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Session 9.1-P-2 1
Risk Analysis & Statistical Sampling
Application in Sales Tax Audit
Session 9.1-P-2 2
Introduction
Not necessary or desirable to
examine everything
Session 9.1-P-2 3
Objective
Scientific Selection of casesNumber of files audited reducedDerive audit assurance
Session 9.1-P-2 4
Application at two levels
Selection of wardSelection of dealer
Session 9.1-P-2 5
Selection of Ward…
Present SystemNumber of dealers 500 = 1 pointTax Collection 5 cr = 1 point
>45 cr=10 points
Session 9.1-P-2 6
Selection of Ward…
Units planned for audit
ST annual units 81
ST Triennial units 11
Units to be audited in a year 92
Session 9.1-P-2 7
Selection of Ward…
Proposed SystemNumber of dealers 500 = 1 pointTax Collection
Sr # Collection (Rs Cr) Points
1 <10 52 10-40 103 >=40 20
Session 9.1-P-2 8
Selection of Ward…
Periodicity
Sr # Consolidated Weightage Periodicity
1 <10 Triennial
2 11-20 Biennial
3 >=20 Annual
Session 9.1-P-2 9
Selection of Ward…
Proposed Periodicity for Audit
Sr # Periodicity # of Wards
1 Annual 25
2 Biennial 66
3 Triennial 15
Total 106
Session 9.1-P-2 10
Selection of Ward
Hence will audit
Sr # Periodicity # of Wards
1 ST Annual 25
2 ST Biennial 33
3 ST Triennial 5
Total 63
Session 9.1-P-2 11
Selection of Dealer…
Present SystemBased on GTOSelection of cases> 75 lakh 100%
< 75 lakh 20%Demand and collection register
Session 9.1-P-2 12
Risks
Inherent RiskRisk that error will occur in the first placeDetermine for each dealer
Control RiskRisk that internal controls will fail to detect the errorDetermine for ward as a whole
Session 9.1-P-2 13
Inherent Risk Factors…
1 GTO includes– Interstate sales– Exports– Sales within a state– Branch transfers– Job work/works contract
H 10 >10 cr
M 6 5-10 cr
L 2 <5 cr
Session 9.1-P-2 14
Inherent Risk Factors…
2 Purchase on forms
3 Purchase on ST- 35I
H 10 C, ST-35, F
M 6 Any 2
L 2 Any 1
Purchase on ST 35I Sale on form
H 10 ST35
M 6 C
L 2 By charging tax
Session 9.1-P-2 15
Inherent Risk Factors…
4 Branch transfer
5 No purchase form & commodity is a last point item
Purchase Sale
H 6 F F
M 2 F
Purchase Sale
H 5 No form No form
M 3 No form ST – 1
L 1 Last point item Transfer of stock
Local Form
Session 9.1-P-2 16
Control Risk Factors
Determined for a ward1 Summary & scrutiny assessment
– Summary Assessment • upto Rs 1 cr• Filed returns in time• Paid due tax
– Scrutiny Assessment• Issue Notice• Assess the amount of tax
Session 9.1-P-2 17
Control Risk Factors
Summary as a % of Total assessment
H 10 40%
M 6 20-40%
L 2 Below 20%
STO WD 8Cases assessed # of casesunder summary
2000-01 357 923 38.67%2001-02 327 972 33.64%
Session 9.1-P-2 18
Control Risk Factors
2 Cases Assessed within last 30 days% of assessment done in last
30 days
H 10 60%
M 6 30-60%
L 2 Below 30%
STO WD 8Assessed in # of caseslast 30 days
2000-01 478 923 51.78%2001-02 450 972 46.29%
Session 9.1-P-2 19
Control Risk Factors
3 Internal Audit
STO WD 8 : Internal audit was carried out last year
4 Geographical Areas
STO WD 8 : Traders
H 6 More than 5 years
M 4 2 to 5 years
L 2 Internal audit carried out
H 6 Manufacturing units like Okhla
M 4 Traders
L 1 Others like Naya Bazaar
Session 9.1-P-2 20
Control Risk Factors
5 Work Load
6 Previous Audit Experience
STO WD 8 : Outstanding IIA Paras
# of cases
H 8 2000-4000
M 6 800-2000
L 2 <800
H 6 DPs processed
M 4 Outstanding IIA paras
L 2 Others
Session 9.1-P-2 21
Control Risk Factors
7 Non-production of recordsRecords not produced
H 6 >80%
M 4 40-80%
L 2 <40%
Session 9.1-P-2 22
Methodology
Selection of WardSTO WD 8 was selectedEarlier annual now biennial unit– # of traders 2278– Total tax collections 3609.72 lacs– Consolidated weightage 14
Mainly tradersAssessments for 2000-01 & 2001-02
Session 9.1-P-2 23
Methodology
Delhi Online Sales Tax (DOST) data is in Oracle 7.1Imported in IDEADifferent modulesR.C. No as key field
Session 9.1-P-2 24
Methodology...
Population of Running DealersInherent criteria were given weights 3 Categories of Dealers- – High– Medium– Low
Random selection of sample
Session 9.1-P-2 25
Methodology...
List of dealers to be audited– Name– Registration #– GTO
Control Risk Medium
Session 9.1-P-2 26
Methodology
n = Z2 p(1-p)/E2
where,
n = sample size
z = score
p = proportion
= 7/150
= No of IIA paras No of cases seen
E = precision
= 3%
Session 9.1-P-2 27
Sample Size : 2000-01
Range Points # of dealers Sample Size
High >=16 38 38
Medium 8-16 285 102
Low <8 861 71
Total 1184 211
According to present system : 418 cases
Sample size : 211 cases
Session 9.1-P-2 28
Sample Size : 2001-02
Range Points # of dealers Sample Size
High >=16 37 37
Medium 8-16 277 102
Low <8 870 71
Total 1184 210
According to present system : 421 cases
Sample size : 210 cases
Session 9.1-P-2 29
Documents in Dealer File
RCForms Issue SheetUtilization AccountsReturnsChallansFinal accountsSales SummaryForms furnished by DealerST RegisterAssessment Order
Session 9.1-P-2 30
Check List…
I Purchases other than tax paidAllowed in RCLocal + Central + Tax paid purchase = PurchasesPurchases in Assessment record > Purchases in trading accountMateriality = 0.5%
Session 9.1-P-2 31
Check List…
II Sale1. First Point
• Purchase on ST 35-I & sold against ST 35• Purchase on ST 35 & sold on ST 35• Scheduled items sold on ST 35• Purchased on ST 35 & used in manufacturing of Tax free items• Whether allowed in RC• First point items sold on ST 1• Good purchased on ST 35 for trading and manufacturing interchanged• Goods purchased on ST 35 transferred out of Delhi• Materiality = 0.5%
Session 9.1-P-2 32
Check List…
2 Tax Paid Items• Purchased from Delhi• Last point item sale• Verified from Seller• Materiality = 0.5%
3 Last Point Item• Transferred out of Delhi• Payment of Tax claimed as tax paid item• Materiality = 0.5%
Session 9.1-P-2 33
Check List…
4 Sale against C form• Dispatch particular• S No of bills & tally with Sales Tax Register• Materiality = 1.0%
5 Sale against D form• Dispatch particular• Interstate sale• Sale against D form to government department• Materiality = 0.5%
Session 9.1-P-2 34
Check List…
6 Sale against E forms• Movement of goods• Purchase on C forms• Materiality = 0.5%
7 Stock transfer• Movement of goods• F form not there then A.O., stock register, GR & copy of
RC• Materiality = 0.5%
Session 9.1-P-2 35
Check List…
8 Export(a) CA Certificates
• RBI permission• Import/Export code #• Exported & cleared in same year• Certificate entries justified• Export value realization• Name & address of foreign buyer• Shipping Bill• Duly signed by CA & Assessee
Session 9.1-P-2 36
Check List…
8 Export(b) Documents in lieu of CA certificate
• Shipping Bill & Bank realization certificate• Signed by Customs• Sale of tradable license taxed
• Goods purchased against ST 49 or H formsMateriality = 1.0%
Session 9.1-P-2 37
Check List…
III Manufacturing DealersSale price includes excise dutyRate of Tax commodityRaw material purchases after payment of taxMateriality = 1.0%
Session 9.1-P-2 38
Check List…
IVScrutiny of formsDeclarations from RDDuly filled & signed by purchasing dealer– Bill details– Good sold details
Purchasing dealer has RC for goods purchasedMateriality = 0.5%
Session 9.1-P-2 39
Pilot Study
Audit of STO Ward 8
Year Selected Cases
Made Available
2000-01 211
2001-02 210
37
Session 9.1-P-2 40
Pilot Study…
Ms Enrich Agro Food– In the year 2000-01– Tax not levied on a part of GTO– Tax effect = Rs. 9.52 lakh– GTO = Rs. 1913.47 lakh– GTO not taxed/ Total GTO=2.38%
Session 9.1-P-2 41
Pilot Study…
Ms Orient Paper Mills– In the year 2001-02– Irregular grant of Exemption on defective forms– Tax effect = Rs. 56.5 lakh– Total amount of ST1 forms = Rs. 1870.11 lakh– % of Value of defective ST 1 /Total Value of ST 1
=32%
Session 9.1-P-2 42
Pilot Study…
Ms Star Paper Mills– In the year 2001-02– Irregular grant of Exemption on defective forms– Tax effect = Rs. 72.97 lakh– Total amount of ST1 forms = Rs. 5145.58 lakh– % of Value of defective ST 1 /Total Value of ST 1
=15.02%
Session 9.1-P-2 43
Sample Size
Determine safety margin in view of non production of records
Session 9.1-P-2 44
Advantage
Cases selected prior to auditTime saved Predefined Checks Checklist help less experienced to contribute Audit Assurance
Session 9.1-P-2 45
Constraints
Reliability of DOST – No of Dealers as per DCR and Database not
matching– Sale on “Central Form” not shown– Commodity not shown
GTO figures are not always presentManpower constraintsIntroduction of VAT
Session 9.1-P-2 46
Thank You