AIP vs IPA: Is There a Difference in a Home Loan

AIP and IPA mean the same thing. Different banks use different labels for the same conditional assessment of how much they might lend you, based on your income, debts and credit profile, before you have chosen a specific property. Neither is a firm loan offer, and both expire after a set period.

Money: what the letter actually tells you

When you apply for an AIP or an IPA, the bank runs your income, your existing debts, your age and your credit bureau record through its Total Debt Servicing Ratio and Mortgage Servicing Ratio checks and returns an indicative loan quantum, an indicative interest rate package, and a tenure. That number is a ceiling based on your financial profile alone. It has nothing to do with the specific unit you eventually buy, because at this stage you usually have not chosen one yet.

Some banks print "Approval in Principle" on the letter. Others print "In Principle Approval." A few internal teams just call it a pre qualification letter. The content and the purpose are the same across all of them, so do not assume a bank offering an "IPA" is doing something different from one offering an "AIP." For a fuller walkthrough of how the application itself works, see our guide to the AIP process.

What it does not guarantee

The letter is not a commitment to lend. Three things can still move the number after you receive it. First, the bank has not valued any actual property yet, and your final loan is capped at the lower of the purchase price or the bank's valuation of that specific unit, not your AIP or IPA quantum. Second, your own financial position can change: a new car loan, a job change, or a fresh credit card balance between the letter and your actual application can shrink what you qualify for. Third, a bank's internal credit policies can tighten between when you receive the letter and when you formally apply, especially if there has been a change in interest rates or lending rules in between.

Timing: how long it stays valid

Validity periods are set by each bank rather than standardised across the industry, and they commonly run for a limited window, often around 30 days, though this varies by lender and should always be confirmed on your actual letter. If your house hunt runs longer than that window, most banks will ask you to refresh the assessment with updated payslips and a fresh credit check before it can be relied on again.

If you are buying an HDB resale flat rather than a private property, the document you need first is not an AIP or an IPA at all. It is the HDB Flat Eligibility letter, which HDB itself issues and which is compulsory before you can even receive an option to purchase on a resale flat. Our HFE letter guide covers that separate process in full.

What changes at the Letter of Offer

Once you have found a specific unit and the bank has completed a proper valuation, the AIP or IPA is replaced by a formal Letter of Offer. This is the actual loan contract: it fixes your loan quantum against the lower of price or valuation, sets out the real interest rate package you are agreeing to, states the tenure, and lists the conditions you must meet before drawdown. Unlike the earlier letter, signing the Letter of Offer is a binding step, and this is the document your lawyer will refer to when preparing the completion.

If the valuation comes in below the agreed purchase price, the loan quantum drops with it, and you are expected to make up the difference in cash. This gap is one of the most common surprises buyers hit late in a purchase, which is exactly why an early, honest AIP or IPA number matters more than the headline figure a banker quotes you informally. Our condo buying timeline guide shows where valuation and the Letter of Offer sit against the rest of the purchase.

Money: why get it before the OTP, not after

The option period on a private property OTP typically runs a short number of weeks, and that clock does not stop for financing surprises. If you exercise an OTP without knowing your realistic borrowing ceiling, you risk losing your deposit if the bank later declines to lend you enough, or you scramble under time pressure to source a shortfall. Getting your AIP or IPA sorted before you seriously view units means you shop within a number you already know is achievable, and you walk into the OTP exercise period with financing as a solved problem rather than an open question.

Money: it is worth checking more than one bank

Because each bank applies its own internal credit policies on top of the shared TDSR and MSR framework, two banks can return noticeably different quantums or rate packages for the exact same income and debt profile, even though both letters look identical on the surface. It costs nothing to apply for an AIP or an IPA from more than one bank before you commit, and comparing the actual letters side by side, not just the headline rate quoted over the phone, is the only way to know which offer genuinely fits your situation. A mortgage broker can run this comparison for you if you would rather not approach each bank separately.

Frequently Asked Questions

Is an IPA the same as an AIP?

Yes. AIP and IPA are two different labels banks use for the same conditional assessment of how much you might be able to borrow, based on your income, debts and credit profile, before you have chosen a specific property. Neither is a binding loan offer.

Can my loan amount change after I get an AIP or IPA?

Yes. The final loan is capped at the lower of the purchase price or the bank's valuation of the actual unit, and it can also change if your financial position shifts, or if the bank's lending policies move between the letter and your formal application. Treat the AIP or IPA number as a ceiling, not a confirmed amount.

How long before I sign an OTP should I get an AIP or IPA?

Apply before you start seriously viewing units, ideally close to when you plan to view, since most letters stay valid for only a limited window, often around 30 days depending on the bank. This way your budget is confirmed before you commit to an option to purchase, not after.