Ozydo Blog
Practical articles on GST invoices, billing best practices, cash flow management, and free tools — written for Indian freelancers and small businesses.
All Articles
A practical GST rate reference for Indian small businesses — 0%, 5%, 12%, 18%, and 28% slabs with real-world examples for common goods, services, and professions. Use Ozydo to apply rates automatically.
Invoice or estimate — which do you send and when? The difference between a quotation, proforma invoice, and a tax invoice matters for payment, GST compliance, and legal protection in India.
WhatsApp is how India does business. Here is how to send a professional GST invoice PDF on WhatsApp, include a UPI payment link, and get paid in minutes — using Ozydo for free.
Looking for the best free GST billing app in India? We compare Ozydo, Vyapar, Zoho Invoice, Tally, and Excel — features, pricing, offline support, and WhatsApp integration — so you can choose without wasting time on trials.
Cash flow problems are the #1 reason small businesses fail in India. Here is a practical system for freelancers and contractors to track payments, chase overdue invoices, and stay financially healthy.
GST registration is mandatory once your turnover crosses ₹20 lakh. Here is everything you need to know — eligibility, documents, the online registration process on the GST portal, and what to do after you get your GSTIN.
Billing clients shouldn't be harder than the actual job. Here is the best invoice app for electricians, plumbers, carpenters, painters, and contractors in India — create invoices on your phone at the job site and share on WhatsApp.
GST return filing is mandatory for all registered businesses. Here is a complete guide for Indian freelancers and small businesses — GSTR-1, GSTR-3B, due dates, penalties, and how to prepare your invoices for filing.
Need a free GST invoice template? Instead of struggling with Word or Excel, use Ozydo to generate a professional GST invoice online for free — with auto-calculated CGST/SGST, logo, UPI QR code, and instant PDF download.
E-invoicing under GST is mandatory for businesses above ₹5 crore turnover. Here is what it is, how the IRN and QR code work, who is currently exempt, and what small businesses need to know in 2026.
Running out of stock is expensive. Over-stocking ties up cash. Here's how to set up a simple, effective stock management system for your retail shop or trading business — including HSN codes, reorder levels, and auto-invoicing.
Vyapar costs ₹3,499/year and requires a download. Tally costs ₹18,000+. Ozydo Business gives you GST invoices, stock management, estimates, WhatsApp sharing, and UPI payments for ₹499/month — on your phone, no download needed.
HSN codes are mandatory on GST invoices for traders and retailers. A wrong or missing HSN code can block your client's ITC claim. Here's exactly how to find the right HSN code for your products and add it to every invoice.
Mobile se GST invoice banana ab bohot aasaan hai. Ozydo app se sirf 30 second mein professional GST bill banao, CGST/SGST auto-calculate karo, aur WhatsApp par client ko bhejo — bilkul free.
Mobile se bill banana ab bilkul aasaan hai. Koi Excel nahi, koi Word template nahi. Ozydo se 30 second mein professional bill banao, PDF download karo, WhatsApp par bhejo — free mein.
Compare the best free invoice generators in India. Ozydo creates professional GST invoices in 30 seconds — PDF export, WhatsApp share, UPI QR, offline mode. Completely free for Indian freelancers and small businesses.
Automated billing software for Indian small businesses doesn't have to cost ₹18,000/year. Ozydo automates GST calculation, payment reminders, invoice generation, and WhatsApp delivery — for free.
A complete guide to downloading GSTR-1 in the right format for Indian small businesses — filing deadlines, B2B vs B2C tables, mandatory columns, and one-click export with Ozydo.
Adding a payment link to your invoice is the single fastest way to cut payment delays. Here's how Ozydo's online invoice payment portal works for Indian businesses and their clients.
Stop re-entering invoices in Tally manually. This guide shows how to export sales voucher XML from Ozydo and import it into Tally Prime in minutes — with party ledgers, GST ledgers, and amounts all pre-mapped.
Digital signatures on invoices and estimates are legally valid in India under the IT Act 2000. Here's what you need to know about DSC vs e-signature, client approval, and scope dispute protection.
Your phone camera is already a barcode scanner. This guide shows how Indian small businesses can use it for free inventory management — scan to search, deduct stock, and eliminate manual entry errors.
Most small business owners know their bank balance but not their actual profit. A monthly business review covering 5 key numbers changes that — and Ozydo automates the entire report for you.
Refer a fellow business owner to Ozydo and both of you get 1 month of Pro free. Here's exactly how the referral program works, how to share your link, and how to track your rewards.
Vyapar is popular but costs ₹1,499–₹2,999/year. Ozydo is free forever for basic invoicing — no annual fee, no ads, GST-compliant invoices in 30 seconds. Here is an honest comparison of both apps for Indian small businesses.
A proforma invoice is a preliminary bill issued before a sale is confirmed — it is not a GST tax invoice and does not create a tax liability. Here is everything you need to know about proforma invoice format India, when to use one, and how it differs from a regular invoice.
If your annual turnover is below ₹20 lakh, you do not need to register for GST or charge it on your invoices. This guide explains what a non-GST invoice must include, when you cross the threshold, and how to create one free using Ozydo.
If you over-charged a client, need to cancel an invoice, or a customer returned goods — you issue a GST credit note. If you under-charged, you issue a debit note. Here is a complete guide to both documents, their formats, time limits, and how they appear in GSTR-1.
Unclear payment terms are the number one reason small businesses get paid late in India. Here is exactly what to write on your invoices — Net 15, Net 30, advance, milestone, and late fee clauses — to cut your average collection time by up to 30%.
Zoho Invoice is permanently free now — but it lacks WhatsApp PDF sharing, UPI QR codes on invoices, and Hindi language support. Ozydo is built specifically for Indian small businesses with all three. Here is an honest comparison.
SAC (Services Accounting Code) is the GST equivalent of HSN code but for services. Every service provider registered under GST must include the correct SAC code on their invoice. This guide lists SAC codes and GST rates for the most common services in India.
Exporting goods or services from India? You have two options under GST — export under LUT (zero-rated, no IGST charged) or export with IGST and claim a refund. This guide explains which option to choose, how to format your export invoice, and how to claim your IGST refund.
Doctors and clinics face a unique invoicing challenge — most clinical services are GST-exempt, but some procedures and medicines are taxable. This guide explains which SAC codes apply, how to issue correct invoices for both, and how to handle medicines on a clinic bill.
Tuition teachers and coaching centres often overlook proper billing — leading to payment disputes and compliance issues. This guide covers GST exemption rules for education, how to create professional fee receipts, track payments from multiple students, and send reminders on WhatsApp.
GSTR-3B is the most important monthly GST return for businesses in India. This step-by-step guide explains what GSTR-3B is, when to file, what figures go in each section, and how to file it on the GST portal without making costly mistakes.
Looking for a professional invoice template for India? Here's everything you need — what fields a template must have, why static Word/PDF templates fall short, and a smarter free alternative that auto-calculates GST and sends invoices on WhatsApp.
Whether you're a landlord billing a commercial tenant with GST, or a tenant needing a rent receipt for HRA exemption, this guide covers the exact rent invoice format India requires — and how to create one free in minutes.
Consultants, designers, CA professionals, and coaches — here's the complete guide to creating a GST invoice for services in India, including SAC codes, correct tax rates, mandatory fields, and a free service invoice maker.
The best mobile invoice app for India in 2026 should be free, work offline, generate GST-compliant invoices in seconds, and let you share on WhatsApp. Here's how the top apps compare — and why Ozydo wins for small businesses.
Contractors, labour suppliers, and construction businesses — here's the complete guide to creating a GST-compliant contractor invoice in India, with the right SAC codes, GST rates for construction services, and a free invoice tool built for the trade.
Free forever — no credit card, no downloads, works on your phone.
Get Started Free →