Freelance Invoice Calculator
Calculate a freelance invoice total from hours or project fees, extra expenses, tax rate, and any discount applied.
Overview
The Freelance Invoice Calculator helps you estimate what to bill a client using either an hourly rate and hours worked or a fixed project fee. You can also include reimbursable expenses, apply a discount, and add a tax rate to see the final invoice total.
How it works
The calculator first works out your service charge from either your hourly work or your fixed project fee. It then applies any discount to the service amount, adds reimbursable expenses, and calculates tax on the pre-tax total. The final invoice total is the pre-tax amount plus tax.
How to use this calculator
- 1Choose whether you bill hourly or with a fixed fee.
- 2Enter your hourly rate and hours worked, or enter your project fee.
- 3Add any reimbursable expenses you want to include.
- 4Enter a discount percentage if you are offering one.
- 5Add the relevant tax rate and review the estimated invoice total.
Example Calculation
Billing type
hourly
Hourly rate
$80
Hours worked
15
Reimbursable expenses
$100
Discount
10%
Tax rate
20%
Invoice total
$1,740.00
With an hourly rate of 80 and 15 hours worked, the service subtotal is 1200. After a 10% discount, plus 100 of expenses and 20% tax, the estimated invoice total is 1404.
Frequently asked questions
What does the Freelance Invoice Calculator estimate?
It estimates the total amount to put on a freelance invoice based on your service charge, discount, expenses, and tax rate.
Can I use this calculator for hourly and fixed-price projects?
Yes. You can choose hourly billing or a fixed project fee and calculate the invoice total either way.
Are expenses taxed in this calculator?
Yes. The calculator applies the tax rate to the full pre-tax total, which includes discounted services plus expenses. Check local rules if expense treatment differs where you invoice.
Is the discount applied before tax?
Yes. The calculator subtracts the discount from the service subtotal before adding expenses and calculating tax.
Can this calculator create an invoice document?
No. It estimates invoice amounts only. You would still need to create and send the invoice using your preferred invoicing method.
Should I include tax on every freelance invoice?
Not always. Whether tax applies depends on your registration status, client location, and local rules, so confirm the correct treatment before invoicing.
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Assumptions and warnings
Assumptions
- Results are estimates based on the rates, hours, fees, expenses, discount, and tax rate you enter.
- Discount is applied to service charges before expenses and tax are added.
- Tax is calculated as a simple percentage of the pre-tax total.
- This calculator does not include payment processing fees, currency conversion, or late fees unless you add them manually to expenses or pricing.
Warnings
- This calculator provides an estimate only and is not accounting or tax advice.
- Tax treatment varies by country, region, and invoice type, so check current rules before sending an invoice.