Custom Accounting Software: Features, Integrations, Success Factors, Financial Outcomes

Custom Accounting Software - ScienceSoft

ScienceSoft applies 32-year experience in custom software development and practical knowledge of 30+ industries to help businesses build effective accounting solutions tailored to their accounting needs.

Custom Accounting Software: The Essence

Custom accounting software provides tailored functionality for business-specific accounting needs across general ledger, payables and receivables management, asset and inventory accounting, invoice generation and processing, payroll and tax management, financial data consolidation and reconciliation, localized financial reporting, and more.

To ensure real-time financial data sync, custom accounting solutions may integrate with CRM, HRMS, an inventory management system, asset management software, a financial planning and analysis solution, and other business-critical systems.

The implementation of custom accounting software may take 6 – 10 months. The costs for building the custom accounting system start from $200,000 and may grow above $400,000, depending on the solution complexity. Annual ROI for custom accounting software may reach up to 290%.

Key Features of Custom Accounting Software

Custom accounting software has unique functionality to serve specific accounting needs. We have summarized fundamental accounting software features based on our experience with custom accounting software projects.

Journal entry management

  • Rule-based creation, update and approval of journal entries in the general ledger and subledgers on external and intercompany financial transactions, including multi-currency transactions.
  • Customizable journal entry templates.
  • User-defined schedules for recurring and reversing journal entries.
  • Automated attachment of source documents (invoices, receipts, cheques, payroll reports, leases, etc.) to each journal entry.

General ledger (GL)

  • Configurable rules for GL coding and transaction classification by category (asset, liability, equity, etc.).
  • Multi-dimensional chart of accounts (COA) with user-defined dimensions, such as business units, regions, product lines, etc.
  • Creating custom formulas to calculate debit and credit amounts, GL balances (by period, account, COA dimension, etc.).
  • Customizable GL architecture to support complex multi-entity accounting.
  • Rule-based consolidation of GL account balances across multiple business entities (company branches, subsidiaries, etc.).


  • User-defined rules for invoice generation and submission to customers.
  • Customizable invoice templates.
  • Configurable workflow for multi-department invoice approval.
  • Real-time invoice tracking by status (sent, received, paid, overdue, etc.).

Payroll management

  • Creating custom formulas to calculate employee salaries, overtime, bonuses, commissions, deductions, etc.
  • Recording and tracking the calculated payroll amounts in the payroll ledger and the general ledger.
  • Customizable schedules on employee payments.

Accounts receivable (A/R)

  • Creating custom formulas to automatically calculate received, due and overdue amounts, DSO, total revenue by period, etc.
  • Automated payment collection via user-defined payment methods, including bank transfers, wire transfers, ACH, credit cards, cheques.
  • Creating custom prioritization rules for A/R collection.
  • Configurable rules for allocation of received payments to relevant customer invoices.
  • Customizable customer notifications on due payments.

Accounts payable (A/P)

  • Creating custom formulas to calculate the amounts paid, partially paid, owed, total liabilities by period, etc.
  • Automated invoice validation against the corresponding purchase orders.
  • Creating custom prioritization rules for invoice routing for approval and payment.
  • Scheduled/ad-hoc payments via a user-defined payment method.
  • Rule-based notifications to accountants on due payments.

Inventory accounting

  • Recording and tracking inventory values of inventory items in multiple locations and regions
  • Recording and tracking inventory values across various stages of production (raw materials, in-progress goods, finished goods) or/and utilization.
  • Recording and tracking costs of goods sold for a specified accounting period.
  • Configurable rules to create inventory records based on purchase orders.

Fixed asset accounting

Calculating, recording and tracking:

  • Original costs, capitalized costs, and current value of fixed assets, including assets in multiple locations and regions.
  • Fixed asset value depreciation based on various calculation methods (straight line method, double declining balance method, units of production method, sum-of-the-years’ digits method, etc.), or custom depreciation schedules.
  • An asset’s tax basis.

Tax management

  • Creating custom formulas for automated calculation of VAT, sales, use, withholding, income, and other taxes based on the user-defined parameters and region-specific tax rates.
  • Recording and tracking data on the calculated tax amounts in the tax ledger and the general ledger.
  • Rule-based tax filing under region-specific regulations.
  • Customizable schedules on tax payments.


  • Rule-based reconciliation of financial data in bank statements with GL, A/P and A/R records.
  • Automated removal of duplicate transaction records.
  • User-defined rules to send the outstanding transactions for manual reconciliation.
  • Configurable elimination rules for automated intercompany reconciliation.

Analytics and reporting

  • Configurable dashboards on GL, A/R and A/P performance, cash inflows and outflows by the type of activity, current asset value, etc.
  • Short-term A/R and A/P forecasting.
  • Automated financial reporting (monthly, quarterly, yearly, etc.) by region, entity, user-defined COA dimension, etc.
  • Customizable templates for various financial reports, including balance sheet, profit and loss statement, statement of changes in equity, customer statement, tax summary, revenue recognition report, and more.
  • Configurable reporting periods for various GL books and business entities.

Security and compliance

  • Multi-factor authentication.
  • Configurable data-level permissions.
  • Role-based access control.
  • Payment data encryption.
  • Invoice timestamping.
  • Electronic signature workflow.
  • Comprehensive audit trail.
  • Customer data retention and deletion policies.
  • Compliance with GAAP (specifically ASC 606 and IFRS 15), SOC1 and SOC2, SOX, GDPR (for the EU), ZATCA regulations (for Saudi Arabia), industry- and country-specific regulations.

Get a Fully Tailored Accounting Solution

ScienceSoft’s team is ready to plan, build, and support custom accounting software, which adheres to your organization’s unique accounting processes.

Go-to Integrations for Custom Accounting Software

Go-to integrations for custom accounting software - ScienceSoft

Custom accounting software + CRM

To automatically populate invoices with accurate customer data, payment terms, price and quantity of ordered goods.

Custom accounting software + inventory management software

To enable accurate recording of inventory values on inventory purchasing and utilization.

Custom accounting software + asset management software

To enable accurate calculation of the fixed asset depreciation.

Custom accounting software + a procurement system

To enable the automated purchase order recording in the A/P ledger.

Custom accounting software + HR management software

To enable accurate payroll calculation.

Custom accounting software + a cash management system

To automatically create entries on financial transactions across operating, investment, financing activities in the general ledger and subledgers.

Custom accounting software + financial planning and analysis software

To support accurate financial performance analysis, financial planning, budgeting, and forecasting.

Custom accounting software + bank accounts

To enable faster reconciliation.

Custom accounting software + BI solution

To enable accounting analytics and reporting.

Success Factors for Custom Accounting Software

AI-driven accounting analytics

To get recommendations on the optimal payment queues and payment methods, depreciation calculation methods, and more.

Advanced data security methods

(multi-layer encryption, intelligent fraud detection, vulnerability scanning and patching, etc.). To control access to sensitive financial and business data, easily recognize non-compliant or fraudulent transactions, and minimize the risk of malicious user activities.

Cloud deployment

To reduce accounting software maintenance costs, enable faster updates, and provide easily accessible workspace for global collaboration on accounting processes.

Easy-to-use APIs and connectors

To streamline accounting software integration with your essential back-office systems and relevant third-party tools.

Custom Accounting Software Implementation Costs and Financial Outcomes

The cost of custom accounting software implementation varies greatly depending on:

  • The number and complexity of a solution’s functional modules.
  • The type of automation (RPA or AI-powered features).
  • The volume of data that needs to be migrated from spreadsheets and/or existing accounting software.
  • The type of accounting software deployment (cloud, on-premises, hybrid).
  • The number and complexity of integrations (with CRM, HRMS, asset management software, an inventory management system, a BI solution, etc.).

A custom accounting solution of average complexity requires $200,000 - $300,000 in investments, while building a complex accounting system for a large enterprise may cost $400,000+.

The annual ROI for custom accounting software may reach up to 290%.

Key benefits of custom accounting software

  • Up to 100%

    of business-specific accounting needs covered due to tailor-made functionality

  • 80%+

    improvement in accountants’ productivity due to automation of accounting processes

  • 90%

    improvement in bookkeeping accuracy due to eliminated manual errors

  • 90%

    improvement in visibility across accounting transactions

  • Up to 2x

    faster financial close due to rule-based reconciliation

  • Up to 2x

    reduction in DSO due to automated A/R collections

  • Faster

    approval of financial documents and payments due to configurable multi-department approval workflow

  • Simplified

    tax compliance due to automated tax calculation and filing

  • When Custom Accounting Software Is Your Best Choice

    ScienceSoft recommends building custom accounting software in the following cases:

    You need an accounting solution providing specific features, for example:

    • Applying user-defined events to trigger financial transaction processing.
    • Creating customized priority rules for A/P payment and A/R collection queues.
    • Custom payroll, tax, employee reimbursement calculations.
    • Verification of financial reports based on custom rules.
    • Intelligent GL balance forecasting by account.
    • Hedge accounting.
    • Accounting for crypto-assets.

    You need a business accounting solution providing compliance with local regulations in the regions your company operates.

    You need highly secure accounting software providing advanced tools to protect your sensitive financial and business data.

    You need to integrate accounting software with your custom legacy systems (CRM, HRMS, asset management system, cash management system, etc.) smoothly and cost-efficiently.

    Implementation of Custom Accounting Software with ScienceSoft

    With 32-year experience in custom software development and 14-year experience in accounting software development, ScienceSoft helps companies build effective accounting solutions tailored to their unique accounting needs.

    Accounting software consulting

    • Analysis of of your specific accounting needs.
    • Assessment of the existing accounting processes and tools.
    • Suggesting optimal features, architecture, and tech stack for the accounting solution.
    • Preparing an integration plan (with CRM, HRMS, asset management system, cash management software, etc.).
    • Implementation cost & time estimates, expected ROI calculation.

    Accounting software development

    • Analysis of your accounting needs’ specificity.
    • Accounting solution conceptualization.
    • Architecture design.
    • Accounting software development.
    • Integrating the custom accounting solution with back-office systems (CRM, HRMS, asset management system, cash management software, etc.).
    • Quality assurance.
    • User training.
    • Continuous support and evolution of accounting software (if required).

    About ScienceSoft

    ScienceSoft is an international IT consulting and software development company headquartered in McKinney, Texas. We provide consultancy and development services to help businesses build effective custom accounting software. Being ISO 9001 and ISO 27001 certified, we apply a mature quality management system and guarantee that cooperation with us does not pose any risks to our customers’ data security. If you are interested in developing a reliable accounting solution, turn to ScienceSoft’s team for custom accounting software.