Calculate GST or VAT by adding tax to net prices or extracting base and tax from inclusive totals. Rates run privately in your browser offline.
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Quick answer: GST / VAT Calculator — Tax inclusive & exclusive Free, no signup, runs in your browser. See below for the interactive tool, 4-step guide and FAQs.
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Add mode grosses net upward while extract mode decomposes tax-paid total into base and levy. One thousand net at 18 percent becomes 1180 total, whereas 1180 inclusive contains 1000 base and 180 tax. Selecting correct direction before entry prevents inversion. Each computation remains on-device without transmission.
Display respects browser locale for symbols, separators, and decimal placement without uploading values. One thousand net at 18 percent shows 180 tax and 1180 total locally within one second. Changing system locale swaps notation instantly. Free offline operation requires no account at any time.
Exclusive path adds 180 to 1000 for 1180 total, inclusive path recovers base via total times 100 divided by 118. Testing second slab at 5 percent turns 1000 net into 1050 total, highlighting slab impact. Toggling add or remove first clarifies denominator. Instant local math supports invoicing drafts.
Platform commissions, shipping charges, and discount absorptions carry distinct slab treatments that blur headline 18 percent. A 1180 receipt with 100 logistics fee may split 5 percent versus 18 percent portions. Mapping line items separately before aggregation and verifying current notifications avoids shortfall during filings.
Low-turnover traders below threshold may prefer flat composition levy over input-credit complexity. Regular 18 percent chain suits 1180-scale B2B invoices with credit pass-through, while composition simplifies B2C corner sales. Comparing turnover, customer profile, and credit eligibility with a tax professional guides election wisely.
The engine adds levy to net amounts or extracts base from tax-paid totals across configurable slabs from zero to 28 percent. One thousand net at 18 percent yields 180 levy and 1180 total in one second, while 500 daily items and twenty weekly bills benefit from consistent logic. Slab table anchors intuition | Net base | Rate | Levy | Total | 1000 at 5 percent | 50 | 1050 | 1000 at 12 percent | 120 | 1120 | 1000 at 18 percent | 180 | 1180 | 2000 at 28 percent | 560 | 2560. Edge case of zero-rated exports requires zero rate, not exemption, to preserve credit chain. Limitation covers arithmetic only, excluding filing, e-invoicing, and place-of-supply rules for two hundred bills. This is general information only, not tax advice. See /terms and draft bills at /invoice-generator.
Add mode multiplies net times rate over one hundred, total sums net and levy in one operation. Extract mode divides total times one hundred by one hundred and rate for base, remainder forms levy. Eleven eighty at 18 percent recovers 1000 base and 180 levy, while 1050 at 5 percent recovers 1000 base and 50 levy. Operation table shows algebra | Direction | Formula | Substitution | Add 18 percent | 1000 times 0.18 | 180 levy, 1180 total | Extract 18 percent | 1180 times 100 divided by 118 | 1000 base | Add 5 percent | 1000 times 0.05 | 50 levy. Edge case of wrong slab selection skews totals by hundreds, so verify notification. Limitation ignores cess, reverse charge, and composition nuances. For United States checkout see /us-sales-tax-calculator. This is general information only, not tax advice. See /terms.
Type 1000 net, select 18 percent add to see 1180 total with 180 levy and formula exposition displayed. Flip to 1180 inclusive extract to recover 1000 base in two seconds, validating reversibility with division shown. Test 1000 at 5 percent for 1050 across two runs to internalize slab sensitivity and rate impact. Edge case of decimal rates like 7.25 percent still resolves precisely with two-decimal rounding for accuracy. Limitation restricts tool to planning math, omitting return filing, audit proof, and legal interpretation for fifty states. Verify slab with official circular before quoting clients. This is general information only, not tax advice. See /terms. Test 1000 at 18 percent for 1180 then 5 percent for 1050 to lock add-versus-extract mastery confidently.