custom accounting & billing software

Accounting software built around
your company's exactfinancial workflow.

Generic accounting SaaS forces your finance team into rigid templates and ongoing monthly fees. We engineer custom, ACID-compliant accounting & billing software with local VAT rules, bKash/Nagad integration, and 100% code ownership.

Build your accounting system See core modules

100%

ACID compliant

Monthly user rent

Calculation error

24/7

Auto invoice sync

double-entry general ledger

vat 6.3 compliant

accounts.yourcompany.com

Monthly Revenue

৳ 2,485,000 Net

Paid Invoices

342

Pending Receivables

৳ 180k

Invoice #INV-2026-089PAID (bKash)

NBR VAT 15% Included • Auto Reconciled

Search invoices, ledgers, vouchersaudited

Corporate Finance/Retail & Wholesale/Manufacturing/Export / Import/Service Agencies

// core accounting modules

Financial precision without complexity.

Tailored invoicing, ledger automation, and tax report compliance built specifically for your finance team.

Automated invoicing & billing

Generate professional PDF invoices, recurring subscriptions, and auto payment reminders.

NBR VAT & Tax compliance

Built-in VAT calculation, withholding tax, and automated VAT 6.3 report generation.

Double-entry general ledger

Complete chart of accounts, journal entries, trial balance, P&L, and balance sheets.

Local payment gateway integration

Accept bKash, Nagad, cards, and bank transfers with instant invoice status reconciliation.

Bank-grade audit trail

Every transaction, update, and deletion is recorded in an unalterable activity audit log.

Multi-currency & multi-branch

Handle transactions in BDT, USD, EUR, and consolidate finances across multiple branches.

// development timeline

Six steps to financial clarity.

A structured roadmap ensuring exact mathematical precision and seamless user handoff.

DISCOVER

Map accounting rules

We map your chart of accounts, tax/VAT rules, and invoicing cycles.

DESIGN

Financial architecture

Double-entry engine design, approval rules, and audit trail specs.

BUILD

Agile sprints

Two-week cycles building billing modules, ledgers, and payment gateways.

TEST

Financial audit & reconciliation

Zero-margin math testing, tax calculation checks, and security audits.

LAUNCH

Opening balance import

Migrate legacy account balances, train finance staff, and launch.

SUPPORT

Ongoing compliance

Support plans for regulatory updates, tax modifications, and upgrades.

// why custom accounting

Custom Accounting vs. QuickBooks / Tally.

What changes when you build bespoke financial software compliant with local tax regulations.

What matters to you

Custom Software

Off-the-shelf SaaS

NBR VAT 6.3 & Local Tax Rules

Built-in automated

Manual workaround

bKash / Nagad Auto-Reconciliation

Native API support

Not supported

Monthly user license fees

$0 / month

Expensive recurring rent

Financial data location

Your private server

Shared third-party server

Custom voucher approvals

100% tailored

Fixed workflow limits

// tech architecture

Enterprise financial tech stack.

ACID-compliant transaction handling with high-performance reporting generators.

Frontend & Reports

ReactNext.jsPDF/Excel Generators

Financial Core

Node.jsPostgreSQL (ACID compliant)Redis

Integrations

bKash / Nagad APISSLCommerzBank APIs

// why softzen it

Engineers with financial software expertise.

We build accounting platforms that streamline audits, eliminate calculation errors, and save hours of manual data entry.

Fintech engineering team

Engineers experienced in building double-entry ledgers, banking APIs, and tax automation engines.

Fixed sprint schedule

Clear milestones with live preview demos after every sprint.

Full code & data rights

Your financial source code, schemas, and reports are 100% owned by your organization.

Built for audit readiness

Export-ready reports formatted for external auditors and NBR tax authorities.

// faq

Accounting software FAQs.

Generic accounting software charges ongoing per-user license fees and struggles with local tax rules (e.g., NBR VAT, AIT, withholding tax) or custom billing cycles. Custom accounting software is built 100% around your financial workflows, compliant with local regulations, and owned outright by you with $0 recurring fees.

Yes! You can set automated billing schedules (monthly, quarterly, annual), generate PDF invoices automatically, and trigger automated WhatsApp, SMS, and email payment reminders to clients before and on due dates.

Yes. We integrate local & international payment gateways (bKash, Nagad, Rocket, SSLCommerz, Shurjopay, Stripe) as well as bank statement reconciliation for automatic invoice status updates.

Security is paramount. All financial transactions, double-entry ledgers, and invoice records are protected with bank-grade AES-256 encryption, granular user role permissions, and full audit trail logging.

Yes. The platform includes one-click PDF and Excel export for Balance Sheets, Profit & Loss (P&L) statements, Trial Balances, Ledger Books, and VAT 6.3 report formats.

Let's Engineer Your Next Product Together

Schedule a consultation with our technical architects to discuss your goals, requirements, and deployment timeline.

Start a Project

Accounting software built aroundyour company's exactfinancial workflow.