Tax for plumbers in India

Indian plumbers are taxed as a business, so presumptive taxation under Section 44AD (6% of digital receipts, 8% of other) is the natural fit, not the 50% professional scheme under Section 44ADA, which does not apply to trades. GST registration is required at Rs 20 lakh of service turnover, plumbing/works-contract is generally 18% with input credit, and a business that subcontracts to you deducts TDS at 1% (individual) under Section 194C.

Last reviewed: 29 May 2026

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Indian plumbers usually run as sole proprietors and are taxed as a BUSINESS, so presumptive taxation under Section 44AD (a deemed 6% of digital receipts or 8% of other receipts) is the simplest fit, not the 50% professional scheme under Section 44ADA, which does not apply to trades. GST registration bites at Rs 20 lakh of service turnover (Rs 40 lakh if you mainly supply goods), works-contract and labour are generally taxed at 18% with input credit, and when you work as a subcontractor to a business, that business deducts TDS under Section 194C.

What business structure do plumbers use?

The common patterns for plumbers are: Sole proprietor, simplest admin, suits most domestic plumbers; pair with presumptive 44AD, Partnership / LLP, where two or more plumbers work together and want shared liability and capital, Private limited, useful at scale for builder contracts, limited liability and salary-vs-dividend planning. The right structure depends on revenue, liability exposure, and personal circumstances, covered below.

Vehicle and travel costs

If you keep regular books, a work vehicle is a business asset: claim depreciation on the relevant block of assets (Section 32) plus running costs. If you use presumptive taxation under Section 44AD, depreciation is deemed already allowed, the deemed 6%/8% profit is after notional depreciation, and the asset's written-down value is still reduced for any future capital-gains computation. Most small plumbers find 44AD simpler than tracking actual vehicle costs.

Capital allowances and equipment

Under regular books, tools and a work vehicle go into the plant-and-machinery block and attract depreciation at the prescribed rate (generally 15% WDV for plant and machinery). Under Section 44AD you do not separately claim depreciation, it is treated as already allowed, but keep purchase invoices so the written-down value is correct if you later sell the asset.

Cash is 14% of receipts, above 5%, so the 44AD limit is Rs 2 crore (he is well within it). Deemed profit under 44AD: 6% of Rs 24 lakh digital = Rs 1,44,000, plus 8% of Rs 4 lakh cash = Rs 32,000, total deemed income Rs 1,76,000. Tax on that (new regime, below the Rs 4 lakh basic exemption) is nil, so no income tax due, though he still files. The Rs 9,000 of 194C TDS already deducted is fully refundable/adjustable via his return. He charges 18% GST on works-contract invoices and claims input credit on materials. Advance tax, if any, is a single instalment by 15 March under presumptive.

Common audit triggers for plumbers

• Cash receipts exceeding 5% of turnover while claiming the Rs 3 crore 44AD limit
• Receiving Rs 2 lakh or more in cash from one party in a day (Section 269ST breach)
• GST turnover not matching the 44AD turnover declared in the return
• Cash expenses over Rs 10,000 to one party in a day (disallowed under Section 40A(3))
• Not registering for GST after crossing Rs 20 lakh service turnover
• TDS credit in Form 26AS/AIS (194C) not reconciled against income reported

Last reviewed: 29 May 2026