Accounting Software
General ledger, financial reporting, bank reconciliation and multi-entity accounting — built to your chart of accounts, not a generic template.
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Invoicing & Billing Software Development
Every business eventually outgrows a spreadsheet and a PDF template. We build the invoicing software that comes next — the kind that gets paid faster because it makes paying easy.
We already run one: Invoex handles the full billing lifecycle — invoices, estimates, quotes, credit notes and proformas — in multi-currency, with item-level tax modes, recurring billing and accounts-receivable aging. When we scope your invoicing system, that is the checklist we start from, not a blank page.
The features that actually reduce late payments are unglamorous: automatic reminders before and after due dates, a hosted pay-now link on every invoice, partial payments logged correctly, and a dashboard that tells you who owes what without opening a spreadsheet. We build all of it in, because an invoicing system that doesn't get you paid faster hasn't earned its cost.
Multi-currency and multi-region tax handling are built from the schema up, not retrofitted — VAT, GST, sales tax, or no tax at all, applied per client and per line item. If you sell into several countries, your invoices should look native to each one.
Integration is where invoicing software either disappears into your workflow or becomes another tab nobody opens. We connect to Stripe, PayPal and regional processors for online payment, and to accounting exports (CSV, QuickBooks-compatible formats) so your bookkeeper never re-types a number.
Every project is fixed-price and escrow-protected: you fund the wallet, we build against a written checklist, you test it with your own real invoices, and payment — in USD or your currency of choice — releases only once you approve it.
What's included
- Multi-currency invoices, estimates, quotes and credit notes
- Recurring billing, automatic reminders and partial payments
- Stripe/PayPal payment links and accounting-software exports
- Multi-region tax handling (VAT, GST, sales tax) built in
Questions people ask us
Before you write to us — the honest answers.
Can the software handle clients in different countries and currencies?
Yes — multi-currency is a core requirement we design for from the first schema, not an add-on. Each client can be billed in their own currency with the correct tax treatment for their region.
Can you connect it to Stripe or PayPal so clients pay online?
Yes, this is one of the most requested features. A "Pay now" link on every invoice that accepts card or PayPal payment, with the payment automatically logged against the invoice, is standard.
Do you build recurring/subscription billing?
Yes — recurring invoices on a schedule you set, with automatic generation, reminders and retry logic for failed payments, the same pattern that runs our own Invoex product.
Can it export to QuickBooks or Excel for our accountant?
Yes. CSV export and QuickBooks-compatible formats are standard deliverables, so your existing bookkeeping workflow keeps working.
How much does custom invoicing software cost?
A focused invoicing tool typically starts in the low-to-mid four figures; a full billing platform with multi-currency, recurring billing and payment integration runs higher. Every quote is fixed-price with a written checklist, protected by escrow.
We are not in the UAE — can you still build tax compliance for our country?
Yes. We are not tax lawyers and will say so plainly, but the technical implementation — correct rates, correct rounding, correct invoice formatting for your jurisdiction — is something we build to your specification, wherever you are.
Can you build this as a web app, desktop app, or both?
Both, and often together — Invoex itself ships as a web app and an offline Windows application sharing the same billing logic. We will recommend the right shape once we know how and where your team works.
Related
Often paired with this service
Payment Integration
Secure Stripe, PayPal and regional payment gateway integration for web and mobile apps — one-time payments, subscriptions and marketplace payouts.
Explore payment integration →Escrow-protected payments
Every invoicing & billing project runs on our escrow model: your funds stay safeguarded until you approve delivery.
How escrow works →Need invoicing & billing?
Tell us about your project — we'll reply within one business day with a plan and an escrow-protected quote.