21/10/2026
WEIRD TAX WEDNESDAY
The tax on windows — and why people bricked them up
Imagine having to pay more tax simply because your house had more windows. And imagine deciding that the best way to save money was to have some of them bricked up!
It might sound like an unbelievable tax rule, but this really happened in Britain. 🧱
Introduced in England in 1696, under King William III, the Window Tax was designed to raise government revenue by using the number of windows in a property as a rough indication of its value. It was a way of taxing property without directly taxing people's income.
🪟 How did the tax work?
The system changed several times over the years, but the basic principle was that properties with more windows generally faced a higher tax bill.
When the tax was first introduced, there was a basic house tax, with additional charges for properties with more than a certain number of windows. Later changes altered the thresholds and rates, making the rules increasingly complicated.
For example, in 1747, a house with 10–14 windows was charged 6 pence per window, while houses with 15–19 windows were charged 9 pence per window. The rates increased further for houses with more windows.
🧱 Why did people brick up their windows?
Quite simply, to reduce their tax bills.
Householders could sometimes lower their liability by blocking up windows, and historical records confirm that this happened. In 1710, officials were already reporting that people were stopping up windows to avoid the duty.
The practice became sufficiently widespread that Parliament introduced measures to tackle the loss of revenue caused by blocked-up windows.
But there was a serious downside: fewer windows meant less natural light and poorer ventilation in people's homes.
The tax was particularly controversial in crowded towns, where large buildings divided into several homes could attract substantial assessments, with the cost ultimately affecting tenants through their rents.
💡 A tax that affected public health
By the 19th century, the lack of natural light and ventilation had become a major concern. Doctors and public health campaigners argued that the tax was contributing to unhealthy living conditions.
The tax became known as a “tax on light and air” — a fitting description for a duty that could encourage people to reduce the number of windows in their homes.
After years of criticism and campaigning, the Window Tax was finally abolished in 1851, and a tax based on the rental value of inhabited houses took its place.
🔎 One final twist
Not every bricked-up window you see on an old British building was blocked because of the tax.
Some were architectural features, designed to make a building look symmetrical, while others may have been blocked for entirely different reasons. Scottish historical tax records even document individual properties where windows had been closed since the previous assessment, showing that the practice was real — but not universal.
And one popular claim needs a little caution: although the phrase “daylight robbery” is often linked to the Window Tax, there is no convincing historical evidence that the expression originated from it.
The takeaway? The Window Tax is a striking example of how a tax designed to raise revenue could influence the way people built, altered and lived in their homes — sometimes with consequences that went far beyond the tax bill itself.
Weird Tax Wednesday — a little piece of history that proves tax has never been quite as boring as it sounds.
