One of the most common mistakes couples make is deciding on a wedding without first agreeing on a realistic budget. Money stress is the leading cause of arguments during wedding planning — and almost all of it is avoidable with good preparation.

This guide gives you a realistic breakdown of what weddings cost in Ireland and the UK in 2025, what to prioritise, and how to keep control of your spending throughout planning.

Average Wedding Costs in Ireland (2025)

Based on industry data, the average Irish wedding for 80–120 guests now costs between €22,000 and €38,000. The wide range reflects venue choice more than anything else — a five-star country house hotel will cost significantly more than a dry-hire venue or a destination-style celebration.

Typical Cost Breakdown for an Irish Wedding (100 guests)

Average Wedding Costs in the UK (2025)

UK weddings average around £20,000–£30,000 for a similar guest count. London and the South East are significantly more expensive than the Midlands, North of England, Wales, or Scotland.

Typical UK Cost Breakdown (100 guests)

Where to Save

Not every line item deserves the same investment. Some areas are much better candidates for cost reduction than others:

What Not to Skimp On

Some parts of your wedding are worth spending on, because the impact lasts long after the day:

How to Track Your Budget Properly

A budget that lives in your head is not a budget — it is a guess. You need a system that tracks:

Tracking your budget properly throughout planning means no nasty surprises in the final weeks, and helps you make informed decisions when unexpected costs come up (and they always do).

Build in a Contingency

Whatever your total budget, hold back 5–10% as a contingency fund. Unexpected costs are the rule, not the exception — a supplier drops out, a dress alteration is more expensive than expected, or you decide last minute to add a photo booth. Having a buffer means these situations do not become crises.

Frequently Asked Questions

What is the average cost of a wedding in Ireland in 2025?
The average Irish wedding for 80–120 guests costs between €22,000 and €38,000 in 2025. Venue and catering typically represent 40–50% of this total. Costs vary significantly depending on venue type, guest count, and location.
What is the average cost of a wedding in the UK in 2025?
UK weddings average around £20,000–£30,000 for a similar guest count in 2025. London and the South East are 30–50% more expensive than the national average, while Scotland and Wales are typically 15–25% below it.
What should you not skimp on in your wedding budget?
Photography is the area where cutting costs most often leads to regret — your photos are the lasting record of the day. Music also significantly affects the atmosphere of your reception. Food quality is remembered by guests long after the wedding.
How much contingency should you build into a wedding budget?
Hold back 5–10% of your total budget as a contingency fund. Unexpected costs always arise during planning — a supplier drops out, alterations cost more than expected, or a last-minute addition comes up. Having a buffer prevents these from becoming crises.

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