MOBITOSS GUIDES

Practical guides.
Written from real work.

What we have learned building accounting software for CA firms and small businesses, shipping web and mobile products for founders, putting AI to work, and making browser games, written up so it is useful to you.

GST & compliance

Plain-language guides to GST returns, notices, input tax credit and bookkeeping, for business owners and the CA firms who support them.

Bookkeeping for small shops: a 15-minute daily routine that makes GST and your CA easierA simple daily, weekly and monthly bookkeeping routine for shop owners and traders in India: recording sales by payment mode, capturing bills, tracking dues and stock, and keeping your accountant informed.5 min read GST return due dates explained: GSTR-1, GSTR-3B and the QRMP schemeA plain-language guide to monthly and quarterly GST return due dates in India, what each return contains, what late filing costs, and how to build a monthly routine that keeps you on time.7 min read How a CA firm can run monthly compliance for 50+ clients without chasingA practical operating model for chartered accountant firms: a single compliance calendar, clear ownership, monthly document requests, partner review and notice tracking, so filings go out on time across every client.5 min read Income tax intimation under section 143(1): how to read it and respondWhat a 143(1) intimation and a 143(1)(a) proposed adjustment mean, why the figures may differ from your return, how to respond on the e-filing portal within 30 days, and what changes under the Income-tax Act, 2025.5 min read Input tax credit made practical: purchase bills, GSTR-2B and the Invoice Management SystemHow input tax credit flows from your supplier's GSTR-1 to your GSTR-2B and GSTR-3B, how to use the Invoice Management System to accept, reject or hold invoices, and a monthly checklist to stop losing credit.5 min read Received a GST scrutiny notice (ASMT-10)? What it means and how to replyWhat a GST scrutiny notice in Form ASMT-10 is, why it is issued, how to prepare a reply in ASMT-11 within 30 days, and what happens next. A calm, step-by-step guide for business owners.6 min read

Building products

How to plan, scope and build a first digital product, from deciding what goes in an MVP to choosing a platform and a team.

How to scope an MVP: deciding what your first release should (and shouldn't) doA practical method for founders to define a minimum viable product: start from one user and one problem, map the journey, cut features with a simple test, and plan what you will learn from the launch.5 min read Web app, mobile app or both? How to choose for your first productA clear comparison of web apps, native mobile apps, cross-platform apps and progressive web apps, with the questions that decide which one your product should start with.4 min read What to prepare before hiring a software development teamA founder's checklist for working with a development agency or freelance team: the brief, priorities, budget, ownership, communication and the questions to ask before you sign.4 min read

AI & automation

Practical, grounded advice on where AI saves time in a business, and how to make it accurate enough to rely on.

Automating bill and invoice entry with AI: how it works and how to keep it accurateHow AI document processing reads purchase bills and invoices from phone photos and PDFs, the fields it extracts, why validation matters more than the model, and how to design a review step that catches errors.5 min read Practical AI for small businesses: where it helps, where it doesn't, and how to startA grounded guide to using AI in a small or mid-sized business: the tasks it handles well, the ones to keep human, how to run a low-risk pilot, and how to judge whether it is working.4 min read

Games

Notes from designing and building the browser games in the Mobitoss arcade.

Building HTML5 games that run well on phones: a practical checklistPractical techniques for making browser games fast and comfortable on mobile: loading quickly, keeping a steady frame rate, handling touch input, scaling to any screen and dealing with audio, battery and interruptions.4 min read Designing one-touch browser games: lessons from building the Mobitoss arcadeWhat we have learned designing simple browser games that work with a single tap or swipe: one clear verb, readable rules, fair difficulty, instant restarts and short sessions that still feel satisfying.4 min read

Guides on tax and compliance are general information, not professional advice. Rules change, so confirm details with the official portals or your chartered accountant before acting.