Accruing interest on a dealer's stock finance

How a dealership estimates and journals the interest on its stock finance at month end, before the lender's statement arrives, and trues it up later.

By Achekam · 11 October 2026 · 5 min read · For Automotive businesses in South Africa, Nigeria, Kenya

A dealership that carries its showroom stock on a finance facility pays interest every day a vehicle sits unsold. The lender, though, sends its statement when it sends it: sometimes in the first week of the next month, sometimes well into the second. If the bookkeeper waits for that statement before recording anything, last month's management accounts show a profit that never carried its finance cost, and the following month carries two months of interest.

For a dealer whose margin on a vehicle can be eaten by a few slow weeks in stock, that distortion matters. It hides exactly the cost that tells you which vehicles are sitting too long. This article explains how to put the interest into the right month with an accrual, and how to tidy it up once the lender's figure lands.

Interest belongs to the month it runs

The accruals idea is simple: an expense belongs to the period in which it was incurred, not the period in which the paperwork arrives. AccountingTools uses this exact case as an example, listing interest owed on a loan before the lender's invoice arrives among the classic accruals, alongside wages earned before month end and goods delivered before the supplier's invoice. Investopedia's list of accrued expenses likewise includes interest on loans that has been incurred but not yet invoiced or paid.

For a dealership, the stock finance facility is usually the largest of these. Others worth checking at month end include interest on a workshop equipment loan, on a vehicle used as a demonstrator under finance, and on any overdraft charged in arrears.

Estimating before the statement arrives

You do not need the lender's statement to make a sound estimate. You need the facility agreement and your own stock records:

1. The balance. Take the amount drawn on the facility for each financed vehicle, and note when each was drawn and when each sale settled it.
2. The rate. Use the rate in the facility agreement, including any margin over the reference rate and any change notified during the month.
3. The days. Count the days each vehicle was financed within the month.
4. The fees. Add any fixed monthly charges the agreement specifies, such as an administration fee.

Multiply balance by rate by days for each vehicle, add them up, and that is your accrual. A dealer with many vehicles on the facility can do the same calculation on the average daily balance instead.

Investopedia notes that an accrued expense can be an estimate and may differ from the invoice that arrives later. That is expected. The goal is a figure close enough that the month's profit is meaningful, not one that matches the lender to the last cent.

Reversing entries, so it is not counted twice

Here is the trap. You accrue the interest at month end. In the next month the lender's statement arrives and someone records it as an expense in the ordinary way. Now the interest is in the books twice.

AccountingTools recommends recording most accruals as reversing entries, so that the accrual is cancelled in the following period when the actual invoice is recorded. The pattern, in words:

• End of month one: debit interest expense, credit accrued expenses, with the estimate.
• Start of month two: the mirror image: debit accrued expenses, credit interest expense, with the same amount.
• When the statement arrives in month two: record the lender's actual charge as interest expense in the ordinary way.

Month one carries the estimate. Month two carries the actual charge minus the estimate, which is the small difference between them, plus month two's own interest once that is accrued in turn.

Closing the month in Achekam

In Achekam, a business posts the accrual as a manual journal. A journal that does not balance is refused, and so is one dated in a closed month, so the accrual has to go in before the month is closed. A posted journal can only be corrected by a reversal, which keeps the audit trail intact: if the estimate was keyed wrongly, you reverse it and post it again rather than editing it.

Make the mirror-image journal a fixed step on your month-start checklist: post it as a manual journal dated in the new month, with a description that names the accrual it cancels, so anyone reading the ledger can pair the two.

Months can then be soft-closed, hard-closed and locked. A closed month refuses postings from every source, and reopening a hard close needs a second approver. Before closing, the screen checks the ledger balances and that no posting suggestions, unposted bills or unmatched bank lines are waiting. That makes a natural month-end order: post the accruals, clear the waiting items, then close.

The management accounts show an income statement for the chosen period beside the period before, and a balance sheet at period end, both added up from the business's own journals and exportable as PDF or CSV. With the accrual in place, finance cost appears in the month it belongs to, and the comparison with the previous month is fair. One detail to know: the year-to-date preset starts on 1 January rather than on the business's own year start.

Truing up when the statement lands

When the lender's statement arrives, compare it with your estimate before recording it. Differences usually come from one of a few places:

• a vehicle sold late in the month whose settlement reached the lender a day or two after you assumed;
• a rate change you missed;
• a fee the agreement allows that you did not include;
• a vehicle drawn on the facility that never reached your stock list.

The first three are worth noting so next month's estimate is better. The last is worth investigating properly, because a vehicle on the lender's records but not on yours is a stock question, not an interest question.

For keeping each financed vehicle visible while it sits, see used vehicles in stock, and if the facility is up for renewal, the cash forecast a bank wants covers what lenders ask to see. AccountingTools explains the accruals concept and why most accruals are best set up as reversing entries.

Once the routine is in place, it becomes a short monthly task, and the finance cost of slow stock stops hiding in the following month's figures.

General guidance only, not advice on your own circumstances. Tax and payroll rules change: check the current position with the authority or your adviser.