Waves Bill: GST & VAT Invoice

Waves Bill turns your phone into a billing counter. Create a professional invoice in under a minute, send it on WhatsApp, and know exactly who still owes you.

Built for service businesses — painters, electricians, plumbers, contractors, interior fitters, cleaners, freelancers and small shops.

GST OR VAT, SET UP FOR YOU
Pick your country and the tax system, rate, currency and registration label are configured for you. India's CGST/SGST/IGST split, or single-rate VAT for the UAE, Saudi Arabia, Qatar, Oman, Bahrain, Kuwait, the UK, Germany, France, Singapore, Malaysia, Australia and Canada. 18 countries preset, every value still editable.

WORKS WITHOUT INTERNET
No account, no sign-up, no cloud. Your bills stay on your phone, so the app works on a site with no signal — and nobody, including us, can read your customer list.

WHAT YOU GET
• 20 invoice layouts — tax invoice, bill of supply, quotation, proforma, delivery challan, credit and debit notes
• Part payments and a running customer ledger
• Overdue tracking with daily reminders
• Quotations that become invoices in one tap
• Reusable work templates, so you stop retyping the same job
• Customers, sites, vendors and expenses
• Revenue reports, plus a GSTR-1 style summary for Indian filing
• Thermal receipt printing over Bluetooth or Wi-Fi (58/72/80 mm)
• PDF invoices with your logo, signature, bank details and a UPI QR code
• Local and Google Drive backups
• A home screen that tells you how the month is going, not just what it totalled

MORE THAN ONE LOCATION
Add a branch for each shop, yard or site office. Every branch prints its own address and tax number on its invoices, and either shares your invoice numbering or keeps a series of its own — which is what you need when two branches file under the same registration. Work in one branch at a time, or see the whole business at once.

24 LANGUAGES
Hindi, Tamil, Telugu, Malayalam, Kannada, Marathi, Bengali, Gujarati, Punjabi, Odia, Assamese, Urdu, Arabic, Spanish, Portuguese, French, German, Indonesian, Malay, Vietnamese, Thai, Filipino, Turkish and English. Arabic and Urdu mirror the entire interface.

17 CURRENCIES
Rupee, dirham, riyal, dinar, euro, pound, dollar and more, each with the digit grouping its region expects.

FREE
No subscription, no in-app purchases, no ads, and no feature locked behind a paywall.