Articles
Written to be useful, and to be checked.
Three kinds of article, nothing else: what things cost in Sri Lanka, how the rules a business runs under actually work on an invoice, and comparisons made at the moment of buying. Each one carries a date and is corrected when the facts change.
POS systems for a Sri Lankan shop, compared (2026)
Cash register and exercise book, tablet apps built abroad, a global ERP, a local desktop program, or a cloud system built for Sri Lanka: what each one actually gives a shop, judged on power cuts, LKR and VAT, Sinhala and Tamil, stock and accounts.
How 18% VAT is calculated on a Sri Lankan invoice, with worked examples
Adding VAT to a net price, taking it out of an inclusive price, rounding line by line, mixed baskets with exempt items, and what a tax invoice has to show — with the arithmetic written out.