Womenswear retailer Quiz has posted a leap in sales and expects continued strong growth in the future.

The omnichannel fast fashion operator posted year-on-year sales growth of 30% for the year to March 31.

Online and international performance led the way, as ecommerce sales surged 158% to £30.6m and overseas revenues jumped 32% to £21.2m.

Online growth came not just through Quiz’s own portals but also through “very strong” third-party sites.

Revenues from Quiz’s UK stores and concessions rose 12% over the year to £64.6m. Five new standalone stores and seven concessions opened, and a shop at Bluewater made its debut after the period end.

Ireland and Spain have been a focus for new Quiz-branded locations, while further franchises have been added in established overseas markets.

Full-year margins were in line with expectations, but operating costs came in higher than originally planned, the retailer said. That was mainly a result of investment in logistics, marketing and buying being brought forward to support immediate growth.

Quiz chief executive and founder Tarak Ramzan said: ”We are delighted to have successfully completed our first financial year since our IPO in July. We look forward to expanding the brand with initiatives such as the launch of own-language international websites.”

Quiz will unveil its final results on June 5.