These details are printed on your invoices and decide whether GST is charged. Have your ACRA business profile and, if registered, your IRAS GST registration letter nearby.
UEN
Your Unique Entity Number from ACRA, for example 201912345K. It's printed on every invoice.
Are you registered for GST?
- Yes: enter your GST registration number. We'll add GST to your tax invoices.
- No: only GST-registered businesses may charge GST, so your invoices won't show any.
GST registration number
It's often the same as your UEN; use Same as my UEN to copy it across. Some older registrations have a different number starting with M, so check your IRAS letter if you're not sure.
GST registered from
The date your registration took effect. Invoices dated before it won't charge GST.
Financial year
The month your accounting year starts. Many companies use January; choose whatever your accountant uses.