This article is for general information only. It is not financial advice and does not recommend a specific lender or product.

Budgets tend to focus on what comes out every month: rent or mortgage, food, utility direct debits. The costs that arrive once a year, or vary unpredictably, are the ones that often fall through the gaps.

Here are four categories worth reviewing before they arrive as a surprise.

What changed

Recent cost increases have made several of these overlooked expenses noticeably larger:

  • The TV Licence fee rose to £174.50 in April 2025, up from £169.50 the previous year. Many households do not include this annual payment in their monthly budget planning.
  • Vehicle Excise Duty (VED) increased across the board in April 2025. The standard annual rate for most petrol and diesel cars moved to £195. Electric vehicles, previously exempt, became liable for VED for the first time: vehicles registered before 1 April 2025 moved straight to the £195 standard rate, while vehicles registered on or after 1 April 2025 pay a reduced first-year rate before moving to the standard rate in subsequent years.
  • Home insurance premiums have been rising sharply: the Association of British Insurers (ABI) reported that the average home insurance premium reached £396 in Q4 2024, up 7% year-on-year. Renewal quotes often differ significantly from the previous year, particularly for buildings and contents cover.
  • MOT and associated repair costs are a commonly missed budget line. The maximum MOT fee for a car is £54.85 (set by the DVSA), but the average cost of repairs needed to pass is higher: figures from consumer groups suggest typical repair bills of £150–£300 for common failures such as tyres, brake pads, and lighting. Because the MOT falls in the same calendar month each year, it can be planned for, but it is frequently left out of monthly budgets.

Why does this matter?

When an annual or irregular cost is not built into a monthly budget, most households meet it from whatever is left at the end of the month, or by using a credit card or overdraft. That can create a short-term debt that takes a few months to clear, adding interest to a cost that was already stretching things.

Planning ahead can reduce the chance of that pattern. A useful first step is to divide any annual bill by twelve and set that figure aside each month as a line in the budget. Using the figures above as an example: the TV Licence (£174.50) plus standard VED (£195) comes to £369.50 a year, or roughly £30.79 a month. Adding that single line to a monthly budget means neither bill should arrive as a surprise. The budget planner tool can help you work out where these and other annual costs sit in your monthly figures.

Who may be affected?

  • Households that budget monthly but do not include annual bills as monthly provisions.
  • Car owners, particularly those who previously paid nothing for VED and need to account for that cost from 2025 onwards.
  • Renters and homeowners whose insurance renewal is approaching and who have not compared the new quote against the market.
  • Anyone whose budget was last reviewed more than twelve months ago, as several fixed costs will have changed since then. Council tax, for example, is confirmed each spring by local authorities and often increases annually — it is a commonly forgotten budget line for households that pay by ten monthly instalments rather than twelve.

What to read next

For a broader look at how borrowing fits into a household budget, the guide on personal loans explains how lenders assess affordability and what to consider before borrowing for a one-off cost.

If an unexpected bill has led to borrowing across multiple places, the debt consolidation guide explains how that type of loan works and what to weigh up.

The budget planner tool can help you work out where these annual costs sit in your monthly figures.

Sources

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