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Shelf guide · Owner's Money

11 money habits that keep a small business out of trouble

Numbers, cash, collections, margins, GST, loans: one habit from each book on the Owner's Money Shelf.

Know Your Numbers cover
General guidance, as of 2026Rules on GST, tax, loans and company law change. These books explain how things work; check the current rules with your CA or lawyer before you act.

Each section names the problem, the idea in one line, what you will be able to do, and the method from the book.

Book 1 · Know Your Numbers

1. Your P&L, read as an owner

The problem: You know your sales, but not your profit or your cash.

Read the profit and loss account from the top in the owner's order: what you sold, what you kept, what your overheads took, and what was left.

By the end of the chapter you can:

  • Rewrite your P&L in the owner's order on one page
  • Find your gross margin by product line
  • Spot the four most common misreadings
The method

Gross margin: the first number to protect

Gross profit is sales minus the cost of the goods you sold. For a trader, that cost is mainly purchases. For a manufacturer it includes materials, factory labour and power. For a service firm it is the direct cost of delivering the work, such as project staff or subcontractors.

Gross margin is gross profit as a share of sales. It is the first number to watch, because every overhead, every loan and every rupee of your profit has to be paid out of it.

Kaveri's product linesSalesGross marginGross profit
Steel utensils₹240 lakh20%₹48 lakh
Non-stick cookware₹150 lakh26%₹39 lakh
Pressure cookers₹120 lakh18%₹21.6 lakh
Small appliances₹90 lakh26%₹23.4 lakh
Total₹600 lakh22%₹132 lakh

The blended 22% hides a wide range. Selling ₹10 lakh more non-stick cookware adds ₹2.6 lakh of gross profit; selling ₹10 lakh more pressure cookers adds only ₹1.8 lakh. That is why the mix of what you sell matters as much as the total.

More in Know Your Numbers →

Book 2 · Books in Order

2. Set it up once

The problem: Your accounts are always behind, or nobody checks them.

Most bookkeeping problems start with a poor set-up. Get three things right once, and the daily work becomes simple.

By the end of the chapter you can:

  • Design a list of accounts that gives you useful reports
  • Organise your bank accounts by purpose
  • Draw the document flow for purchases and sales
The method

Bank accounts that do one job each

Many small businesses run everything through one current account, with personal spending mixed in. A few accounts, each with a clear job, make the books simpler and the cash easier to read.

AccountJobWhy it helps
Main collections accountAll customer receipts: UPI, card settlements, platform payouts, chequesOne place to match every rupee received
Payments accountSuppliers, salaries, rent; topped up from collectionsSpending is visible and controllable
Tax reserve accountGST and TDS collected, moved here weekly until paidYou never spend money that belongs to the government
Cash credit or overdraftWorking capital borrowing onlyBorrowing does not hide inside daily banking
Owner's personal accountOwner's salary and drawings onlyBusiness and personal stay apart

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Book 3 · Never Short of Cash

3. Your cash cycle in days: stock, customers, suppliers

The problem: Salaries and supplier payments worry you every month.

The cash cycle is the number of days your money is stuck between paying for materials and being paid by customers. Every day you cut frees cash; every day you add costs it.

By the end of the chapter you can:

  • Work out stock, debtor and supplier days
  • Put a rupee value on each day of your cycle
  • Choose where to shorten the cycle first
The method

Working out your days

You need four figures from your accounts: yearly sales, yearly purchases (or cost of goods), and the closing balances of stock, debtors and suppliers. Use averages if your balances swing through the year.

DaysFormulaSutlej
Debtor daysDebtors ÷ yearly sales × 365₹296 lakh ÷ ₹1,200 lakh × 365 = 90
Stock daysStock ÷ yearly materials and other direct costs × 365₹72 lakh ÷ ₹660 lakh × 365 = 40
Supplier daysSuppliers ÷ yearly purchases × 365₹54 lakh ÷ ₹660 lakh × 365 = 30
Cash cycleStock days + debtor days − supplier days40 + 90 − 30 = 100 days

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Book 4 · Paid on Time

4. Who gets credit, and how much

The problem: Customers owe you more than you can afford to wait for.

Credit is a loan you make to a customer. Decide it the way a careful lender would: check first, set a limit, and review it.

By the end of the chapter you can:

  • Check a new business customer in under an hour
  • Grade customers and set credit limits
  • Choose terms that match the risk
The method

Checking a new customer

A good check takes less than an hour and uses information that is freely available, or that the customer will give you if asked.

CheckWhere to find itWhat to look for
Who they areGST registration details; company or LLP records if registeredLegal name, address and age match what you were told
GST filing recordThe public GST search for their registrationReturns filed regularly
Company filingsThe government's company records for companies and LLPsAccounts filed on time; loans secured on their assets
Trade referencesTwo or three of their suppliersHow fast they pay; any disputes
Credit reportA business credit report from a credit bureau, with consentDefaults, overdue loans
A visitTheir premisesActivity, stock, staff: does it look like the business described?

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Book 5 · Profit Leaks

5. Your real cost per product

The problem: You're busy all year, and little is left at the end.

You cannot know which products, jobs or clients make money until you know what each one really costs, including the costs that do not appear on the bill of materials.

By the end of the chapter you can:

  • Build a unit cost that includes every variable cost
  • Cost a job or client in time and rupees
  • Share overheads without distorting decisions
The method

Costing a product

Work from a standard batch or recipe, then add every variable cost per unit. Use real figures from the last few months, not the figures you hope for.

  1. Write the recipe or bill of materials. Quantities for a standard batch, including what is lost in processing.
  2. Price each input at today's cost. The latest purchase price, including freight in and taxes you cannot claim back.
  3. Divide by the good output. Not the theoretical output: what actually comes out sellable.
  4. Add packing and any variable labour per unit. From your last month's consumption.
  5. Add channel, freight, returns and payment costs per unit. Different for each channel; cost each separately.
  6. Compare with the price you actually receive. After discounts and schemes, not the list price.

More in Profit Leaks →

Book 6 · Growth You Can Afford

6. What each unit really earns

The problem: You're about to expand, hire or take a big order.

Growth is a multiplication: more customers, orders or outlets, each earning the same. If one unit earns little, more of them earns little more, and needs more cash.

By the end of the chapter you can:

  • Choose the right unit for your business
  • Work out the contribution and cash need per unit
  • Compare channels and customers on the same basis
The method

Contribution per unit

Start with contribution: the price received, less every cost that rises with the unit. Then add the costs that come only with winning and serving that unit.

Vastra Craft: one kurta for a fashion brandPer piece% of price
Price received from the brand₹480100%
Fabric and trims₹21645%
Stitching (piece rate)₹8618%
Packing and freight₹194%
Agent commission and other variable costs₹245%
Contribution per piece₹13528%

An order of 2,000 pieces earns ₹2.7 lakh of contribution. Against that sit the costs that come with the order: samples, pattern making, fit sessions, and the cash tied up until the brand pays.

More in Growth You Can Afford →

Book 7 · GST Without Guesswork

7. Registration and schemes

The problem: GST feels like a monthly mystery, or it eats your cash.

Whether to register, and under which scheme, depends on who your customers are and how you sell, not only on your turnover.

By the end of the chapter you can:

  • Know the questions that decide registration
  • Compare the regular and composition schemes
  • Decide, with your CA, which suits your business
The method

Regular scheme or composition scheme

Smaller businesses may be able to choose a simpler composition scheme: tax paid as a small fixed percentage of turnover, fewer returns, but important restrictions. Whether it pays depends on who your customers are.

Regular schemeComposition scheme
Who can use itAny registered businessSmaller businesses within a turnover limit, with exclusions
Tax paidOutput tax less input creditA fixed percentage of turnover
Input tax creditAvailableNot available
Charge GST to customersYesNo: customers cannot claim credit
Interstate salesAllowedGenerally restricted
ReturnsMore frequent and detailedSimpler

More in GST Without Guesswork →

Book 8 · Tax-Ready All Year

8. Expenses that count

The problem: Tax time brings panic, surprises or notices.

An expense reduces your tax only if it is for the business, allowed by law, and backed by records. The records are the part owners most often neglect.

By the end of the chapter you can:

  • Apply the tests for a deductible business expense
  • Avoid the most common disallowances
  • Keep evidence that stands up to questions
The method

Payments in cash

The tax law discourages large cash transactions in several ways. Limits change, and they apply to payments and to receipts, so ask your CA for the current figures and build them into your rules.

Cash rule (in outline)Effect
Expenses paid in cash above a daily limit to one personThe expense can be disallowed
Receiving cash above a limit from one person in a day or transactionCan attract a penalty equal to the amount
Cash loans and deposits above a limitCan attract penalties
Cash withdrawals above limitsTDS may apply on the withdrawal
Large cash depositsReported to the tax department; may lead to questions

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Book 9 · The Right Structure

9. Sole proprietorship

The problem: Your business has outgrown its legal form, or partners disagree.

A proprietorship is the simplest way to run a business, because the business and the owner are the same person. That same fact is its main weakness once the business grows.

By the end of the chapter you can:

  • Explain how a proprietorship works in law and tax
  • Recognise when it has been outgrown
  • Protect a proprietorship while it suits you
The method

Where it stops working

These signals suggest a proprietorship has been outgrown. Two or more together are a reason to review structure with your advisers.

SignalWhy it matters
Large personal guarantees and security for business debtsFamily wealth is fully exposed
Others want to own a share: children, staff, partners, investorsA proprietorship cannot have co-owners
Large contracts or customers ask for a companySome buyers and tenders prefer or require one
Higher-risk activity: products, projects, liability claimsClaims fall on the owner personally
Profit high enough that a different form may be more tax-efficientWorth a CA's comparison
No plan if the owner dies or cannot workThe business may stall while heirs sort out the estate

More in The Right Structure →

Book 10 · Borrow Smart

10. The loan menu

The problem: You need a loan, or your loan terms worry you.

Each type of loan is built for a particular need. Using the right one is often cheaper and always safer than stretching the wrong one.

By the end of the chapter you can:

  • Describe the main business loan products
  • Match each need to the right product
  • Spot when a product is being misused
The method

Term loans

Term loans fund long-term assets and are repaid in instalments over several years. The repayment schedule should match the life and earnings of what they fund.

FeatureWhat to look for
TenureLong enough that EMIs fit the asset's earnings; not longer than its useful life
MoratoriumA period before repayments start, for assets that take time to earn
RateFixed or floating; linked to a benchmark plus a spread
SecurityUsually the asset financed, sometimes more
PrepaymentWhether you can repay early, and at what charge

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Book 11 · Raise the Right Money

11. Who invests

The problem: You're thinking of bringing in an investor, or listing.

Investors differ in what they want, how long they stay and how involved they become. Choose the investor as carefully as the price.

By the end of the chapter you can:

  • Describe the main kinds of equity investor
  • Match investor types to your plan
  • Check an investor before you sign
The method

What each wants

Understanding what an investor needs makes negotiations easier and the relationship smoother. Ask each investor directly; good ones answer openly.

Question to askWhy it matters
How long do you usually stay invested?Tells you when they will want an exit
How do you usually exit?Listing, sale to another investor, sale of the company, buyback
What role do you take?Board seat, monthly reviews, hiring support, or hands-off
What rights do you usually ask for?A preview of the term sheet (Chapter 6)
Can we speak to owners you have invested in?Including ones where things went badly
Will you invest more later?Whether they can support the next round

More in Raise the Right Money →

This article is adapted from the book. Examples marked “Example” use invented names and numbers; company stories are based on public sources listed in the book. Education only: not investment, tax or legal advice.