The monthly cost is not only the mortgage

When people talk about affording a home, the conversation usually starts and ends with the mortgage. It is the biggest single commitment, and lenders scrutinise your ability to meet those monthly repayments. Yet the mortgage is only part of the story. Every property owner faces a raft of ongoing costs that can add hundreds of pounds to the monthly budget. Ignoring these extras can leave you stretched, surprised or scrambling to cover bills you had not fully anticipated.

This post walks through the main running costs that sit alongside your mortgage payment. From council tax and energy to insurance and repairs, each expense plays a role in the true cost of homeownership. Understanding them early helps you plan a realistic budget and make confident decisions about what you can genuinely afford.

Council tax: the unavoidable local levy

Council tax is a charge levied by your local authority to fund services such as rubbish collection, street lighting, libraries and social care. The amount you pay depends on the valuation band of your property and the rates set by your council. In England, homes are sorted into bands A to H based on their value in 1991. Scotland and Wales use their own valuation dates and band structures.

A typical Band D property in England might attract an annual bill of around £2,000, though this varies widely by region. Urban areas with higher service demands or smaller tax bases sometimes charge more, while rural districts may levy less. You pay in ten monthly instalments unless you arrange to spread the cost over twelve months. Single occupiers can claim a 25 per cent discount, and some households qualify for council tax support if income is low.

Council tax is non-negotiable. You cannot opt out, and falling behind can lead to court action and bailiff visits. Budgeting for it from day one is essential, especially if you are moving from rented accommodation where the landlord may have covered it or where you shared the cost with housemates.

Energy bills: heating, lighting and power

Energy costs cover gas and electricity for heating, hot water, lighting and appliances. The amount you pay depends on the size of your home, how well it is insulated, the efficiency of your boiler and your household's usage habits. A small flat with modern double glazing and a condensing boiler will cost far less to run than a draughty Victorian terrace with single-pane windows.

Prices fluctuate with wholesale markets and government policy. In recent years, the energy price cap has shaped what most households on standard variable tariffs pay. Even with the cap in place, a typical household might spend £1,500 to £2,000 a year on energy, though bills can climb much higher in larger or poorly insulated homes during cold winters.

Highlight

Energy Performance Certificate ratings offer a guide to running costs. Homes rated A or B are cheaper to heat than those rated E, F or G, where bills can spiral.

Paying by direct debit usually secures a small discount, and many suppliers offer fixed-rate tariffs that lock in prices for a year or more. Smart meters help you monitor usage in real time, making it easier to spot wasteful habits and adjust behaviour. Simple measures such as draught-proofing doors, bleeding radiators and turning down the thermostat by one degree can shave pounds off monthly bills without sacrificing comfort.

Water and sewerage charges

Water bills cover the supply of fresh water and the removal and treatment of wastewater. Most properties in England and Wales pay a fixed annual charge based on the rateable value of the home, though an increasing number have water meters that charge according to actual usage. Scotland includes water and sewerage in council tax, so homeowners there do not receive a separate bill.

A typical unmetered household in England might pay around £400 to £500 a year, though this varies by region and supplier. Metered bills depend on consumption, so a single person living alone may pay less on a meter, while a large family could pay more. You can usually request a meter to be fitted free of charge, and the supplier will let you revert to unmetered billing within a year if the switch does not work in your favour.

Water companies often offer social tariffs or payment plans for customers struggling with bills. It is worth checking what support is available if your circumstances change or if affordability becomes an issue.

Buildings and contents insurance

Buildings insurance protects the structure of your home against risks such as fire, flood, subsidence and storm damage. If you have a mortgage, your lender will insist you hold buildings cover as a condition of the loan. Contents insurance is optional but covers your belongings, including furniture, electronics and clothing, against theft, damage or loss.

Premiums vary by location, property age, construction type and claims history. A modern flat in a low-crime area will attract cheaper premiums than a listed building in a flood zone. Shopping around at renewal time can save money, but the cheapest policy is not always the best. Check excess levels, coverage limits and exclusions carefully to ensure you are adequately protected.

Expect to pay anywhere from £150 to £400 a year for buildings insurance, with contents cover adding another £100 to £200 depending on the value of your possessions. High-value items such as jewellery or art may need separate endorsement or specialist cover.

Maintenance and repairs

Homeownership brings responsibility for every tap washer, roof tile and garden fence. Boilers break down, gutters clog, fences rot and appliances fail. Some repairs are minor inconveniences, while others demand urgent attention and significant expense. A new boiler can cost £2,000 or more, a roof repair several hundred, and even small jobs add up over time.

Setting aside a monthly sum for maintenance is sensible. A common rule of thumb is to budget one per cent of the property's value each year, though older homes or those with period features may need more. A £250,000 home might therefore require £2,500 a year, or roughly £200 a month, to cover routine upkeep and the occasional emergency.

Leasehold properties add another layer. Service charges cover communal areas, building insurance and sometimes a sinking fund for major works. Ground rent is usually modest, but service charges can run into thousands of pounds a year for flats in managed blocks. Always check the service charge history and any planned works before buying a leasehold property.

Broadband, TV and phone

Modern life demands connectivity. Broadband packages range from basic ADSL lines to ultrafast fibre, with prices starting around £20 a month and climbing to £50 or more for the fastest speeds. TV subscriptions, streaming services and mobile contracts add further costs. A household might easily spend £60 to £100 a month on communications and entertainment.

These costs are discretionary to an extent, but reliable broadband is essential for remote work, online banking and staying in touch. Bundling services with a single provider can reduce the total bill, and switching at the end of a contract often unlocks better deals.

Ground maintenance and garden care

If your property has a garden, lawn mowing, hedge trimming and seasonal planting take time and sometimes money. You might hire a gardener for a few hours each month, or invest in tools and materials to do the work yourself. Even low-maintenance gardens need occasional attention, and neglecting outdoor spaces can lead to bigger problems such as damp from overgrown vegetation or blocked drains from fallen leaves.

For flats with communal grounds, service charges usually cover gardening and landscaping. For houses, budget a modest sum each year for plants, compost, tools and perhaps professional help if the garden is large or complex.

Putting it all together

Add up council tax, energy, water, insurance, maintenance, communications and any service charges, and the total can easily reach £400 to £600 a month on top of your mortgage. For some homes, especially older or larger properties, the figure climbs higher. These costs are not optional extras. They are the price of keeping a home warm, safe, insured and legally compliant.

Understanding the full monthly picture before you buy helps you avoid overcommitting. A mortgage that looks affordable in isolation may feel tight once you account for everything else. Lenders assess affordability based on income and outgoings, but they do not always capture the nuances of your specific property or lifestyle.

Sketch running costs

Running cost calculators let you model different scenarios and see how various properties compare. Inputting council tax bands, energy ratings and estimated maintenance needs gives you a clearer sense of what you will actually pay each month. Armed with that knowledge, you can make decisions that fit your budget and your life, not just the headline mortgage figure.

Homeownership is rewarding, but it comes with responsibilities and costs that renters do not face. Planning for them from the start turns potential surprises into manageable expenses and helps you enjoy your home without financial stress.