Wedding budget: how to set it together and track it

Set the ceiling: a three-line formula

Average wedding costs come from industry surveys of volunteer couples. They tell you which lines are heavy; they don’t tell you what you can afford. Start from your own numbers.

Ceiling = savings already set aside for the wedding + (monthly saving × months left) + confirmed contributions

Three rules keep the number honest:

• Leave your emergency fund out. It’s there for life’s surprises, not the caterer. If you don’t have one yet, build that first: see our emergency fund guide.
• Use a monthly amount you already manage. Look at what you actually put aside over the last three months, not what you’d like to.
• Count only confirmed money. A vague “we’ll help” from an aunt isn’t a budget line. If it comes, it’s a bonus.

Example. Priya and Tom, in Manchester, are getting married in 14 months. They have £5,000 set aside, save £500 a month between them, and their parents have confirmed £4,000 in total.

£5,000 + (£500 × 14) + £4,000 = £16,000.

They keep a buffer of at least 5%, so £800. That leaves £15,200 to plan with.

Rank the lines together, before the first quote

Wedding budgets rarely fail for lack of money. They fail because every line feels essential at the moment you sign for it. A 20-minute exercise heads off half the arguments:

1. Each of you writes the list of lines alone and circles your top three.
2. Compare. Lines you both circled get the most comfortable budget.
3. Lines only one of you circled: talk it through and agree a figure.
4. Lines nobody circled get the simple version: seasonal flowers, digital invitations, no videographer.

For Priya and Tom, food and music are shared priorities; photography matters a lot to Priya and not at all to Tom. They set a reasonable photo budget rather than arguing between everything and nothing.

From fixed costs to a guest count

Once the ceiling is set, split the lines in two.

• Fixed lines, which barely change with the number of guests: venue hire, photographer, attire, music, flowers, rings, stationery.
• Per-guest lines, which multiply: food, drinks, sometimes chair and tableware hire.

Priya and Tom’s numbers, from real quotes:

That leaves £15,200 − £9,300 = £5,900 for food. Their caterer charges £75 a head including drinks. £5,900 ÷ £75 = 78.7, so the budget covers 78 guests (78 × £75 = £5,850).

This turns a vague conversation (“should we invite work friends?”) into a concrete one. At 100 guests, food would cost £7,500, which is £1,650 more. To invite them, they’d need to find £1,650 or take it from another line.

The lines people forget

Everyone knows the big lines. The small ones are what push a budget over. Before signing, ask each supplier what is not included, and add a line for:

• supplier meals (photographer, DJ) if you have to feed them;
• corkage if you bring your own drinks;
• overtime for the venue, DJ or photographer past the agreed time;
• hire of tableware, linen or furniture the venue doesn’t provide;
• transport for the two of you, and sometimes for guests;
• the day after: brunch, clean-up, returning hired items;
• preparation: hair and make-up trials, alterations.

Keep the honeymoon as a separate savings goal, so it doesn’t quietly eat the buffer.

The payment calendar: where budgets break

A budget can add up on paper and still fail on cash flow. Suppliers usually take a deposit when you sign and the balance shortly before or after the day. So the big amounts pile up at the end, just when your savings are still filling up.

Here is Priya and Tom’s calendar, assuming 30% deposits (check each contract):

The final month’s balances are £8,715 out of £15,150, or 57.5% of the spending. One month out, Priya and Tom will have put aside £5,000 + £500 × 13 + £4,000 = £15,500 and already paid £6,435. That leaves £9,065, enough for the balances with only £350 to spare. The buffer only builds back with the last monthly saving.

The lesson: ask every supplier for the exact due date of the balance before you sign, and check that the money will be there on that date. If it won’t, negotiate a payment plan or a balance after the day.

The fill-in table

Copy this into a spreadsheet or your app. One row per line, updated the day anything is signed or paid.

The “Who pays” column matters. In Hitched’s survey, 61% of couples received money from family towards the day. When a relative pays for a specific line, write it down: it avoids misunderstandings and makes thank-you notes precise.

Keep it as a team, without weekly budget meetings

One budget, visible to both of you, and one rule: every signed quote and every payment goes in the same day. No “I’ll tell you tonight”. In Binome360, a shared assistant for the two of you lets either partner log from their own phone, and balance reminders reach you both.

Binome360 doesn’t connect to your bank and doesn’t pay anyone: it keeps the record and reminds you of the dates.

When the budget goes over

If a quote breaks the ceiling, work through this order:

1. The guest count, because it moves several lines at once.
2. Lines neither of you circled in the priorities exercise.
3. The date: a weekday or off-season date; ask for prices.
4. The timeline: pushing the date back a few months adds that many monthly savings.

Borrowing for the day is a heavy decision: you keep paying long after the last guest leaves. If you’re considering it, compare the total cost of credit and talk to an adviser; in the UK, MoneyHelper offers free, impartial guidance. For how to share money after the wedding, our guide to couples budgets compares the three ways to split costs.

Frequently asked questions

How much should we budget for a wedding?

There’s no right figure. Hitched’s 2026 report puts the average UK wedding at £21,990 for 2025 weddings; our wedding planning checklist has US figures too. Your own budget should start from what you can pay: savings set aside, monthly saving times months left, and confirmed family money.

How do you split a wedding budget between lines?

Take off a 5% buffer first. Price the fixed lines from quotes. What remains goes to food and drink, and sets the guest count. In our example, catering is about 37% of the total.

Who pays for a wedding?

There’s no rule. Many couples pay most of it themselves, with help from family. What matters is recording who pays for what, and counting only money that’s confirmed.

How much should we save each month for our wedding?

Divide what’s missing by the months left. To find £7,000 in 14 months, you need £500 a month. Then check that the money will be there on each balance due date, not just on the wedding day.

In short

A solid wedding budget is built backwards: first what you can pay, then the fixed lines, then the guest count. The balance calendar matters as much as the total. First action: sit down together, work out your ceiling (savings + monthly saving × months + confirmed contributions) and create a shared savings goal for that amount.

Sources

• Hitched, 2026 wedding cost report, via The Knot Worldwide press release “The average cost of a wedding in 2026? Around £21,990, according to Hitched” (2,020 couples married in 2025; 56% overspent, 32% on budget, 6% under; 61% received family money): theknotww.com.
• MoneyHelper (UK Money and Pensions Service), free and impartial money guidance: moneyhelper.org.uk.
• Binome360 calculations for the Priya and Tom example (ceiling, fixed lines, guest count, payment calendar), September 2026.

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