I opened a business in Israel and went looking for something to issue invoices with. What I found was a market where the parts that make a document legally valid are sold as an upgrade.
Slate is invoicing software for Israeli freelancers and small businesses. It issues tax invoices, receipts and credit notes that meet Israeli Tax Authority rules, including the allocation number now required on large invoices. Income and expenses are tracked as you go, so VAT and advance tax filings stop being a quarterly scramble. Free calculators estimate what you owe before you file. It runs in Hebrew and English, in the browser, nothing to install. Start at app.slate.co.il.