In 2026, tipping on dinner in London is customary but often automated through a "discretionary service charge." Most mid-range and high-end restaurants will add a standard 12.5% (sometimes 15%) service charge directly to your bill. If this is already included, you are not expected to tip any additional amount. However, it is vital to check the bottom of your receipt; if "Service Not Included" is written, it is polite to leave a tip of 10% to 15%. While tips are theoretically optional in the UK, they are standard practice for sit-down service. For casual dining, pubs (where you order at the bar), or takeaway, tipping is generally not expected, though you might see a "tip jar" for small change. A common 2026 "etiquette tip" is to check if the electronic card machine asks for a tip—if a service charge was already on the bill, you can simply select "no" to avoid double-tipping.