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Goods and Services Tax (GST) and Corporate Tax Planning · Tax Planning and Nature of Business

Tax Planning for Specific Management Decisions

Updated 11 October 2026 · Fact-checked

Tax planning for specific management decisions means comparing the options in a decision, such as make or buy, own or lease, or repair or replace, on an after-tax basis. You compute the tax effect of each option, find the net cash cost or benefit, and choose the option with the best after-tax result.

Understand Tax Planning for Specific Management Decisions

A management decision is usually judged on cost. Tax changes that cost. Every rupee of deductible expense saves tax at the company's rate, and every rupee of taxable income attracts tax. So the real cost of an option is its after-tax cost, not its pre-tax cost.

Three decisions come up most often. Make or buy: produce a part in-house or buy it from outside. Own or lease: buy an asset with borrowed or own funds, or take it on lease. Repair or replace (also called retain, renewal or replacement): keep spending on an old asset or buy a new one. Shut down or continue is a related decision.

The tax angle differs for each. In make or buy, you compare the tax-adjusted cost of making (materials, labour, overheads, depreciation on plant) with the cost of buying (purchase price, which is fully deductible) and look at location incentives and any GST input credit. In own or lease, ownership gives depreciation and interest deductions, while a lease gives the rental as a deduction. In repair or replace, repair is revenue expenditure and is generally deductible in the year, while a new asset is capital expenditure that gives depreciation over time and may have a sale value for the old one.

Planning must stay within the law. You choose among genuine options that the law allows. You do not create an arrangement without commercial substance only to cut tax. Also use the rules for the tax year in question. Under the Income-tax Act, 2025, a business is taxed under the head "Profits and gains of business or profession" (section 26), so business expenses and depreciation reduce taxable business profit.

In exam answers, always give the decision in a clear line: the option you recommend, the numbers behind it, and the non-tax factors (quality, control, liquidity, risk) that might change the choice.

Key rules to remember

After-tax cost of a deductible expense
After-tax cost = Expense × (1 − tax rate)
Use for rent, repairs, purchase price of goods bought and interest. Assumes the business has enough taxable profit to use the deduction.
Tax saving on depreciation
Tax saving = Depreciation × tax rate
Depreciation is a non-cash item. Only the tax saving it produces is a cash benefit.
Net present cost of an option
NPC = Σ (after-tax cash outflow ÷ (1 + r)ⁿ) − PV of tax savings − PV of salvage value
Use the after-tax cost of capital for r. Pick the option with the lower net present cost.
Make or buy comparison
Make if after-tax cost of making < after-tax cost of buying
Include only relevant costs. Ignore fixed costs that continue either way.
Lease versus buy
Compare PV of after-tax lease rentals with PV of (purchase cost − depreciation tax shield − interest tax shield − salvage)
Discount at the after-tax cost of borrowing, since lease is a debt-like commitment.

How to solve Tax Planning for Specific Management Decisions questions

Use the same frame for any make or buy, own or lease or repair or replace question. Keep it after-tax and cash-based.

  1. 1Identify the decision and list the options clearly, for example Option A: buy; Option B: lease.
  2. 2List only relevant cash flows for each option. Drop sunk costs and costs common to both options.
  3. 3Mark which items are deductible revenue items (rent, repairs, interest, purchase price of inputs) and which are capital items that give depreciation.
  4. 4Apply the tax rate to each item to get after-tax cash flows. Add the depreciation tax shield separately.
  5. 5Discount the after-tax flows at the stated rate if the options run over several years. If the question gives one year, a simple comparison is enough.
  6. 6Compare the net cost or net benefit of each option and pick the better one.
  7. 7Add non-tax factors such as quality control, liquidity, obsolescence and reliability of supply, and then state your conclusion.

Quickest way: One-line after-tax comparison

When to use it: Use when the question gives a single-year or few-year cost comparison and a flat tax rate.

  1. Write each option's yearly cash cost in one column.
  2. Multiply deductible costs by (1 − tax rate).
  3. Subtract depreciation × tax rate for any owned asset.
  4. Compare the totals, and if years differ, discount at the given rate.
  5. Write a two-line conclusion with one non-tax factor.

Common mistakes in Tax Planning for Specific Management Decisions

  • Comparing pre-tax costs only

    Students copy the cost-accounting method and forget that expenses reduce tax.

    Fix: Convert every deductible item to after-tax cost using (1 − tax rate) before comparing.

  • Treating depreciation as a cash outflow

    Depreciation appears in the cost list, so it looks like a payment.

    Fix: Count only the tax saving on depreciation (depreciation × tax rate) as a cash inflow.

  • Including sunk or common costs in make or buy

    Students add all overheads to the make option.

    Fix: Include only costs that change with the decision. Fixed costs that continue if you buy are irrelevant.

  • Treating repair and replacement the same way

    Both involve spending on an asset.

    Fix: Repair is revenue and deductible at once. A new asset is capital and gives depreciation over time. Also deal with the sale value of the old asset.

  • Ignoring the discount rate in multi-year own or lease questions

    Students add undiscounted rentals and costs.

    Fix: Discount after-tax flows at the rate given, usually the after-tax cost of borrowing, and compare present values.

  • Recommending a tax-driven arrangement with no commercial purpose

    Students treat tax saving as the only goal.

    Fix: Frame the advice as a genuine business choice that the law allows, and mention commercial and legal factors.

Worked examples

Example 1

Alpha Ltd (tax rate 25%) can make a component in-house at a variable cost of ₹80 per unit, or buy it from a supplier at ₹95 per unit. It needs 10,000 units a year. Making needs no new asset and the fixed costs stay the same either way. Which option is cheaper after tax?

Show the solution
  1. Relevant cost of making = 10,000 × ₹80 = ₹8,00,000, as fixed costs are the same in both cases.
  2. After-tax cost of making = ₹8,00,000 × (1 − 0.25) = ₹6,00,000.
  3. Cost of buying = 10,000 × ₹95 = ₹9,50,000.
  4. After-tax cost of buying = ₹9,50,000 × 0.75 = ₹7,12,500.
  5. Difference = ₹7,12,500 − ₹6,00,000 = ₹1,12,500 in favour of making.

Answer: Make the component. The after-tax cost is ₹6,00,000 against ₹7,12,500 for buying, a saving of ₹1,12,500 a year. Check quality and capacity before finalising.

Example 2

Beta Ltd (tax rate 30%) needs a machine costing ₹10,00,000 for 2 years. Option 1: lease at ₹5,00,000 a year, paid at each year end. Option 2: buy it, claim depreciation of ₹4,00,000 in each of the two years, and sell it at the end of year 2 for ₹2,00,000 with no further tax effect. Ignore the discount rate and interest. Which is cheaper in total after tax?

Show the solution
  1. Lease: after-tax rental per year = ₹5,00,000 × 0.70 = ₹3,50,000.
  2. Total after-tax lease cost over 2 years = ₹3,50,000 × 2 = ₹7,00,000.
  3. Buy: cash outflow today = ₹10,00,000.
  4. Tax saving on depreciation = ₹4,00,000 × 0.30 = ₹1,20,000 a year, so ₹2,40,000 over 2 years.
  5. Sale proceeds = ₹2,00,000.
  6. Net cost of buying = ₹10,00,000 − ₹2,40,000 − ₹2,00,000 = ₹5,60,000.
  7. Compare: buying ₹5,60,000 against leasing ₹7,00,000.

Answer: On an undiscounted basis, buying is cheaper by ₹1,40,000 (₹5,60,000 against ₹7,00,000). A full answer should also discount the flows, consider financing cost and note that leasing keeps funds free.

Exam tips

  • Write the options, the tax rate used and your assumptions at the start. Case-based answers earn marks for clear reasoning.
  • Show each step of the after-tax calculation separately, so partial marks are possible even if the final number is off.
  • End every answer with a clear recommendation and at least one non-tax factor.
  • Use the tax rate given in the question. If none is given, state the rate you assume.
  • Mention that deductions depend on the business having enough taxable profit, and cite section 26 only for the business-income head.

Practice questions from Tax Planning and Nature of Business

Tax Planning for Specific Management Decisions in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Tax Planning for Specific Management Decisions: frequently asked questions

What is tax planning for make or buy decisions?

It is comparing the after-tax cost of producing a part in-house with the after-tax cost of buying it. You count only relevant costs, apply the tax rate to deductible items and add any depreciation tax shield. You then choose the cheaper option.

How do you decide between owning and leasing an asset for tax?

Compare the present value of after-tax lease rentals with the present value of the net cost of buying. The net cost of buying is the price less the depreciation and interest tax savings and the salvage value. Choose the lower figure and check cash and risk factors.

Is repair or replacement better for tax?

Neither is always better. Repair is a revenue expense, deductible at once, while replacement is capital expenditure that gives depreciation over time and may bring sale proceeds for the old asset. Compare after-tax cash flows for each.

Can tax saving be the only reason for a decision?

No. The decision should have commercial substance. Tax planning works within the law by choosing among real options. An arrangement made only to cut tax may be challenged.