VAT calculator — net and gross
Calculate VAT instantly: net to gross or gross to net. Rates 23%, 8%, 5%, 0%. Free VAT calculator, no signup.
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VAT Invoice Calculator
The VAT invoice calculator lets you quickly work out the net value, VAT amount and gross total for each line on an invoice and sum the whole document. It handles up to 5 line items at once, and each line can carry a different VAT rate: 23%, 8%, 5% or 0%. Just enter the quantity, unit net price and select the VAT rate for each line — the calculator instantly computes per-line totals and sums the net, VAT and gross columns across the entire invoice. This tool is especially useful for sole traders, freelancers and accountants who want to verify invoice figures before issuing a document.
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How the invoice calculator works
For each line the calculator computes: 1. Line net value = quantity × unit net price. 2. Line VAT amount = line net value × (VAT rate / 100). 3. Line gross value = line net value + line VAT amount. The columns are then summed: • Total net = sum of all line net values. • Total VAT = sum of all line VAT amounts. • Total gross = sum of all line gross values. All amounts are rounded to 2 decimal places. Lines with a quantity or price of zero are excluded from the totals.
Example: invoice with two lines
Line 1: 2 units of software development at PLN 500 net each, VAT 23% → net: PLN 1000, VAT: PLN 230, gross: PLN 1230. Line 2: 1 unit of computer hardware at PLN 800 net, VAT 23% → net: PLN 800, VAT: PLN 184, gross: PLN 984. Invoice total: net PLN 1800 + VAT PLN 414 = gross PLN 2214.
Frequently asked questions
What is a VAT invoice?
A VAT invoice is an accounting document confirming a sale of goods or services between VAT taxpayers. It must include the seller's and buyer's details, a description of each item, the net value, the VAT rate, the VAT amount and the gross amount payable.
How do I calculate gross from net?
Gross = net × (1 + VAT rate / 100). For example, net PLN 100 at 23% VAT: gross = 100 × 1.23 = PLN 123. The VAT amount is PLN 23.
What VAT rates apply in Poland?
The standard VAT rate in Poland is 23%. Reduced rates are 8% (construction services, some food, medicines) and 5% (basic foodstuffs, books, e-books). A 0% rate applies mainly to exports and intra-EU supplies.
How do I calculate VAT from a net amount?
VAT amount = net value × (VAT rate / 100). Example: PLN 500 net at 23% gives VAT = 500 × 0.23 = PLN 115. Gross = 500 + 115 = PLN 615.
Can a single invoice have multiple VAT rates?
Yes. One invoice can contain lines with different VAT rates (e.g. 23%, 8%, 5%, 0%). Each line is calculated at its own rate. VAT amounts are usually shown separately for each rate or combined in a summary section.
Who must issue VAT invoices?
Active VAT payers are required to issue VAT invoices when selling goods or services to other VAT taxpayers. VAT-exempt taxpayers (by turnover threshold or by type of activity) issue invoices without VAT or simple receipts, depending on the situation.
What is the payment deadline on a Polish invoice?
The standard payment term is 30 days from the invoice date, though the parties may agree a different period. Under Polish law (the anti-late payment act), the maximum term for B2B transactions with large enterprises is generally 60 days. Exceeding the deadline entitles the seller to statutory interest.
How long must VAT invoices be kept?
VAT invoices must be retained for 5 years from the end of the calendar year in which the tax payment deadline fell. Documents may be stored in paper or electronic form, provided their authenticity and legibility are guaranteed.
What is reverse charge (odwrotne obciążenie) in Poland?
Reverse charge is a mechanism where the VAT obligation is shifted from the seller to the buyer. It applies in certain transactions, e.g. some construction services or cross-border B2B supplies within the EU. In such cases the invoice is issued with 0% VAT or marked 'reverse charge', and the buyer accounts for the VAT.
Are these calculator results legally binding?
No. The results are indicative only and are not tax or legal advice. Always verify figures with a qualified accountant or tax adviser before issuing official documents.
Calculator results are for indicative purposes only and do not constitute tax or legal advice. Calculations are based on the input data provided and standard VAT formulas. For tax matters, consult a licensed tax adviser or accountant.
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