NISM Series X-A · Chapter 4: Debt Management and Loans

L1 · Foundation

Foundation — Why debt exists, its role in cash flow, and the counselling framework

The purpose of debt and when it is good, the debt-to-income ratio, consumption versus investment expenditure, holes in the household budget, windfalls, the four counselling factors of purpose, cost, maturity and rescheduling, and credit bureaus and credit scores.

15 min read · Worth 6% of the paper · Written from pages 64–88 of the official NISM workbook · Updated 18 September 2026

4.1 The purpose or need of debt

"Debt is used to FINANCE GOALS WHEN AVAILABLE FUNDS (self-funding) ARE INADEQUATE. Even though income might be higher than expenses it is NOT POSSIBLE to finance EVERY purchase or asset with just the existing savings."

"most people CANNOT BUY A HOUSE WITHOUT A LOAN. This is because the cost of a house is HUGE and if people waited till they had enough savings it is likely that this would NOT BE POSSIBLE TILL THEY NEAR RETIREMENT. Lenders protect themselves by securing their loan against a CHARGE or SECURITY or PLEDGE or MORTGAGE on the property. Such loans are also called MORTGAGES."

"Debt comes at a COST and imposes a REPAYMENT OBLIGATION. The decision on whether or not to use debt will depend upon the ABILITY OF THE AVAILABLE INCOME TO BEAR THE ADDITIONAL CHARGE of interest cost and repayment."

When debt is good

"debt for ACQUISITION OF HOUSE PROPERTY IS NOT BAD"
"In some cases, the decision to use BORROWED FUNDS OVER OWN FUNDS, also called LEVERAGE, MAY ACTUALLY INCREASE THE RETURN made on an investment (MODIGLIANI-MILLER THEOREM (M&M))"
"an EDUCATION LOAN may be a BETTER CHOICE than DRAWING FROM A RETIREMENT ACCOUNT to fund the children's education. The FUTURE INCOME would be easily able to repay the loan and at the same time the EXISTING FUNDS CAN CONTINUE TO EARN WITHOUT LOSING THE BENEFIT OF COMPOUNDING. CONTINUATION OF EXISTING INVESTMENTS IS IMPORTANT, TO MAINTAIN THE COMPOUNDING EFFECT."
"sometimes it can be also for TEMPORARY USE OF FUNDS. This kind of short-term need might arise due to some EMERGENCY or some CASH FLOW MISMATCH but it can ensure that an individual is able to continue on their life path WITHOUT FACING SUDDEN DISRUPTIONS"

4.2 The role and impact of debt in cash flow management

"how much debt is good DEPENDS UPON THE FINANCIAL SITUATION OF EACH HOUSEHOLD. A good indicator is the DEBT-TO-INCOME RATIO (DTI)... There is NO 'PERFECT OR OPTIMAL' DTI ratio that lenders require, but ALL LENDERS TEND TO AGREE THAT A LOWER DTI IS BETTER. Depending on the SIZE AND TYPE OF LOAN they're issuing, LENDERS SET THEIR OWN LIMITS."

The worked illustration: "a salaried employee who draws a salary of Rs 15,000 per month, and is paying Rs 7,500 towards debt servicing. The debt servicing ratio comes to 7,500 ÷ 15,000 i.e. 50 per cent. THIS IS TOO HIGH. If 50 per cent goes towards debt servicing, it affects the ability to MEET OTHER REGULAR EXPENSES, PROVIDE FOR EMERGENCIES and the person MAY HAVE NOTHING LEFT TO INVEST FOR THE FUTURE."

"A HIGHER INTEREST RATE will RAISE the repayment amount... and similarly a HIGHER LOAN AMOUNT will also INCREASE the monthly repayment."

"the DEBT SERVICING AMOUNT NEEDS TO BE LOW SO THAT THERE IS SCOPE FOR RAISING SOME MORE FUNDS IN CASE THIS IS REQUIRED" — because "a CRISIS ON SOME OTHER FRONT can leave LITTLE ROOM FOR BORROWING SOME MORE amounts to tide over it."

4.2.1 Consumption versus investment expenditure

	Definition	Examples
Consumption expenditure	"that amount which ONCE USED DOES NOT CREATE ANY ASSET THAT GENERATES FURTHER INCOME"	"amount spent at a RESTAURANT or for BUYING CLOTHES or expenses made at a SALOON"
Investment expenditure	"will LEAD TO THE CREATION OF AN ASSET, which then can GENERATE FURTHER INCOME in the future"	"buying a BOND or a PROPERTY"

"Some outflows, like PROVIDING EDUCATION TO CHILDREN, MAY APPEAR TO BE CONSUMPTION EXPENDITURE. BUT THEY MAY BE A USEFUL INVESTMENT, IF THE CHILDREN DO WELL AND ARE ABLE TO RAISE THE FAMILY'S INCOME. Such expenditure needs to be PRIORITIZED."

"ALLOCATE SAVINGS FOR GOALS BEFORE CONSIDERING THE DISCRETIONARY EXPENSES. This will make sure that the future needs are taken care of. Systematic Investment Plans (SIPs), especially when AUTOMATICALLY TRANSFERRED FROM THE SALARY, help in PRIORITIZING THE INVESTMENT EXPENDITURE."

4.2.2 Identifying the holes in the household budget

"Some COMMON ERRORS that make it seem as if savings are not possible":

"not being CLEAR IF AN EXPENSE IS AN ESSENTIAL LIVING EXPENSE OR DISCRETIONARY in nature"
"INCORRECT (HIGHER) ALLOCATION for expenses"
"not 'PAYING SELF' BEFORE allocating for discretionary expenses"
"not TRACKING EXPENSES REGULARLY and hence GOING OVER-BUDGET"

"The adviser should inculcate the habit in the client, to NOTE DOWN ALL EXPENSES ABOVE A SPECIFIC LEVEL. The limit may be Rs 500 for some clients; Rs 5,000 for some others. The actual figure would DEPEND ON THE INCOME LEVEL of the client."

"A SUMMARISATION of the list of expenses AT THE END OF THE MONTH CAN BE ENLIGHTENING, EVEN FOR THE CLIENT. For example, the amount that went in EATING OUT OR ENTERTAINMENT might be pretty high but this might NOT REGISTER for the client BECAUSE ALL PAYMENTS WERE MADE BY CREDIT CARD so this was not actually tracked. When the client recognises the SCALE OF THE LOST OPPORTUNITY TO SAVE, there is better likelihood of prudence in future."

"An adviser's PRIMARY ROLE is to IDENTIFY AND ELIMINATE THESE LACUNAE THAT INHIBIT SAVINGS."

The gadget example: "Spending on a gadget like a phone or a laptop is NECESSARY because it HELPS IN WORK AND INCREASES EFFICIENCY AND LEARNING. However CONSTANT UPGRADATION JUST SO THAT THEY HAVE THE LATEST MODEL TO SHOW OFF IS NOT A WISE WAY TO SPEND MONEY."

4.2.3 Allocation to categories of expenses

"If UNUSUAL expenses are KEPT OUT (for instance, a hospitalization that was NOT COVERED BY INSURANCE), the balance outflows can be categorized as MANDATORY contributions to provident fund and other retirement savings, LOAN SERVICING, ESSENTIAL expenses and LIFESTYLE expenses."

"An ESSENTIAL expense DOES NOT LEND ITSELF TO MUCH REDUCTION but LIFESTYLE expenses CAN BE CONTROLLED TO A LARGE EXTENT. CONSIDERING THE ALTERNATE USE to which the income can be used instead of spending it on discretionary expenses is one way in which such expenses can be controlled."

Zero base budgeting

"In corporate finance, there is a concept of 'ZERO BASE BUDGETING' which means, RATHER THAN TAKING THE PREVIOUS BUDGET AS THE REFERENCE POINT AND MODIFYING THE NUMBERS, TAKE IT FROM SCRATCH. In that case, EACH AND EVERY EXPENSE IS THOUGHT THROUGH, AND IS NOT INCURRED JUST BECAUSE IT WAS INCURRED EARLIER. THE CONCEPT CAN BE APPLIED IN HOUSEHOLD FINANCES AS WELL."

4.2.4 Windfalls

"Clients occasionally earn a windfall such as unexpectedly high ANNUAL BONUS, INHERITANCE, WINNING A LOTTERY."

"A HEALTHY PORTION of such unexpected income SHOULD BE SET APART FOR THE FUTURE, SINCE THE FAMILY IS USED TO LIVING WITHOUT THAT WINDFALL."
"This can also be the time to TAKE A LOOK AT THE OUTSTANDING LOANS AND CONSIDER PRE-PAYING some of them"
"Windfall gain NEED NOT BE INVESTED IMMEDIATELY, and can be DEPLOYED AS AND WHEN APPROPRIATE. The gain may be held in RISK FREE LIQUID ASSETS, till investment decision is reached."
"THE EXTENT OF THE WINDFALL MATTERS. A very high annual bonus can be used to PREPAY LOANS AND AT THE SAME TIME MAKE SOME ADDITIONAL INVESTMENTS"
"One should NOT EXPECT A WINDFALL TO OCCUR REGULARLY in the hope that this will save a bad financial situation, as this can ENCOURAGE WAYWARD FINANCIAL BEHAVIOUR and still end up with a HIGHER AMOUNT OF DEBT WHEN THE WINDFALL DOES NOT MATERIALISE."

4.3 Leverage and debt counselling — the four factors

4.3.1 Purpose of the debt

"Debt or loan should IDEALLY BE TAKEN FOR ACQUIRING APPRECIATING ASSETS SUCH AS REAL ESTATE"
"Some debt may be recommended to meet an expense that WILL INCREASE THE VALUE OF AN ASSET, say an EDUCATION LOAN TO UPSKILL, so that the INCOME GENERATING ABILITY of the person goes up"
"FINANCING RISKY OR VOLATILE INVESTMENT PROPOSITIONS WITH DEBT MAY ENTAIL HIGH RISK... MARGIN FINANCING for stock market investing is one such. A FALL IN THE VALUE of the investment WILL MAGNIFY THE LOSS since the COST OF DEBT WILL ALSO HAVE TO BE ACCOUNTED FOR"
"DEBT SHOULD CERTAINLY NOT BE USED FOR FINANCING ONE'S REGULAR EXPENSES. If a person starts borrowing to meet expenses, then he is CLEARLY LIVING BEYOND HIS MEANS and LIKELY TO BE IN A DEBT TRAP"
"Taking SHORT TERM DEBT to tide over TEMPORARY LIQUIDITY PROBLEMS MAY BE FINE, as long as the borrower KNOWS THE RISK AND HAS A PLAN TO REPAY the debt as soon as possible"

4.3.2 Cost of debt

"SECURED loans, such as MORTGAGES, and EDUCATION LOANS are RELATIVELY CHEAPER as there is the BENEFIT OF THE SECURITY available to the lender. UNSECURED loans such as PERSONAL LOANS AND CREDIT CARD DEBT are VERY EXPENSIVE and must be used with caution."

"Credit card is an INTEREST FREE BORROWING OPTION ONLY IF the use is WITHIN THE LIMITS specified, and the REPAYMENTS ARE MADE BY THE DUE DATE each month."

"A similar argument can be made for loans from the UNORGANIZED SECTOR like PAWN TRADERS OR MONEY LENDERS who charge as high as 60–80 per cent interest rate OR 5 PER CENT A MONTH."

4.3.3 Maturity of debt

"SHORTER the tenor of the loan; MORE will be the periodic repayment PUTTING PRESSURE on available income. EVEN IF THE COST OF DEBT IS LOW, SHORT LOAN TENOR CAN PUT FINANCIAL PRESSURES."

"A LONGER TENOR LOAN TRANSLATES INTO HIGHER INTEREST PAID OVER THE TERM. The DEBT-TO-INCOME RATIO can be used as an indicator of what the household income can take on as repayment obligations, and DECIDE ON THE TENOR ACCORDINGLY."

4.3.4 Debt rescheduling — the five solutions

"RANK DEBT IN ORDER OF THEIR COST AND DEAL WITH THE COSTLIEST DEBT FIRST. Typically, credit card dues and personal loans will be the most expensive... LOW-COST DEBT AND DEBT THAT PROVIDE TAX BENEFITS SUCH AS HOME LOANS AND EDUCATION LOANS CAN BE DEALT WITH LATER"
"If the debt was taken for PURCHASING AN ASSET, then the ASSET CAN BE SOLD and the proceeds used for PRE-PAYING the debt PROVIDED THE ASSET HAS A REASONABLE REALISABLE VALUE. While doing this, the borrower should also PLAN FOR ANY PRE-PAYMENT CHARGES that the bank may levy"
"If the cost of debt is high, then CHEAPER RE-FINANCING is an option. A lower cost loan can be availed to repay the costlier loan. A CREDIT CARD BALANCE TRANSFER is an example"
"If the problem is with the TENOR, then the possibility of EXTENDING THE TENOR can be explored. This will REDUCE THE MONTHLY OUTGO. HOWEVER, the loan will be repaid over a LONGER PERIOD and the TOTAL INTEREST PAID OVER THE TENOR WILL GO UP"
"If none of these is possible, then the borrower should INFORM THE LENDER about the problem and explore a REVISED LOAN SCHEDULE. It should however be noted that SUCH RE-SCHEDULING OF LOANS HURTS THE BORROWER'S CREDIT HISTORY (also known as credit score like CIBIL score). This will AFFECT THE CHANCES OF OBTAINING LOANS IN FUTURE OR THE COST at which they will become available"

4.4.1 Credit bureaus and credit score

"Credit score is a NUMBER ASSIGNED TO EACH INDIVIDUAL by a CREDIT INFORMATION BUREAU based on their CREDIT BEHAVIOUR AND REPAYMENT HISTORY. A credit bureau is LICENCED BY THE RBI and governed by the CREDIT INFORMATION COMPANIES (REGULATION) ACT, 2005."

What is assessed: "OUTSTANDING LOANS AND CREDIT FACILITIES USED, REPAYMENT BEHAVIOUR exhibited, UTILIZATION OF CREDIT LIMITS, TYPE OF LOANS i.e. the PROPORTION OF CREDIT CARD OUTSTANDING, PERSONAL LOANS AND OTHER UNSECURED LOANS, and other factors."

"This information is reported ON A MONTHLY BASIS by providers of loans and credit to the credit information companies."

"BANKS, HOUSING FINANCE COMPANIES, NBFCs use this score and report for making decisions on a loan application to determine INTEREST RATE, LOAN ELIGIBILITY AND CREDIT LIMITS."

Building a good score

"ALWAYS PAY DUES on loans, credit cards and others ON TIME"
"CREDIT UTILIZATION RELATIVE TO CREDIT AVAILABLE SHOULD BE KEPT LOW"
"TOO MUCH OF UNSECURED LOANS such as credit cards or HIGH UTILIZATION on your credit card limits and personal loans have a NEGATIVE IMPACT"
"it is important to have a MIX OF SECURED AND UNSECURED CREDIT"
"APPLY FOR CREDIT, OR MAKE CREDIT ENQUIRIES ONLY WHEN REQUIRED, AND IN MODERATION"
"A person's credit score is ALSO AFFECTED BY THE REPAYMENT BEHAVIOUR IN LOANS WHERE THEY ARE JOINT HOLDERS OR GUARANTORS"
"REVIEW THE CREDIT REPORT PERIODICALLY so that ANY ERRORS CAN BE IDENTIFIED AND RECTIFIED"

RBI's regulation on free credit scores

"Every individual is entitled to a FREE COPY of their credit report EVERY YEAR FROM EACH CREDIT BUREAU... In India, you can access the same from CIBIL, EXPERIAN, CRIF HIGHMARK and EQUIFAX"
"The customer should get a FULL COPY of such a credit report WHICH IS THE SAME AS WHAT IS ACCESSED BY THE FINANCIAL INSTITUTIONS"
"The report should also ENABLE THE BORROWER TO RECTIFY THE MISTAKES like wrong info, loan closure if any"
"Typically, the report shows REPAYMENT HISTORY FOR LAST 2–3 YEARS"
"The year for this purpose is from JANUARY TO DECEMBER or a CALENDAR YEAR"
"The report can be accessed in ELECTRONIC FORMAT"
"given after the necessary checks for AUTHENTICATION of the individual is done like UID, PAN. Credit scoring reports are ALSO AVAILABLE FOR NON-INDIVIDUALS like companies"

A caution on access: "There is also a TIE-UP by the credit bureaus with various LOAN PROVIDERS... One has to be careful because one has to be SURE THAT THERE IS A GENUINE TIE UP and that this is NOT SOME ONLINE SCAM TARGETING PEOPLE FOR THEIR PERSONAL INFORMATION."

4.5 Responsible borrowing

"NEVER BORROW MORE THAN WHAT THEY CAN AFFORD. A lifestyle that is FLASHY might seem enchanting but there is a COST... if this is NOT SUSTAINABLE then it is BETTER TO NOT GO DOWN THAT PATH"
"buy ONLY THOSE THINGS FOR WHICH THEY CAN MAKE PAYMENTS"
"The BEST WAY TO USE A CREDIT CARD IS TO PAY OFF THE AMOUNTS BY THE DUE DATE AND NOT LEAVE ANY AMOUNT AS REVOLVING CREDIT"
"BORROW FOR ASSETS THAT ARE VALUE APPRECIATING IN NATURE"
"TOO MANY LOANS AT THE SAME TIME CAN MAKE DEBT SERVICING VERY DIFFICULT and hence this has to be avoided"

Think of it like this

Income minus savings equals expenses

The chapter puts the single most useful habit in personal finance into one line: "The approach of people should be, INSTEAD OF Income − Expenses = Savings i.e. SAVE ONLY AFTER EXPENSES, to make it INCOME − SAVINGS = EXPENSES i.e. SPEND AFTER SAVINGS." Same three quantities, same arithmetic — but in the first version savings is whatever survives the month, and in the second it is protected first. The mechanism it recommends is equally practical: SIPs automatically transferred from salary, so the decision is made once rather than thirty times a month.

3 per cent a month is 42.6 per cent a year

The chapter refuses to let the monthly rate disguise the annual one. "If a credit card company charges 3% p.m. as interest, the compounded annual cost is (1+3%)^12 − 1 i.e. 42.6%. GIVEN THE EXORBITANT COST, REVOLVING CREDIT SHOULD BE AVOIDED." Three per cent sounds small; nearly forty-three per cent does not. And the same trick appears in the informal sector, where money lenders charge "5 PER CENT A MONTH" — which compounds to roughly 80 per cent a year, exactly the range the chapter names.

The credit card hides the damage, which is why it does the damage

The chapter's explanation of budget "holes" contains a sharp psychological observation: the amount spent on eating out "might be pretty high but this might NOT REGISTER for the client BECAUSE ALL PAYMENTS WERE MADE BY CREDIT CARD so this was not actually tracked." Cash leaves a wallet visibly empty; a card leaves nothing visible until the statement arrives. The remedy is equally simple — note down every expense above a threshold, Rs 500 or Rs 5,000 depending on income, and read the summary at month end.

The education loan that protects your compounding

One of the chapter's best arguments for borrowing. Faced with funding a child's education, "an EDUCATION LOAN may be a BETTER CHOICE than DRAWING FROM A RETIREMENT ACCOUNT", because "the FUTURE INCOME would be easily able to repay the loan and at the same time the EXISTING FUNDS CAN CONTINUE TO EARN WITHOUT LOSING THE BENEFIT OF COMPOUNDING." Breaking a long-compounding corpus costs you not just the money withdrawn but every year of growth that money would have had. "CONTINUATION OF EXISTING INVESTMENTS IS IMPORTANT, TO MAINTAIN THE COMPOUNDING EFFECT."

Fifty per cent of Rs 15,000 leaves nothing

The DTI example is deliberately modest in scale, and that is what makes it bite. A salary of Rs 15,000 with Rs 7,500 of debt servicing is a ratio of 50 per cent, and the chapter is blunt: "THIS IS TOO HIGH." Half the income is committed before a single grocery bill, so it "affects the ability to MEET OTHER REGULAR EXPENSES, PROVIDE FOR EMERGENCIES" and leaves "NOTHING LEFT TO INVEST FOR THE FUTURE." And there is a second reason to keep DTI low that borrowers overlook: it preserves the capacity to borrow again when a genuine crisis arrives.

Zero base budgeting, brought home from the boardroom

The chapter lifts a corporate finance idea and hands it to households: "rather than taking the PREVIOUS BUDGET as the reference point and MODIFYING the numbers, TAKE IT FROM SCRATCH. In that case, EACH AND EVERY EXPENSE IS THOUGHT THROUGH, AND IS NOT INCURRED JUST BECAUSE IT WAS INCURRED EARLIER." Most household budgets are last year's budget plus inflation, which quietly protects every subscription, membership and habit that has outlived its purpose. Starting from zero forces each line to justify itself once a year.

The windfall is spendable precisely because you never had it

The chapter's reasoning on bonuses and inheritances is elegantly simple: "A HEALTHY PORTION of such unexpected income SHOULD BE SET APART FOR THE FUTURE, SINCE THE FAMILY IS USED TO LIVING WITHOUT THAT WINDFALL." No lifestyle adjustment is required to save it — the household has already proved it can live without it. Two further rules follow: it need not be invested immediately and may sit in "risk free liquid assets" until a decision is reached; and one must never count on windfalls recurring, which "can encourage wayward financial behaviour."

Rescheduling works, and it leaves a mark

The chapter gives five escape routes for a struggling borrower and is scrupulously honest about the last one. Talking to the lender and agreeing a revised schedule is legitimate and sometimes necessary — but "SUCH RE-SCHEDULING OF LOANS HURTS THE BORROWER'S CREDIT HISTORY (also known as credit score like CIBIL score). This will AFFECT THE CHANCES OF OBTAINING LOANS IN FUTURE OR THE COST at which they will become available." It is a real option with a real price, which is exactly why it is listed fifth, after ranking by cost, selling the asset, refinancing and extending the tenor.

Key terms in this chapter

Amortisation: Repaying borrowed capital over time through equal instalments. The EMI carries more interest early in the loan and more capital later.
Avalanche strategy: Repaying the loans with the highest interest rates first, to reduce the interest burden fastest. It can disappoint if the high-rate loans are small in absolute amount.
Blizzard strategy: Starting with the snowball method for the motivational boost, then switching to the avalanche method, so the costliest debt is not left standing.
Consumption expenditure: Spending which once used creates no asset that generates further income, such as restaurant meals, clothes or a salon visit.
Credit Information Companies (Regulation) Act, 2005: The Act governing credit bureaus, which are licensed by the RBI. Lenders report credit data monthly to these bureaus.
Credit score: A number assigned by a credit information bureau based on credit behaviour and repayment history. The CIBIL TransUnion Score is a three digit number from 300 to 900.
Debt rescheduling: Agreeing a revised loan schedule with the lender when nothing else works. It hurts the borrower's credit history and affects future loan availability and cost.
Debt to income ratio (DTI): The indicator of ability to meet debt obligations from available income. There is no perfect DTI, but lenders agree a lower one is better and set their own limits.
Debt trap: The state a person is likely to be in if they start borrowing to meet regular expenses, which means they are clearly living beyond their means.
Fixed rate loan: A loan whose interest rate is fixed for the entire duration, letting the borrower know the exact cost. Useful when rates are low and the borrower wants to lock them in.
Floating rate loan: A loan whose rate resets periodically with a benchmark, external such as the repo rate or internal such as MCLR. Preferred for long term loans when rates are expected to fall.
Hire purchase: Buying an asset through an initial payment followed by instalments, where the buyer becomes the owner once the final instalment is paid.
Home equity loan: Also called a loan against property. The borrower uses a home or other real estate as collateral to raise money for any purpose.
Hypothecation: A charge created against an asset that remains WITH THE BORROWER. On default the lender must first take possession and then sell. A car loan is the best example.
Investment expenditure: Spending that leads to the creation of an asset which can generate future income, such as buying a bond or a property.
Lease: A contract where the lessor lets the lessee use an asset for a period against lease payments. The lessor remains the owner and the lessee never becomes owner, even after the lease ends.
Margin financing: Borrowing to invest in the stock market. A fall in value magnifies the loss because the cost of debt must also be accounted for.
Moratorium: A temporary pause in repayments due to force majeure. No default is counted and the credit score is unaffected, but interest continues to accrue and missed EMIs must be repaid with that additional interest.
Mortgage: A debt instrument backed by a specified property, repaid over a set period through regular payments. A home loan secured by the property is a mortgage, and the security is immovable.
Overdraft: A facility allowing an account holder to draw beyond the balance up to a sanctioned limit, usually against a fixed deposit or other security, with interest charged only for the period overdrawn.
P2P loan: Peer to peer lending where one individual lends directly to another through a platform. It is unsecured, carries only a basic background check, and involves high rates on low amounts over short tenures.
Pledge: An asset held as security which the lender can sell on default. The asset, usually movable, remains WITH THE LENDER until the loan is repaid.
PPMT and IPMT: Excel functions that split an EMI into its principal and interest components for a given period.
Pre-EMI interest: Monthly payments covering only the interest component, typical for incomplete house properties where the full loan is not yet disbursed or possession is not received.
Prepayment: Paying back capital before the scheduled time, reducing both the capital and the remaining EMI period. RBI has mandated no prepayment charges on home loans taken from banks.
Reducing balance method: Calculating interest on the outstanding balance rather than on fixed capital, so repayments genuinely reduce the interest charged.
Refinancing: Repaying an existing loan by taking another, to extend the duration or lower the interest cost. Most worthwhile on long term loans or where the outstanding amount is high.
Rest: The interest charging cycle, which can differ from the payment cycle. With annual rest and monthly payments, the borrower gets no credit during the year so the effective cost exceeds the quoted rate.
Revolving credit: Where a credit card user does not pay the entire amount and carries some over to following cycles. At 3 per cent a month the compounded annual cost is 42.6 per cent.
Snowball strategy: Repaying the smallest loan amounts first to build a sense of success and momentum, rolling the freed-up amount into the next loan. It ignores interest rates entirely.
Windfall: Unexpected income such as a high annual bonus, inheritance or lottery win. A healthy portion should be saved, since the family already lives without it, and it may be parked in risk free liquid assets meanwhile.
Zero base budgeting: Building the budget from scratch rather than modifying last year's numbers, so every expense is thought through and not incurred merely because it was incurred before.

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Original explanatory writing based on the official NISM workbook for Series X-A, which is published and copyrighted by NISM. Check figures against the current edition at nism.ac.in.

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