Jinsi ya kutumia Invoice Generator — create a clear professional invoice
Build a readable invoice with supplier, customer, reference, dates, line items, tax, totals and payment instructions.
Line total = quantity × unit price. Subtotal is the sum of lines, adjusted for discount and tax according to the selected settings.
Build a readable invoice with supplier, customer, reference, dates, line items, tax, totals and payment instructions. The linked Sellible tool keeps the fields, units and output together so the assumptions can be reviewed before the result is used.
- 1
Enter legal or trading details for both parties.
- 2
Add descriptive line items and verify quantities and prices.
- 3
Review tax, totals, payment terms and reference before printing.
Example values and result
These values demonstrate the method; replace them with measurements, rates or file details that match the real task.
- Invoice reference
- INV-2026-001
- Issue / due date
- 29 Aug / 12 Sep
- Line items
- Description, quantity, unit price
- Payment detail
- Reference and bank or online instructions
A professional invoice makes the parties, work, amounts, dates and payment route unambiguous. The generator creates a clean printable document in the browser.
Usahihi na mwongozo wa vitendo
- Use numbering and tax wording required in your jurisdiction.
- Proofread customer details and purchase-order references.
- Keep a durable accounting copy after printing or export.
Common mistakes
- Leaving the due date or payment reference unclear.
- Using vague line descriptions that cannot be reconciled.
- Treating a browser-generated document as automatic bookkeeping.
A free account makes repeat tasks simpler
Email-link sign-in keeps file jobs, downloads, support and usage available across devices. Browser calculators remain free.
Maswali yanayoulizwa mara kwa mara
Is Invoice Generator free?
Yes. This calculator or browser utility is free and does not use processing credits.
Can I use this guide and Invoice Generator on a phone?
Yes. The guide, inputs, results and calls to action are responsive and keyboard accessible on current phones, tablets and desktop browsers.
Should I order or make a decision from the estimate alone?
No. Use numbering and tax wording required in your jurisdiction. Proofread customer details and purchase-order references. The calculation is a planning aid rather than professional or regulatory approval.
How should I check the result?
Keep the source values and units visible, compare the result with supplier or project information, and retain enough precision until the final purchasing or reporting step.