The pre-tax impact on total group shareholder funds will be between $11 million and $13 million.
"It is a decision we had to make as it just doesn't stack up for us or our shareholders to continue to maintain the existing operation up there," Cowie said in a statement.
"The return on investment from the UK retail operation has not been acceptable and the current trading losses being generated only accentuate this."
Last year Pumpkin Patch decided to shut its US stores, write-off unprofitable UK outlets, and cut head office staff, as the weak global economy continued to bite into foreign sales. It later disappointed investors when it posted a loss of $1.88 million in the year ended July 31.
The retailer's shares yesterday gained 4.4 percent to 70 cents, valuing the company at $117.8 million by market capitalisation.
The company expects to improve operating earnings and cash flows from the second half of the 2012 financial year.
Cowie said Pumpkin Patch has been focusing on its Australasian retail stores over the Christmas period, and tracked "well above last year" though margins were squeezed by higher marketing costs.
The retailer will continue to sell its brand in the UK, and will ramp up its online presence.