WASHINGTON－The holiday shopping season is traditionally considered a time full of joy and cheer for both US retailers and consumers. But as this year's holiday shopping season kicked off on Thanksgiving, the mood is a bit mixed.

Retailers, especially small ones, have been struggling to deal with the additional US tariffs on Chinese imports, while consumers, who crave a bargain, are worried about potential price increases in the future.

Holiday shopping season usually refers to the period between Thanksgiving and Christmas, and some define it as the whole months of November and December. The National Retail Federation said holiday sales represent about 20 percent of annual retail sales each year, but the figure can be as high as 30 percent for some retailers, such as hobby, toy and game stores.

Retailers reported higher costs from tariffs and firms generally expected higher prices going forward, but their ability to raise prices to cover higher costs "remained limited," according to the US Federal Reserve's latest survey on economic conditions, known as the Beige Book.

In the Cleveland Fed district, a clothing retailer reduced the use of price discounting to offset higher costs resulting from tariffs. A food retailer said that even though tariffs had increased costs, the company "cannot raise prices on a whim" because of fierce competition.

Retailers' reluctance to raise prices is evident to consumers such as Kelsey Burhan and Sloane Smith, who said that they haven't noticed any price change for the same stores they usually shop.

"I think it's a good discount. I feel like it's about the same with last year," said Burhan, who planned to purchase some purses at Kate Spade and clothes at American Eagle.

For Kumar Kincun, who has been coming to the outlets on Thanksgiving for the past nine years, this year is certainly different. Despite generally stable prices at this moment, Kincun said he is "definitely" concerned about the additional tariffs resulting from the US-China trade tensions.

"The tariffs would impact the price, it will. It goes gradually up, I think that's what is happening," Kincun said. He said he would purchase more products, including Christmas gifts, early in the holiday season to avoid higher prices later on.

Despite strong opposition, the US government imposed 15-percent additional tariffs on some $110 billion worth of Chinese imports, effective on Sept 1, covering a wide range of consumer goods including clothing, footwear, food and books. The United States also threatened to levy additional tariffs on other Chinese products including toys and electronics.

According to the Fed survey, companies affected by the tariffs were more inclined to pass on cost increases. Business contacts in the Chicago Fed district reported that retail prices "increased modestly" and they expected prices to "rise at a somewhat faster pace" over the next 12 months.

"One contact said that food, home goods, and apparel retailers were struggling to pass on higher costs; in contrast, another contact noted that retailers continued to raise prices to reflect higher potential and realized tariffs," the survey said.

In September alone, US businesses and consumers paid $7.1 billion in tariffs, up 59 percent year-on-year, said US anti-tariff advocacy group Tariffs Hurt the Heartland, which noted that the "significant increase" was primarily driven by tariffs implemented by the current US administration.

Kincun, the consumer, voiced hope that the United States and China can work out a trade deal in the near future. "It does not only impact China and the US, it impacts everyone else as well, because both of them are pretty big countries with big economies, so it impacts the world economy," he said.

On the ongoing US-China trade negotiations, Portaro said he is cautiously optimistic. "We are very encouraged that the tariffs have come to a standstill and hopeful that this will soon come to an end," said the startup co-founder.

A potential phase-one deal would have a positive effect on his business and on the industry as well, according to Portaro. "We anxiously hope that both sides can come to an agreement," he said.