| compounding.default | 12 per year | যাচাই হয়নি | banksbd.org DPS calculator https://www.banksbd.org/banking-tools/dps-calculator.html (says DPS is usually compounded monthly); calculatebd.com https://calculatebd.com/dps-calculator-bd (monthly); calculatorlib https://calculatorlib.com/dps-maturity-calculator-bangladesh-calculator (assumes quarterly, seen in a search snippet only) | 2026-11-13 | Default pre-selection is monthly. Calculator sites disagree and no bank or regulator text was found. FDR compounding NOT FOUND, so the same default is used for FDR. Choose your bank's rule. |
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| fdr-compounding.bank-rule | — | মান পাওয়া যায়নি | No bank or regulator text found (research/fdr-dps-savings/research.md, section 1) | 2026-11-13 | How banks compound FDR interest is not found; the visitor chooses. |
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| tds.with-tin | 10 percent | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites Income Tax Act s.53F | 2026-07-10 | Reference only, not used as a default (tax stays empty). banksbd.org and calculatebd.com show the same figure but may copy each other; no official text read; a FY2026-27 change was NOT FOUND. |
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| tds.without-tin | 15 percent | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites Income Tax Act s.53F | 2026-07-10 | Reference only, not used as a default (tax stays empty). banksbd.org and calculatebd.com show the same figure but may copy each other; no official text read; a FY2026-27 change was NOT FOUND. |
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| excise.free-limit.fy2025-26 | 300000 BDT | একাধিক সূত্রে মিলেছে | The Bangladesh Today https://thebangladeshtoday.com/?p=28916 (2025-06-02); Daily Star https://www.thedailystar.net/business/economy/news/govt-may-raise-excise-duty-free-deposit-limit-tk-5-lakh-4174311 (2026-05-13) | 2026-05-13 | Duty-free balance limit for FY2025-26 (two independent news sources, no official page read). Duty is charged yearly on the highest balance reached. |
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| excise.free-limit.fy2026-27-proposal | 400000 BDT | যাচাই হয়নি | Daily Star https://www.thedailystar.net/business/bangladesh-budget-2026-27/news/excise-duty-exemption-threshold-bank-deposits-rises-tk-4-lakh-4196436 (also jagonews24.com and dailynewnation.com, seen in search results) | 2026-06-11 | FY2026-27 budget PROPOSAL only (three outlets agree it was proposed). Enactment, effective date and the new slab table NOT FOUND. Pre-budget reports said Tk 5 lakh. |
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| excise.slab.300001-500000 | 150 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 3,00,001 to 5,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.500001-1000000 | 500 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 5,00,001 to 10,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.1000001-5000000 | 3000 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 10,00,001 to 50,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.5000001-10000000 | 5000 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 50,00,001 to 1,00,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.10000001-20000000 | 10000 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 1,00,00,001 to 2,00,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.20000001-50000000 | 20000 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of Tk 2,00,00,001 to 5,00,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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| excise.slab.above-50000000 | 50000 BDT per year | একটি সূত্রে পাওয়া | Arthonitee rates https://www.arthonitee.com/rates (secondary guide, not an official source); cites SRO No. 159-Law/2025/287, effective 2025-07-01 | 2026-07-10 | FY2025-26 annual duty for a highest balance of above Tk 5,00,00,000. Reference only; the 2026-27 slab table was NOT FOUND. |
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