Valuation guide · Updated November 2026
Northern Irish number plates are the most affordable way to own a dateless registration, but that doesn't mean they're all cheap. Most sell for a few hundred to a couple of thousand pounds, short NI plates with the number 1 can make five figures, and the most expensive plate with an Irish letter code, IG 1, sold for £287,792. This guide explains what NI plates are, what they really sell for, and what makes one worth more than another.
The basics
What Is a Northern Irish Number Plate?
A Northern Irish number plate, often called an Irish number plate or NI plate, is a registration issued in Northern Ireland. Every one contains the letter I or the letter Z, and none of them shows the age of the vehicle. That makes them dateless, so they can go on any UK vehicle, old or new, except a Q-plated one.
Northern Irish plates are full UK registrations. Since 2014, they have been administered by the DVLA in the same way as plates from England, Scotland and Wales, and they can be transferred onto any UK-registered vehicle.
Why Do Northern Irish Plates Have an I or a Z?
When vehicle registration began in 1903, letter codes containing I were set aside for Ireland, and codes containing Z were later added as more were needed. Mainland Great Britain has never used I or Z in its area codes, which is why an I or a Z instantly marks a plate as Irish.
How to Read a Northern Irish Number Plate
Most Northern Irish plates follow a simple pattern: up to three letters followed by up to four numbers, such as ABZ 1234.
- The last two letters are the area code, and one of them is always I or Z. AZ, for example, is a Belfast code.
- The first letter, if there is one, is a serial letter, used once an area code had run through its numbers.
- The number runs from 1 to 9999. The shorter and lower it is, the more valuable the plate tends to be.
Because there is no year identifier anywhere on the plate, nobody can tell how old a car is from an NI registration.
Values
How Much Are Northern Irish Number Plates Worth?
As a guide, most Northern Irish plates are worth £150 to £2,000, while the best short combinations sell for £5,000 to £25,000+. Where a plate sits depends mostly on how many characters it has, what it spells and whether it has a low number.
Northern Irish Plate Values by Length
To show what NI plates really sell for, our team analysed the results of a recent 2,000-lot number plate auction. 122 Northern Irish plates sold, with winning bids from £300 to £12,570. The shorter the plate, the higher the price:
| Characters on the plate | NI plates sold | Median winning bid | Highest winning bid | Example |
|---|---|---|---|---|
| 4 | 10 | £12,570 | FMZ 2 | |
| 5 | 60 | £4,710 | AFZ 14 | |
| 6 | 40 | £3,510 | SRZ 100 | |
| 7 | 12 | £1,640 | CSZ 4321 |
A 4 character NI plate typically sold for almost six times as much as a 7 character one. Across all 122 plates, the median winning bid was £1,275.
Winning bids exclude buyer's fees and VAT. Unsold lots are not included.
"People often assume Irish plates are all worth a couple of hundred pounds, and plenty are. But a short NI plate with a low number or a clean set of initials is a different thing entirely. We regularly see owners surprised by what theirs is worth, so it's always worth getting a proper valuation before you sell."
Typical Values for Common NI Plate Styles
| Plate style | Example | Typical winning bid |
|---|---|---|
| Three letters and a 1 | ABZ 1 | £10,000 to £18,000 16 sold |
| Three letters and a single digit | ABZ 7 | £3,000 to £5,000 155 sold |
| Three letters spelling a name | DAZ 12 | £1,000 to £5,000 32 sold |
| Three letters and a repeated number | ABZ 333 | £900 to £1,800 363 sold |
| Three letters and four numbers | ABZ 4321 | £450 to £1,000 137 sold |
Typical winning bid is the middle half of winning bids for each style at DVLA auctions from January 2025 to October 2026, excluding fees and VAT. Plates sold privately or through dealers can fetch more or less.
What adds value
Which Northern Irish Plates Are Worth the Most?
Short NI Plates
Length matters more than anything. Every character you remove makes a plate rarer, and in our auction analysis the 4 character NI plates sold for a median of £3,650, against £625 for 7 character plates.
NI Plates With the Number 1
The number 1 carries a premium on every type of plate, and NI plates are no exception. The most expensive Northern Irish plate in our auction analysis was YUI 1, which made £12,570, more than double any other NI plate in the sale.
NI Plates That Spell Names and Words
Because Northern Irish plates use I and Z, some spell names that mainland plates can't. WIL 39 (Will or Wilson) made £4,010 in our auction analysis, and plates such as DAZ or LIZ combinations are popular for the same reason. The more clearly a plate reads with correct spacing, the more it's worth.
Repeated and Lucky Numbers
Numbers such as 333, 100 or 7 attract strong interest. MRZ 333 made £2,610 and SRZ 100 made £3,510, well above the median for 6 character NI plates.
Sold prices
The Most Valuable Irish-Style Plates Sold
| Plate | Sold for | When | Notes |
|---|---|---|---|
| IG 1 | £287,792 | July 2019 | DVLA auction, including fees. The most expensive plate with an Irish letter code |
| YUI 1 | £12,570 | Recent auction | Winning bid, excluding fees |
| YIG 7 | £6,272 | September 2026 | DVLA auction, including fees |
| ISZ 5 | £5,840 | Recent auction | Winning bid, excluding fees |
| XIG 8 | £5,010 | Recent auction | Winning bid, excluding fees |
| AVI 15 | £4,710 | Recent auction | Winning bid, excluding fees |
| FMZ 2 | £4,410 | Recent auction | Winning bid, excluding fees |
| RGZ 7 | £4,060 | Recent auction | Winning bid, excluding fees |
IG 1 is in a league of its own. With just three characters and the number 1, it's far shorter than a typical NI plate, which shows how much value a short Irish-style plate can carry.
Lower values
Cheap Irish Number Plates: What Are They Worth?
Not every Northern Irish plate is valuable. Longer plates with three letters and four random numbers are plentiful, and they're often sold new for under £200. The cheapest NI plate in our auction analysis, CSZ 4321, made £300.
That has two consequences if you own one:
- A cheap NI plate may be worth less than you paid. Dealer prices include their margin and DVLA fees, so the resale value of a long, random NI plate is often lower than its original price.
- Some "cheap" plates are worth more than they look. A plate that happens to spell a name, include a repeated number or read as initials can be worth far more than a random combination.
A free valuation will tell you which side of the line your plate falls on.
Why buyers want them
Why People Buy Northern Irish Plates
The Cheapest Way to Hide Your Car's Age
This is the biggest reason people buy NI plates. Because they're dateless, nobody can tell the age of your car from the registration. Mainland dateless plates typically start at around £1,000, while a Northern Irish plate can do the same job for a few hundred pounds.
Personalised NI Plates on a Budget
Northern Irish plates can also carry initials or short names at a lower price than other dateless formats. A three-letter NI plate can work as a set of initials, as long as one of the letters is an I or a Z.
The rules
Are Northern Irish Plates Legal in the UK?
Yes. Northern Irish plates are UK registrations administered by the DVLA, so they're fully legal on cars in England, Scotland and Wales. You transfer one onto a vehicle in exactly the same way as any other private plate, and it must be displayed with the standard UK font and spacing.
What About Plates From the Republic of Ireland?
Plates from the Republic of Ireland are different. They are not UK registrations and can't be transferred onto a UK vehicle. A small number of older Republic plates were transferred into the UK system before the rules changed in the 1980s, and those can still be bought and sold, but new transfers are not allowed.
Selling
Selling Your Northern Irish Number Plate
What Affects the Price You'll Get
- Length: shorter NI plates are rarer and sell for more.
- The number: a 1, a low number or a repeated number adds value.
- What it spells: names, initials and words attract more buyers.
- Demand: NI plates are plentiful, so a plate needs something that makes it stand out to sell well.
How to Sell an NI Plate
Get a valuation so you know what your plate is realistically worth.
Find your paperwork: your V5C logbook, or a V778 retention certificate or V750 certificate of entitlement if the plate isn't on a car.
Choose how to sell: privately, through a specialist or at auction.
Complete the DVLA transfer once a buyer is found.
"Northern Irish plates are a busy market, and that's exactly why pricing matters. There are thousands of NI plates for sale at any time, so a plate needs to be priced right and put in front of the buyers it actually suits. Get that right and the good ones sell quickly."
Your plate
Get Your Northern Irish Plate Valued
Whether your plate is a short NI number 1 or a longer combination you bought to hide your car's age, our specialists will tell you what it's really worth.
You can also read more about how much your number plate is worth.
- Tell us your registration and we'll send you a free, no-obligation valuation, usually the same day.
- If you decide to sell, we'll find the buyer, handle the DVLA transfer and arrange secure payment.
FAQs
Northern Irish Number Plate FAQs
How much is a Northern Irish number plate worth?
Most Northern Irish plates are worth £150 to £2,000. Short plates with a low number or a clear name can be worth £5,000 to £25,000+. In a recent 2,000-lot auction, the median winning bid for an NI plate was £1,275.
How do Northern Irish number plates work?
They use up to three letters followed by up to four numbers. The last two letters are an area code containing an I or a Z, and there's no year identifier, so the plate doesn't show the age of the vehicle.
Why do Northern Irish number plates end in Z?
Letter codes containing I and Z were reserved for Ireland when registration began in 1903. Mainland Great Britain never used them in its area codes, so the I or Z marks a plate as Northern Irish.
Are Northern Irish plates dateless?
Yes. Northern Irish plates have no year identifier, so they can go on a vehicle of any age.
Can I put a Northern Irish plate on any car?
Almost any. NI plates can go on any UK-registered vehicle, because they can't make it look newer than it is. The only exception is Q-plated vehicles, which can't take a private registration.
Are Irish number plates worth anything?
Yes, although values vary widely. Long, random NI plates are often worth a few hundred pounds, while short plates, names and low numbers can be worth thousands. A free valuation is the quickest way to find out.
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