TaxFlex 35+ is a fast, offline-first invoice and billing app built from day one for businesses that bill across borders — with real GST, VAT, and Sales Tax rules for 35+ countries built right in. Create professional invoices, quotations, and bills in seconds, in the correct tax system and currency for whichever country you're billing — no sign-up, no subscription, no internet required.
35+ COUNTRIES, BUILT IN FROM DAY ONE
★ South Asia — India (GST), Pakistan, Bangladesh, Nepal, Sri Lanka (Sales Tax / VAT)
★ North America — United States (Sales Tax), Canada (GST/HST/PST), Mexico (VAT)
★ Europe — United Kingdom, Ireland, Germany, France, Italy, Spain, Netherlands, Switzerland, Turkey, Russia (VAT)
★ Middle East & Africa — UAE, Saudi Arabia, Egypt, Nigeria, Kenya, South Africa (VAT)
★ Asia-Pacific — Australia, New Zealand, Singapore (GST), Malaysia (SST), Indonesia, Thailand, Philippines, China, Japan (Consumption Tax), South Korea (VAT)
★ South America — Brazil
Every country comes with the correct tax system name, tax rate options, and currency symbol pre-loaded. Don't see your country, or rates change? Add or edit any country's tax rates yourself from Settings — no app update needed.
WHY TAXFLEX 35+?
★ Bill internationally with confidence — pick the client's country and TaxFlex 35+ automatically applies the right tax system and currency, so nothing gets mixed up between markets.
★ 100% offline invoicing — your business data, client list, and every invoice you create stay safely on your device. No account, no login, no internet needed to make an invoice.
★ Professional invoice PDFs — add your business logo and signature, pick from multiple invoice templates and page sizes (A4, Letter, A5), then print directly or share a ready-to-send PDF in one tap.
★ Built for GST businesses — optional Vehicle No. / Transporter / Mode of Transport section for e-way-bill-style invoices, plus HSN/SAC codes on every line item.
★ Powerful billing logic — per-item tax rates, two-level item discounts, an overall invoice discount, add/less adjustments, and automatic round-off — the same calculation flow accountants expect.
★ Smart item & client catalog — every item and client you type is remembered and auto-suggested next time, so repeat billing gets faster with every invoice.
★ Multi-currency by design — bill clients in their own local currency, with per-currency subtotals when you're tracking invoices across several countries at once.
★ Track every invoice — a searchable, date-filterable invoice list with running totals grouped by currency, plus print/share the whole list as a PDF.
★ Light & Dark mode — automatically follows your system theme, or lock it to Light or Dark from Settings.
WHO IS TAXFLEX 35+ FOR?
Freelancers, consultants, exporters, shopkeepers, traders, distributors, service providers, and small business owners who bill clients in one country or twenty — without learning complicated accounting software or paying a monthly subscription.
KEY FEATURES AT A GLANCE
• GST / VAT / Sales Tax invoice generator, pre-loaded for 35+ countries
• Custom tax rates & currencies — add your own country anytime
• Invoice, quotation & bill PDF export
• Print directly to any printer
• Share PDF via WhatsApp, Email, Drive & more
• Business logo & signature on every invoice
• Client & item catalog with auto-suggestions
• Multiple invoice templates & page sizes
• Discount1, Discount2, overall discount & round-off
• Transport / e-way-bill details for GST invoices
• Invoice history with date filters & currency-wise totals
• Light & Dark theme
• Works fully offline — your data never leaves your device
Download TaxFlex 35+ today and turn cross-border invoicing into a 60-second task — no accountant, no spreadsheet, no subscription required.
Have feedback or need a country added? We'd love to hear from you — contact details are on our Privacy Policy page linked in the app's Settings.
Invoice app for 35+ countries — GST, VAT, Sales Tax, multi-currency, offline