Tesco-style accounting risks well known in retail industry

(Repeats Tuesday item)

* All big listed supermarkets warned of reporting risks on supplier rebates

* Rules on rebate accounting well known

* Analysts say managers may have felt pressured to accelerate income recognition

By Tom Bergin

LONDON, Sept 23 (Reuters) - Tesco Plc's disclosure of huge accounting mistakes over contracts with its suppliers shocked industry analysts and executives, but not because they didn't realise the potential for disaster.

On the contrary, they assumed that everyone in retailing was fully aware of the risks involved in accounting for rebates paid by suppliers to Britain's biggest supermarket groups, thanks to auditors' warnings.

Therefore Tesco's revelation on Monday that it had overstated its profit forecast for the first half of the year by 250 million pounds ($409 million) came as a nasty surprise and wiped 2 billion pounds off its stock market value.

Auditors routinely list risks that companies may face, and this year they have raised the supplier rebates - which have become a major part of the grocery business - in a number of firms' accounts following a change in disclosure rules.

The auditors for all three of Britain's biggest publicly-quoted retailers - Tesco, Sainsbury's and Morrisons - told investors in their most recent annual reports that their businesses faced material risks regarding the reporting of the supplier rebates. Those at the smaller online retailer Ocado did likewise.

These cash payment or discount deals take many different forms, but suppliers typically offer them to the retailers in return for additional efforts to promote their products.

Accountants said that such disclosures by auditors reflected more the growing importance of the supplier rebates than worries that companies didn't know how to account for them. "The rules are pretty well established," said a senior auditor at one big accounting firm who asked not to be named.

Companies can even buy software packages to help to track, analyse and account for such payments.

Nevertheless, deciding how the rebates should be treated in accounts requires companies to exercise discretion, and therein lies the risk of the kind of trouble that has hit Tesco.

Companies don't publish how much they receive in payments from suppliers. But France's Carrefour, which vies with Tesco as the world's second largest supermarket group by revenue, said at the end of last year that it had over 1 billion euros (now $1.3 billion) in outstanding receivables from suppliers in relation to rebates and other commercial incentives.

One industry executive said that rebate programmes typically lasted less than six months so the actual payments - known as supplier or commercial income - for a group of Carrefour or Tesco's size could run to billions of pounds.