It is not just the mortgage
One of the biggest mistakes first-time buyers make is focusing only on the mortgage payment. That matters, but it is only part of the monthly cost of owning a home.
To feel comfortable after you move, you need a fuller picture of what will leave your account each month.
The main monthly costs to plan for
Mortgage payment
Usually your biggest monthly cost, but not the only one.
Council tax
Often forgotten when people first budget, but it can make a big difference.
Gas, electric and water
Utility costs vary a lot depending on the property and how you live.
Insurance
Buildings insurance is a core cost, and some buyers also want contents cover.
Internet and subscriptions
Broadband, TV packages and subscriptions all add up over time.
Maintenance buffer
Even if nothing is broken now, it helps to leave room for repairs and small surprises.
Why this catches buyers out
A property can look affordable when you only compare the mortgage payment with your current rent.
But once you add council tax, utilities, insurance and general home costs, the real monthly number can look very different.
A better way to budget
Do not ask, "Can I just afford the mortgage?"
Ask, "Can I comfortably afford the full monthly cost of living there?"
What to do next
Once you understand the types of monthly costs involved, the next step is to put real numbers next to them.
Use the monthly cost calculator to build a more realistic budget, then use the readiness score to see whether the numbers still feel comfortable.
Monthly cost FAQs
Quick answers to the questions UK first-time buyers most often ask about the monthly cost of owning a home.
How much does it cost to own a house in the UK each month?+
For most first-time buyers, the realistic monthly cost is the mortgage payment plus £350–£600 in additional costs (council tax, utilities, maintenance, insurance, broadband, plus service charge if leasehold). On a £250,000 home with a £225,000 mortgage at 5%, that means roughly £1,300 mortgage + £450 everything else ≈ £1,750/month total — but it varies widely by property type, location and energy efficiency.
What monthly costs are there besides the mortgage payment?+
Council tax, gas and electricity, water, broadband and phone, buildings and contents insurance, an ongoing maintenance budget, and (for leasehold flats) service charge and ground rent. The categories most people forget when pre-buying budgets are maintenance (£50–£150/month) and the savings buffer for irregular costs like boiler servicing.
How much is council tax in the UK?+
Council tax depends on the property's band (A-H, set by the Valuation Office) and the local council. Typical first-time buyer properties fall in bands B-D. Realistic annual amounts run £1,200–£2,200, payable in 10 or 12 monthly instalments depending on the council. Check the exact band for any specific property on gov.uk before assuming.
What's a typical service charge and ground rent on a UK flat?+
Service charges vary enormously by building. £1,500–£3,000 per year is common for a standard leasehold flat; new-builds and buildings with concierge / lifts / gyms can be £5,000+. Ground rent ranges from peppercorn (effectively zero) on newer leases to several hundred pounds annually on older ones. Always read the lease and the last 2 years' service charge accounts before offering.
Are utility bills more expensive in a house than a flat?+
Usually yes. Houses tend to have more space to heat and more external walls losing heat. EPC rating matters more than size — a well-insulated 3-bed costs less to run than a poorly-insulated 1-bed. Ask for the EPC certificate before offering and look at the estimated annual heating cost on it for a realistic baseline.
How much should I budget for maintenance and repairs each month?+
A common rule of thumb is 1% of the property value per year — so £2,500/year (£210/month) on a £250,000 home. In year 1 it's often less (the survey-flagged things you fix early); in years 5-10 it can be more (boiler replacement, roof work, white goods). Setting aside a steady monthly amount avoids painful one-off bills.