Guides & glossary for shop owners

What Is a POS System?

A POS (point-of-sale) system is the tool you use to ring up a sale, take payment and record what you sold, the moment a customer buys. Tukri is a mobile POS built for Bangladeshi shop owners that does this billing on your phone and also keeps live inventory, a per-customer বাকির খাতা (due book), installment (কিস্তি) sales and printable invoices in one app.

What Is বাকি? Selling on Credit in a Bangladeshi Shop

বাকি (baki) is the everyday practice of letting a customer take goods now and pay later, instead of paying cash at the counter — the backbone of trust between a দোকানদার and regular customers across Bangladesh. The risk is that paper notebooks lose track of who owes what, so Tukri — a mobile-first POS and বাকির খাতা (digital due book) for small shops — keeps a running per-customer balance with SMS, WhatsApp and tap-to-call reminders. This page explains what baki is, why it gets risky, and how a digital due book fixes it.

What Is Kisti (Installment Selling)?

Kisti is installment selling: a shop hands over a big-ticket item now in exchange for a down payment plus a series of scheduled payments collected over weeks or months. Tukri is a mobile POS and shop app for Bangladeshi shop owners with a dedicated কিস্তি module that records the down payment, builds the payment schedule, logs each collection, stores customer KYC, and keeps it all in a separate report — apart from your regular sales.

How to Track Customer Dues (বাকি) in Your Shop

To track customer dues, record every credit sale against the customer's name, keep one running balance per customer, and collect with timely reminders. Tukri is a mobile POS and digital বাকির খাতা (তালি খাতা) for small shops in Bangladesh that does all of this on your phone — logging each baki, totalling it per customer, and sending SMS or WhatsApp reminders with one tap.

How to Calculate Your Shop's Real Profit

To find your shop's real profit, take your sales revenue, subtract the cost of the goods you actually sold (COGS), then subtract your expenses — what's left is net profit. Tukri is a mobile POS, inventory and reporting app for small shops in Bangladesh whose profit & loss report does this automatically, using a per-sale cost snapshot so the profit number is the true one, not a guess.

How to Manage Shop Inventory (Stock) the Right Way

Managing shop inventory means recording your opening stock, tracking every in-and-out movement, setting low-stock alerts, valuing what's on the shelf, and (for perishables) selling earliest-expiry items first. Tukri is a mobile-first POS and inventory app for small shops in Bangladesh that keeps your stock live and accurate by appending an immutable movement history to every sale, purchase and adjustment, so the number on your phone always matches your shelf.

How to Run a Whole Shop From Your Phone

You can run a whole shop from a single phone with Tukri — a mobile-first POS, inventory, বাকির খাতা (due book), কিস্তি and invoicing app for small shop owners in Bangladesh. Billing, dues, stock, expenses and reports all live in one app that keeps working OFFLINE and syncs when the internet returns. Install it like a normal app and it runs well even on an inexpensive Android phone.

How to Manage Medicine Expiry in Your Pharmacy

To manage medicine expiry, receive each stock lot as a batch tagged with its own expiry date, always sell the earliest-expiry batch first (FEFO), and watch a near-expiry list so you can return or move stock before it is dead. Tukri is a mobile-first POS and inventory app for shop owners in Bangladesh whose batch & expiry tracking records an expiry date per lot, auto-picks the earliest-expiry batch at billing, and warns you about what is about to expire.