Quick Answer
The ECB's September 10 rate hike — its second of 2026 — took the deposit rate to 2.50%, effective September 16, and Ireland's ~130,000 tracker mortgage holders felt it immediately: about +€15 per month per €100,000 borrowed (Irish Times, Sep 16, 2026). Combined with June's hike, tracker repayments are now up €24-28 per month per €100,000, while the big three banks decide whether to pass the increase to variable customers.
Last verified: Sep 16, 2026.
At a glance
- ECB deposit rate: 2.50% effective Sep 16 — second hike of 2026 (ECB, Sep 2026)
- Tracker impact: ~+€15/month per €100K borrowed (Irish Times, Sep 2026)
- Combined June + Sep: tracker repayments +€24-28/month per €100K
- Tracker loans: ~130,000 still outstanding in Ireland
- Big three banks: absorbed June's hike — September pass-through undecided
- Average Irish rate: ~3.4% — could hit 3.8-3.9% by Jan 2027
What the ECB did — and why
The September 10 decision lifted all three ECB rates. The deposit facility — the rate that matters for Irish trackers — rose to 2.50%, the main refinancing rate to 2.65% and the marginal lending rate to 2.90%, effective September 16. It is the second hike of the year after June (ECB, Sep 10, 2026).
The justification is persistence: eurozone inflation is running at 3.3%, and the ECB's staff projections show headline inflation at 3.0% in 2026, 2.5% in 2027 and 2.1% in 2028 — above the 2% target across the horizon — with core at 2.5%, 2.6% and 2.3%. Growth was revised up to 0.9% for 2026 and 1.4% for 2027. The bank describes itself as data-dependent and meeting-by-meeting, with no pre-commitment to further moves (ECB, Sep 2026).
The tracker maths
Trackers reprice automatically, and the arithmetic is unforgiving. Margaret Barrett of Mortgage Navigators estimates September's move at about €15 per month for every €100,000 borrowed. On a €250,000 tracker mortgage, that is roughly €37 more per month — €444 a year. Trevor Grant of Irish Mortgage Advisors calculates the combined June-plus-September damage at €24-28 per month per €100,000, with some clients now reporting €50-70 per month in total repayment increases (Irish Times, Sep 16, 2026).
Approximately 130,000 tracker loans remain outstanding, with margins over the ECB rate typically between 0.5% and 1.45% — averaging around 1.1%. For a decade those margins made trackers the cheapest mortgage in Ireland; now they transmit every Frankfurt decision within weeks. AIB, Bank of Ireland and PTSB have started posting letters notifying tracker customers of the change (Irish Times, Sep 16, 2026).
Will the banks pass it on to everyone else?
The variable-rate question is now the live one. The big three banks — AIB, Bank of Ireland and PTSB — chose not to pass June's hike to variable customers, leaving Irish mortgage rates below the eurozone average, a rare position historically. Bonkers.ie's Darragh Cassidy is not confident they will absorb a second hike, and is certain they would not absorb a third, with December the likely timing of the next ECB move (Irish Times, Sep 16, 2026).
If pass-through comes, the average Irish mortgage rate of about 3.4% could reach 3.8-3.9% by January 2027, per Barrett. The counterweight is the switching market: switch rates now go as low as 3%, and Avant Money's One Mortgage fixes the remaining term at 3.4% across 15-30 year terms with 10% annual overpayments, no moving-home fees and 1% cashback on 2026 drawdowns. Switching costs run €1,100-€2,000 in legal and valuation fees — recovered quickly at half a percentage point of rate saving. SYS Mortgages' Ralph Marsh's advice: do not wait until your fixed term expires to shop around (Irish Times, Sep 16, 2026).
| Borrower type | September impact | Outlook |
|---|---|---|
| Tracker (~130,000 loans) | +~€15/mo per €100K (Irish Times, Sep 2026) | Reprices automatically; more if ECB hikes again |
| Variable (~4.15% avg) | No automatic change | Big-three decision pending; December risk |
| Fixed (expiring) | None until rollover | Refix market ~3.4%; switch rates as low as 3% |
| Combined June+Sep tracker effect | +€24-28/mo per €100K | +€300-336/yr per €100K |
| €250K tracker example | +€37/mo | €444/yr |
What enterprise buyers should do next
Three actions for Irish mortgage holders and housing-market participants.
- Tracker holders: price the switch now. At +€24-28 per month per €100,000 already absorbed and December's ECB meeting live, the maths of fixing at 3.4% for the remaining term versus riding Frankfurt's tightening cycle deserves a spreadsheet this week.
- Variable holders: do not wait for the letter. The big three absorbed June but absorbing September is a different decision — moving to a switch rate near 3% before pass-through lands captures the full spread.
- Market watchers: track the December ECB meeting. Cassidy's framing — a third hike would definitely be passed on — makes December the decision point for the entire Irish variable-rate base (Irish Times, Sep 16, 2026).
What to watch next
Three datapoints settle the quarter. First, the big three banks' variable-rate announcements over the coming weeks — pass-through would take the average Irish rate toward 3.8%. Second, the ECB's December meeting, where money markets already price further tightening. Third, the switching volumes in October's mortgage approvals data, which will show whether borrowers act on the current sub-3.5% window before it closes (Irish Times, Sep 16, 2026).
Photo: Leimanbhradain, CC BY, via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/d/dd/Sign-1180532%2C_Docklands%2C_Dublin%2C_Ireland.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original)









