Tally 9 introduces several new features including Tally Payroll for India, multilingual support in Bahasa Melayu and Bahasa Indonesia, and statutory compliance for VAT in Indonesia, sales tax and service tax in Malaysia. It also includes numerous minor enhancements such as the ability to enter purchase invoices simultaneously in a multi-user environment, negative quantity warnings, exclusion of groups for payment/receipt vouchers, and staggered delivery tracking. Upgrades from Tally 8.1 require selecting the country and may involve recreating budgets.