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Who is this guide for? If you work as a contractor or sub-contractor in India (construction, electrical, plumbing, interior fit-out, IT services, catering, transport, advertising, or any other contract-based work), this guide covers your income tax obligations for AY 2026-27 (FY 2025-26): how your contract income is taxed, presumptive taxation under Section 44AD, TDS deducted on your payments, your own TDS obligation when paying sub-contractors, GST on your services, deductible business expenses, and ITR filing.
Contractors and sub-contractors form the backbone of India's economy. From a civil contractor building apartments to an IT contractor providing software services to a catering contractor running canteen operations, millions of businesses operate on a contract basis.
Unlike commission agents and insurance agents who are excluded from presumptive taxation, contractors have a significant tax advantage: they are fully eligible for Section 44AD presumptive taxation. This means a contractor with turnover up to Rs 3 crore can declare profit at 6% or 8% of turnover, skip detailed books of accounts, and file the simpler ITR-4.
But contractors also face a unique compliance burden. You receive payments with TDS already deducted. If you hire sub-contractors, you must deduct TDS on their payments. Miss this obligation, and 30% of the payment is disallowed as a business expense. And if you work on construction or works contracts, GST compliance adds another layer.
This guide covers every tax obligation a contractor faces from income classification to TDS, GST, and ITR filing.
Who Is a Contractor Under the Income Tax Act
The Income Tax Act does not define "contractor" separately. Instead, Section 194C (now Section 393(1) Sl.6(i) under ITA 2025) defines "work" to identify when TDS applies to contractor payments. If you receive payment for any of the following activities under a contract, you are treated as a contractor:
Tax Rate Chart
Definition of Work Under Section 194C
Activities that make you a contractor for income tax purposes
Construction / civil work
Building, road, bridge, pipeline, and all civil construction
Manufacturing to customer specs
Only if using material purchased from the customer
Advertising
Outdoor, print, digital, and broadcast advertising execution
Broadcasting / telecasting
Including production of programmes for broadcast
Catering
Canteen operations, event catering, institutional food supply
Supply of labour
Manpower supply, housekeeping, security staffing
Carriage of goods / passengers
Transport by road, air, or water (not railways)
Source: Explanation (iv) to Section 194C, Income Tax Act 1961; Section 393(1), ITA 2025
A sub-contractor is any person you engage to carry out part or all of the work that you have contracted to perform for your client. If you are a building contractor and you hire an electrician or a plumber to complete portions of the project, they are your sub-contractors.
The key distinction: when you are the main contractor, your client deducts TDS on payments to you. When you pay your sub-contractors, you must deduct TDS on those payments.
Section 44AD: Presumptive Taxation for Contractors
This is the biggest tax simplification available to contractors. Section 44AD (now Section 58, Sl. No. 1, under ITA 2025) allows eligible contractors to declare profit at a fixed percentage of turnover without maintaining detailed books of accounts.
Eligibility
- Who: Resident individuals, HUFs, and partnership firms (excluding LLPs)
- Turnover limit: Up to Rs 2 crore. Extended to Rs 3 crore if cash receipts are 5% or less of total receipts
- Not eligible: Companies, LLPs, and persons who have opted out of the scheme in the preceding five years
Presumptive Profit Rates
Tax Rate Chart
Section 44AD Presumptive Profit Rates for Contractors
Minimum profit to be declared on turnover
Digital receipts (bank transfer, UPI, cheque)
Receipts through banking channels or prescribed electronic modes
Cash receipts
Physical cash received from clients
Mixed receipts
6% on digital portion, 8% on cash portion
Source: Section 58 Sl.1, Income Tax Act 2025 (Section 44AD, IT Act 1961)
Example
A plumbing contractor has Rs 80 lakh turnover in FY 2025-26. Rs 72 lakh received via bank transfer, Rs 8 lakh in cash.
- Digital profit: 6% of Rs 72 lakh = Rs 4,32,000
- Cash profit: 8% of Rs 8 lakh = Rs 64,000
- Total presumptive profit: Rs 4,96,000
Tax is computed on Rs 4,96,000 as business income. No need to track every material purchase, labour payment, or site expense. No tax audit required.
The Five-Year Lock-In
If you opt for Section 44AD, you must continue declaring income under this scheme for five consecutive assessment years. If you opt out before completing five years (by declaring profit lower than 6%/8% or filing ITR-3 with actual books), you are disqualified from Section 44AD for the next five assessment years.
During those five excluded years, if your income exceeds the basic exemption limit, you must maintain books of accounts and get a tax audit done under Section 44AB (Section 63, ITA 2025).
When Section 44AD Is Not the Right Choice
Presumptive taxation assumes minimum 6-8% profit. For contractors with thin margins (large material costs, heavy equipment depreciation, or high sub-contractor payments), actual profit may be lower than 6%. In such cases, filing ITR-3 with regular books and claiming actual expenses produces lower tax.
A civil contractor with Rs 1 crore turnover, Rs 40 lakh material cost, Rs 30 lakh labour, Rs 10 lakh equipment rental, Rs 5 lakh site expenses, and Rs 5 lakh overheads has actual profit of Rs 10 lakh (10%). Under 44AD, presumptive profit would be Rs 6-8 lakh. Here, 44AD is advantageous. But if the same contractor's actual profit is Rs 3 lakh (3% margin on a competitive bid), declaring 6% under 44AD means paying tax on Rs 6 lakh instead of Rs 3 lakh. Regular books save tax.
TDS Deducted on Your Payments: Section 194C
When your clients pay you for contract work, they are required to deduct TDS under Section 194C (now Section 393(1) Sl.6(i), ITA 2025) before releasing the payment.
Tax Rate Chart
TDS Deducted on Contractor Payments (Section 194C / 393)
Rates effective FY 2026-27
Individual / HUF contractor
Payment code 1023 under ITA 2025
Company / firm / other entity
Payment code 1024 under ITA 2025
Without PAN
Section 206AA applies
Single payment threshold
No TDS if single payment does not exceed this
Annual aggregate threshold
No TDS if total payments in the year do not exceed this
Source: Section 393(1) Sl.6(i), Income Tax Act 2025 (Section 194C, IT Act 1961)
What This Means for You as a Contractor
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You receive payments after TDS deduction. If a client owes you Rs 5,00,000, they pay Rs 4,95,000 (after 1% TDS of Rs 5,000 for individual contractor). The Rs 5,000 is deposited with the government on your behalf.
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Claim TDS credit when filing ITR. The TDS deducted appears in your AIS and Form 26AS. When you file your ITR, you claim this TDS as tax already paid. If your total tax liability is less than the TDS deducted, you get a refund.
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TDS certificate. Your client issues you a TDS certificate, now Form 131 under ITA 2025 (replacing the old Form 16A). This is your proof that TDS was deducted and deposited.
Material Component and TDS
If your invoice separately shows the material cost and the labour/service charge, TDS is deducted only on the labour/service portion (excluding material cost). If the invoice shows a single composite amount without separating material and labour, TDS applies on the entire amount.
Tip: Always raise invoices with material and labour shown as separate line items. On a Rs 10 lakh invoice where Rs 6 lakh is material and Rs 4 lakh is labour, TDS at 1% applies only on Rs 4 lakh (Rs 4,000) instead of Rs 10 lakh (Rs 10,000). This improves your cash flow.
TDS Not Applicable in These Cases
- Total payments from a single client do not exceed Rs 1,00,000 in the financial year AND no single payment exceeds Rs 30,000
- The payer is an individual or HUF not subject to tax audit (for such payers, Section 194M applies instead if total payment exceeds Rs 50 lakh)
- You are a goods transporter owning 10 or fewer goods carriages and you furnish a declaration with your PAN (Section 194C(6) / Section 393 transporter exemption)
Your TDS Obligation: Paying Sub-Contractors
This is where many contractors make costly mistakes. If you hire sub-contractors to execute part of your work, you must deduct TDS on payments to them under the same Section 194C / Section 393(1) Sl.6(i).
When Must You Deduct TDS on Sub-Contractor Payments
You must deduct TDS if:
- You are making payment to a resident sub-contractor for carrying out any work (including supply of labour)
- A single payment exceeds Rs 30,000, OR total payments to that sub-contractor in the financial year exceed Rs 1,00,000
TDS Rates on Sub-Contractor Payments
The rates are identical to what your clients deduct on your payments:
- 1% if the sub-contractor is an individual or HUF
- 2% if the sub-contractor is a company, firm, or other entity
- 20% if the sub-contractor does not furnish PAN
The 30% Disallowance Penalty: Section 40(a)(ia)
If you fail to deduct TDS on a sub-contractor payment where it was required, 30% of that payment is disallowed as a business expense under Section 40(a)(ia). This directly increases your taxable income.
Tax Rate Chart
Impact of Not Deducting TDS on Sub-Contractor Payments
Section 40(a)(ia) disallowance
Payment to sub-contractor
Annual payment exceeding Rs 1 lakh threshold
TDS not deducted (1%)
Amount that should have been deducted
Disallowed expense (30%)
Added back to your taxable income
Extra tax at 30% slab
Additional tax liability due to disallowance
Source: Section 40(a)(ia), Income Tax Act 1961; Section 21(d), ITA 2025
The TDS you should have deducted was Rs 10,000. The tax cost of not deducting it can exceed Rs 90,000. The penalty is disproportionately severe.
TDS Compliance Steps for Contractors Paying Sub-Contractors
- Obtain TAN (Tax Deduction Account Number) before you start deducting TDS
- Deduct TDS at the time of credit to the sub-contractor's account or at the time of payment, whichever is earlier
- Deposit TDS to the government by the 7th of the following month (April to February). March TDS is due by April 30
- File quarterly returns in Form 140 (replacing old Form 26Q under ITA 2025)
- Issue TDS certificates in Form 131 (replacing old Form 16A) to sub-contractors within 15 days of the quarterly return due date
Transporter Exemption: Section 194C(6)
If you are a transporter (goods carriage business), a special exemption applies. No TDS is deducted on payments to you if:
- You own 10 or fewer goods carriages at any time during the previous year
- You furnish a written declaration to the payer with your PAN, stating that you do not own more than 10 goods carriages
This exemption is preserved under Section 393 of ITA 2025.
If you own more than 10 goods carriages, or if you fail to furnish the declaration with PAN, TDS at 1% (individual) or 2% (entity) applies normally.
For payers: If you make transport payments and the transporter furnishes a valid declaration, you must still report the payment in your TDS return (Form 140) with the amount and a note that no TDS was deducted under the transporter exemption.
GST on Contractor Services
Contractors must register for GST if their aggregate turnover exceeds Rs 20 lakh (Rs 10 lakh for special category states). The GST registration process is mandatory before raising GST invoices.
Tax Rate Chart
GST Rates for Contractor Services (FY 2026-27)
Rate depends on the type of contract and project
General construction / works contract
SAC 9954; standard rate for commercial and industrial projects
Labour supply / manpower services
SAC 998519; standard rate
Catering services
SAC 996335; institutional and event catering
Affordable housing (PMAY)
Without ITC; qualifying residential projects
Non-PMAY residential construction
Without ITC; non-affordable residential projects
Transport of goods by road
SAC 996511; GTA services with limited ITC
Source: Notification 11/2017-CT(R) as amended; SAC 9954, 998519
Works Contract vs Pure Service Contract
A works contract involves transfer of property in goods along with labour and services (for example, a construction contractor who supplies cement, steel, and labour to build a structure). Works contracts on immovable property are treated as supply of services under GST.
A pure service contract involves only labour or services without material supply (for example, a housekeeping contractor who supplies only staff). This is treated as supply of services with standard GST rate.
Input Tax Credit for Contractors
Contractors paying 18% GST can claim ITC on all business inputs: material purchases (cement, steel, electrical fittings), equipment rental, vehicle fuel, office rent, and professional services. Contractors paying concessional rates (1% or 5% for residential projects) cannot claim ITC.
ITC on works contract services received for construction of immovable property (on own account) is blocked under Section 17(5)(d) of the CGST Act. This means if you are a builder constructing a project for sale, you cannot claim ITC on sub-contractor works contract invoices for that project.
Deductible Business Expenses
Contractors who maintain books of accounts (either by choice or because they opted out of Section 44AD) can deduct all expenses incurred wholly and exclusively for business purposes under Section 37.
Material and Direct Costs
- Raw materials (cement, steel, sand, aggregate, timber, electrical and plumbing fittings)
- Consumables and fuel for site operations
- Hired equipment and machinery rental (cranes, excavators, concrete mixers)
- Scaffolding and formwork rental
- Site setup costs (temporary structures, site office, storage)
Labour and Sub-Contractor Costs
- Wages paid to daily workers and site labour
- Sub-contractor payments (ensure TDS is deducted to avoid 30% disallowance)
- Supervisor and site engineer salaries
- Employer's contribution to PF and ESI for workers
Equipment and Depreciation
- Depreciation on owned machinery (excavator, crane, mixer, compressor)
- Depreciation on vehicles used for business (trucks, utility vehicles)
- Depreciation on office equipment and computers
- Repairs and maintenance of machinery and vehicles
Administrative and Overhead
- Office rent and utilities
- Telephone and internet
- Accounting and audit fees
- Legal and professional fees
- Insurance (contractor all-risk policy, workmen compensation, vehicle insurance)
- Licence and registration fees (contractor licence, trade licence, MSME registration)
- Bank charges and loan interest (on business loans)
- Tender document fees and EMD (Earnest Money Deposit) forfeiture
Travel and Business Development
- Travel to project sites (fuel, tolls, accommodation)
- Client meeting expenses
- Tender preparation costs (drawings, estimates, printing)
- Trade exhibition and industry event costs
Books of Accounts and Tax Audit
Books of Accounts: Section 44AA (Section 62, ITA 2025)
If you use Section 44AD, you are exempt from maintaining detailed books of accounts. You only need to maintain a basic record of turnover and bank statements.
If you do not use Section 44AD (either by choice or ineligibility), you must maintain books of accounts if:
- Your income from the contracting business exceeds Rs 1,20,000 in any of the three preceding years, OR
- Your total sales, turnover, or gross receipts exceed Rs 10 lakh in any of the three preceding years
Books must be retained for 6 years from the end of the relevant assessment year.
Penalty for non-maintenance: Rs 25,000 under Section 271A.
Tax Audit: Section 44AB (Section 63, ITA 2025)
Tax audit is mandatory in these scenarios:
Tax Rate Chart
Tax Audit Thresholds for Contractors
Section 44AB (Section 63, ITA 2025)
Turnover > Rs 1 Cr (cash > 5%)
Cash receipts or payments exceed 5% of total
Turnover > Rs 10 Cr (cash within 5%)
Higher threshold when predominantly digital
Opted out of 44AD early + income > exempt limit
For the five years after early exit from presumptive scheme
Under 44AD with turnover within limits
Presumptive taxation exempts you from audit
Source: Section 63, Income Tax Act 2025 (Section 44AB, IT Act 1961)
The tax audit report in Form 3CD must be filed by October 31 of the assessment year.
For contractors, "turnover" means the total gross receipts from all contract work. If you are a construction contractor, it includes the total value of all contracts executed during the year, not just the profit margin.
Advance Tax
Contractors under Section 44AD can pay their entire advance tax liability in a single installment by March 15 of the financial year. This is a significant relief compared to the four-installment schedule.
Contractors who do not use Section 44AD must pay advance tax in four quarterly installments:
| Installment | Due Date | Minimum Cumulative Payment |
|---|---|---|
| 1st | June 15 | 15% of estimated tax liability |
| 2nd | September 15 | 45% of estimated tax liability |
| 3rd | December 15 | 75% of estimated tax liability |
| 4th | March 15 | 100% of estimated tax liability |
Advance tax is required if your total tax liability for the year exceeds Rs 10,000 (after TDS credit).
Missing advance tax installments triggers interest under Section 234B and 234C at 1% per month on the shortfall.
Tip for contractors: Contract income is often lumpy. A large project payment in March can push your entire tax liability above estimates made in June. If you are under Section 44AD, the single March 15 deadline simplifies this. If you are on regular books, revise your advance tax estimates each quarter as project payments materialize.
Old Regime vs New Regime
Contractors, like all individual taxpayers, must choose between the old and new tax regimes.
New regime (default): Lower slab rates, higher basic exemption (Rs 4 lakh), standard deduction of Rs 75,000 for salaried/pension income. But most deductions under Section 80C, Section 80D, HRA, and LTA are not available.
Old regime (opt-in): Higher slab rates but all deductions and exemptions are available.
For contractors using Section 44AD, the new regime is usually more beneficial because you are not claiming itemized deductions anyway. For contractors on regular books with significant investments in PPF, ELSS, NPS, or health insurance, the old regime may produce lower tax.
Run the numbers for both regimes before filing. Tax Garden's compliance team computes both scenarios and recommends the regime that minimizes your tax liability.
ITR Filing: ITR-4 vs ITR-3
Tax Rate Chart
ITR Form Selection for Contractors
Depends on whether you use presumptive taxation
Section 44AD with total income under Rs 50 lakh
Simpler form; no P&L or balance sheet required
Regular books (actual profit computation)
Full P&L account and balance sheet required
Turnover above Rs 3 crore
Exceeds Section 44AD turnover limit
Opted out of 44AD early
Must file ITR-3 for the five excluded years
Company
Companies cannot use Section 44AD or ITR-4
Source: CBDT ITR Forms Notification; Section 58, Income Tax Act 2025
ITR-4 (Sugam) Checklist for Contractors
- Turnover from all contract work entered correctly
- Digital and cash receipts split correctly for 6%/8% computation
- TDS credits from AIS / Form 26AS reconciled
- Advance tax paid (single installment by March 15)
- Bank account details updated
ITR-3 Checklist for Contractors
- Profit and loss account and balance sheet prepared from books of accounts
- Contract income matched with TDS certificates (Form 131 / old Form 16A)
- AIS and Form 26AS downloaded and reconciled with books
- Sub-contractor TDS deducted and deposited; Form 140 filed for all quarters
- GST returns (GSTR-3B, GSTR-1) filed and reconciled with income
- Advance tax installments verified
- Business expense vouchers, invoices, and receipts organized for at least 6 years
- Depreciation schedule updated for new assets (machinery, vehicles, equipment)
- Old vs new tax regime comparison computed; optimal regime selected
- Tax audit report filed by October 31 (if applicable)
- ITR-3 filed by July 31 (non-audit cases) or October 31 (audit cases)
- Self-assessment tax paid before filing
ITA 2025 Section Mapping
The Income Tax Act 2025 replaced the 1961 Act effective April 1, 2026. Key sections relevant to contractors have been renumbered:
| Old Section (IT Act 1961) | New Section (IT Act 2025) | Provision |
|---|---|---|
| 194C | 393(1) Sl.6(i), codes 1023/1024 | TDS on contractor/sub-contractor payments |
| 44AD | 58 (Sl. No. 1) | Presumptive taxation for business |
| 44AA | 62 | Books of accounts |
| 44AB | 63 | Tax audit |
| 40(a)(ia) | 21(d) | Disallowance for non-deduction of TDS |
| 194M | 393 (specific entry) | TDS by individuals/HUFs on large payments |
| 80C | 123 | Deductions (PPF, ELSS, LIC, etc.) |
| 80D | 124 | Health insurance deduction |
| 234B | (consolidated) | Interest on default in advance tax |
| 234C | (consolidated) | Interest on deferment of advance tax |
For the complete mapping table, see our Income Tax Act 2025 section mapping guide.
Common Mistakes Contractors Make
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Not deducting TDS on sub-contractor payments. This is the costliest mistake. The 30% disallowance under Section 40(a)(ia) makes the tax cost of non-compliance far higher than the TDS amount itself. If you pay sub-contractors more than Rs 1 lakh in a year, you must deduct TDS.
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Opting out of Section 44AD before five years. A contractor who files under 44AD for two years and then switches to regular books is locked out of presumptive taxation for the next five years. Plan your tax strategy for five years, not one.
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Reporting gross contract value as income instead of profit. Under Section 44AD, your income is 6%/8% of turnover. Under regular books, your income is revenue minus expenses. Reporting the full contract value as income without deducting costs (in ITR-3) or without applying the presumptive rate (in ITR-4) results in massive over-taxation.
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Ignoring the material-labour split on invoices. Not separating material cost from labour charges on invoices means TDS is deducted on the full amount instead of just the service portion. For a Rs 20 lakh invoice where Rs 14 lakh is material, proper invoicing saves Rs 1,400 in TDS deduction (1% of Rs 14 lakh).
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Missing the GST registration threshold. Contractors with turnover exceeding Rs 20 lakh (Rs 10 lakh in special category states) must register for GST. Operating without registration means you cannot charge GST, cannot claim ITC on material purchases, and face penalties if detected.
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Not reconciling TDS from multiple clients. Contractors often work with multiple clients in a year. Each client deducts TDS independently. If any client fails to deposit TDS with the government, the credit will not appear in your Form 26AS. Reconcile every quarter using AIS and Form 26AS.
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Treating capital expenditure as revenue expense. Purchasing a new excavator for Rs 15 lakh is a capital expense to be depreciated, not a revenue expense to be fully deducted in one year. Claiming the full amount as a business expense in one year will be disallowed on assessment.
Tax Garden Can Help
Contractors juggle TDS credits from clients, TDS obligations to sub-contractors, GST on works contracts, advance tax estimates on lumpy project income, and the choice between presumptive and regular taxation. Getting any of these wrong creates disproportionate penalties.
Tax Garden's compliance plans handle all of this. We reconcile your contract income with TDS entries, compute presumptive or actual profit based on what saves you most tax, file Form 140 for sub-contractor TDS, prepare your ITR-4 or ITR-3, and ensure every deduction is claimed. If tax audit applies, we prepare the Form 3CD report.
