When GST 2.0 took effect on 22 September 2025, new small cars became noticeably cheaper overnight. A year on, buyers in Delhi NCR are asking a fair question: if a new car costs less than it used to, is a three-year-old used car still the smarter buy? The answer depends on the gap between the two prices, what each car will be worth when you sell it, and the costs that sit around the sticker price. This guide takes each one in turn, so you can compare a new car with used cars in Delhi NCR on equal terms.
What GST 2.0 Changed for New Cars
Before the change, most cars paid 28% GST plus a compensation cess. From 22 September 2025, small petrol, CNG and LPG cars (up to 1,200 cc and 4,000 mm long) and small diesel cars (up to 1,500 cc and 4,000 mm) moved to 18% GST with no cess. Larger cars moved to a flat 40% with no cess, down from 28% plus 15 to 22% cess. Electric cars stayed at 5%.
On a car with a ₹5 lakh base price, the tax falls from ₹1.45 lakh to ₹90,000. The reported benefit on popular models ran up to about ₹84,600 on the Maruti Suzuki Swift, ₹1.23 lakh on the Hyundai Venue and ₹1.55 lakh on the Tata Nexon, depending on the variant.
What It Did to Used Car Prices
Very little, on the surface. GST on used cars did not change. Dealers still pay 18% on their margin, which is the difference between what they paid for the car and what they sell it for, and a private owner selling a personal car pays no GST at all. On a car a dealer buys for ₹4 lakh and sells for ₹5.5 lakh, the GST is ₹27,000.
Industry players told Business Standard this month that used car prices have stayed broadly flat, and that last year's cut on new cars weighed on the pre-owned market. In other words, the gap between a new car and a nearly new one has narrowed for many small cars. That gap is the number you need to check before you decide.
Step 1: Compare the Real Gap, Not the Sticker Price
Start with the on-road price of the new car you would actually buy, including registration, road tax, insurance and accessories, not the ex-showroom figure. Then find three or four listings of the same model at around three years old with similar kilometres. The difference between the two is your real gap.
Here is an illustrative example. Say a new hatchback costs ₹7 lakh on-road and a well-kept three-year-old version of the same model is listed at ₹5 lakh. Before GST 2.0, the new car cost more, so the gap was wider. If the GST benefit on that model was around ₹80,000, the used car's advantage has shrunk from about ₹2.8 lakh to ₹2 lakh. Whether ₹2 lakh is worth it depends on the next three steps.
Model guides help here. Our used Maruti Swift buying guide and used Tata Nexon guide show what to expect from two of the models that gained the most from the cut. You can also browse used Maruti Suzuki cars in Delhi NCR to see how three-year-old prices compare with today's new-car prices.
Step 2: Account for Depreciation
A new car loses value fastest in its first few years. The depreciation schedule insurers use to set a car's insured value (IDV) shows the shape of the curve: 5% up to six months, 15% up to one year, 20% up to two years, 30% up to three, 40% up to four and 50% up to five years. Market resale prices do not follow this table exactly, but the shape is similar.
The practical effect is simple. Buying a three-year-old car means the first owner has already absorbed the steepest drop. If you plan to change cars again within three or four years, a used car usually costs you less in lost value. If you plan to keep the car for eight years or more, the difference evens out, and a new car's full warranty and known history start to count for more.
If you are selling your current car as part of the switch, check what your car is really worth first, so you can judge any exchange offer properly.
Step 3: Add the Costs Around the Price
Several costs favour the used car. Road tax is paid once, when a car is first registered, so a used car bought within Delhi needs an ownership transfer, not fresh road tax. Insurance is based on the car's insured value, so a three-year-old car is generally cheaper to insure. And you can often get a higher variant, with features like an automatic gearbox, for the price of a base new model.
Others favour the new car. New cars come with a full manufacturer warranty and free services, and new-car loans usually carry lower interest rates than used-car loans. Used cars also bring costs buyers forget: transfer charges, a service soon after purchase and possibly new tyres or a new battery. Read our list of hidden costs of buying a used car before you set a budget, and compare rates with Hooter's used car loan options.
If the car you like is registered in Haryana or Uttar Pradesh, add re-registration and Delhi road tax to the sum. Our guide to buying an NCR car with HR or UP plates explains what that costs.
Step 4: Dealer or Private Seller?
GST applies only when you buy from a dealer, and it is charged on the dealer's margin, which is usually already built into the price you see. A private seller charges no GST, but you also give up dealer checks, any warranty and help with the paperwork. Our comparison of buying from a dealer or a direct seller sets out the trade-offs.
So, New or Used?
A used car usually makes more sense if you want a higher segment or variant for your budget, plan to change cars within four years, or are spending under ₹5 lakh, where new options are limited. Start with used cars under ₹5 lakh or, for something bigger, used SUVs under ₹10 lakh.
A new car makes more sense if the gap to a three-year-old version of the same model is small, you will keep the car for eight years or more, or you want a full warranty and no history to check.
Whichever way you lean, run the numbers on the specific model rather than on general rules. Put the new car's on-road price next to two or three real used listings, add the costs above, and the better deal is usually clear.
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Frequently Asked Questions
Did GST 2.0 change the GST on used cars?
No. Dealers pay 18% GST on their margin, as they did before GST 2.0. A private sale between individuals attracts no GST.
Which new cars became cheaper under GST 2.0?
Small petrol, CNG and LPG cars up to 1,200 cc and small diesel cars up to 1,500 cc, both under 4 metres long, moved from 28% plus cess to 18%. Larger cars moved to a flat 40% with no cess, which also lowered prices for many models.
Is a 3-year-old used car still cheaper than a new one?
On price, yes, but the gap has narrowed for many small cars. Compare the new car's on-road price with real listings of the same model, then add insurance, loan rates and expected resale value.
Do I pay road tax again when I buy a used car in Delhi?
Not if the car is already registered in Delhi. You pay ownership transfer charges. A car registered in another state needs re-registration and Delhi road tax.
Should I buy from a private seller to avoid GST?
GST on a dealer sale is charged only on the margin and is usually built into the price. Choose based on checks, warranty and paperwork support, not GST alone.