Payment is due on the birth date of the license holder but can be paid at any time during that month.
If possible, license holders should try to pay and renew their driver's licences before the final working day of the month as this is when taxpayer lines tend to be heaviest.
For persons renewing for the first time after receiving their licences, prices will vary. This is simply because those licences have to be adjusted to the taxpayer's birth month.