Your First Budget: The 15-Minute Version

Most budgeting advice assumes you have a free Sunday afternoon and a love of spreadsheets. Realistically, most people don't. Here's a version that fits inside a coffee break.

Start with what actually left your account last month

Skip the projections and wishful thinking. Open your bank app and look at the last 30 days of transactions. Group them into four buckets:

• Fixed costs — rent, subscriptions, phone bill, anything that's the same every month
• Food — groceries and eating out combined
• Everything else — the category that quietly eats more than people expect
• Savings — even if it's currently £0

Most people are surprised by exactly one of these numbers. Usually it's "everything else."

Pick one number to change, not five

The instinct is to overhaul everything at once — cut coffee, cancel subscriptions, meal prep every day, never eat out. That plan lasts about nine days.

Instead, pick the single biggest "everything else" expense and set one realistic limit for next month. Not zero. A number you can actually hit.

Automate the boring part

Set up a standing order that moves money to savings the day you get paid, before you see it in your main account. Whatever's left is what you have to spend — no mental math required for the rest of the month.

Revisit in 30 days, not every day

Checking your budget daily is a good way to stop checking it at all. Once a month is enough to see if the plan's working and adjust the one number you changed.