From petrol prices to mortgage rates, the US-Israeli war with Iran has already had an impact on people's finances in the UK.
How deep and sustained that turns out to be depends on the duration of the conflict and how quickly supply lines and economies can recover.
Here are some of the areas to watch out for.
Drivers may have already noticed that prices at the pump are on the rise.
By Sunday, average petrol prices had ticked up by 4.68p to 137.51p a litre, while diesel had increased by 8.59p to 150.97p, the RAC motoring organisation said.
