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Wedding Budgets: Split the Total, Then Guard It

Family · 6 min read · Last updated September 2026

Quick answer: A workable wedding budget is a total divided into category shares before booking anything. On a 500,000 budget, a typical split puts 200,000 (40%) into venue-and-catering, 125,000 (25%) into attire-and-jewellery, and so on — and the single lever that moves every category is the guest count.

A worked category split

CategoryShareOn 500,000
Venue + catering40%200,000
Attire + jewellery25%125,000
Photography + media10%50,000
Decor + flowers8%40,000
Contingency buffer7%35,000
Everything else10%50,000

Shares vary by culture and city — the point is committing to shares first, so each vendor negotiation happens inside a fixed envelope instead of a blank check.

The guest-count lever

Per-plate catering plus per-guest seating, favors and space requirements mean venue costs scale nearly linearly with the guest list: 40% of budget at 150 guests is a different restaurant than the same 40% at 300. Deciding the list before touring venues is the highest-leverage planning act in the whole process.

The buffer is not optional

Final wedding bills typically exceed intentions by 5–15% (guest count creep, add-ons discovered mid-planning). The 7% line above absorbs that. Track committed spend against each envelope as you book — the Wedding Budget Planner computes the splits and tracks totals; the Family Budget tool handles the months-after reality.

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Frequently asked questions

How do I split a wedding budget?

Fix the total, assign percentage shares per category before booking, and hold a buffer. A common starting split: 40% venue/catering, 25% attire/jewellery, 10% photography, 8% decor, 7% contingency, 10% everything else.

What percentage should go to venue and catering?

Typically the largest single share — around 40% — because per-guest costs multiply across the whole list. Cultural and city norms vary; the share matters more as a commitment device than as a universal number.

Why do wedding budgets always overrun?

Guest-count creep, mid-planning add-ons and optimism about "small" categories. Planning a 7% buffer and tracking committed spend against envelopes is the practical defense.

How does guest count affect the budget?

Nearly linearly for catering, seating, favors and space. Halving the list frees roughly half the venue-and-catering envelope — which is why deciding the list before touring venues is the highest-leverage step.