A clear invoice helps the customer recognize the work, check the amount, and understand when and how to pay. The easiest way to create one is to follow the same sequence every time: start with the agreement, enter the transaction accurately, and review the finished document before sharing it.
The exact legal and tax requirements depend on where you and your customer are located. The steps below cover a practical invoice workflow, but they do not replace guidance from your local authority or accountant.
Ready to create the invoice?
Add the customer, enter the work, review the PDF, and keep the invoice available for payment tracking in InvCreate.
Try InvCreate for free1. Collect the information behind the invoice
Before opening the invoice editor, have the agreement, approved estimate, time record, delivery note, or project summary nearby. Confirm who is paying, what was delivered, the agreed price, the currency, the payment terms, and any purchase order or project reference.
This is faster and safer than reconstructing the job from memory after it has ended.
2. Add the supplier and customer details
Use the business names, addresses, contact details, and registration or tax identifiers that belong to the transaction. For a larger customer, check the billing entity and accounts-payable address instead of assuming they match your everyday contact.
3. Assign the invoice number and dates
Give the invoice a unique number that fits your normal sequence. Add the issue date, due date, and—when it helps explain the charge—the service or delivery period.
A specific due date is usually clearer than relying only on wording such as “Net 14,” particularly when the invoice must pass through an approval process.
4. Describe the work in recognizable line items
A useful line item tells the customer what they are paying for and how the amount was calculated.
Instead of:
Design work — 1,200 USD
Write:
Brand workshop and two logo concepts, project phase 1 — 1 × 1,200 USD
For time-based work, show the unit and rate: “UX consultation — 12 hours × 120 EUR.” For a milestone, name the deliverable and phase. For products, include a recognizable item name, quantity, and unit price.
5. Check currency, discounts, and taxes
Confirm that the currency matches the agreement. Review discounts and tax rates rather than copying them blindly from an older invoice. An invoice app can calculate from the values you enter, but it cannot decide the correct legal or tax treatment for your transaction.
6. State the payment terms and instructions
Tell the customer when payment is due and how to pay. Depending on your process, this may include bank details, a payment reference, an accepted payment method, or a billing contact. Add a purchase order or project code when the customer requires one.
7. Preview before you export
Review the invoice as the customer will see it. Check:
- supplier and customer identities;
- invoice number, issue date, due date, and service period;
- descriptions, quantities, rates, and arithmetic;
- currency, discounts, taxes, subtotal, and total;
- purchase order or project reference;
- payment instructions;
- page breaks and long descriptions.
Saving and exporting have different purposes. Saving preserves the editable invoice record so you can return to it. Exporting creates the PDF you send or share.
After sending, keep the invoice connected to its payment status. Record the amount received, leave any remaining balance visible, and follow up when the due date has passed.
Create the invoice while the details are still fresh
Build the invoice, preview the PDF, share it with the customer, and return later to record the payment.
Try InvCreate for free