Калькулятор НДС: выделить и начислить 20%

Product description

📦 FORMAT · VERSION · GUARANTEE — quick overview before buying

• Contents: ZIP: single HTML file + GUIDE.pdf + README + selftest
• Version: September 2026
• Requirements: Any browser, no installation, works offline
• Delivery: automatic, by e-mail right after payment
• Guarantee: the product matches its description. If anything is wrong — write a personal message, we'll sort it out or refund you.
• Terms: for personal use; resale is prohibited.

VAT CALCULATOR 2026 — EXTRACT AND ADD 20%

Quickly extract VAT from an amount or add it on top: the base without VAT, the tax itself and the total on one screen. The rate is one tap away — 20, 10, 7 or 0%. Also a line-item list that totals a whole invoice. One HTML file, fully offline.

WHAT'S INSIDE:

• Two modes: "add on top" and "extract from the amount"
• Rates per art. 164 of the Russian Tax Code: 20% standard, 10% food and children's goods, 7% for IT, 0% export
• Add: VAT = amount × rate ÷ 100, total = amount + VAT
• Extract: base = amount × 100 ÷ (100 + rate), VAT = amount − base
• Practical formula 20/120 for 20%, 10/110 for 10%, 7/107 for 7%
• Line items: name, amount with or without VAT, invoice totals, item removal
• Print the result to paper or PDF with one button
• Dark and light themes, large input fields, works offline

WHO NEEDS IT:

• Entrepreneurs on the general tax system — check a supplier's invoice VAT
• Accountants — quickly recalculate a document amount
• Freelancers — quote a price with the tax included

EXAMPLE:

From 14,400.00 RUB at 20% the extracted VAT is 2,400.00 RUB, and the amount without VAT is 12,000.00 RUB.

VERIFIED BEFORE SALE:

• 40 automated tests: adding and extracting for all four rates, cents, large amounts, zero and garbage inputs, negative numbers rejected
• 27 live browser tests: both modes, four rates, the line-item list with adding and removing, invoice totals, persistence, themes
• Screenshots are from the real working program

Guarantee: replacement or refund. The file is delivered automatically right after payment.