In Georgetown (the Capital), tipping is CUSTOMARY and EXPECTED by the usual sorts of workers - Taxi Drivers, Bell Hops, Waiters/Waitresses & Bar Tenders.

10% is the norm and 15% is for excellent service.

Keep the exchange rate in mind... the GYDollar is $207 to $1 USD!  So a tip over $1000GYD is not unusual.

In the outlying villages and smaller cities, tipping rarely exceeds 10%.