How to Buy the Right Car for Your Budget

By Chong Sem · Updated 7 November 2026

Short answer: work backwards from your monthly take-home pay, not forwards from the car you like. As a starting guideline, keep the whole monthly cost of the car (EMI, fuel, insurance and servicing together) at or under about 20% of take-home pay. On ₹1 lakh a month, that's roughly ₹20,000, which in our worked example fits a ₹6.5 lakh petrol hatchback comfortably and a ₹11 lakh compact SUV not at all.

Most car budgets in India start with the ex-showroom price on a brochure and end with a surprise at the dealership. This guide shows how to buy the right car for your budget in the order that actually works: set a monthly ceiling, turn it into an on-road price, check the loan, then compare real cars on what they cost to own. Every figure is shown with the math so you can swap in your own numbers, or run them in our car loan EMI calculator and total cost of ownership calculator.

Step 1: Set a monthly ceiling, not a price

A car is a monthly expense that happens to arrive as one big number. The EMI is the part you see, but fuel, insurance and servicing arrive every month too, and together they can add 30% to 50% on top of the EMI. So the first number to fix is the total you're willing to spend on the car each month.

The guideline we use on ThrottleJournal is simple:

Monthly car budget = take-home pay × 15% to 20%

This is our rule of thumb, not a bank rule. Banks decide how much they'll lend based on your income and existing EMIs, and they'll often approve far more than is comfortable. The 15% to 20% range leaves room for rent or a home loan, savings and emergencies. If you already have a home loan EMI, aim for the lower end. If the car replaces daily cab or metro spending, you can justify the upper end, because some of that money is already in your budget.

Monthly car budget by take-home pay (our guideline)
Take-home pay	At 15%	At 20%
₹50,000	₹7,500	₹10,000
₹75,000	₹11,250	₹15,000
₹1,00,000	₹15,000	₹20,000
₹1,50,000	₹22,500	₹30,000
₹2,00,000	₹30,000	₹40,000

Write your number down before you visit a showroom. It's much harder to hold a line you decide on while sitting in a car you like.

You also need a separate upfront budget: the down payment plus anything the dealer collects at delivery that the loan won't cover. A down payment of at least 20% of the on-road price is a sensible floor. It keeps the loan smaller than the car's value in the first couple of years, when depreciation is steepest.

Step 2: Turn ex-showroom into on-road price

The price in an advert is usually the ex-showroom price. What you actually pay is the on-road price, which adds state and insurance costs on top. In most states the biggest add-on is road tax.

Road tax is set by each state, so the same car costs a different amount in different cities. We use Delhi in this guide because its slabs are simple. For private cars in Delhi, road tax is charged once, as a share of the ex-showroom price:

Delhi road tax on new private cars
Ex-showroom price	Petrol / CNG	Diesel
Up to ₹6 lakh	4%	5%
₹6 lakh to ₹10 lakh	7%	8.75%
Above ₹10 lakh	10%	12.5%

Source: Delhi road tax slabs as published by Bajaj Finserv. Electric cars priced up to ₹30 lakh ex-showroom are currently exempt from road tax in Delhi. Other states charge different rates, so check your own state's transport department before you budget.

The full on-road price is built like this:

On-road price = ex-showroom + road tax + registration and number-plate fees + first-year insurance (+ TCS if the car costs over ₹10 lakh)

Registration, HSRP plate and hypothecation: small fixed fees. We use about ₹3,000 in total in our examples (registration ₹600, HSRP plate ₹900 and a hypothecation fee of ₹1,500 when the car is on a loan, as listed by Delhi RTO calculators). Treat this as approximate.
First-year insurance: a new car comes with a comprehensive policy for year one plus multi-year third-party cover, as required. The dealer's quote is a starting point, not a fixed price. Our examples use illustrative figures of ₹30,000 to ₹45,000.
TCS: if the car's price is over ₹10 lakh, the dealer must collect 1% as tax collected at source, under Section 206C(1F) of the Income Tax Act (see the Income Tax Department's TCS rates). It isn't an extra tax. It's credited against your PAN, and you can adjust it against your tax or claim it as a refund when you file your return. But you still pay it in cash on the day, so it belongs in your upfront budget.

Optional items such as extended warranty, accessories, coating and "handling charges" also show up on many quotations. We cover those in the dealership section, because several of them are negotiable or avoidable.

Step 3: Compare three cars on monthly cost

Here's the method in action. Say your take-home pay is ₹1 lakh a month, so your ceiling is about ₹15,000 to ₹20,000. You're choosing between three petrol cars in Delhi: a hatchback, a compact sedan and a compact SUV.

Our assumptions (change them to match your situation):

Ex-showroom prices of ₹6.5 lakh, ₹8.5 lakh and ₹11 lakh. These are illustrative price points, not specific models.
First-year insurance of ₹30,000, ₹36,000 and ₹45,000 (illustrative), then ₹15,000, ₹17,000 and ₹19,000 a year after that.
Registration and plate fees of ₹3,000.
20% down payment on the on-road price, loan at 8.8% for 5 years.
1,000 km a month at real-world mileage of 15, 14 and 12.5 km/l, with petrol at ₹102.12 a litre (Delhi).
Servicing of ₹5,000, ₹6,000 and ₹6,500 a year (assumed averages for this class).

Three cars, one ₹1 lakh salary: on-road price and monthly cost
	Hatchback	Compact sedan	Compact SUV
Ex-showroom	₹6,50,000	₹8,50,000	₹11,00,000
Road tax (Delhi)	₹45,500 (7%)	₹59,500 (7%)	₹1,10,000 (10%)
Fees + first-year insurance	₹33,000	₹39,000	₹48,000
On-road price	₹7,28,500	₹9,48,500	₹12,58,000
Down payment (20%)	₹1,45,700	₹1,89,700	₹2,51,600
TCS at delivery (refundable)	₹0	₹0	₹11,000
Loan amount	₹5,82,800	₹7,58,800	₹10,06,400
EMI (8.8%, 5 years)	₹12,041	₹15,678	₹20,794
Fuel per month	₹6,808	₹7,294	₹8,170
Insurance per month (year 2 on)	₹1,250	₹1,417	₹1,583
Servicing per month	₹417	₹500	₹542
Total monthly cost	₹20,516	₹24,889	₹31,088
Share of ₹1 lakh take-home	20.5%	24.9%	31.1%

A few things stand out:

The EMI is only about 60% of the real monthly cost. On the hatchback, the EMI is ₹12,041, but the car really costs ₹20,516 a month once fuel, insurance and servicing are in. A buyer who budgets on EMI alone underestimates by about ₹8,500 a month.
The SUV costs ₹10,572 a month more than the hatchback, even though the ex-showroom gap is ₹4.5 lakh. Part of that is the 10% road tax slab, part is the bigger loan, and part is lower mileage.
Only the hatchback sits at our 20% line. The sedan is borderline. The SUV would take nearly a third of take-home pay before parking, tolls or a single repair.

How you read the result matters more than the result. If you drive less than 1,000 km a month, fuel drops and the sedan may fit. If your take-home pay is ₹1.5 lakh, the SUV lands at about 21%, which is reasonable. The point is to compare cars on the same full monthly figure, using your own inputs.

Interest paid over the loan

The same three loans also differ a lot in what they cost you in interest over five years: ₹1,39,689 on the hatchback, ₹1,81,873 on the sedan and ₹2,41,219 on the SUV. That interest buys you nothing except earlier ownership, so it's worth seeing as a number before you sign. Our complete car loan guide explains how lenders calculate it and how prepayment can cut it.

Step 4: Choose the down payment and tenure

Once you've picked a car that fits, the loan structure decides how much it really costs. Here's the ₹10,06,400 SUV loan from the example at the same 8.8% rate across three tenures:

Same loan, three tenures (₹10,06,400 at 8.8%)
Tenure	EMI	Total interest
3 years	₹31,910	₹1,42,348
5 years	₹20,794	₹2,41,219
7 years	₹16,090	₹3,45,167

Stretching to seven years cuts the EMI by ₹4,704 a month compared with five years, which makes the SUV look affordable. But it adds ₹1,03,948 in interest, and you'd still be paying for the car when it's seven years old and worth a fraction of what you owe on it in the early years. A long tenure makes a car that doesn't fit your budget look like it does. Use it only if you're sure you'll prepay early.

A bigger down payment works the other way. Put 40% down on the same SUV instead of 20% and the loan drops to ₹7,54,800. The five-year EMI falls to ₹15,595 and total interest to ₹1,80,915, saving ₹60,304 in interest. The catch is that the extra ₹2.5 lakh has to come from savings, so don't empty your emergency fund to do it.

Our working rule: keep the tenure at five years or less, and if the EMI only fits at seven, look at a cheaper car instead. Run your own options in the EMI calculator to see the interest figure, not just the EMI.

Price slabs that change your tax bill

Because road tax is charged on the whole ex-showroom price at the slab rate, a small price difference near a slab edge can cost a lot. In Delhi, petrol cars pay 7% up to ₹10 lakh and 10% above it.

A petrol car at ₹9,99,000 ex-showroom pays ₹69,930 road tax.
A petrol car at ₹10,05,000 pays ₹1,00,500, plus ₹10,050 TCS at delivery.

That's ₹30,570 more road tax for a car that costs ₹6,000 more. The same jump happens at the ₹6 lakh edge, where the rate goes from 4% to 7%. The Financial Express has shown how a car priced just under ₹6 lakh pays ₹24,000, while one just over pays about ₹42,000.

What this means when you buy:

If two variants sit either side of a slab edge, compare their on-road prices, not ex-showroom. The cheaper-looking gap can be much bigger on the road.
Be careful about factory-fitted accessories added to the invoice. If they push the invoice price across a slab, you pay the higher rate on the whole car. Fitting accessories separately after delivery avoids that.
Slabs differ by state, so check yours. Some states have more slabs, and some charge a flat rate.

Picking the fuel type for your budget

Fuel type changes both what you pay upfront and what you pay every month, and the right answer depends mostly on how far you drive.

Petrol usually has the lowest purchase price and the lowest road tax slab rates in Delhi. It suits drivers doing up to about 1,000 km a month.
Diesel costs more to buy, pays a higher road tax rate in Delhi at every slab, and is less common in small cars now. It pays back mainly for very high mileage on highways.
CNG has a modest price premium over petrol and much lower running costs where CNG stations are easy to reach. Boot space and refuelling queues are the trade-offs.
Electric costs the most upfront but most are exempt from road tax in Delhi, and the running cost per km is the lowest, especially when you charge at home.

For a full side-by-side with real-world mileage, fuel prices and five-year totals, read our EV vs petrol vs diesel vs CNG guide, or put your own kilometres into the fuel type cost comparison calculator. If you're sticking with petrol, our monthly fuel cost guide shows how to estimate that line of your budget accurately.

Choosing the right variant

Within one model, the price gap between the base and top variants is often ₹3 lakh to ₹5 lakh. Most of that buys features, not a better car to drive. Here's how to decide where to stop:

List what you actually need before you look at the brochure: the number of airbags and safety features you want, an automatic gearbox if you drive in heavy traffic (petrol automatics rarely cost more in fuel; see manual vs automatic mileage), rear AC vents if family sits in the back.
Find the lowest variant that has all of them. That's your starting point. Every step up from it should earn its cost.
Price each extra feature on its own. If moving up one variant costs ₹80,000 and the only thing you'd use is a bigger touchscreen, you're paying ₹80,000 plus road tax plus interest for a screen.
Check safety ratings for the exact body and variant where possible, rather than assuming the top variant is the only safe one.
Prefer factory features over add-ons for safety items, and add-ons over factory features for cosmetic ones, which keeps the invoice price lower.

Remember that every rupee added to the ex-showroom price also adds road tax, insurance (because the insured value is higher) and loan interest. A ₹1 lakh variant step in Delhi at 7% road tax is really about ₹1.07 lakh before you count interest and a slightly higher premium.

At the dealership: what to question

Ask for an itemised on-road quotation in writing, then go through each line. These are the ones worth questioning:

Insurance: you're generally not obliged to buy the dealer's policy. Get a comprehensive quote for the same cover and add-ons from an insurer directly and compare. A difference of a few thousand rupees is common.
Handling or logistics charges: ask what the charge covers. Some dealers drop it when asked.
Accessories packs: these are optional. Price the items you want at an independent shop before agreeing.
Extended warranty: it can be worth it on cars with expensive electronics or if you keep cars long, but compare its cost with the likely repair it protects against. You can often buy it later, before the standard warranty ends.
Coating and treatments: rarely necessary on a new car. Skip them unless you have a specific reason.
Loan through the dealer: convenient, but compare the interest rate and processing fee with your own bank's offer. Our car loan guide covers what to compare.

Timing helps too. Many dealers run discounts or added benefits near month-end, quarter-end and calendar year-end, when they're closing targets. A car made earlier in the year can come with a bigger discount, but it will be valued as an older car when you sell it, so weigh the saving against that.

Before you take delivery, do a pre-delivery inspection: check the paint and panels in daylight, test every electrical feature, confirm the VIN and manufacturing month on the car match the documents, and check the odometer is close to zero.

New or used?

A good used car can put a more comfortable car inside the same monthly budget, because the first owner has already taken the steepest part of the depreciation. It also usually means a smaller loan and a lower insurance premium, since the insured value is lower.

The trade-offs are real, though:

Loans cost more. Used car loans generally carry higher interest rates and shorter tenures than new car loans, so compare EMIs on the actual offer.
Maintenance rises with age. Budget more for tyres, battery, brakes and suspension work in the first year of ownership.
Paperwork matters. Check the RC transfer, insurance history, service records and that there's no outstanding loan on the car.
Age rules apply in some cities. Check whether any local age limit on petrol or diesel cars affects how long you can keep the car where you live.

Whichever route you take, compare the two options on the same monthly figure from Step 3, not on sticker price. Our true cost of owning a car guide shows how depreciation and running costs add up over five years.

A buying checklist

Set your monthly ceiling at 15% to 20% of take-home pay.
Set an upfront budget: at least 20% down, plus 1% TCS if the car costs over ₹10 lakh.
Shortlist two or three cars and get the on-road price for each in your state.
Estimate monthly fuel, insurance and servicing for each, using your own kilometres.
Add the EMI at a five-year tenure and compare the total with your ceiling.
Check whether any variant sits just over a road tax slab edge.
Pick the lowest variant with every feature you need.
Get an itemised quote, and compare insurance and loan offers independently.
Do a pre-delivery inspection before you sign the delivery note.
Claim your TCS when you file your income tax return.

Our total cost of ownership calculator puts most of this into one screen. Try it with your shortlist before you visit a showroom.

FAQs

How much car can I afford on a ₹50,000 salary?

Using our 15% to 20% guideline, a take-home pay of ₹50,000 gives a monthly car budget of ₹7,500 to ₹10,000 for the EMI, fuel, insurance and servicing together. Even the ₹6.5 lakh hatchback in our example costs about ₹20,500 a month on a five-year loan, so at this income a larger down payment, a used car or low monthly driving would be needed to fit.

Is the EMI the best way to compare cars?

No. In our example, the EMI was only about 60% of the real monthly cost. Fuel, insurance and servicing add the rest, and they differ between cars. Compare the total monthly cost instead.

Is TCS on a car an extra tax?

No. The 1% TCS collected on cars over ₹10 lakh is credited to your PAN. You can adjust it against your income tax or claim it as a refund when you file your return. It does, however, have to be paid in cash at the time of purchase.

Should I take a 7-year car loan to lower the EMI?

Usually not. In our example, going from five to seven years cut the EMI by ₹4,704 a month but added ₹1,03,948 in interest. If a car only fits your budget at seven years, a cheaper car is usually the better choice.

Why is on-road price so different from city to city?

Mainly because road tax is set by each state, with different rates and price slabs. Registration fees and insurance also vary. Always get the on-road price for the state where the car will be registered.