Uber is sharing the wealth – well, today, anyway.

The company is rolling out its nationwide in-app tipping feature on Tuesday by matching all tips dollar-for-dollar through 11:59 p.m. And it assured that it was taking zero service fees on tips.

“Great service deserves to be rewarded,” the company wrote in a blog post, where it laid out how passengers can steer extra dollars to their drivers. Riders will now see the option to tip when they rate their drivers at the end of a trip, which can be a preset amount ($1, $2, $5) or a custom amount. And the tip can be added up to 30 days from the end of a trip, just in case you forget.

See also: You really should be tipping your Uber driver 

The ride-sharing app began test-driving the tipping feature in Seattle, Minneapolis and Houston last month, but drivers and driver advocates have long been campaigning for it. New York City’s Taxi and Limousine commission passed a measure in April that required ride-hailing apps like Uber that only take plastic to include a way for passengers to include gratuity with their debit and credit card payments.

“Tipping is a vitally important source of income for thousands of families who are struggling to make ends meet right now,” a Machinists Union official said in a statement at the time. “We were proud to lead the way on tipping on behalf of drivers in New York City and across the nation.”

See also: Uber admits to shortchanging its NYC drivers millions of dollars 

And competitor Lyft, which has included a tipping option since 2012, couldn’t resist getting in a dig on Monday. “Tipping isn’t new to us at Lyft,” Lyft spokeswoman Alexandra LaManna said. “We’ve offered in-app tipping since our earliest days because it was the right thing to do, and our drivers have earned an extra $250 million as a result.”

If you’re new to tipping your Uber driver, experts told Moneyish to follow the same rule of thumb that you would for a taxi, forking over 15% to 20%, or $2 to $5 if you’ve only gone a short distance. Reward the driver for picking you up quickly, transporting you timely and efficiently, helping with your bags and having a clean car. You can skip the tip if he or she keeps getting lost, the car smells bad or the driver makes you uncomfortable.