Does council tax ever cost more than your mortgage?

For anyone buying a home with a mortgage, council tax is almost always the junior partner in the monthly bill. The numbers make the point starkly: even in Dorset, the English authority with the highest council tax, the annual Band D charge only matches a typical monthly mortgage payment on a home costing less than about £56,300 — and fewer than one in every 200 homes sold in England in 2025 was that cheap.

That leaves the reverse true for more than 99% of buyers: the mortgage is the number that dominates, and council tax, though it varies a lot from place to place, is a comparatively small and stable slice on top.

Here is how the two figures are set — and where, if anywhere, they cross over.

Two very different numbers

Your monthly housing cost as a mortgaged buyer is built mainly from two recurring charges:

• The mortgage payment rises directly with the price you pay. Borrow more and the monthly repayment climbs in step, with no ceiling. At the most recent Bank of England quoted rate for a five-year fix at 75% loan-to-value (4.32%, April 2026), a 25-year repayment mortgage costs roughly £545.67 a month for every £100,000 borrowed.
• Council tax is set by your local billing authority and fixed by the property's valuation band (A to H), not by what you actually paid. The band is based on an estimate of the home's value on 1 April 1991, so it is only loosely connected to today's price. Across the 296 English billing authorities, the 2026-27 Band D charge ranges from £1,028.21 in Wandsworth (the cheapest) to £2,765.02 in Dorset (the dearest), with a national average of £2,410.97 (gov.uk council tax statistics, 2026-27).

The crucial structural difference is that the mortgage scales without limit, while council tax is capped by the band system. Under the Local Government Finance Act 1992, a Band H bill is exactly twice a Band D bill, and a Band A bill is two-thirds of it — so within any one area the charge varies at most threefold from the cheapest band to the dearest. The mortgage has no such ceiling.

The mortgage pulls away as prices rise

Because the mortgage grows with price while council tax barely moves, council tax shrinks as a share of the monthly bill the more expensive the home. The table below holds council tax at the national average Band D (£200.91 a month) and shows the mortgage payment at a 25% deposit across a range of prices.

Mortgage on 75% of the price over 25 years at the BoE quoted rate of 4.32% (April 2026); council tax at the national average 2026-27 Band D. Figures rounded.

At the £300,000 national median for a house or flat sold in England in 2025 (based on 720,619 Land Registry transactions), council tax is about 16% of the mortgage payment — and that share keeps falling as prices climb.

Where the two lines actually cross

To find the price at which council tax equals the mortgage, you solve for the loan whose monthly repayment matches the monthly Band D charge. At a 25% deposit and the 4.32% quoted rate, the crossover prices are:

In other words, only below roughly £49,000 — at the national average council tax — does the Band D bill start to outweigh a 75%-LTV mortgage. Even in the most heavily taxed authority in England, the crossover sits at about £56,300.

Homes at those prices are rare. Of the 720,619 English house and flat sales recorded for 2025:

• 0.24% (1,741 sales) went for under £50,000;
• 0.44% (3,141 sales) went for under £56,300;
• 3.4% (24,245 sales) went for under £100,000.

So for the other 99.5% or so of buyers, the mortgage is the larger monthly commitment — usually by a wide margin.

You can push the arithmetic to its limit and the conclusion barely changes. If you loaded the maximum statutory council tax — a Band H bill, twice the local Band D — onto a home, it would still only overtake an average-area mortgage below about £98,000, a price point that covered just over 3% of 2025 sales. A Band H home (one of the most valuable in its area on 1991 values) selling that cheaply would itself be highly unusual.

The one case where it flips

There is a clear exception: owners with no mortgage. Once the loan is repaid — or for cash buyers and many long-term owners — the mortgage line disappears, and council tax becomes the single largest recurring tax on the home. For a mortgage-free owner in Dorset, that Band D bill of £2,765 a year is the dominant fixed housing cost, not a footnote.

That is why council tax matters far more to outright owners, downsizers and later-life households than these buyer figures suggest. The comparison here is specifically between a mortgage payment and a council tax bill; remove the mortgage and the balance inverts.

What the figures do and don't tell you

A few things to keep in mind before reading too much into any single number:

• The mortgage figures assume a 25% deposit (75% loan-to-value) at the Bank of England's quoted five-year-fix rate. Your own rate will depend on your lender, deposit, term and credit profile — a smaller deposit typically means a higher rate and a larger monthly payment, which would push council tax's share down further still.
• The council tax band reflects an estimate of the home's 1991 value, not today's price, so a cheap home can sit in a higher band than its sale price implies, and vice versa.
• These are the two largest recurring costs, but not the only ones — energy, insurance and maintenance sit on top of both.

To see the actual mortgage, council tax and energy picture for a specific street, you can look up any postcode on the Homecost tool — for example a Wandsworth postcode, where the lowest Band D in England meets some of the country's higher prices.

For the flip side of this calculation — how large a slice council tax is of the total monthly bill at each price level — see how much of your monthly home cost is council tax. For why the same Band D charge ranges from £1,028 to £2,765 depending on where you live, see the cheapest and most expensive council tax areas in England and the guide to how council tax bands are worked out. For the full purchase-and-ownership picture at the national median, see the true cost of buying a £300,000 home, and you can browse more explainers in the buyer guides section.

Figures are drawn from 720,619 HM Land Registry transactions, the 2026-27 council tax set for all 296 English billing authorities, and the Bank of England's quoted mortgage rate, fetched on 19 July 2026.

This is general information, not advice. Speak to a qualified adviser before acting.