Splitting bills and tipping fairly

Few things make a good meal end awkwardly like a confusing bill. A little arithmetic, and a little agreement beforehand, takes the stress out of it.

Working out a tip quickly

Find 10% by moving the decimal one place left, then build from there. On a $64 bill, 10% is $6.40, so 15% is $9.60 and 20% is $12.80. Another trick: double the tax if the tax rate is around 8 to 10%, which gives roughly a 16 to 20% tip.

Bill	15%	18%	20%
$40	$6.00	$7.20	$8.00
$65	$9.75	$11.70	$13.00
$100	$15.00	$18.00	$20.00

Customs differ

In the United States, 15% to 20% is typical for table service. In the UK, a discretionary service charge of around 10% to 12.5% is often added to the bill, so check before you tip again. In much of Europe, rounding up or leaving a few euros is common. In Japan, tipping is generally not expected. When you are travelling, a quick search or a polite question to staff saves guessing.

Splitting evenly

If everyone had a similar meal, divide the total including the tip by the number of people. It is quick and nobody has to keep a tally. A $101.95 total for three people is $33.98 each.

Splitting by what people ordered

If appetites and orders differ, a fair approach is:

1. Each person adds up their own dishes and drinks.
2. Shared items are divided equally.
3. Tax and tip are shared in proportion to each person's subtotal.

The last step matters. If someone's food was 40% of the total, they pay 40% of the tax and the tip.

Handling alcohol

If some people did not drink, it is kinder to split drinks separately from food. Say it before ordering, not after the bill arrives.

Cash and rounding

Rounding each share up to the next dollar gives a small cushion for the tip. If the cushion is bigger than needed, whoever pays the card can keep the change for the next round.

Agree on the method first

The easiest way to avoid friction is to decide at the start of the meal: "We will split it evenly" or "We will each pay for what we had". Then nobody feels short-changed afterwards.