The Central Bank’s mortgage rules cap borrowing at 3.5 times your gross income for most buyers. But banks can approve exceptions—up to 20% of their lending volume for second and subsequent buyers, and unlimited LTV exceptions for first-time buyers borrowing up to 90% of property value.
These exceptions let you borrow more than the standard limit, sometimes reaching 4× or even 4.5× your income. They’re not automatic, and lenders guard them carefully. This guide explains how exceptions work in practice, which banks approve them most readily, and what strengthens your application.
How Central Bank Mortgage Exceptions Work
The Central Bank introduced loan-to-income (LTI) limits in 2015 and revised them in 2023. The current rules:
- First-time buyers: Maximum 4× gross income
- Second and subsequent buyers: Maximum 3.5× gross income
- Exception allowance: Lenders can approve up to 20% of non-FTB mortgages above the 3.5× limit
- LTV exceptions: First-time buyers can access 90% LTV (instead of standard 80%) without using the income exception quota
The 20% exception quota applies only to income multiples for non-first-time buyers. Lenders track this quarterly and must stay within the Central Bank limit. Most major banks hit their 20% ceiling by Q2 or Q3 each year.
First-time buyers face a different calculation. While your income cap sits at 4× salary, you can also borrow up to 90% LTV (10% deposit) without burning an exception slot. This means an FTB buying a €400,000 home can borrow €360,000 if their income supports it—no exception needed despite the higher LTV.
Income Multiple Exceptions: Who Gets Them
Lenders award income exceptions based on affordability, not sympathy. They want borrowers who can clearly service higher debt without risk.
What strengthens an exception request:
- High disposable income: Earning €80,000+ with low fixed costs makes you attractive. Banks run stress tests at ECB rate plus 2%. If you pass comfortably, you’re a candidate
- Substantial deposit: Putting down 25%+ shows financial discipline and reduces lender risk. A €100,000 deposit on a €400,000 property carries more weight than scraping together 10%
- Clean credit history: No missed payments, low existing debt, no CCJ or bankruptcy history. Banks check ICB (Irish Credit Bureau) records—one late payment can kill an exception
- Stable employment: Three years in the same role or industry. Contract workers need longer track records. Self-employed borrowers need three years of rising accounts
- Age and mortgage term: Younger borrowers seeking 30-year terms get more leeway than someone needing a 15-year term at age 50. Monthly payments must stay manageable
- Property location: Dublin and Cork applications get more scrutiny than rural properties. Urban property values attract conservative lending
What hurts your chances:
- Recent credit issues within 24 months
- Multiple credit cards near their limits
- Car loans, personal loans, or PCP agreements eating into income
- Gaps in employment or frequent job changes
- Thin savings beyond the deposit (banks want 6 months’ reserves)
- Buying above market value based on surveyor’s report
LTV Exceptions for First-Time Buyers
First-time buyers have a separate exception route: borrowing up to 90% LTV instead of the standard 80%. This isn’t technically an “exception”—it’s a built-in Central Bank allowance for FTBs.
How it works:
You’re buying your first home for €350,000. As an FTB:
- Standard LTV: 80% = €280,000 loan (€70,000 deposit required)
- FTB allowance: 90% = €315,000 loan (€35,000 deposit required)
You save €35,000 on deposit requirements. The catch: your income must still support 4× salary limits. If you earn €75,000, your maximum loan is €300,000 regardless of LTV.
Most FTBs use the 90% allowance without needing an income exception. You only need an income exception if you want to borrow above 4× salary, which the Central Bank doesn’t permit for first-time buyers under current rules.
Which Lenders Grant the Most Exceptions
Banks differ sharply in their willingness to approve exceptions. Some use their full 20% quota by June; others hold back for strategic cases.
Exception approval patterns (based on 2024–2026 lending data):
| Lender | Exception Rate | Notes |
|---|---|---|
| AIB | 18–20% | Uses full quota; competitive on income multiples up to 4.2× for strong borrowers |
| Bank of Ireland | 17–19% | Slightly more conservative; prefers large deposits and high incomes |
| Permanent TSB | 15–17% | More restrictive; focuses on existing customers and movers |
| EBS (part of AIB) | 10–12% | Lower quota usage; stricter affordability tests |
| Avant Money | 8–10% | Limited exceptions; favours standard cases and switchers |
| ICS Mortgages | 5–8% | Very selective; mainly for professional couples with substantial equity |
AIB and Bank of Ireland dominate the exception market. They process higher volumes and have more room to approve outliers. Smaller lenders ration exceptions carefully because each one counts more heavily against their quota.
Timing matters. Apply in Q1 (January–March) when lenders haven’t exhausted their annual allowance. By September, most banks have allocated 15–18% of their quota and turn conservative. November and December see tighter restrictions as they protect their year-end compliance numbers.
How to Apply for a Mortgage Exception
You don’t tick a box marked “exception” on your mortgage application. Lenders automatically assess whether your case qualifies once you exceed standard limits.
Step-by-step process:
1. Calculate Your Maximum Borrowing
Use the standard formula first:
- First-time buyer: Gross income × 4
- Second-time buyer: Gross income × 3.5
If the property you want costs more than this allows, you need an exception.
Example: You’re a second-time buyer earning €90,000. Standard maximum: €315,000. You want to borrow €360,000 (4× income). You need a 0.5× exception.
2. Strengthen Your Application
Before applying:
- Clear any outstanding credit card balances
- Close unused credit cards (even zero-balance cards count as potential debt)
- Gather six months of bank statements showing consistent savings
- Obtain a mortgage protection quote (banks want proof you’re insurable)
- Get a salary certificate or three years of accounts if self-employed
- Check your ICB report for errors (request from icb.ie)
3. Choose Your Lender or Broker
You have two routes:
Direct application: Apply straight to AIB, BOI, or PTSB. Complete their online form or visit a branch. You’ll discuss exception eligibility during the initial assessment call. Works well if you have an existing banking relationship and straightforward income.
Mortgage broker: A broker knows which banks currently have exception quota available and which underwriters approve aggressive multiples. They package your application to highlight strengths. Broker fees run €1,500–€2,500 but they increase approval odds substantially.
Most successful exception applications go through brokers. They pre-screen your case, target the right lender, and resubmit if declined.
4. Submit Complete Documentation
Banks won’t consider exceptions if your paperwork is incomplete. Required documents:
- Three months’ payslips (six months if commission-heavy income)
- P60 or three years’ audited accounts
- Six months’ bank statements (current account, savings, any loan accounts)
- Credit card statements for last three months
- Proof of deposit source (bank statements showing savings accumulation)
- Signed contracts if buying new-build
- Property brochure or survey if available
- Photo ID and proof of address
5. Wait for Underwriting Decision
Standard mortgage applications take 2–3 weeks for approval in principle. Exception cases take 3–5 weeks because they require senior underwriter sign-off.
The bank will:
- Run stress tests at current ECB rate plus 2%
- Check your debt-to-income ratio stays below 35%
- Verify deposit legitimacy (no sudden large lodgements from undocumented sources)
- Compare property value against local comparables
- Review your employment stability and sector
If approved, you receive approval in principle valid for six months. If declined, ask why—some banks give feedback; others don’t. You can try another lender or reconsider your budget.
What Happens If You’re Declined
A declined exception isn’t the end. You have options:
Reapply with another lender: Banks assess differently. BOI might decline where AIB approves. Brokers know these patterns and redirect applications accordingly.
Increase your deposit: Dropping from 90% LTV to 80% or even 70% transforms your risk profile. Saves more or consider gifted deposits from parents (must be properly documented).
Improve your credit position: Clear outstanding debts, close credit cards, wait six months, reapply. Credit history repairs over time.
Add a co-borrower: Applying jointly with a partner or family member doubles your income. Joint applications succeed more often than solo exception requests.
Lower your asking price: Look at properties within standard borrowing limits. A €350,000 property might suit you better than stretching to €400,000 with uncertain approval.
Wait and save: Postpone purchase by 12 months. Increase your income through promotion or job change, save a larger deposit, reapply when you’re in stronger financial position.
Exception Rates vs Standard Rates
Lenders don’t penalise exception borrowers with higher interest rates. Your rate depends on LTV, not whether you used an exception.
September 2026 rate comparison:
| LTV Band | Fixed 3-Year | Fixed 5-Year | Variable |
|---|---|---|---|
| ≤50% | 3.10% | 3.25% | 3.75% |
| 51–80% | 3.35% | 3.50% | 4.00% |
| 81–90% | 3.65% | 3.85% | 4.30% |
Exception approval affects eligibility, not pricing. Once approved, you pay the same rate as any borrower in your LTV bracket.
This differs from pre-2015 lending when high LTI multiples sometimes triggered rate loadings. Current regulation prevents discriminatory pricing based on income multiple.
Common Misconceptions About Exceptions
“Exceptions are only for wealthy borrowers”
False. Banks grant exceptions to middle-income borrowers with strong affordability. A teacher couple earning €70,000 each can secure a 4× exception more easily than a €150,000 earner with heavy debt commitments.
“First-time buyers can’t get exceptions”
Partially true. FTBs can’t exceed 4× income regardless of circumstances. But they get automatic 90% LTV access, which non-FTBs don’t. The system balances differently for first-timers.
“Using an exception means you’re over-borrowing”
Not necessarily. Central Bank limits aim for systemic stability, not individual affordability. Many borrowers can comfortably service 4.5× income but face arbitrary regulatory caps. Exceptions provide flexibility where affordability justifies it.
“All banks have exceptions available year-round”
False. Most banks exhaust their quota by late summer. Timing your application matters as much as your financial profile.
“Brokers guarantee exception approval”
No broker can guarantee approval—that’s illegal under consumer protection rules. Good brokers increase your odds significantly through lender selection and application packaging, but ultimate decisions rest with bank underwriters.
Strategic Considerations
If you’re pursuing an exception, think long-term:
Can you service the debt if rates rise? ECB rates fell from 2024 peaks but could rise again. Stress-test your budget at 5.5–6% rates. If monthly payments at that level would strain you, reconsider borrowing the maximum.
Does the property justify the stretch? Overpaying for a property using an exception leaves you vulnerable if values correct. Make sure surveyor’s valuation supports your purchase price.
Are you locking into long-term financial pressure? Higher borrowing means larger monthly payments for 25–30 years. Consider how career changes, children, or illness might affect your ability to pay.
Would waiting improve your position? Sometimes the answer is patience. Another year of savings, a salary increase, or credit history improvement can make the difference between approval and decline—or between needing an exception and staying within standard limits.
The exception system exists for good reason: the 3.5× cap doesn’t fit every borrower’s circumstances. Used wisely, exceptions help buyers afford appropriate homes without excessive risk. Used poorly, they enable over-borrowing that creates financial stress.
Approach exceptions as a tool, not a target. If your income and deposit support higher borrowing without compromising your financial security, pursue the exception confidently. If you’re stretching to make numbers work, step back and reassess.
See also: Central Bank Mortgage Rules Ireland | How Much Can I Borrow? | First-Time Buyer Mortgages Ireland | Mortgage Approval in Principle Ireland | Mortgage Brokers in Ireland