Most small businesses reconcile once a year, in a rush, to file a return. Everything that reconciliation reveals is by then historical: an input credit that has expired, a customer who has stopped answering, a TDS default that has been accruing interest for ten months. The single highest-return change available to an owner-managed business is moving that work from annual to monthly.
A ten-day close
| By | Do this |
|---|---|
| Day 3 | Bank reconciliation for every account. Nothing else is reliable until this is done. |
| Day 4 | Sales complete — every invoice raised, every credit note issued. |
| Day 5 | Purchases booked, expenses coded, petty cash reconciled. |
| Day 6 | GSTR-2B reconciled against purchases; mismatches sent back to suppliers the same day. |
| Day 7 | TDS computed, deducted and scheduled for payment. |
| Day 8 | Receivables and payables aged; anything past terms escalated. |
| Day 9 | Provisions, prepayments and depreciation posted. |
| Day 10 | Reports out to the owner. |
The dates matter less than the sequence and the fact that it finishes. A close that runs into the following month has already lost most of its value.
The reconciliations that actually protect you
- Bank. The foundation. An unreconciled bank account means every downstream number is an estimate.
- GSTR-2B against purchases. Credit depends on your supplier filing. Finding a non-filing supplier in month one gives you eleven months to resolve it; finding them at year end usually means the credit is gone. See input tax credit and the invoice management system.
- Sales register against GSTR-1 and GSTR-3B. These three should agree every month. When they diverge, the divergence compounds.
- TDS. Deducted, deposited and mapped to the right section. Errors here surface in the counterparty’s 26AS and come back as queries — see 26AS, AIS and TIS.
- Receivables. Ageing is a compliance matter as well as a cash one: the 45-day payment rule makes overdue MSME payables a deduction question at year end.
Three reports, and what each is for
- Profit and loss with a prior-month and prior-year column. A single-column P&L tells you almost nothing; the comparison is the information.
- Cash flow, with a rolling forward view. Profit and cash diverge, and the gap is where businesses fail. Our twelve numbers health check covers what to watch.
- Debtor ageing with an action column. Not a list of who owes you — a list of what happens next for each one.
If a monthly pack is produced and nobody reads it, the problem is usually that it reports position rather than change. Lead with what moved and why.
Making it survive contact with a busy month
- Fix the date. A close that happens ”when there is time” does not happen.
- Book expenses as they arise, not in a monthly batch. The batch is what makes the close feel heavy.
- Give every recurring transaction a standing treatment so coding is a decision made once, not monthly.
- Escalate supplier mismatches immediately, while the invoice is recent enough for them to care.
- Keep a running note of what needed judgement. At year end, that note is the audit trail — and it feeds the retention discipline in books of account.
Where we come in
A monthly close is the core of our bookkeeping and MIS service — reconciliations done on a fixed cycle and a three-report pack that says what changed, not just where things stand. Where the numbers need interpreting for lenders or investors, our virtual CFO service picks up from there.
This article is general information, not professional advice. Limits, rates and dates change by notification — confirm the position for your own year before acting on it.