It's been a slow start for Trade Me's unwanted Christmas gift store.

Just 71 unwanted gifts had been listed for sale at 10.30am on Boxing Day, though one was a used pizza box.

The most expensive was a iPhone XS with a "buy now" price of $1600.

Despite few people listing unwanted presents so far, Trade Me expected hundreds to be listed during the day.

Lingerie, headphones, and power tools have also been listed for sale, as well as books, and a "Trelise Cooper look a like" dress.

TradeMe spokesman Logan Mudge said most people don't mind if people they give gifts to resell them.

"We surveyed nearly 2000 Kiwis recently and 61 per cent said they would have no problem if they were to find out that a gift they'd given was on-sold," he said.

And selling, or regifting, unwanted gifts were now the most likely ways people said they would deal with unwanted presents.

"For the first time, Kiwis are now more likely to regift or onsell an unwanted gift than put it away and forget about it," Mudge said.

Half of the people Trade Me surveyed said they received at least one unwanted present on Christmas Day.

Men were more likely to feel it was okay to sell an unwanted present.

"There's a bit of a gender split in how we feel about regifting and onselling," Mudge said.

"Men are less OK with regifting themselves but not so fussed if someone onsells a present they gave them."

Trade Me has tips for people posting unwanted gifts for sale.

Just 71 unwanted gifts had been listed for sale at 10.30am on Boxing Day, though one was a used pizza box.

"On that note, if you're thinking about selling an unwanted Christmas gift on Trade Me, make sure it's listed in our dedicated section and give the item a good backstory.

"If you're keen to avoid hurting any feelings, it's probably best to avoid items that are personalised or easily identifiable, especially if whoever gave it to you is a bargain-hunter!"

Unwanted gifts are not only a New Zealand phenomenon. A British survey several years ago revealed 2 per cent of presents were thrown away and 22 per cent were eventually re-gifted.

Presents are well down the list of things people like most about Christmas.

Polling in December by the Commission for Financial Capability showed exchanging gifts was only the seventh best thing about Christmas.

The top six ranked things were: time with family (62 per cent), summer weather (37 per cent), time off work/rest (33 per cent), food/eating/drinking/cooking (29 per cent), time with friends (20 per cent), and Chirstmas spirit/love/joy/peace (17 per cent).

Just 13 per cent included giving or exchanging gifts in their top three best things about Christmas.