CDBL vs BD Tax Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CDBL
This app provides a secure and efficient way to manage securities transactions through a computerized book entry system. It eliminates the need for physical certificates, reducing risks and simplifying the settlement and transfer of ownership.
- Computerized book entry system
- Securities account management
- Electronic transfer of ownership
- Eliminates physical certificates
- Secure transaction settlement
- Information Security Management System certified
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Central Depository Bangladesh Limited (CDBL) was incorporated on 20 th August 2000 sponsored by the country's Nationalized Commercial Banks (NCBs), Investment Corporation of Bangladesh (ICB), Private Commercial Banks (PCBs), Foreign Banks, Merchant Banks, Publicly listed Companies, Insurance Companies and Dhaka & Chittagong Stock Exchanges with the collaboration of the Asian Development Bank (ADB). Legal basis for CDBL's operations is set out in the Depositories Act 1999, Depositories Regulations 2000, Depository (User) Regulations 2003, and the CDBL by-laws. CDBL's core services cover the efficient delivery, settlement and transfer of securities through computerized book entry system i.e. recording and maintaining securities accounts and registering transfer of securities; changing the ownership without any physical movement or endorsement of certificates and execution of transfer instruments. The Central Depository System (CDS) operated by CDBL has proved to be a convenient and reliable means to settle securities transaction. The investor has been freed from the hassles of physical handling of certificates, errors in paper work and the risks associated with damaged, lost and forged certificates. Live operations of the CDS commenced with the inauguration of the Electronic Government Securities Registry (EGSR) by the Governor of Bangladesh Bank on 20 th October 2003. The EGSR also serves as a platform for secondary market sale/purchase as well as Repo transactions of government securities to commercial banks linked online to the CDS. Equity market securities de materialization process i.e. eliminating physical certificate as record of security ownership by substituting it as an electronic book entry record in the CDS commenced on 24 th January 2004 with the entry of Square Pharmaceuticals Limited into the CDS. CDBL has achieved an ISO/IEC 27001:2013 certificate on Information Security Management System conforming to the specifications of ISO/IEC 27001:2013 and the best practices adopted in ISO/IEC 27002:2013.
BD Tax Calculator
Estimate income tax and check tax audit status for Bangladeshi taxpayers. Supports various taxpayer categories and investment rebates, with an offline tax audit checker and an in-app tax FAQ.
- Income tax estimation
- Investment rebate calculation
- Tax audit status checker
- Supports multiple taxpayer categories
- Offline audit check
- Tax FAQ section
- Bangla and English language support
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BD Tax Calculator helps Bangladeshi taxpayers estimate income tax and check tax audit status in one free app—available in বাংলা and English. CALCULATE YOUR INCOME TAX Enter your gross salary and the app calculates estimated tax using the included Bangladesh income-tax rules. It considers basic pay, house rent, medical and conveyance exemptions, then applies the relevant tax slabs for your selected taxpayer category. Supported taxpayer categories include: • General taxpayer • Women taxpayer • Senior citizen (65+) • Third gender or person with disability • Wounded freedom fighter or injured July fighter Switch between supported assessment years to compare year-specific tax slabs, tax-free limits, minimum tax and investment-rebate rules. INVESTMENT REBATE CALCULATOR Add eligible investments such as DPS, DSE shares, Sanchayapatra, mutual funds and life insurance. The app estimates your tax rebate using the applicable income-based and investment-based limits. TAX AUDIT CHECKER Enter a 12-digit TIN to check whether it appears in the bundled tax-audit dataset. Where available, results include the related tax zone, circle, category, assessment year and audit-selection status. The audit check works entirely offline. The entered TIN is not sent to our server or NBR. TAX FAQ Browse and search common questions about Bangladesh income tax, returns, e-TIN, e-Return, tax rebates and related topics in Bangla or English. PERSONALISE YOUR EXPERIENCE • Bangla and English languages • Light and dark appearance • Multiple dark-mode colour palettes • Configurable default taxpayer category • Quick access to official government tax-service links PRIVACY No account or login is required. Tax calculations and audit checks are performed on your device, and your entered tax information is not stored as a personal tax record. The app displays ads through Google AdMob and uses Firebase Cloud Messaging for optional push notifications. These services may process device identifiers or related technical information as explained in our Privacy Policy. We never sell the tax information you enter. IMPORTANT DISCLAIMER BD Tax Calculator is an independent informational tool. It is not affiliated with, endorsed by, or an official product of the National Board of Revenue (NBR), the Government of Bangladesh or any other government organisation. Calculations are estimates only and do not constitute professional tax, financial or legal advice. Always verify figures and filing requirements using official NBR guidance or consult a qualified tax professional before submitting a return. Privacy Policy: https://taxhelperbd.com/privacy.html Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: CDBL at none against BD Tax Calculator's shown. CDBL also leads on monetization model (free vs ad-supported) and device support (3 vs 1). On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for CDBL against 5.0 for BD Tax Calculator. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
CDBL ships an update every 6 days, BD Tax Calculator every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | CDBL | BD Tax Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 6 days | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 79 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Central Depository Bangladesh Limited | MD SHAHANUL HAQUE |
Customer experience
CDBL
BD Tax Calculator
In-app purchases
CDBL
No in-app purchases
BD Tax Calculator
No in-app purchases









