---
title: "Accounts Receivable Management: Mastering DSO and Collections for SMBs"
description: "Master accounts receivable for your small business — calculate DSO, build an ageing report, design a dunning process, and hit cash flow benchmarks."
canonical_url: "https://billbabu.com/blog/accounts-receivable-management-dso"
markdown_url: "https://billbabu.com/blog/accounts-receivable-management-dso.md"
type: "blog-post"
language: "en-IN"
published: "2026-05-16"
last_updated: "2026-10-08"
author: "BillBabu Team"
category: "Business Growth"
tags: ["accounts receivable", "DSO", "collections", "cash flow", "ageing"]
site: "BillBabu (https://billbabu.com)"
---
# Accounts Receivable Management: Mastering DSO and Collections for SMBs

By BillBabu Team · Published 16 May 2026 · Updated 8 October 2026 · Category: Business Growth

Master accounts receivable for your small business — calculate DSO, build an ageing report, design a dunning process, and hit cash flow benchmarks.

## Why AR Management is the #1 Cash Flow Lever

For most Indian SMBs, accounts receivable (AR) is the single largest current asset on the balance sheet — and the slowest to convert into cash. Every extra day of receivables ties up working capital that could fund inventory, salaries, or expansion. Reducing average collection period by even 10 days can free up lakhs of rupees, often eliminating the need for an additional CC facility. Yet, very few small businesses systematically track and improve AR — they react to cash crunches instead of preventing them.

## Calculating Days Sales Outstanding (DSO)

DSO measures how many days, on average, it takes to collect payment after a sale. The formula is: (Total Receivables / Total Credit Sales) x Number of Days in Period. For example, if you have Rs. 30 lakh in receivables and Rs. 90 lakh in quarterly credit sales, DSO is (30/90) x 90 = 30 days. Compare your DSO against your stated payment terms — if you give 30-day credit but DSO is 55 days, you have a 25-day collection gap. Industry benchmarks vary: services typically run 45-60 days, retail trade 15-30 days, manufacturing 60-90 days.

## Building an Ageing Report

An ageing report buckets unpaid invoices by how long they have been outstanding — typically 0-30 days, 31-60, 61-90, and 90+. The 90+ bucket is your danger zone, where the probability of recovery drops sharply. Use the report to prioritise collection calls: focus on the largest invoices in the 30-60 day bucket first, since these are still fresh and recoverable. Track the percentage of receivables in each bucket month-over-month — a rising 60+ percentage is an early warning sign of customer stress or sales-team over-promising.

## Designing a Dunning Process

A dunning process is the systematic series of reminders and escalations sent to overdue customers. A good schedule looks like: gentle WhatsApp/email reminder at day 0 (invoice generation), polite follow-up at day 15, firm reminder with statement of account at day 31, phone call at day 45, formal demand letter at day 60, and legal/MSME Samadhaan filing at day 90. Stick to the schedule mechanically — research shows businesses with formal dunning collect 25-40% faster than those who chase ad-hoc.

## Automate AR Tracking with BillBabu

BillBabu generates ageing reports out of the box, broken down by party and invoice age bucket. You can see which customers owe what, send invoice reminders via WhatsApp or email directly from the dashboard, and attach payment links so customers pay in one tap. The party-wise outstanding view also helps you decide credit limits and identify chronic late payers. Combined with the MSMED Act 45-day rule, this is the foundation of a healthy cash conversion cycle.

**Built for Indian small businesses.** BillBabu is GST-compliant billing software that helps you create invoices, manage estimates, track payments and stay audit-ready — from your phone. [Learn more about BillBabu](https://billbabu.com/) or [download the app](https://play.google.com/store/apps/details?id=com.billbabu.app).

## Related guides

- [Key Performance Indicators (KPIs) Every Small Business Should Track](https://billbabu.com/blog/kpis-small-business-india): The essential KPIs Indian SMBs should track — sales (CAC, LTV), finance (gross margin, runway), and operations (cycle time, on-time delivery).
- [Annual Budget Planning for Small Businesses: A Step-by-Step Framework](https://billbabu.com/blog/annual-budget-planning-small-business): Build an annual budget for your small business in five clear steps — revenue forecast, opex, capex, financing, and monthly variance review.
- [How to Write a Business Plan for an Indian Small Business: Templates Included](https://billbabu.com/blog/business-plan-small-business-india): A practical guide to writing a business plan for Indian SMBs — one-pager format, financials, market analysis, operations, and a downloadable template.

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