Mortgages

How to get a mortgage Approval in Principle in Ireland

Getting a mortgage Approval in Principle is a step closer to buying your new home or remortgaging. Here’s how to apply and what to do if you’re not approved.

What is a Mortgage Approval in Principle?

An Approval in Principle (AIP) is a letter from a lender indicating the amount they are willing to lend you, based on an initial assessment of your finances. An AIP does not guarantee you will get a mortgage.

Whether you’re at the start of your mortgage journey as a first-time buyer or moving house, a mortgage Approval in Principle is useful when:

  1. Buying a new property
  2. Remortgaging your home
  3. Building your own property

An Approval in Principle (AIP) is free and usually valid for six or 12 months.

Does having an AIP guarantee a mortgage?

No. You’ll still need to pass full affordability checks and property valuation when you make a formal mortgage application. However, an AIP means you’re very likely to be approved if your circumstances don’t change.

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Why do you need an Approval in Principle?

In Ireland, a Mortgage Approval in Principle (AIP) is not vital, but it’s recommended, especially for first-time buyers.

An Approval in Principle confirms how much you can borrow with a mortgage and provides you with other benefits. Here’s why an AIP can increase your chance of success:

It shows you’re a serious buyer

  • Estate agents and sellers see an AIP as proof that a lender is likely to approve your mortgage.
  • Many estate agents won’t accept your bid without one.
  • If you make an offer on a property, you’ll have a better chance of success.

Helps you set a realistic budget and saves time

  • An AIP tells you roughly how much you could borrow.
  • This helps you focus your property search on homes you can actually afford.
  • You won’t waste time looking at properties outside your borrowing capacity.
  • Reduces surprises when you submit a full mortgage application.

Useful when applying for government schemes

  • Schemes like the First Home Scheme or Help to Buy may require proof of mortgage eligibility, which an AIP can help provide.

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Are mortgage AIPs compulsory?

No. You can still make an offer on a property without an AIP. However, many estate agents prefer buyers with one, and some sellers may only consider offers from buyers who can show an AIP.

What to do if you don’t have one

If you don’t have an AIP, you must check your financial situation and prepare for a full mortgage application before you start house hunting.

  • Find out how much you can borrow by using a mortgage calculator.
  • Discover how much deposit you’ll need in our mortgage deposits guide.
  • Request a copy of your credit report on the Central Credit Register website for free to ensure that nothing shows up that a lender might question.

Are there different types of AIP?

There is really just one full, formal type of AIP which is unwritten by a lender and accepted by all estate agents. However, you may also come across:

  • Online pre-approval: These score your approval chances based on your income and expenditure and can be completed online in approx ten minutes. Most estate agents, but not all, may accept one.
  • Broker assessment: A broker document which indicates your affordability. Though they can be used as guidance while buying a home, it is not the same as full AIP.

How to get an Approval in Principle

The quickest way to apply is online directly with a lender or via a broker. Alternatively, you can submit your application over the phone or in a branch if you prefer.

  1. Check your credit report via the Central Credit Register
  2. Calculate your deposit and affordability using a mortgage calculator
  3. Compare mortgage deals or speak to a mortgage broker to find the best rates
  4. Submit your AIP application online or through a broker
  5. Start your property search

What documentation will you need?

You won’t have to produce all the documentation needed for a mortgage to get an AIP, but the mortgage company may need information about your:

  • Identity: Proof of identity & address, like a passport, driving license and utility bills
  • Income: Recent payslips, salary certification, Revenue summary
  • Outgoings: Credit and loan history, savings, mortgage and bank statements

How long does an AIP last?

An AIP typically lasts six or 12 months; however, if you haven’t found a property within that period and your circumstances remain unchanged, your AIP may be extended. This will be subject to the lender’s criteria and rules.

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Do lenders credit check you for an AIP?

Yes, the lender will run an eligibility check to ensure you can afford your mortgage loan and have a good credit history.

This includes a credit check that looks at your borrowing record and may require a ‘hard search’ recorded on your credit report.

What if you don’t pass the credit check?

Ask your lender why and request your credit report for free on the Central Credit Register website and if it contains something you disagree with, here are your rights.

Our guide to checking your credit record can help you to understand and improve your credit report.

Avoid reapplying for an approval in principle until the issues with your credit have been resolved.

What should you do next?

Not all lenders have the same lending criteria, so you could search for another lender who may approve you.

A mortgage broker (mortgage credit intermediary) can help you find lenders that are more likely to lend to you based on your circumstances.

If your credit history isn’t that good, our bad credit mortgages guide shares tips and advice on how to improve your chances of getting a mortgage.

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How to improve your chances of approval

To improve your chances of success or being offered the amount you need, you could:

  • Save for a higher deposit
  • Ensure you credit record is accurate and up to date
  • Clear any debts or reduce an outstanding loans
  • Make any loan and/or credit card repayments on time
  • Reduce your outgoings where possible

Our mortgage deposits guide shares some tips on ways to save and reduce your living costs.

If you’re not approved, what are your options?

If one lender doesn’t approve you, it doesn’t mean they all won’t, but it’s best to understand why before you try another one. If they haven’t supplied you with a reason, ask the lender for more information about why your application was rejected.

If you’re approved for less than you need

If your outgoings are high, for instance, you have a large loan with a long time to run before it’s paid off, this will affect how much you can afford to pay for your mortgage.

It could also be due to one of the following reasons:

  • Salary is too low
  • Credit rating is poor
  • Regular outgoings are already high

What’s the difference between an AIP and a full mortgage offer?

For an Approval in Principle, you’ll need to answer a few questions about your financial situation, and based on the information you give, the lender will tell you how much it may lend you. However, an AIP is not a legal document and does not entitle you to receive the mortgage amount set out in the AIP.

To secure a full mortgage offer, you must answer a more in-depth set of questions about yourself (and any other applicant), your finances and the property you would like to buy.

You’ll need to provide evidence of all your financial information, and the lender will conduct the necessary credit checks before issuing a formal underwritten credit approval and Letter of Offer.

How to get a full mortgage offer

To convert your AIP into a formal mortgage Letter of Offer, you must fill in a full mortgage application and answer a more detailed set of questions about yourself, your financial circumstances and the property you’re planning to buy.

You may need to produce various documents that further prove your:

  • Identity
  • Earnings
  • Employment type
  • Outgoings

When everything has been verified by the lender and all their requirements have been met, you’ll be issued with the Letter of Offer. This includes the full terms of the mortgage that you must check over with your solicitor and sign, usually within 30 days.

Once you have a full mortgage offer and you’ve found your dream home, you’re ready to make a move.

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Find a range of first time buyer and home mover mortgage deals in Ireland using our comparison.

Mortgage Approval in Principle FAQs

Does applying for an Approval in Principle affect my credit rating?

If you apply for an approval in principle from multiple lenders, they will each have to run a credit check - a hard search that shows on your credit report.

Having multiple credit checks appear on your credit report within a short period can negatively impact your credit rating. This is because other lenders can see these checks have been made and will assume you’re struggling to get credit.

If the credit check uses a soft search, it won’t show on your credit report or affect your credit score.

Can I get an AIP if I’m self-employed?

Yes. You’ll usually need to provide two to three years of audited accounts or tax returns, along with bank statements and proof of income stability.

Can I apply for an AIP with more than one lender?

Yes, but be cautious. Multiple hard credit checks in a short period can affect your credit score. Using a mortgage broker can help you compare options without multiple checks.

Warning: If you do not keep up your repayments you may lose your home. Warning: The cost of your monthly repayments may increase. Warning: You may have to pay charges if you pay off a fixed rate loan early. Warning: If you do not meet the repayments on your loan, your account will go into arrears. This may affect your credit rating, which may limit your ability to access credit in the future. Warning: The entire amount that you have borrowed will still be outstanding at the end of the interest-only period. The payment rates on this housing loan may be adjusted by the lender from time to time. (applies to variable rate loans only) Information provided and Interest rates quoted valid at 10/10/2025