Bangladesh VAT

Bangladesh VAT Return Skill (Mushak-9.1) v2.0

Section 1 — Quick reference

Read this whole section before classifying anything. The workflow runbook is in vat-workflow-base Section 1 — follow that runbook with this skill providing the country-specific content.

Quick reference table

Field	Value
Country	Bangladesh (People's Republic of Bangladesh)
Standard rate	15%
Reduced rates	5%, 7.5%, 10% (specified goods/services via SRO)
Turnover tax	4% (BDT 50 lakh–3 crore turnover); 3% (BDT 30–50 lakh)
Zero rate	0% (exports, deemed exports, supplies to diplomats)
Return form	Mushak-9.1 (monthly VAT return); Turnover Tax return (quarterly)
Filing portal	https://vat.gov.bd (Mushak Online Portal)
Authority	National Board of Revenue (NBR)
Currency	BDT (Bangladeshi Taka)
Filing frequencies	Monthly (VAT registered); Quarterly (turnover tax)
Deadline	Within 15 days after end of period
Companion skill (Tier 1, workflow)	vat-workflow-base v0.1 or later — MUST be loaded
Contributor	Open Accounting Skills Registry
Validated by	Pending local practitioner validation
Validation date	Pending

Key Mushak-9.1 sections

Part	Meaning
Part 1	Entity information (BIN, name, period)
Part 2	Output tax on local sales (standard + reduced rates)
Part 3	Output tax on exports (zero-rated)
Part 4	Exempt supplies
Part 5	Total output tax (derived: sum of Part 2)
Part 6	Input tax on local purchases (from Mushak-6.1)
Part 7	Input tax on imports (from Bill of Entry)
Part 8	Total input tax credit (derived: Part 6 + Part 7)
Part 9	Net tax payable or credit carried forward (Part 5 minus Part 8)
Part 10	Supplementary Duty (if applicable)
Part 11	Interest / penalty (if late)
Part 12	Total payable (derived: Parts 9 + 10 + 11)

Conservative defaults — Bangladesh-specific values

Ambiguity	Default
Unknown rate on a sale	15%
Unknown VAT status of a purchase	Not deductible
Unknown counterparty location	Domestic Bangladesh
Unknown registration type	VAT registered (standard)
Unknown business-use proportion	0% recovery
Unknown blocked-input status	Blocked
Unknown whether transaction is in scope	In scope

Red flag thresholds

Threshold	Value
HIGH single-transaction size	BDT 500,000
HIGH tax-delta on a single conservative default	BDT 30,000
MEDIUM counterparty concentration	>40% of output OR input
MEDIUM conservative-default count	>4 across the return
LOW absolute net VAT position	BDT 1,000,000

Section 2 — Required inputs and refusal catalogue

Required inputs

Minimum viable — bank statement for the month in CSV, PDF, or pasted text. Must cover the full period. Acceptable from any Bangladeshi bank: Dutch-Bangla Bank, BRAC Bank, Eastern Bank, City Bank, Standard Chartered BD, HSBC BD, Islami Bank, or any other.

Recommended — sales invoices (Mushak-11) for the period, purchase invoices with supplier BIN, the client's BIN in writing (13 digits).

Ideal — complete Mushak-6.1 (purchase register), Mushak-6.2 (sales register), prior period Mushak-9.1, reconciliation of excess credit brought forward.

Refusal policy if minimum is missing — SOFT WARN. If no bank statement is available at all, hard stop. If bank statement only without invoices, proceed but record in the reviewer brief: "This Mushak-9.1 was produced from bank statement alone. The reviewer must verify that input VAT claims are supported by compliant Mushak-11 invoices bearing supplier BIN and that all classifications match supporting documents."

Bangladesh-specific refusal catalogue

• R-BD-1 — Turnover tax client attempting to claim input VAT — Turnover tax payers pay a flat 3%/4% on turnover and cannot recover input VAT. This skill can prepare the turnover tax return but cannot calculate input VAT recovery for a turnover tax client. (Trigger: client is turnover tax registered (annual turnover BDT 30 lakh to BDT 3 crore).)
• R-BD-2 — Export Processing Zone (EPZ) entity — EPZ/SEZ entities have special VAT rules outside the standard Mushak-9.1 framework. Please escalate to a qualified chartered accountant familiar with EPZ obligations. (Trigger: client operates in an EPZ or Special Economic Zone.)
• R-BD-3 — Multi-establishment with separate BINs — Each BIN files a separate Mushak-9.1 with inter-establishment transfers on Mushak-6.4. This requires consolidation analysis beyond this skill. Please use a qualified practitioner. (Trigger: client has multiple business units each with a separate BIN.)
• R-BD-4 — Supplementary Duty computation — Supplementary Duty rates vary widely (7.5%–500%) and SD is calculated before VAT. This requires specialist product-level analysis. Please escalate to a qualified chartered accountant. (Trigger: client manufactures or imports goods subject to Supplementary Duty (tobacco, alcohol, vehicles, SIM cards).)
• R-BD-5 — Withholding VAT agent obligations — VDS withholding obligations require tracking of Mushak-6.10 certificates and deposit schedules. Out of scope for standard return preparation. Please use a qualified practitioner. (Trigger: client is a designated VDS withholding agent (government entity, bank, NGO, listed company).)

Section 3 — Supplier pattern library (the lookup table)

This is the deterministic pre-classifier. When a transaction's counterparty matches a pattern in this table, apply the treatment directly. Do not second-guess.

How to read this table. Match by case-insensitive substring on the counterparty name as it appears in the bank statement. If multiple patterns match, use the most specific. If none match, fall through to Tier 1 rules in Section 5.

3.1 Bangladeshi banks (fees exempt — exclude)

3.1 Bangladeshi banks table

Pattern	Treatment	Notes
DUTCH-BANGLA, DUTCH BANGLA, DBBL	EXCLUDE for bank charges/fees	Financial service, exempt
BRAC BANK, BRAC BNK	EXCLUDE for bank charges/fees	Same
EASTERN BANK, EBL	EXCLUDE for bank charges/fees	Same
CITY BANK, ISLAMI BANK, AB BANK	EXCLUDE for bank charges/fees	Same
STANDARD CHARTERED BD, HSBC BD	EXCLUDE for bank charges/fees	Same
UCBL, PRIME BANK, MUTUAL TRUST	EXCLUDE for bank charges/fees	Same
INTEREST, MUNAFA, PROFIT	EXCLUDE	Interest income/expense, out of scope
LOAN, REPAYMENT	EXCLUDE	Loan principal movement, out of scope

3.2 Government, regulators, and statutory bodies (exclude entirely)

3.2 Government table

Pattern	Treatment	Notes
NBR, NATIONAL BOARD OF REVENUE	EXCLUDE	Tax payment, not a supply
VAT DEPARTMENT, MUSHAK	EXCLUDE	VAT payment
CUSTOMS, SHULKO	EXCLUDE	Customs duty (but import VAT on Bill of Entry is claimable)
BIDA, BOI, RJSC	EXCLUDE	Regulatory/licence fees
RAJUK, CDA, KDA	EXCLUDE	Development authority fees
INCOME TAX, TAX DEDUCTED	EXCLUDE	Income tax payment

3.3 Utilities

3.3 Utilities table

Pattern	Treatment	Return section	Notes
DESCO, DPDC, BPDB, NESCO, BREB	Domestic 15%	Part 6	Electricity — overhead
TITAS GAS, BAKHRABAD GAS, JALALABAD GAS	Domestic 15%	Part 6	Gas utility
WASA, DHAKA WASA, CHITTAGONG WASA	Domestic 15%	Part 6	Water supply
GRAMEENPHONE, GP, ROBI, BANGLALINK, TELETALK	Domestic 15%	Part 6	Telecoms — overhead (note: 15% SD also applies to mobile services)

3.4 Insurance (exempt — exclude)

3.4 Insurance table

Pattern	Treatment	Notes
SADHARAN BIMA, JIBAN BIMA	EXCLUDE	Government insurance, exempt
GREEN DELTA, PRAGATI, PIONEER	EXCLUDE	Insurance premium, exempt
METLIFE BD, GUARDIAN LIFE	EXCLUDE	Same

3.5 Digital payments and mobile financial services

3.5 Digital payments table

Pattern	Treatment	Notes
BKASH, B-KASH	EXCLUDE for transaction fees	Financial service, exempt
NAGAD	EXCLUDE for transaction fees	Same
ROCKET, DBBL MOBILE	EXCLUDE for transaction fees	Same
UPAY, SURE CASH	EXCLUDE for transaction fees	Same

3.6 Payroll and social security (exclude entirely)

3.6 Payroll table

Pattern	Treatment	Notes
SALARY, BETON, WAGES	EXCLUDE	Wages — outside VAT scope
PROVIDENT FUND, PF	EXCLUDE	Employee benefit, out of scope
GRATUITY	EXCLUDE	Employee benefit

3.7 SaaS and international digital services (reverse charge)

3.7 SaaS table

Pattern	Billing entity	Treatment	Notes
GOOGLE, GOOGLE ADS	Google (US/IE entity)	Self-assess 15%	Non-resident digital service
MICROSOFT, AZURE, OFFICE 365	Microsoft (US/IE)	Self-assess 15%	Same
META, FACEBOOK ADS	Meta (US/IE)	Self-assess 15%	Same
AMAZON AWS, AWS	Amazon (US/LU)	Self-assess 15%	Same
ZOOM, SLACK, DROPBOX	US entities	Self-assess 15%	Same
CANVA, FIGMA, NOTION	Non-resident	Self-assess 15%	Same

3.8 Professional services (Bangladesh)

3.8 Professional services table

Pattern	Treatment	Return section	Notes
CA FIRM, AUDIT, CHARTERED ACCOUNTANT	Domestic 15%	Part 6	Deductible if business purpose
ADVOCATE, LAWYER, BARRISTER	Domestic 15%	Part 6	Legal services
CONSULTANT, ENGINEERING	Domestic 15%	Part 6	Professional overhead

3.9 Property and rent

3.9 Property and rent table

Pattern	Treatment	Notes
RENT, BHARA, OFFICE RENT	Domestic 15% if commercial with VAT invoice	Part 6
HOUSE RENT, RESIDENTIAL	EXCLUDE	Residential lease, exempt

3.10 Internal transfers and exclusions

3.10 Internal transfers table

Pattern	Treatment	Notes
OWN TRANSFER, INTERNAL, ACCOUNT TRANSFER	EXCLUDE	Internal movement
DIVIDEND	EXCLUDE	Out of scope
CASH WITHDRAWAL, ATM	TIER 2 — ask	Default exclude; ask what cash was spent on
DIRECTOR FEE, PROPRIETOR DRAWING	EXCLUDE	Out of scope

Section 4 — Worked examples

These are six fully worked classifications drawn from a hypothetical bank statement of a Dhaka-based self-employed IT consultant.

Example 1 — Standard domestic sale at 15%

Example 1 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
05.04.2026	ABC TECHNOLOGIES LTD	+115,000	+100,000	15,000	15%	Part 2 (output)	N	—

Input line: 05.04.2026 ; ABC TECHNOLOGIES LTD ; CREDIT ; Invoice BD-2026-041 IT consultancy ; BDT 115,000

Reasoning: Domestic sale of IT consulting services to a BDT-paying local company. Standard 15% applies. The gross amount includes VAT. Net = BDT 100,000, VAT = BDT 15,000. Report in Mushak-9.1 Part 2. Mushak-11 tax invoice must be issued.

Example 2 — Local purchase with input tax credit

Example 2 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
10.04.2026	COMPUTER SOURCE BD	-23,000	-20,000	3,000	15%	Part 6 (input)	N	—

Input line: 10.04.2026 ; COMPUTER SOURCE BD ; DEBIT ; Office supplies ; BDT -23,000

Reasoning: Purchase from a local VAT-registered supplier. Assuming valid Mushak-11 held with supplier BIN. Net = BDT 20,000, VAT = BDT 3,000 at 15%. Input VAT claimable in Part 6.

Example 3 — Export, zero-rated

Example 3 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
15.04.2026	STUDIO KREBS GMBH	+350,000	+350,000	0	0%	Part 3 (export)	N	—

Input line: 15.04.2026 ; STUDIO KREBS GMBH ; CREDIT ; Invoice BD-EXP-018 Software development ; BDT 350,000

Reasoning: Export of IT services. Zero-rated under VAT & SD Act 2012 Section 24. Report in Mushak-9.1 Part 3 at 0%. Input VAT on related purchases is fully recoverable. Bank realization certificate required within 6 months.

Example 4 — Non-resident digital service (reverse charge)

Example 4 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
18.04.2026	GOOGLE IRELAND LIMITED	-2,800	-2,800	420	15%	Part 2 (output) + Part 6 (input)	N	—

Input line: 18.04.2026 ; GOOGLE IRELAND LIMITED ; DEBIT ; Google Workspace April ; BDT -2,800

Reasoning: Service from non-resident. No VAT on invoice. Client must self-assess VAT at 15% under reverse charge (Section 18(3)). Self-assessed output = BDT 420. If used for taxable supplies, input credit of BDT 420 also claimable. Net effect zero for fully taxable client.

Example 5 — Blocked input: passenger vehicle

Example 5 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
22.04.2026	TOYOTA BANGLADESH	-85,000	-85,000	0	—	—	Y	"Vehicle: blocked"

Input line: 22.04.2026 ; TOYOTA BANGLADESH ; DEBIT ; Lease payment Corolla ; BDT -85,000

Reasoning: Passenger vehicle lease. Input VAT blocked under VAT & SD Act 2012 Section 49 — personal consumption / passenger vehicle unless transport business. IT consultant does not qualify. Full block, zero recovery.

Example 6 — Bank charges, excluded

Example 6 output table

Date	Counterparty	Gross	Net	VAT	Rate	Return section	Default?	Excluded?
30.04.2026	DUTCH-BANGLA BANK	-500	—	—	—	—	N	"Exempt financial service"

Input line: 30.04.2026 ; DUTCH-BANGLA BANK ; DEBIT ; Monthly maintenance fee ; BDT -500

Reasoning: Bank charges are exempt financial services. No VAT. Exclude from VAT return entirely.

Section 5 — Tier 1 classification rules (compressed)

5.1 Standard rate 15% (VAT & SD Act 2012, Section 15)

• Standard rate application — Default rate for any taxable supply unless a reduced rate, zero rate, or exemption applies. Sales go to Mushak-9.1 Part 2. Purchases go to Part 6. (VAT & SD Act 2012, Section 15)

5.2 Reduced rates (Third Schedule, various SROs)

• Reduced rates application — 5%, 7.5%, or 10% on specified goods/services as gazetted via Statutory Regulatory Orders. Each reduced rate has its own line in Part 2. Check current SRO schedule before classifying. (Third Schedule, various SROs)

5.3 Zero rate (Section 24-25)

• Zero rate application — Exports of goods (with customs documentation), deemed exports (EPZ supplies), supplies to diplomats, international transport. Report in Part 3. Input VAT on related purchases fully recoverable. (Section 24-25)

5.4 Exempt supplies (First Schedule)

• Exempt supplies — Agricultural products, certain food items, education, health services, land transport, financial services. Report in Part 4. No output VAT, no input VAT recovery on related costs. (First Schedule)

5.5 Input tax credit — eligibility (Section 45-52)

• Input tax credit eligibility — Purchase must be used for making taxable supplies. Valid Mushak-11 with supplier BIN required. Claim within 3 return periods from invoice date. (Section 45-52)

5.6 Input tax credit — apportionment

• Apportionment formula — creditable input = total input x (taxable supplies / total supplies) (If business makes both taxable and exempt supplies. Annual adjustment required. Flag for reviewer.)

5.7 Blocked input VAT (Section 49)

• Blocked input VAT categories — Zero VAT recovery regardless of other rules: personal consumption, passenger vehicles (unless transport business), entertainment (unless documented promotion), purchases without valid Mushak-11, purchases from unregistered suppliers, goods lost/stolen/destroyed (unless insured), free samples (unless documented promotional). Check blocked status FIRST before applying any recovery. (Section 49)

5.8 Imports

• Import VAT — VAT at 15% on (assessable value + customs duty). Paid at customs. Input credit claimable in Part 7 if goods used for taxable supplies.

5.9 Reverse charge on imported services (Section 18(3))

• Reverse charge on imported services — Non-resident service provider with no BIN: client self-assesses 15% output VAT. Input credit claimable if used for taxable supplies. Net effect zero for fully taxable client. (Section 18(3))

5.10 Capital goods

• Capital goods treatment — Full credit in period of acquisition if used entirely for taxable supplies. If mixed use (taxable and exempt), apportionment applies — flag for reviewer.

5.11 Credit notes (Section 57)

• Credit notes treatment — Supplier reduces output VAT in period of credit note. Buyer reverses input VAT. Both update Mushak-6.1/6.2. Register in Mushak-6.2.1. (Section 57)

5.12 Time of supply (Section 14)

• Time of supply rule — VAT chargeable at the earlier of: invoice date, payment receipt, or delivery. Advance payments trigger VAT at receipt. (Section 14)

5.13 Turnover tax (simplified)

• Turnover tax rule — Turnover tax payers file quarterly. Rate: 4% (BDT 50 lakh–3 crore) or 3% (BDT 30–50 lakh). No input credit. No reverse charge. Report total turnover and flat-rate tax only.

Section 6 — Tier 2 catalogue (compressed)

6.1 Fuel and vehicle costs

• Fuel and vehicle costs guidance — Pattern: petrol station, CNG, Padma Oil, Jamuna Oil. Why insufficient: vehicle type unknown. If passenger car, blocked. If commercial vehicle for business, deductible. Default: 0% recovery. Question: "Is this for a commercial vehicle used exclusively for business?"

6.2 Entertainment and meals

• Entertainment and meals guidance — Pattern: restaurant, hotel dining, catering. Why insufficient: entertainment blocked unless documented business promotion. Default: block. Question: "Was this documented promotional entertainment with supporting records?"

6.3 Ambiguous SaaS billing entities

• Ambiguous SaaS billing guidance — Pattern: Google, Microsoft, Meta, Amazon where legal entity not visible. Why insufficient: same brand can bill from various entities. Default: self-assess 15% reverse charge. Question: "Could you check the invoice for the legal entity name and country?"

6.4 Round-number incoming transfers

• Round-number incoming transfers guidance — Pattern: large round credit from owner-matching name. Default: exclude as proprietor injection. Question: "Is this a customer payment, your own capital injection, or a loan?"

6.5 Incoming transfers from individuals

• Incoming transfers from individuals guidance — Pattern: incoming from private-looking counterparties. Default: domestic sale at 15% (Part 2). Question: "Was this a sale? If so, what goods/services?"

6.6 Cash withdrawals

• Cash withdrawals guidance — Pattern: ATM, cash withdrawal. Default: exclude as proprietor drawing. Question: "What was the cash used for?"

6.7 Mixed-use phone and internet

• Mixed-use phone and internet guidance — Pattern: Grameenphone, Robi, Banglalink personal lines. Default: 0% recovery if mixed use. Question: "Is this a dedicated business line or personal/mixed?"

6.8 Rent payments

• Rent payments guidance — Pattern: monthly rent to landlord. Default: no input credit (no invoice assumed). Question: "Does the landlord issue a Mushak-11 with their BIN?"

6.9 Outgoing transfers to individuals

• Outgoing transfers to individuals guidance — Pattern: outgoing to private names. Default: exclude as drawings/wages. Question: "Was this a contractor payment with invoice, wages, or personal transfer?"

6.10 Import-related payments

• Import-related payments guidance — Pattern: LC, shipping, freight forwarder. Why insufficient: need Bill of Entry to determine VAT paid at customs. Default: exclude until Bill of Entry provided. Question: "Please provide the customs Bill of Entry showing VAT paid."

Section 7 — Excel working paper template (Bangladesh-specific)

The base specification is in vat-workflow-base Section 3. This section provides the Bangladesh-specific overlay.

Sheet "Transactions"

Columns A-L per the base. Column H ("Return section") accepts: Part 2, Part 3, Part 4, Part 6, Part 7, or blank for excluded transactions. For reverse-charge transactions, enter "Part 2 + Part 6" in column H.

Sheet "Return Summary"

Return Summary formula table

| Part 2 | Output tax on local sales | =SUMIFS(Transactions!F:F, Transactions!H:H, "Part 2") | | Part 3 | Export sales (zero-rated) | =SUMIFS(Transactions!E:E, Transactions!H:H, "Part 3") | | Part 4 | Exempt supplies | =SUMIFS(Transactions!E:E, Transactions!H:H, "Part 4") | | Part 5 | Total output tax | =Return_Summary!C[Part2_row] | | Part 6 | Input tax local purchases | =SUMIFS(Transactions!F:F, Transactions!H:H, "Part 6") | | Part 7 | Input tax imports | =SUMIFS(Transactions!F:F, Transactions!H:H, "Part 7") | | Part 8 | Total input tax credit | =C[Part6_row]+C[Part7_row] | | Part 9 | Net tax payable | =C[Part5_row]-C[Part8_row] | | Part 12 | Total payable | =MAX(C[Part9_row],0) |

Sheet "Return Form"

Final Mushak-9.1-ready figures. If Part 8 > Part 5, excess credit carried forward (no refund claim via this skill).

Section 8 — Bank statement reading guide

Follow the universal exclusion rules in vat-workflow-base Step 6, plus these Bangladesh-specific patterns.

CSV format conventions. Dutch-Bangla and BRAC Bank exports typically use comma delimiters with DD/MM/YYYY dates. Common columns: Date, Description, Debit, Credit, Balance.

Bengali/Bangla language variants. Some descriptions may appear in Bangla script. Treat transliterated equivalents the same as English.

Internal transfers and exclusions. Own-account transfers between client's DBBL, BRAC, bKash accounts. Always exclude.

Proprietor draws. Self-employed sole proprietors cannot pay themselves wages. Any transfer to personal account is a drawing. Exclude.

bKash/Nagad transactions. Mobile financial service transactions appear as "BKASH", "NAGAD". Transaction fees are exempt. The underlying payment may be a sale or purchase — classify based on counterparty, not the payment method.

Foreign currency transactions. Convert to BDT at the transaction date rate. Use Bangladesh Bank reference rate.

Section 9 — Onboarding fallback (only when inference fails)

9.1 Entity type

Inference: sole trader names match account holder; company names end in "Ltd", "Limited", "Pvt Ltd". Fallback: "Are you a sole proprietor, partnership, or company?"

9.2 Registration type

Inference: if asking for Mushak-9.1, VAT registered. If turnover below BDT 3 crore, may be turnover tax. Fallback: "Are you VAT registered (BIN holder, 15%) or turnover tax (3-4%)?"

9.3 BIN

Inference: 13-digit BIN may appear in payment descriptions. Fallback: "What is your 13-digit BIN?"

9.4 Filing period

Inference: first and last transaction dates. Monthly for VAT registered. Fallback: "Which month does this cover?"

9.5 Industry

Inference: counterparty mix, sales descriptions. Fallback: "What does the business do?"

9.6 Exempt supplies

Inference: presence of medical/educational/financial income. Fallback: "Do you make any VAT-exempt sales?" If yes and significant, apportionment required.

9.7 Exports

Inference: foreign currency incoming, foreign counterparties. Fallback: "Do you export goods or services?"

9.8 Credit brought forward

Not inferable. Always ask: "Do you have excess credit from the prior period?"

Section 10 — Reference material

Sources

1. Value Added Tax and Supplementary Duty Act 2012 — Sections 2, 5, 14, 15, 18, 24, 25, 45-52, 57, 107, 109-130
2. VAT & SD Rules 2016 — Rules 40-47, Mushak form series
3. NBR Statutory Regulatory Orders (SROs) for reduced rates and exemptions
4. NBR Mushak Online Portal — https://vat.gov.bd

Known gaps

1. Supplier pattern library covers major Bangladeshi banks and utilities but not every local vendor. Add patterns as they emerge.
2. Supplementary Duty computation is refused (R-BD-4) — a future version should add SD for common categories.
3. SRO-based reduced rates change frequently. Verify current SRO schedule before each filing period.
4. Multi-establishment (separate BIN) consolidation is refused (R-BD-3).
5. Worked examples are for a hypothetical IT consultant in Dhaka. Sector-specific examples (garments, pharmaceuticals) should be added in v2.1.

Change log

• v2.0 (April 2026): Full rewrite to Malta v2.0 ten-section structure. Supplier pattern library added (Section 3). Worked examples added (Section 4). Tier 1 rules compressed (Section 5). Tier 2 catalogue added (Section 6). Excel template specification added (Section 7). Bank statement reading guide added (Section 8). Onboarding moved to fallback role (Section 9).
• v1.1: Previous monolithic version with full Mushak form mappings and test suite.

Self-check

1. Quick reference at top with return sections and conservative defaults: yes (Section 1).
2. Supplier library as literal lookup tables: yes (Section 3, 10 sub-tables).
3. Worked examples: yes (Section 4, 6 examples).
4. Tier 1 rules compressed: yes (Section 5, 13 rules).
5. Tier 2 catalogue compressed: yes (Section 6, 10 items).
6. Excel template specification: yes (Section 7).
7. Onboarding as fallback: yes (Section 9, 8 items).
8. All 5 Bangladesh-specific refusals present: yes (Section 2).
9. Reference material at bottom: yes (Section 10).
10. Blocked input VAT explicit: yes (Section 5.7 + Example 5).

Disclaimer

This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional before filing or acting upon.

The most up-to-date, verified version of this skill is maintained at openaccountants.com.