Buying a new flat? Don’t ignore these hidden costs

• Stamp duty, registration, and GST can add 5-8 percent or more to flat price
• Maintenance, parking, and add-ons may cost several lakhs at possession
• Home loan fees, interiors, and ongoing charges increase total flat expenses

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When you’re buying a new flat, it’s easy to focus on the headline price. Rs 1.5 crore sounds clear and fixed. But by the time you actually get the keys, the amount you’ve paid can be noticeably higher. Not because anyone tricked you, but because real estate comes with layers of additional costs that don’t always get discussed upfront.

If you’re budgeting tightly, these “extras” can throw your entire plan off.

Stamp duty and registration

This is the first big addition to the advertised price. Stamp duty and registration charges vary by state, but together they can add 5 to 8 percent or more to the property value. On a Rs 1.5 crore flat, that could mean another Rs 7 to Rs 12 lakh straight away.

These charges are payable upfront and cannot be financed easily unless your home loan includes them. Many buyers forget to factor this into their savings calculations.

GST on under-construction property

If you’re buying an under-construction flat, goods and services tax applies. Currently, it is typically 5 percent for most residential units without an input tax credit. That’s a significant addition.

However, if the flat is ready to move in and has received a completion certificate, GST does not apply. The difference can influence whether you choose a ready unit or an under-construction one.

Maintenance deposits and advance charges

Developers often collect advance maintenance for one or two years at the time of possession. There may also be corpus fund contributions, clubhouse charges, electricity meter charges, water connection fees, and sinking fund deposits.

Each may not seem alarming. Together, they can add several lakhs. These are usually due around possession, when you’re already stretched.

Parking and other add-ons

In many projects, parking is not included in the base price. Covered or basement parking slots may be charged separately. Premium floor charges, corner flat charges, garden-facing charges, and even better-view charges can quietly push up your final bill.

The base rate per square foot is often just the starting point.

Home loan-related expenses

If you’re taking a home loan, there are additional costs here too. Banks may charge processing fees. There could be legal and technical evaluation charges. You’ll also need property insurance, and sometimes life insurance linked to the loan.

Over a 20-year tenure, interest itself is the highest hidden cost. A ₹1 crore loan at 8.5 percent can mean paying almost as much in interest as the principal over the full tenure if not prepaid strategically.

Interiors and finishing

New flats often come in a basic finish. You may still need wardrobes, modular kitchen upgrades, lighting fixtures, curtains, appliances and possibly air-conditioning units.

Interior work can easily cost Rs 5 to Rs 15 lakh, depending on the size and finish level. Many buyers underestimate this completely.

Ongoing society charges and property tax

Once you move in, monthly maintenance begins. In larger complexes with amenities like pools and gyms, these charges can be substantial. Property tax, water charges and future repair contributions are recurring costs that continue long after possession.

The bottom line

The real cost of buying a new flat is not just the agreed-upon value. It’s the agreement value plus statutory charges, loan expenses, interiors and ongoing commitments.

Before signing, ask the developer for a full cost sheet. Add a buffer of 5-10 percent above your calculated total. A home is already an emotional decision. Your finances should be the practical counterbalance.