Can You Negotiate a Mortgage in Principle?
You have a mortgage in principle, but the figure is lower than you hoped. Can you haggle it up? The short answer is that you cannot negotiate a mortgage in principle in the way you might negotiate a price, because it is a calculation, not an offer. The longer answer is that there are several practical ways to increase the amount a lender will give you. This guide explains both.
At a glance
- Negotiable?
- No, it is an affordability calculation
- Based on
- Your income, outgoings and credit
- Can you increase it?
- Yes, in several ways
- Best lever
- Clearing debt and shopping around
Key takeaways
- A mortgage in principle is not open to negotiation. It is an estimate of the maximum a lender will lend, based on set affordability rules.
- Different lenders calculate it differently, so shopping around can produce a higher figure with the same finances.
- You can increase the amount by reducing debts, evidencing more income, or improving your credit profile.
- A bigger figure is not always better. Borrow what is comfortable, not just the maximum you can get.
What is a mortgage in principle, and why is it not negotiable?
A mortgage in principle (also called a decision or agreement in principle) is an indication from a lender of roughly how much they would be willing to lend you. It is worked out from your income, your regular outgoings, your existing debts and a credit check, run through the lender's affordability model.
Because it is the output of a calculation rather than a bargaining position, there is nothing to haggle over. The lender is not holding back a higher number they might release if you push. What you can do is change the inputs, or find a lender whose sums add up more generously.
How the amount is worked out
Most lenders start from an income multiple, commonly around 4 to 4.5 times your annual income, then stress-test the payments against your outgoings and any debts. Two applicants' incomes are usually combined. Our affordability calculator gives you a feel for the figure before you apply.
The key point is that outgoings and debts pull the number down, while income pushes it up. That is where your influence lies.
How to increase your mortgage in principle amount
If the figure is too low, these are the levers that actually move it:
- Clear or reduce debts. Loan and credit card balances reduce how much you can borrow. Paying them down, or clearing a card entirely, can lift the figure noticeably. Our credit card payoff calculator shows how quickly you could clear a balance.
- Evidence all of your income. Bonuses, overtime, commission and freelance earnings are treated differently by different lenders. Make sure yours are documented, as some lenders count more of them than others.
- Improve your credit profile. A cleaner credit file can unlock better terms. It is worth checking your report before you apply so there are no surprises.
- Shop around, or use a broker. This is often the biggest lever. Because lenders assess income and outgoings differently, one may offer meaningfully more than another for identical finances. A whole-of-market broker can find the lender whose criteria suit you.
- Cut committed outgoings. Reducing regular commitments, from subscriptions to a car finance balance, can free up affordability.
Should you always aim for the maximum?
No. A mortgage in principle tells you the ceiling, not the sensible amount. Borrowing to the very top leaves little room if rates rise or your circumstances change. It is usually wiser to borrow an amount whose monthly payment you would be comfortable with even if things got tighter, rather than stretching to the maximum on offer.
Remember too that a mortgage in principle is not a guarantee. The full application still has to pass underwriting and a property valuation, so treat the figure as a strong indication rather than money in the bank. For more on that, see does a mortgage in principle mean you will be accepted.
Frequently asked questions
Can I ask a lender to increase my mortgage in principle? You cannot negotiate it directly, but you can ask them to reassess if your circumstances change, for example after clearing a debt or a pay rise. It may then go to an underwriter for an individual look.
Does getting a mortgage in principle affect my credit score? Some use a soft check that leaves no mark, others a hard check that does. Ask before you apply if you are worried about multiple searches.
Will different lenders offer different amounts? Yes, often significantly, because each uses its own affordability rules. This is why shopping around, or using a broker, is the most effective way to borrow more.
Want a sense of the number before you apply? Try the mortgage affordability calculator, and if debts are holding your figure down, see how fast you could clear them with the credit card payoff calculator.
