Q.A bill drawn on 5 January 2023 is payable 3 months after date. Find its nominal due date and its legally due date (date of maturity).

This is a time bill, so its maturity is fixed by adding the term to the drawing date and then allowing the 3 days of grace.

Adding three months to 5 January gives 5 April 2023; three days of grace then push the legal maturity to 8 April 2023.

Step 1 — Add the term to the drawing date.

The bill is drawn on 5 January 2023 for a term of 3 months "after date". Adding 3 calendar months:

Step 2 — Add the 3 days of grace.

Every time bill is allowed 3 days of grace, added to the nominal due date:

Verification. Counting month by month from the drawing date confirms the nominal date (Jan→Feb→Mar→Apr is exactly 3 months, landing on the 5th), and the grace period is a flat 3 days regardless of month lengths, so 5 + 3 = 8 April is correct. The maturity date used in any later discounting of this bill would be 8 April 2023.

If the term were given in days (say "90 days after date"), you would count the exact days forward from the day after the drawing date and then add the 3 days of grace, rather than adding calendar months.

Forgetting the 3 days of grace (a very common slip that throws off every later discount calculation), or allowing grace on a demand bill — demand bills get no days of grace.