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Chapter 1

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Time of Supply for Goods (Forward Charge)

Topic: Time of SupplyChapter: Chapter 1
ToSGoods, FC=Min(Date of Invoice, Last Date for Invoice, Date of Payment received)\text{ToS}_{\text{Goods, FC}} = \text{Min}(\text{Date of Invoice, Last Date for Invoice, Date of Payment received})
This formula determines the time of supply for goods under the forward charge mechanism. It is the earliest of three dates: the actual date of issue of the invoice by the supplier, the last date by which the supplier is legally required to issue the invoice (typically on or before removal of goods), or the date on which the supplier receives the payment.

Time of Supply for Services (Forward Charge - Invoice Issued Timely)

Topic: Time of SupplyChapter: Chapter 1
ToSServices, FC, Invoice Timely=Min(Date of Invoice, Date of Payment received)\text{ToS}_{\text{Services, FC, Invoice Timely}} = \text{Min}(\text{Date of Invoice, Date of Payment received})
Applicable when the supplier of services issues the invoice within the prescribed period (e.g., 30 days or 45 days for specified entities). The time of supply is the earlier of the date of issue of the invoice or the date of receipt of payment.

Time of Supply for Services (Forward Charge - Invoice Not Issued Timely)

Topic: Time of SupplyChapter: Chapter 1
ToSServices, FC, Invoice Not Timely=Min(Date of Provision of Service, Date of Payment received)\text{ToS}_{\text{Services, FC, Invoice Not Timely}} = \text{Min}(\text{Date of Provision of Service, Date of Payment received})
Applicable when the supplier of services fails to issue the invoice within the prescribed period. The time of supply is the earlier of the date of completion/provision of the service or the date of receipt of payment.

Time of Supply for Goods (Reverse Charge)

Topic: Time of SupplyChapter: Chapter 1
ToSGoods, RC=Min(Date of Receipt of Goods, Date of Payment, 61st Day from Invoice Date)\text{ToS}_{\text{Goods, RC}} = \text{Min}(\text{Date of Receipt of Goods, Date of Payment, 61st Day from Invoice Date})
This formula applies to goods taxable under the reverse charge mechanism. The time of supply is the earliest of three dates: the date of receipt of goods by the recipient, the date of payment made by the recipient, or the date immediately following 60 days from the date of issue of the invoice by the supplier.

Time of Supply for Services (Reverse Charge - General)

Topic: Time of SupplyChapter: Chapter 1
ToSServices, RC=Min(Date of Payment, 61st Day from Invoice Date)\text{ToS}_{\text{Services, RC}} = \text{Min}(\text{Date of Payment, 61st Day from Invoice Date})
This formula applies to services taxable under the reverse charge mechanism (excluding associated enterprises). The time of supply is the earlier of two dates: the date of payment made by the recipient, or the date immediately following 60 days from the date of issue of the invoice by the supplier.

Time of Supply for Services (Reverse Charge - Associated Enterprises)

Topic: Time of SupplyChapter: Chapter 1
ToSServices, RC, AE=Min(Date of Entry in Books of Recipient, Date of Payment)\text{ToS}_{\text{Services, RC, AE}} = \text{Min}(\text{Date of Entry in Books of Recipient, Date of Payment})
This specific rule applies when services are supplied by an associated enterprise located outside India. The time of supply is the earlier of the date of entry in the books of account of the recipient or the date of payment.

Time of Supply for Vouchers

Topic: Time of SupplyChapter: Chapter 1

\text{ToS}_{\text{Vouchers}} = \begin{cases} \text{Date of Issue of Voucher} & \text{if supply is identifiable} \ \text{Date of Redemption of Voucher} & \text{in other cases} \end{cases}

For vouchers, if the supply against which the voucher is issued is identifiable at the time of issue, the time of supply is the date of issue of the voucher. Otherwise, it is the date of redemption of the voucher.

Rule 42: Calculation of Common Credit for Inputs and Input Services (C2)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
C2=T−(T1+T2+T3)C_2 = T - (T_1 + T_2 + T_3)
T is the total Input Tax Credit taken on inputs and input services in a tax period. T_1 is ITC exclusively used for non-business purposes. T_2 is ITC exclusively used for exempt supplies. T_3 is ITC exclusively used for taxable supplies. C_2 represents the common credit remaining after excluding ITC for exclusive non-business, exempt, or taxable uses.

Rule 42: ITC Attributable to Non-Business Use (D1)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
D1=0.05×C2D_1 = 0.05 \times C_2
D_1 is the amount of common credit (C_2) deemed attributable to non-business purposes, calculated as 5% of C_2. This amount must be reversed or not availed.

Rule 42: ITC Attributable to Exempt Supplies (D2)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
D2=EF×C2D_2 = \frac{E}{F} \times C_2
D_2 is the amount of common credit (C_2) attributable to exempt supplies. E is the aggregate value of exempt supplies made during the tax period, and F is the total turnover of the registered person during the tax period. This amount must be reversed or not availed.

Rule 42: Net Eligible ITC for Inputs and Input Services

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
ITCEligible=T3+C2−(D1+D2)ITC_{Eligible} = T_3 + C_2 - (D_1 + D_2)
This formula calculates the final eligible ITC for inputs and input services after accounting for exclusive taxable use (T_3) and reversing the portions of common credit (C_2) attributable to non-business use (D_1) and exempt supplies (D_2).

Rule 43: Monthly Common Credit for Capital Goods (T_m)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Tm=Tc60T_m = \frac{T_c}{60}
T_c is the total Input Tax Credit on capital goods used for both taxable and exempt supplies. The useful life of capital goods is assumed to be 5 years (60 months) for ITC apportionment purposes. T_m represents the monthly common credit for such capital goods.

Rule 43: Monthly ITC Reversal for Exempt Supplies from Common Capital Goods (T_e)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Te=Tm×EFT_e = T_m \times \frac{E}{F}
T_e is the amount of monthly common credit (T_m) on capital goods attributable to exempt supplies. E is the aggregate value of exempt supplies made during the tax period, and F is the total turnover of the registered person during the tax period. This amount must be added to the output tax liability for the month. This calculation is done for each month of the capital good's useful life or until it ceases to be common.

Common Credit for Inputs/Input Services (Rule 42)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
C4=C−(C1+C2+C3)C_4 = C - (C_1 + C_2 + C_3)
Calculates the common credit (C4) on inputs and input services, which is used for both taxable/zero-rated and exempt supplies, or for business and non-business purposes. 'C' is total ITC, 'C1' is ITC for non-business, 'C2' for exempt supplies, 'C3' for taxable/zero-rated supplies.

ITC Attributable to Exempt Supplies (Inputs/Input Services - Rule 42)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
D1=Value of exempt suppliesTotal turnover in the State/UT×C4D_1 = \frac{\text{Value of exempt supplies}}{\text{Total turnover in the State/UT}} \times C_4
Calculates the portion of common credit (C4) on inputs and input services that is attributable to exempt supplies (D1). This amount is not eligible for ITC.

ITC Attributable to Non-Business Use (Inputs/Input Services - Rule 42)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
D2=5%×C4or based on actual usageD_2 = 5\% \times C_4 \quad \text{or based on actual usage}
Calculates the portion of common credit (C4) on inputs and input services that is attributable to non-business purposes (D2). This amount is not eligible for ITC. If actual usage is not identifiable, 5% of C4 is taken.

Eligible ITC for Inputs/Input Services (Rule 42)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
E=C3+(C4−D1−D2)E = C_3 + (C_4 - D_1 - D_2)
Calculates the final eligible input tax credit (E) for inputs and input services for a tax period. 'C3' is ITC exclusively for taxable/zero-rated supplies, 'C4' is common credit, 'D1' is ITC for exempt supplies, and 'D2' is ITC for non-business use.

Common Credit for Capital Goods (Total - Rule 43)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Tcommon=A−(Aexempt+Ataxable)T_{common} = A - (A_{exempt} + A_{taxable})
Calculates the total common credit (T_common) on capital goods over their useful life (60 months), which is used for both taxable/zero-rated and exempt supplies, or for business and non-business purposes. 'A' is total ITC on capital goods, 'A_exempt' is ITC exclusively for exempt supplies, 'A_taxable' for taxable/zero-rated supplies.

Monthly Common Credit for Capital Goods (Rule 43)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Tm=Tcommon60T_m = \frac{T_{common}}{60}
Calculates the monthly common credit (T_m) on capital goods by dividing the total common credit (T_common) by the useful life of the capital goods (assumed to be 60 months).

Monthly ITC Attributable to Exempt Supplies (Capital Goods - Rule 43)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Texempt=Value of exempt suppliesTotal turnover in the State/UT×TmT_{exempt} = \frac{\text{Value of exempt supplies}}{\text{Total turnover in the State/UT}} \times T_m
Calculates the monthly portion of common credit (T_m) on capital goods that is attributable to exempt supplies (T_exempt). This amount is not eligible for ITC.

Monthly ITC Attributable to Non-Business Use (Capital Goods - Rule 43)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Tnon_business=5%×Tmor based on actual usageT_{non\_business} = 5\% \times T_m \quad \text{or based on actual usage}
Calculates the monthly portion of common credit (T_m) on capital goods that is attributable to non-business purposes (T_non_business). This amount is not eligible for ITC. If actual usage is not identifiable, 5% of T_m is taken.

Monthly Eligible ITC for Capital Goods (Rule 43)

Topic: Apportionment and Blocked CreditsChapter: Chapter 1
Teligible=Tm−Texempt−Tnon_businessT_{eligible} = T_m - T_{exempt} - T_{non\_business}
Calculates the final monthly eligible input tax credit (T_eligible) for capital goods. 'T_m' is monthly common credit, 'T_exempt' is monthly ITC for exempt supplies, and 'T_non_business' is monthly ITC for non-business use.
Chapter 1 Formulas — CA Final | Kartavvya