Multi-Company Invoicing System
Security Services
Recurring service invoicing for several companies from one file. Invoices are saved to a database, PDFs are generated individually or for a whole month, and summary…
Hire an Excel finance tools developer for Australian businesses
Invoicing, cashflow, ledgers, reconciliations, payroll checks and financial statements, built by someone who worked three years as a senior accountant.
- 500+projects delivered
- 5.0rating on Fiverr and Upwork
- 10+years of Excel VBA
Sound familiar?
- Bank transactions are categorised line by line every month
- Invoices are made one file at a time
- Billed hours and payroll never match without a long manual check
- Month-end close depends on one person remembering every step
What I build
- Invoice generators with a customer database and bulk PDFs
- Bank categorisation and cashflow statements
- Reconciliations between bank, ledger and billing data
- Payroll and billing hours checks
- Profit and loss, balance sheet and budget versus actual reports
Working with clients in Australia
Time zone
India is only 4.5 to 5.5 hours behind Australia, so most of your working day overlaps with mine.
Paying
Fixed prices in US dollars. Pay by PayPal, card, UPI or bank transfer from Australia, and you get a proper invoice for every order.
Your data
Files stay private on your order page. I sign an NDA if you need one, and you own all the files and code.
Recent work
Automated Cashflow & Bank Categorisation
Accounting
Downloads bank and QuickBooks data, classifies every transaction into a ledger using a keyword table and produces a monthly cashflow statement with payroll summary. New vendors…
Payroll & Billing Hours Automation
Healthcare (Home & Community Services)
Automates the bi-weekly payroll check for a home and community services provider. Staff and billing reports are downloaded from the EHR, billed hours are summarised by…
What clients say
Sourav Saha truly impressed with his exemplary professionalism and keen attention to detail, surpassing what was expected in data processing. His cooperative spirit and commitment to deliver ahead of schedule made working with him a pleasure.
Sourav demonstrated professionalism, responsiveness, and technical competence throughout the engagement. Communication was clear and timely, and the deliverables met the expected standards.
Questions
Do you understand accounting, or only Excel?
Both. I have a B.Com in Accounts and three years as a senior accountant, so the tools follow how the books actually work.
Can it work with QuickBooks or my bank exports?
Yes. I build imports for the export files your bank, QuickBooks or other software already produce.
Can you build it without seeing my real figures?
Yes. I can build with sample data and you plug in the real file at the end.
How long does it take?
Small fixes are often done the same or next day. Most builds take 2 to 3 days, and bigger systems about a week with a first version in 2 days. If you have a deadline, tell me and I will work to it.
Ready to hire an Excel finance tools developer?
Send your file and what you need. You get a fixed price before any work starts.
Who does the work
Sourab Saha · Data Analyst · Kolkata, India
I’m Sourab Saha, a data analyst and automation developer from Kolkata, India, with more than ten years of experience turning manual data work into clean, automated systems. On Fiverr and Upwork I have delivered over 500 data and automation projects for clients in the US, UK, Europe, Australia and the Middle East, with a 5.0 rating on both platforms. My toolkit is Excel VBA, SQL, Power BI and DAX, Python with Selenium, and Google Apps Script. I collect data from files, databases and websites, clean it, model it and present it so decisions take minutes instead of days. I build and test every tool on your real data, deliver it with a short walkthrough, and keep revising until it works exactly the way you need. Alongside my freelance work, since 2024 I have also worked as a Data Analyst for AH Group of Industries, a US healthcare group, building automated reports and Power BI dashboards from billing, payroll, audit and attendance data.
Rated 5.0 on Fiverr and Upwork, with more than 500 automation projects delivered and over ten years of Excel VBA. You get a fixed price before any work starts, your files stay private on your order page, and every order comes with a proper invoice.
Services: Excel VBA automationWeb scraping and browser automationGoogle Sheets and Apps ScriptPower BI and Excel dashboardsPython tools and scriptsFinance and accounting tools