Calcolo IVA is a free VAT (IVA) calculation tool for the Italian market, whose core purpose is to strip VAT (scorporo IVA) and calculate the tax-inclusive price from the net price, while also supporting multiple entries with different rates in a single invoice.
Main capabilities
The tool supports the common Italian VAT rates of 4%, 5%, 10%, and 22%, and also allows a custom rate to be entered. The calculation includes two directions: first, deriving the net price (netto) and VAT amount from the tax-inclusive total (lordo), with the formula "net price = tax-inclusive price ÷ (1 + rate)"; second, calculating the tax-inclusive total from the net price, with the formula "tax-inclusive price = net price × (1 + rate)". All results are always rounded to two decimal places.
Users can add multiple entries to the same invoice, each with its own rate, and the system automatically totals the taxable amount, total VAT, and invoice total, without the need to add up line by line manually, and avoiding the mistaken use of a single average rate for multi-rate invoices.
After calculation, it supports exporting PDF or CSV files, without the need for spreadsheets or separate accounting software. Each calculation record is saved in the current browser for later review.
A free VAT chat assistant is available in the lower right corner of the page, and can instantly answer common questions such as the applicable rate for a certain type of product and reverse charge, without registration.
How to use
Users simply enter the amount and rate on the web page to complete the stripping or tax-addition calculation; in multi-entry scenarios, entries are added one by one, and the system automatically updates the totals. When exporting, choose PDF or CSV to download. History is automatically retained in the browser, but is lost if you change devices or clear browsing data. The tool requires no account and does not collect personal data.
Use cases
Typical uses listed in the materials include: correctly issuing invoices and separately showing the taxable amount, rate, and VAT; calculating deductible input VAT on purchases (IVA a credito) and output VAT payable on sales (IVA a debito); comparing tax-inclusive and tax-exclusive quotes on the same tax base; checking whether a supplier has used the correct rate. In addition, even people without a VAT number can use it to understand the actual tax in a price; however, only VAT number holders under the ordinary taxation system can use that amount for deduction. The materials also mention that multi-rate invoices (such as books at 4% and tech accessories at 22%) must be stripped line by line, and an average rate cannot be applied after combining them.
Limitations and notes
The materials do not provide specific pricing plans, price information, or platform version. The tool's results are for reference only, and specific tax questions should be based on the Italian Revenue Agency (Agenzia dethe Revenue Agency) or an accountant's opinion shall prevail; the materials mention that the Italian VAT rate is determined by DPR 633/1972 and related amending laws. For intra-EU transactions, the destination country's rules must be applied rather than Italian rules. Historical records exist only in the current browser and will be lost after changing devices or clearing browsing data.
