Enter your inputs
Add your hourly rate and hours, a fixed project fee, additional expenses, an optional discount, and your tax or VAT percent. Every field is optional, so the calculator works whether you bill hourly, on a fixed fee, or a mix.
Invoice tools
Estimate your invoice before you create it.
A free invoice calculator for freelancers, consultants, and small businesses. Add your hourly rate, fees, expenses, discount, and tax to see the total — then create the real invoice in Cash Workspace.
Calculator inputs
All math runs in your browser. Nothing is sent to a server, stored, or attached to analytics.
Invoice estimate
Add inputs on the left to see your estimated invoice total.
- Subtotal
- USD 0.00
- Discount
- USD 0.00
- Taxable amount
- USD 0.00
- Tax / VAT
- USD 0.00
Line items will appear as you fill in labor, fees, or expenses.
Estimated totalUSD 0.00
How it works
Three steps from estimate to invoice.
See the math, not just a total
The estimate shows subtotal, discount, taxable amount, tax, and the final total separately, so you can sanity-check the numbers before sending the invoice.
Move from estimate to invoice
When the numbers look right, jump into Cash Workspace to record the client, attach documents, send the invoice, and keep the record connected to your forecast and exports.
Why use an invoice calculator
Useful before you bill, not after.
Most invoice mistakes show up after the invoice is sent: a missed expense, an unclear discount, a tax line that doesn't match the project scope. The calculator gives you a quick checkpoint — subtotal, discount, taxable amount, tax, and total all visible at once — so the number on the invoice matches what you actually agreed to.
When you're ready to send the invoice, Cash Workspace records the client, tracks status, attaches PDFs, and keeps the entry connected to your cashflow and accountant-ready exports.
- Avoid surprises by checking the total before you send the invoice.
- Keep tax, discount, and expenses visible as separate lines instead of mixed into one number.
- Compare hourly versus fixed-fee structure quickly without opening a spreadsheet.
- Sanity-check estimates against your forecast before committing the invoice.
Frequently asked questions
Common questions about the calculator.
Does this calculator store my data?
No. All calculations run in your browser and the page never sends your inputs to a server, analytics, or third party. Refresh the page and the values reset.
Does it compute taxes for my country?
No. The calculator applies the tax or VAT percent you enter to the discounted subtotal. It does not look up jurisdictional tax rates or rules. Verify the correct rate with your accountant or your tax authority.
Can I use discounts and tax together?
Yes. The discount is applied to the subtotal first, then the tax percent is applied to the discounted amount. That mirrors the most common invoice math used by freelancers and small businesses.
What happens with empty or invalid inputs?
Empty, non-numeric, or negative entries are treated as zero so totals never go negative. A discount that would exceed the subtotal is capped at the subtotal.
Is this tax, accounting, or legal advice?
No. The calculator is an estimation tool only. It does not provide tax, accounting, legal, or financial advice and is not a substitute for review by a qualified professional.
Keep exploring
Related invoice and finance pages.
Invoice tracking
Track invoices without losing financial context.
Status, direction, due dates, and fiscal year context for invoices you send and receive.
Freelancer financeA finance template for freelancers who need structure.
Connected clients, invoices, expenses, documents, and forecast in one workspace.
CashflowA cashflow template for clearer short-term decisions.
Compare unpaid invoices, expected income, and expected expenses before billing.
Ready for the real invoice?
Create invoices in Cash Workspace.
Disclaimer
This calculator is for estimation only and does not provide tax, accounting, legal, or financial advice. Always verify invoice totals and tax rules for your jurisdiction. Cash Workspace does not process payments.