Form 18 Under Income Tax Act 2025 guide

Form 18 Under Income Tax Act 2025 – How to Apply for Affordable Housing Project Notification

Running an affordable housing project in India? Then you already know the paperwork never really ends.

But here is one form most developers miss until it is too late — Form 18 under the Income Tax Act 2025.

Before your project can claim any tax benefit under Section 46(11)(d)(vii), the Central Board of Direct Taxes has to officially recognize it as a "specified business." That recognition does not happen automatically. You have to apply for it. And that application is Form 18.

This guide covers the full process - what the form is, who files it, how to file it, what CBDT does after you submit it, and answers to questions that come up most often.

What is Form 18 in the Income Tax Act 2025?

Form 18 is a formal application filed before the Member (IT), CBDT to get your affordable housing project notified as a specified business under Section 46(11)(d)(vii) of the Income Tax Act 2025.

The filing rules are set out under Rule 36 of the Income Tax Rules 2026.

Why does this matter? Because without this notification, your project does not qualify as a "specified business" under the Act. That means no deductions, no tax benefits, even if your project otherwise meets every other requirement.

Who Should File Form 18?

Any entity planning an affordable housing project and wanting CBDT notification under Section 46(11)(d)(vii) needs to file this form. That covers private limited companies, LLPs, partnership firms, and other registered legal entities.

One thing to note the form is filed under PAN login on the income tax e-filing portal. Not TAN login. Just PAN.

What is the Due Date for Filing Form 18?

There is no fixed due date.

Form 18 is event-based, which means you file it when your project is ready and you want the notification. You are not locked into a particular month or quarter. Any time during the tax year works.

How to File Form 18 on the E-Filing Portal

The entire process is online. No physical submission, no paper forms.

Here is exactly where to go on the portal:

Step 1 — Log in using your PAN credentials at the income tax e-filing portal.

Step 2 — Go to your Dashboard.

Step 3 — Click on e-File in the top menu.

Step 4 — Select Income Tax Forms.

Step 5 — Click on File Income Tax Forms.

Step 6 — Choose Forms as per Income Tax Act 2025.

Step 7 — Select Form 18, fill in all required details, and submit after verification.

Full navigation path: Dashboard → e-File → Income Tax Forms → File Income Tax Forms → Forms as per Income Tax Act 2025 → Form 18

How Do You Verify Form 18 Before Submitting?

Two options are available:

DSC (Digital Signature Certificate) — Works well if your entity already uses a registered DSC for income tax filings.

EVC (Electronic Verification Code) — Generated via Aadhaar OTP, net banking, or bank account verification.

Both are accepted. Use whichever you have ready.

What Happens After You File Form 18?

Once the form is submitted, here is how the process moves forward:

Confirmation first — You get an SMS and email on your registered contact details right after successful submission.

CBDT review — The Board reviews the application. If anything is missing or unclear, they send a deficiency letter asking for more information.

Responding to deficiency — If you get a deficiency letter, you have one month from the end of that month to respond. So if the letter arrives on 12th August, you have until 30th September to reply.

Final decision — CBDT either issues an official notification in the Government Gazette, approving your project as a specified business, or rejects the application. Before any rejection, you get a chance to present your case.

Can CBDT Take Back the Notification?

Yes, it can.

Even after the notification is issued, CBDT has the authority to withdraw it under Rule 36(2)(g), 36(2)(h), 36(2)(i), and Rule 36(2)(j) of the Income Tax Rules 2026.

This usually happens when a project stops meeting the conditions it was approved under. So maintaining compliance even after notification is not optional — it is necessary.

Quick Reference Table — Form 18 at a Glance

Detail	Information
Form Name	Form 18
Purpose	Notification of affordable housing project as specified business
Applicable Section	Section 46(11)(d)(vii), Income Tax Act 2025
Applicable Rule	Rule 36, Income Tax Rules 2026
Reviewing Authority	Member (IT), CBDT
Filing Mode	Online Only
Login Type	PAN Login
Due Date	Event-based — no fixed deadline
Revision Allowed	No
Deficiency Response Time	1 month from end of month of notice
Verification Options	DSC and EVC
Post-filing Communication	SMS and Email
Approval Published In	Official Gazette of India

How to Check Your Filed Form 18 Details

After filing, go here on the portal to see your submission:

Dashboard → e-File → Income Tax Forms → View Filed Forms → Forms as per Income Tax Act 2025

Facing Issues After Filing? Here is What to Do

If the confirmation message never came, or you cannot see the form in your filed forms section, raise a grievance on the portal.

Without logging in (Pre-Login): Scroll to the footer of the portal → click Contact Us → select Grievance

After logging in (Post-Login): Main menu → Grievance tab → click Submit Grievance

Attach your ARN Receipt or Acknowledgement Number when you submit the grievance. That makes the resolution faster.

Frequently Asked Questions (FAQs) on Form 18

These are the questions that come up most often about Form 18 under the Income Tax Act 2025.

Q1. How to file an application for notification of affordable housing project as specified business under Section 46(11)(d)(vii)?

The application for notifying an affordable housing project as a specified business under Section 46(11)(d)(vii) of the Income Tax Act 2025 is filed through Form 18. This form is governed by Rule 36 of the Income Tax Rules 2026. It is submitted directly to the Member (IT), CBDT through the income tax e-filing portal using PAN login.

Q2. Who can file Form 18 on the e-filing portal?

Any entity company, LLP, firm, or other legal body, that wants its affordable housing project notified under Section 46(11)(d)(vii) of the Income Tax Act 2025 can file Form 18. Filing is done under PAN login. TAN login cannot be used for this form.

Q3. What is the due date for filing Form 18?

Form 18 does not have a fixed due date. It is an event-based form. You can file it at any point during the tax year, whenever you are ready to apply for the notification.

Q4. How to file Form 18 on the e-filing portal step by step?

Log in to the income tax e-filing portal using your PAN. Then go to: Dashboard → e-File → Income Tax Forms → File Income Tax Forms → Forms as per Income Tax Act 2025 → Form 18. Fill in the required details, verify using DSC or EVC, and submit.

Q5. Will any order be passed after filing Form 18?

Yes. After you submit Form 18, CBDT reviews the application. They may ask for additional documents if needed. Based on their review, CBDT will either publish an approval notification in the Official Gazette, recognizing the project as a specified business, or reject the application, but only after giving the applicant a proper hearing.

Q6. What modes of filing are available for Form 18?

Form 18 is available in online mode only. There is no offline or paper-based option for filing this form.

Q7. What modes of verification are available for Form 18?

Both DSC (Digital Signature Certificate) and EVC (Electronic Verification Code) are accepted for verifying Form 18 before submission.

Q8. Which login should be used for filing Form 18 — PAN or TAN?

Form 18 must be filed using PAN login. TAN login does not apply to this form.

Q9. Can Form 18 be revised after filing?

No. Once Form 18 is submitted, it cannot be revised. However, if CBDT sends a deficiency letter after reviewing the application, you can respond to it and provide the missing information within one month from the end of the month in which the letter was served.

Q10. Where can I check the details of my filed Form 18?

After submission, go to: Dashboard → e-File → Income Tax Forms → View Filed Forms → Forms as per Income Tax Act 2025 to see your filed Form 18 details.

Q11. Will I get any communication after filing Form 18?

Yes. After successful submission of Form 18, an SMS and an email are sent to the registered mobile number and email ID linked to your account.

Q12. Can CBDT withdraw the affordable housing project notification?

Yes. CBDT can withdraw the notification under Rule 36(2)(g), Rule 36(2)(h), Rule 36(2)(i), and Rule 36(2)(j) of the Income Tax Rules 2026 if the project stops meeting the required conditions after being notified.

Q13. What should I do if I cannot view my filed Form 18 or did not receive any communication?

Raise a grievance on the income tax e-filing portal. Two options are available. Pre-Login — Go to the footer of the portal, click Contact Us, and select Grievance. Post-Login — Log in, go to the main menu, open the Grievance tab, and click Submit Grievance. Attach your ARN Receipt or Acknowledgement Number for faster resolution.

Need Help Filing Form 18?

The portal process is straightforward, but what really determines whether CBDT approves your application is the quality of the documents you attach, how you present your project, and how you respond if a deficiency notice arrives.

At LegalDev, we help housing developers and entities handle income tax compliance from start to finish. Form 18 preparation, document review, CBDT correspondence, and deficiency responses included.