Custom Accounting Software Development for Invoicing, GST and Reconciliation

A focused integration, such as pushing invoices from your system into Tally or Xero, typically costs ₹60,000–1.75 lakh (about $900–2,700). A custom invoicing and receivables system usually runs ₹1.75–4.75 lakh. Full ERP-lite platforms or multi-tenant accounting products start around ₹4.75 lakh. We quote a fixed price once scope is agreed.

If a standard package handles your process with minor workarounds, keep it. Custom work makes sense when staff spend hours each week re-entering data, when your billing model is unusual, or when you need a workflow those tools cannot support. Often the best answer is a small custom layer that feeds your existing accounting package.

Yes. We integrate with the Invoice Registration Portal through an authorised GST Suvidha Provider to generate IRNs and signed QR codes, and can generate e-way bills too. The system validates GSTINs and HSN codes before submission to reduce rejections. Whether e-invoicing applies to you depends on your turnover; your CA can confirm that.

Yes. Tally integrations are usually done by generating vouchers and masters in Tally's XML format, either imported manually or posted automatically to a Tally instance on your network. Your accountant keeps working in Tally as usual while sales, receipts and expenses arrive from the new system with the correct ledgers.

Yes. We configure VAT, sales tax or GST rules for your jurisdiction and integrate with Xero or QuickBooks Online, which most accountants in those markets already use. For UK VAT submissions and similar filings, we recommend connecting through your accounting package rather than building direct filing, which keeps the compliance burden with a recognised provider.

Data is encrypted in transit and at rest, access is controlled by role, and every create, edit or delete is recorded in an audit log. Closed periods can be locked. We design with the DPDP Act 2023 in India and GDPR or UK GDPR for European clients in mind, and back up data automatically.

We migrate masters such as customers, vendors, items and ledgers, plus opening balances and open invoices, from Excel, Tally exports or other packages. Full transaction history can be migrated where the source data is clean. We reconcile totals after migration and run a parallel month before switching over.

Yes to both. We are a small in-house team in Tiruppur, Tamil Nadu, and our accounting software development services, from invoicing and reconciliation to full accounting products, are delivered remotely to clients across India and abroad, using video calls, screen sharing and a staging system you can log in to at any time. If you were looking for custom software development near me because you want to meet the team, clients in and around Tiruppur can meet us at our office in Arulpuram by appointment.

Lists of the top custom software development companies rarely tell you whether a team understands double-entry. Ask any company you shortlist to show you a ledger or invoicing system they have built, explain how they handle period locking and audit trails, and give you a fixed quote against a written scope. The best custom software development company for you is the one whose answers your accountant is happy with.

Support plans cover bug fixes, updates for tax rule and rate changes, adjustments when Tally, Zoho, QuickBooks or Xero change their APIs, security patches and small enhancements each month. You choose a plan based on how often you expect changes.