London has lost its crown as the UK's top tipping spot to Glasgow according to online booking service OpenTable.
Glasgow diners were found to be the most generous tippers in the UK, leaving an average of £5.33 for restaurant staff.
While the national average tip has increased slightly from £4.18 in 2015 to £4.51 today, the London average has fallen by 12% to £5.01.
An average tip increase of 30% made Belfast a new entry on this year's biggest tipping cities list, while diners in Norwich have also become significantly more generous, with their average tips climbing 36% from £3.43 in 2015 to £4.68.
Nottingham was revealed as the most frugal region with the average tip coming in at just £3.22 and one in five diners admitting to never leaving a tip whilst eating out. Liverpool was named the city most likely to leave a tip with dinner or drinks (97.5%), taking over from Wrexham who were the most consistent tippers in 2015.
The study also found that the UK has seen an increasing number of restaurants, bars and cafés turn completely cashless following the consumer trends towards card and contactless payments, which is favoured by more than half (58%) of UK diners when paying for their meal. But when it comes to tipping, cash is king for 72% of diners.
Adrian Valeriano, vice president for Europe at OpenTable, said: "As cashless payment becomes a trend more restaurants and bars are turning to, it's interesting to see how the UK are still holding on to tradition and tipping with cash when dining out."