Glossary

    UK money jargon, decoded

    Plain-English definitions of every UK personal finance term you're likely to bump into. No fluff, no patronising tone.

    APR (Annual Percentage Rate)
    The total yearly cost of borrowing on a credit card, loan or overdraft, expressed as a percentage. Includes interest plus standard fees.
    Bank holiday
    A public holiday in the UK when banks are closed. Affects when payments clear and when bills get taken.
    Budget
    A plan for what you'll do with your money over a set period, usually a month. A working budget tells you what's safe to spend, not just what you spent.
    Carer's Allowance
    A UK benefit for people who care for someone at least 35 hours a week. Worth £81.90/week as of 2025.
    Cashflow
    The movement of money in and out of your accounts. Positive cashflow means more comes in than goes out.
    Child Benefit
    A UK payment for parents and guardians of children under 16 (or under 20 in approved education). Currently £25.60/week for the eldest child.
    Council tax
    A monthly charge collected by local councils to pay for services like rubbish, schools and roads. Based on your property's valuation band.
    Credit score
    A number lenders use to decide whether to lend to you. Higher is better. UK scores come from Experian, Equifax and TransUnion.
    Direct debit
    An automatic payment you authorise a company to take from your account on a set date. The amount can vary.
    Emergency fund
    Money set aside for unexpected costs. UK guidance suggests 3–6 months of essential outgoings.
    ESA (Employment and Support Allowance)
    A UK benefit for people unable to work due to illness or disability.
    Fixed costs
    Outgoings that stay the same each month — rent, mortgage, council tax, broadband.
    Gross income
    Your total earnings before tax, National Insurance and pension are deducted.
    Household budget
    A budget shared by everyone living together. Tracks combined income and shared bills.
    Impulse spending
    Unplanned purchases driven by emotion or convenience rather than need.
    Irregular income
    Earnings that vary month to month — freelance work, zero-hours contracts, commission.
    ISA (Individual Savings Account)
    A UK savings or investment account where interest and gains are tax-free. Annual limit is £20,000.
    Minimum payment
    The smallest amount a credit card company will accept each month. Paying only this keeps you in debt for years.
    Net income
    Your take-home pay — what's left after tax, National Insurance and pension contributions.
    Open Banking
    A UK regulation that lets apps read your bank data with permission. Powers most automated budgeting apps.
    Overdraft
    A pre-arranged borrowing facility on a current account. Interest applies when you go below zero.
    Payday
    The day your salary or benefits hit your account. The most important date in any monthly budget.
    PIP (Personal Independence Payment)
    A UK benefit for people aged 16+ with long-term health conditions or disabilities.
    Recurring bill
    A bill that comes out every month or year on a set schedule. Subscriptions, utilities, insurance.
    Safe-to-spend
    What you can spend on non-essentials this month after income, bills and savings are accounted for. The Life Buddy calculates this automatically.
    Sinking fund
    Money you set aside gradually for a known future expense — Christmas, car insurance, holidays.
    Standing order
    An automatic payment you set up for a fixed amount on a fixed date. Unlike direct debit, the amount never changes.
    Subscription
    A recurring payment for a service. Streaming, software, gym memberships.
    Sweep
    Automatically moving leftover money from a current account into savings at the end of the month.
    Universal Credit
    A UK benefit replacing six older benefits including JSA, Housing Benefit and Working Tax Credit. Paid monthly.
    Variable costs
    Outgoings that change month to month — groceries, fuel, eating out, entertainment.
    Zero-based budget
    A budget where every pound has a job, so income minus outgoings equals zero. Often heavy maintenance.

    Now put the theory to work

    Knowing the words is one thing. Knowing what's safe to spend tonight is another.