Having just reconciled levy payments made by my Proprietors 7 calendar days in advance in order to avail themselves of our Plan’s 10% discount, I’m totally in agreement with scotlandx, although as we’re self-managed I’m in a better position to “manually” show a little latitude (1 day) than would a Strata Manager’s automated system covering many payments from many Plans.
Assuming you’re in NSW, the detail of your Plan’s early payment discount would need to be provided in a Special By-Law, and the detail of all Fees for late payments, and how they’re implemented, would be outlined in the Agency Agreement that your Plan has with its Strata Manager. You can obtain copies of both of these from your Strata Manager, and thereby ascertain your “rights” with regard to both.