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Microlesson · 5-min read

AS 22 — Calculating DTA/DTL: The 4-Column Method

## Calculating Deferred Tax: The Standard 4-Column Method

Every AS 22 DT calculation uses the same framework. Practise this until it is automatic.

### The 4-Column Table

ParticularsBooks (Accounting)TaxDifferenceDT @ [Rate]% → DTA or DTL
Item nameBook amountTax amountBook − TaxorTax − BookDiff × Rate → classify

---

### Classification Rule (Expense Items)

ComparisonWho paid more tax?Create
Tax expense > Book expensePaid less tax today (tax got more deduction)DTL
Book expense > Tax expensePaid more tax today (book got more deduction)DTA

### Classification Rule (Income/Revenue Items)

ComparisonWho paid more tax?Create
Tax income > Book incomePaid more tax todayDTA
Book income > Tax incomePaid less tax todayDTL

---

### The Universal Test (works for both expenses and income)

> Step 1: Compare tax actually paid vs. book tax expense.

> Step 2: Paid MORE tax today → DTA. Paid LESS tax today → DTL.

---

### Netting DTA and DTL

When a company has both timing differences in the same year:

  • Compute each item's DT separately
  • Net them on the P&L (DTL − DTA = net charge, or DTA − DTL = net credit)
  • Each balance sheet line (DTA account, DTL account) moves independently

---

### Profit Statement Presentation (Ques 2 style)

```

Profit Before Depreciation & Tax: ₹6,40,000

Less: Depreciation (as per books): ₹2,80,000

Profit Before Tax: ₹3,30,000

Less: Tax Expense

Current Tax: ₹1,32,000

Deferred Tax (net): NIL ₹1,32,000

Profit After Tax: ₹1,98,000

```

Working Note — Deferred Tax:

ParticularsBooksTaxDifferenceDT @ 40%
Depreciation (asset 1)2,80,0001,90,00090,00036,000 DTA
Depreciation (asset 2)30,0001,20,00090,00036,000 DTL
NetNIL

When two depreciation differences perfectly offset, net deferred tax = 0.

Worked example

### Example 1

### Revenue Recognised Earlier in Books than Tax (Tax Rate 35%)

Year X0–X1: Company recognises ₹11L revenue in books but only ₹7L is taxable this year.

ParticularsBooksTaxDifferenceDT @ 35%Type
Revenue11,00,0007,00,0004,00,000₹1,40,000DTL

Books earned ₹4L more than taxed → will pay tax on it in future → DTL.

Year X1–X2 (partial reversal): Tax now catches up — ₹18L taxable vs ₹16L in books.

ParticularsBooksTaxDifferenceDT @ 35%Type
Revenue16,00,00018,00,0002,00,000₹70,000DTL Reversal

Year X2–X3 (remaining reversal): ₹23L taxable vs ₹21L books → DTL Reversal ₹70,000

Verification: DTL created ₹1,40,000 = Total reversed (₹70,000 + ₹70,000) ✓

### Example 2

### GST Expense Disallowed in Current Year (Tax Rate 30%)

GST expense ₹5,00,000 booked in accounts; not deductible in tax in the current year (will be allowed later).

ParticularsBooksTaxDifferenceDT @ 30%Type
GST Expense5,00,000NIL5,00,000₹1,50,000DTA

Paid more tax today (expense not yet deductible) → future saving → DTA = ₹1,50,000.

### Example 3

### Depreciation Difference Where Books > Tax → DTA (Tax Rate 40%)

Note the reversal: here book depreciation (70L) exceeds tax depreciation (42L).

ParticularsBooksTaxDifferenceDT @ 40%Type
Depreciation70L42L28L₹11.2 lakhsDTA

Books show more expense than tax → paid more tax today → future deduction in tax → DTA.

(This arises when, e.g., a one-time accelerated book write-down exceeds the tax rate.)

### Example 4

### Share Issue Expenses — Timing DTA (Tax Rate 40%)

19-20: Share issue expenses ₹70L in books; only ₹7L allowed in tax this year.

YearBooksTaxDifferenceDT @ 40%Type
19-2070L7L63L25.2LDTA Created
20-21NIL7L7L2.8LDTA Reversal
21-22 and beyondNIL7L each7L each2.8L eachDTA Reversal

Total reversals over 9 years = 9 × 2.8L = 25.2L = DTA Created ✓

⚠️ Common exam mistakes

  • For revenue items, getting the DTA/DTL direction backwards — book revenue > tax revenue means DTL (will owe more tax later), not DTA
  • Forgetting to net DTA and DTL for P&L presentation — only the net figure is the deferred tax expense/income
  • Using the absolute difference in the wrong direction — always check who paid more tax, not just which number is bigger
  • Missing the verification step: sum of all reversals across years should exactly equal the original creation amount
Reference:
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