Is it cheaper to use a washing machine after 6pm?

Is It Cheaper to Run Your Washing Machine After 6 PM?

Many of us have heard the tip: wait until after 6 pm to run the washing machine and save on energy bills. But is it really that simple? The truth is, it depends entirely on your electricity plan.

If you're on a standard, single-rate tariff, the cost of electricity stays the same throughout the day. That means running your machine at 6 pm, 8 pm, or noon makes no difference to your wallet. However, things change if you're on a time-of-use tariff like Economy 7 or a smart tariff designed to reward off-peak usage.

These plans offer lower rates during specific hours, usually at night. With Economy 7, for example, cheaper electricity typically runs from around midnight to 7 am—not immediately after 6 pm. So while evening use might feel like a smart move, the real savings often come later, once demand drops across the grid.

Some newer smart tariffs go further, offering even lower rates during off-peak periods that may shift slightly based on grid demand. If you're on one of these, scheduling your wash for the designated low-cost window could make a noticeable difference over time.

The bottom line? Check what tariff you're on before adjusting your laundry routine. A quick look at your bill or a call to your supplier can tell you if off-peak hours apply—and when they actually occur. For many, the real savings aren't at 6 pm, but much later, in the quiet hours just before dawn.