Porsche has started notifying its customers awaiting delivery of their vehicles in the UK that they might have to pay up to 10 percent more in case of a no-deal Brexit due to import tariffs.

Autocar reports that customers that ordered a new Porsche after January 18 have been notified about the possibility of paying extra tariffs in case UK leaves the EU without a deal. Anyone who ordered a Porsche before that date will not be affected.

The UK is going to leave the European Union on March 29, but the two sides have yet to reach a deal, which means that import and export tariffs of 10 percent could be applied.

“When our customers are looking to order a car, we try to keep them informed with as much information as possible. This includes any changes outside of our control that may affect the price of the car they’re interested in purchasing,” said Porsche.

“As one potential outcome of the Brexit negotiations, there is a possibility that a duty of up to 10% may be applied to cars imported into the UK by us after 29 March. In light of this, we have chosen to inform customers whose cars are likely to arrive after Brexit occurs to warn them that they may be affected by this tariff – allowing them to be fully informed at the point of sale and, if they wish, to adjust their order accordingly.

“This is a precautionary step in the interests of allowing our customers to plan ahead, should this situation arise.”

Other manufacturers might follow suit, with Volvo said to be first in line to announce that prices for the 2020 model year will, like Porsche, be 10 percent higher in case of a no-deal Brexit.