UPSC IFoS 2026 – How to Apply Online (Complete Guide)

UPSC IFoS 2026

Union Public Service CommissionGraduate (Science/Engineering) hard

UPSC IFoS 2026 application is filed jointly with the CSE Prelims application at upsconline.nic.in. Candidates wishing to appear for both CSE and IFoS must select both options during the Part II registration. A separate application with a higher fee is required for IFoS.

Step-by-Step Application Process

  • Step 1 – Visit the Official Portal: Go to upsconline.nic.in → Click on 'Civil Services (Prelim) Examination 2026 / Indian Forest Service (Prelim) Examination 2026'.
  • Step 2 – Part I Registration: Enter Name, DOB, Mobile, Email → Generate Registration ID.
  • Step 3 – Part II Registration: Login with Registration ID → Select IFoS (or both CSE + IFoS) → Fill educational qualifications (science degree mandatory) → Enter optional subject choices for Mains.
  • Step 4 – Upload Documents: Recent passport-size photograph (40 KB), signature (40 KB), and relevant supporting documents (category certificate, PwD certificate if applicable).
  • Step 5 – Fee Payment: Pay ₹200 for IFoS (General/OBC/EWS). SC/ST/Female/PwD candidates are exempt. Payment via SBI Net Banking, Debit/Credit Card, or SBI Cash Challan.
  • Step 6 – Submission & Print: Review all entries → Submit → Download confirmation page.
  • Step 7 – Separate IFoS Mains Form: After Prelims result, qualified candidates file a separate IFoS Mains application with optional subject details and exam centre preference.

Application Fee

CategoryIFoS Fee
General / OBC / EWS₹200
SC / ST₹0 (Exempted)
PwD₹0 (Exempted)
Female (All categories)₹0 (Exempted)

Frequently Asked Questions

Q.Is a separate form required for IFoS and CSE?

At the Prelims stage, both are covered under one combined application form where you select both or either option. However, separate Mains application forms are filed after Prelims result.

Q.What is the fee if I apply for both CSE and IFoS together?

You pay the IFoS fee (₹200) when applying for both. The CSE application fee (₹100) is subsumed within the combined application process; total fee is ₹200 for combined registration.

Q.Can I change optional subject after filing IFoS application?

Optional subjects can be changed only at the IFoS Mains application stage (filed after Prelims result). Once IFoS Mains form is submitted, no changes are allowed.

Q.What documents should I keep ready for IFoS application?

Keep your science degree certificate / provisional degree letter, age proof, category certificate, Aadhaar card, recent passport photograph, and scanned signature ready before starting the online application.

UPSC IFoS 2026 HubOfficial Website

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