Bill Lot
A Bill Lot is a batch of maintenance bills generated together for a specific period (typically one month), identified by a unique lot number, so all bills in that generation run share the same reference.
What is Bill Lot?
When the treasurer generates monthly maintenance bills, the system creates them as a Bill Lot — all bills for April 2025, for example, share lot number B-APR-25. This makes it easy to void, re-generate, or audit a specific month's billing as a unit.
Bill Lots also control duplicate prevention: if a lot already exists for a period, the system warns before allowing re-generation.
Why it matters
Without lot-based billing, there is no audit trail showing which bills were generated when. Lots create an immutable generation record — useful when members dispute a bill or the auditor asks for proof of timely billing.
Lots enable bulk operations: mark all bills in a lot as posted, generate receipts, or export the full lot for reconciliation.
Legal & regulatory context
While 'Bill Lot' is not a term in the MCS Act, the obligation to issue timely bills and maintain records of all issued bills is implied in the accounting standards for co-operative societies.
An auditor looking for proof that maintenance was billed on time will look at Bill Lot generation dates as documentary evidence.
How SocietyBee handles it
SocietyBee's Generate Bills flow creates a Bill Lot for each month. Each lot is date-stamped, shows the number of bills generated, and locks once any payment is posted against it. The treasurer can preview a lot before finalizing.
Try SocietyBee free →Frequently asked questions
Can I generate bills for multiple months in one lot?
No. Each lot corresponds to one billing period. For arrears or catch-up billing, use Supplementary Bills rather than retroactive lots.
What happens if I need to correct a bill after the lot is generated?
In SocietyBee, you can void an individual bill and re-issue a corrected one. The void is recorded in the lot history for audit trail purposes.