Dublin buses can't accept cash.
Since When The last time i got the bus I paid 10p in Cash .
You can pay cash - but must have the exact fare.
From Citizen's advice:
Paying with cash
You must have the exact fare and only coins (not notes) are accepted. No change is given. You can pay the bus driver.Leap Cards
You can save up to 30% by using a Leap Card compared to paying with cash. Leap Cards are accepted by all Dublin Bus services, such as Airlink, Xpresso and Nitelink. They are also valid for Bus Éireann city and town services, and commuter and rural routes (TFI Local Link). They can be used to buy tickets using Expressway services.
There are different types of Leap Cards:
Adult
Adult personalised
Child 5-15 years old
Child 16-18 years old
Young adult 19-25 years old
Student
Visitor
You can buy a visitor Leap Card and choose between a one-day or 3 days or 7-day pass. You can buy a ticket online or at various locations. See where you can buy a leap card on leapcard.ie.
Prepaid tickets
You can also pay your fare before you travel using a prepaid ticket. You can buy one ahead of time at the bus station or download it to your phone from the TFI app.
On Bus Eireann services, you also have an option to order your ticket online.
Free Travel Passes
Free Travel is available to some people who are permanently living in Ireland. You can use a Free Travel Pass on most Bus Éireann services and on Local Link services. You cannot use it on Airlink services.
Bus timetables
Departure times are available on the TFI website, at certain bus stops or through the smartphone app.
You can plan your journey and access bus timetables on the Dublin Bus website.
On the Bus Éireann website, you can plan your journey and check timetables.
Rural transport
TFI (Transport for Ireland) Local Link provides links between rural transport and national bus and rail services throughout Ireland.
As well as regular rural services, Local Link provides door-to-door services that can be pre-booked with your Local Link office.
Find out more about rural transport and Local Link services.
Complaints
Complain about a Dublin Bus service
If you have a complaint about a Dublin Bus service, you can:
Phone 01 873 4222
Email
customercomment@dublinbus.ieWrite to their customer comment desk
Visit their office in-person
You should include as much detail as possible, such as:
The date and time of travel
The bus route number
The bus registration number and
Where you were leaving and going.
You can read the Dublin Bus customer charter on its website.
Complain about a Bus Éireann service
If you have a complaint about a Bus Éireann service, you can:
Phone 0818 836 611
Fill out the contact form
Email
customercare@buseireann.ieYou can also read the Bus Éireann customer charter on its website.
Taking a complaint further
If you are not satisfied with the service providers reply to the complaint, you can make a complaint to the National Transport Authority.
Passenger rights
Under EU Regulation 181/2011, bus and coach passengers have minimum rights when travelling in the European Union.
Passengers with disabilities
Public transport companies offer a range of accessibility services.
You can find information on the Dublin Bus website about bye-laws and information for people with disabilities.
Read more about travelling on public transport with a disability or reduced mobility.
Useful contacts
Dublin Bus
59 Upper O'Connell Street
Dublin 1
Ireland