lenders.

How to avoid it:

Try to avoid applying for any new credit until your mortgage has completed. Keeping your financial position stable gives lenders confidence and reduces the likelihood of further checks being required.

3. Not Having the Right Documents Ready

One of the biggest causes of delays is waiting for paperwork. Missing bank statements, payslips, proof of deposit or identification can all slow the process down.

For self-employed applicants, missing tax documents or accounts can create additional delays.

How to avoid it:

Gather your documents before you apply. Your adviser will let you know exactly what's required, and having everything ready means your application can be submitted quickly and any lender queries answered promptly.

4. Large or Unexplained Transactions

Lenders are required to understand where your deposit has come from and may question large payments into or out of your bank account.

Unexpected transactions don't necessarily mean your application will be declined, but they often result in additional questions and requests for evidence.

How to avoid it:

Keep clear records of gifted deposits, savings transfers or any significant transactions. If you've received money from a family member or sold an asset, your adviser can explain what evidence the lender is likely to need.

5. Assuming Everything Will Happen Automatically

Many people think that once they've received a mortgage offer, there's nothing more to do. However, lenders may carry out additional checks before completion, and delays can occur if requests for information aren't answered promptly.

Communication between solicitors, estate agents, surveyors and lenders is also crucial to keeping everything moving.

How to avoid it:

Respond to requests for information as quickly as possible and keep your adviser informed if anything changes. A good mortgage adviser will liaise with everyone involved, helping to resolve issues before they become bigger problems.

A Little Preparation Goes a Long Way

Most mortgage applications proceed smoothly, particularly when they're well prepared from the outset. By avoiding these common mistakes, you can reduce unnecessary delays and improve your chances of a straightforward approval process.

Every lender has slightly different criteria, which is why professional advice can make such a difference. An experienced mortgage adviser can identify potential issues early, recommend the most suitable lender for your circumstances and guide you through each stage of the application.

If you're thinking about buying your first home, moving house or remortgaging, getting advice early can help ensure your mortgage application progresses as smoothly as possible.

Although every effort has been made to ensure that the information provided in this article is accurate and correct, the information provided does not constitute any form of financial advice. We recommend that you speak to a mortgage adviser before making any financial decisions.