WorkIndex/Composite Supply Construction
Compliance guide

Composite Supply Construction
India-specific preparation guide

Composite Supply Construction needs current-law checks, portal verification, documents and a precise brief before you compare experts on the WorkIndex work index.

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Last fact-checked: 2026-06-29
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India specific
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What this page helps you decide

Composite Supply Construction is best handled after identifying the exact scope, period, applicable portal and documents. Use this page to prepare a sharper expert brief instead of relying on generic summaries.

  • Identify the exact period, assessment year or tax year, income head, entity type and portal status before applying Composite Supply Construction.
  • Reconcile source data such as AIS/TIS, Form 26AS, books, bank statements, invoices, notices and prior returns.
  • Ask the expert to flag regime choice, deduction limits, disclosure schedules, penalty exposure and expected deliverables.
  • Do not rely on old blog summaries where forms, deadlines, sections or portal utilities have changed.
Fact check

Accuracy notes before you act

  • TDS on payments to contractors and subcontractors is deducted u/s 194C at 1% for individuals/HUFs and 2% for other entities.
  • GST on works contracts for government roads, dams, bridges, and public infrastructure is generally 12%, while commercial projects attract 18%.
  • GST is payable on construction advances at the time of receipt, and tax liability cannot be deferred until final completion or possession.
  • Liquidated damages or penalties for delayed construction are subject to 18% GST if characterized as tolerating a breach of contract.
Documents

Documents and facts to keep ready

  • PAN, Aadhaar, GSTIN, CIN/LLPIN, TAN or registration details where applicable.
  • Relevant financial year, assessment year, tax year, return period, due date and notice number.
  • Books, invoices, payroll, bank statements, contracts, prior filings and portal screenshots.
  • Expected output: filing, registration, correction, advisory memo, notice response, audit report or recurring compliance.
Care points

Common mistakes to avoid

  • Using an old due date, old section number or old form without checking the live portal.
  • Posting a vague requirement without period, entity type, city, documents and deadline.
  • Comparing quotes without clarifying government fee, professional fee and exclusions.
  • Skipping reconciliation with AIS/TIS, books, Form 26AS, GST data or bank records.
  • Treating explanatory SEO content as final tax, legal, audit or investment advice.