The Spanish manufacturer is cutting the price its best-selling Ibiza range by £1,000 and the Leon, Altea and Altea XL models by £1,500 until September.
Larger models such as the Exeo and Alhambra have been reduced by as much as £2,000 in order to boost sales during the current economic climate.
Traditionally, car sales fall during the summer before rising again in September when new plates are introduced. However, with the ending of the scrappage scheme in the UK in April and the ongoing economic difficulties, many manufacturers are now offering discounts to boost demand.
Seat has sold 17,300 new cars this year and has increased sales by 26 per cent compared to the same period last year at the height of the recession.
Head of Operations at Seat UK, Richard Harrison, said: "We have worked really hard to ensure there are savings to be had across the range. This means that anyone on the look-out for a new car will find a great deal on everything from our stylish Ibiza supermini to the popular Leon family hatchback and luxurious Exeo executive saloon or estate."
The Spanish manufacturer is currently promoting popstar Shakira’s European tour as it attempts to raise its profile in the UK. The brand has only a 1.6 per cent share in the market, but a new focus on fleet sales has encouraged growth in the last 12 months.
Over the next few months, an all-new Alhambra will go on sale in the UK, where it will be joined by recent new models such as the Ibiza ST and Seat Leon Cupra R.
The new range of Seat offers will run until September and include several financing and free service bundle discounts.