Free GST, income tax and HR tools for India
GST and income tax calculators and document makers for Indian businesses and employees: GST invoices, quotations, salary slips, HRA rent receipts, rent agreements and HR letters, with dated rates linked to official sources.
Every tool runs in your browser and nothing you type is uploaded.
Last reviewed
GST
From 22 September 2025 the two main GST rates are 5% and 18%, with 40% for specified luxury and sin goods and special rates for gold, silver and precious stones. Tax is split equally into CGST and SGST within a state and charged as IGST between states.
The GST calculator adds or extracts GST at these rates, and the GST invoice generator and quotation generator print the CGST/SGST or IGST split with HSN or SAC codes.
Income tax for FY 2026-27
Under the new regime, income up to ₹12 lakh is tax-free for most people because of a rebate of up to ₹60,000, and salaried employees also get a ₹75,000 standard deduction. Budget 2026 kept these rates, and the Income-tax Act 2025 applies from 1 April 2026.
The income tax calculator compares the new and old regimes. HRA exemption is available only in the old regime; the HRA receipt generator makes the monthly rent receipts employers ask for.
Payroll and HR documents
The salary slip generator prints earnings, deductions, loss of pay, and PAN, PF and ESI numbers. The appointment letter generator derives a CTC breakup, and the experience certificate and relieving letter generators cover the exit paperwork.
Renting a property
The rent agreement generator drafts an 11-month agreement with a state stamp-duty clause, and adds a registration note when the term is 12 months or more. Execute it on the stamp paper your state prescribes and have it reviewed before you rely on it.
Tools for India
Document generatorsRent Agreement GeneratorDraft an 11-month rent agreement with landlord and tenant details, rent, deposit, lock-in, notice and witnesses, then print it. Made in your browser.Document generatorsSalary Slip GeneratorGenerate a salary slip with earnings, deductions, attendance, LOP and net pay, then download a PDF or print it. Free and made in your browser.Document generatorsInvoice GeneratorCreate a GST invoice with line items, HSN/SAC codes, CGST/SGST or IGST split, discounts and bank details, then download a PDF. Made in your browser.Document generatorsHRA Receipt GeneratorGenerate monthly, quarterly or yearly HRA rent receipts with landlord PAN, amount in words and receipt numbers, then print or save a PDF in your browser.CalculatorsGST CalculatorAdd or remove GST at the rates in force from 22 Sep 2025 (5%, 18%, 40% and special rates) with a CGST, SGST or IGST split. Free and runs in your browser.CalculatorsIncome Tax Calculator FY 2026-27Estimate income tax for FY 2026-27 under the new and old regimes, with the ₹12 lakh rebate, ₹75,000 standard deduction and 4% cess. Runs in your browser.
Also useful everywhere
These tools work the same in every market.
Document generatorsExperience Certificate GeneratorCreate an experience certificate with tenure, responsibilities, performance note and signatory, then download a PDF. Free and made in your browser.Document generatorsAppointment Letter GeneratorDraft an appointment or offer letter with role terms, CTC breakup, probation and an acceptance block, then download a PDF. Free and made in your browser.Document generatorsRelieving Letter GeneratorCreate a relieving letter with resignation and last working day, notice-period check, clearance and settlement dates. Free PDF made in your browser.Document generatorsQuotation GeneratorCreate a quotation with line items, GST split, validity date, discounts and commercial terms, then download a PDF or print it. Made in your browser.Document generatorsID Card GeneratorCreate an employee, visitor, student or membership ID card with photo, logo, QR code or barcode, then download PDF, PNG or SVG. Made in your browser.Data utilitiesHash GeneratorGenerate SHA-256, SHA-512, SHA-1 and MD5 hashes of any text and check them against an expected checksum. Free, and the text never leaves your browser.CalculatorsLLM Token & Cost EstimatorEstimate prompt and output tokens at about 4 characters per token and project monthly LLM API cost in USD from your own rates. Runs in your browser.CalculatorsShipping CalculatorWork out volumetric and chargeable weight from parcel dimensions, then estimate shipping cost with your rate, handling and insurance. Runs in your browser.Data utilitiesBarcode GeneratorCreate Code 128, EAN-13, UPC or QR code labels, check the value fits the format, and download a PNG or SVG to print. Free and made in your browser.Data utilitiesCron GeneratorBuild a cron expression from presets or five fields, read it in plain English, and preview the next run times. Free and works entirely in your browser.Data utilitiesJSON FormatterFormat, validate, minify and sort JSON online, with the exact parser error when it is invalid. Free, and your JSON never leaves your browser.Data utilitiesJSON to CSV ConverterConvert a JSON array to CSV with nested objects flattened into dot-path columns, and a comma, semicolon or tab delimiter. Free and runs in your browser.Data utilitiesCSV to JSON ConverterConvert CSV to a JSON array of objects using the header row as keys, with comma, semicolon or tab delimiters and dotted headers built into nested objects.Data utilitiesOpenAPI ValidatorPaste an OpenAPI 3.x or Swagger 2.0 description in YAML or JSON and check its structure, operations, responses, operationIds and internal $ref links.Data utilitiesRegex TesterTest JavaScript regular expressions with flags, see every match and capture group, and preview replacements. Free, and your text stays in your browser.CalculatorsSalary to Hourly CalculatorConvert an annual salary to an hourly, daily, weekly or monthly rate, or an hourly wage into a salary, using your own hours and weeks. In your browser.CalculatorsCurrency Conversion & FX Fee CalculatorConvert an amount at an exchange rate you enter, then see the effect of FX spread, percentage and fixed fees. Not a live rate feed. Runs in your browser.Data utilitiesBase64 EncoderEncode text to Base64 or decode it back, with UTF-8 support and ready-to-paste data URIs for CSS and HTML. Free, and nothing leaves your browser.Enterprise planningAI Prompt GeneratorBuild structured prompts for ChatGPT, Claude or Gemini from templates, with role, context, constraints, variables and output format. Runs in your browser.Enterprise planningBusiness Credit Risk Worksheet (DSCR)Calculate DSCR and debt-to-income for a business loan and score risk from vintage, industry, repayment history and collateral. Runs in your browser.CalculatorsClaude Code Cost CalculatorEstimate Claude Code costs per task and per month from tokens, USD rates and prompt-cache hits, and compare them with a budget. Runs in your browser.Enterprise planningClaude Schedule GeneratorGenerate Claude Code schedule and loop commands from templates and plain-language frequencies, with optional GitHub Actions YAML. Runs in your browser.CalculatorsCommission CalculatorCalculate sales commission for percentage, fixed or tiered plans, with quota accelerators and clawbacks, and see the effective rate. Runs in your browser.Enterprise planningERP Integration Cost CalculatorEstimate ERP integration build cost, timeline, maintenance, reconciliation and 3-year TCO, and compare integration approaches. Runs in your browser.Enterprise planningRAG Chunking OptimizerTest RAG chunk size, overlap and splitting strategy on your own text, preview the chunks, and estimate embedding and retrieval cost. Runs in your browser.Data utilitiesNumber ConverterConvert numbers between binary, octal, decimal and hexadecimal, with 8- to 64-bit word sizes and two's complement. Free and works in your browser.CalculatorsProfit Margin CalculatorCalculate profit margin, markup, break-even units and the price for a target margin from cost, price, volume and overhead. Free and runs in your browser.Enterprise planningData Silo AuditScore data silo risk from system sprawl, point-to-point integrations, reconciliation effort and duplicated entities. Free, and it runs in your browser.Enterprise planningBusiness Data WorksheetDefine an entity's owner, sources, identifiers, canonical fields, quality rules and consumers, and export a draft JSON Schema. Runs in your browser.Enterprise planningSupply Chain Data MaturityAnswer eight questions on product, inventory, vendor, order and shipment data for a maturity score out of 100 and a breakdown. Runs in your browser.Enterprise planningCanonical Schema GeneratorMap SAP, Salesforce or Oracle source fields to canonical names and generate a draft JSON or YAML schema with mapping evidence. Runs in your browser.Data utilitiesAPI Response & XML FormatterFormat or minify XML and JSON API responses, and check validity, top-level keys, nesting depth and size. Free, and responses stay in your browser.CalculatorsEMI CalculatorCalculate loan EMI, total interest and the amortization schedule, and see how prepayments and fees change the cost. Free and runs in your browser.CalculatorsCompound Interest CalculatorSee how savings grow with compound interest and monthly deposits, choose the compounding frequency, and adjust for tax and inflation. Runs in your browser.CalculatorsROI CalculatorCalculate return on investment, annualized ROI, NPV at your discount rate, and payback period from yearly cash flows. Free and runs in your browser.CalculatorsAdvanced Loan SimulatorModel a business loan with a moratorium, capitalized or serviced interest, an upfront subsidy and fees, and see the EMI and schedule. Runs in your browser.Data utilitiesJWT DecoderDecode a JWT's header and payload, read its claims, and flag expiry, issuer and audience problems. Free, and the token is never sent to a server.Data utilitiesJSON to TOON ConverterConvert JSON to TOON, a compact notation for LLM prompts, convert TOON back to JSON, and estimate the token savings. Free and runs in your browser.Data utilitiesEditorial Clarity CheckerCheck writing for repeated words, uniform sentence lengths and stock phrases, with practical edits. Runs in your browser; it is not an AI detector.Data utilitiesJSON Form BuilderDefine form fields in simple lines, preview the form live, and export the HTML with a matching JSON Schema for validation. Free and made in your browser.Enterprise planningWebhook Payload InspectorInspect webhook headers and JSON payloads, build the HMAC signing string, and check timestamps against a replay window. Runs entirely in your browser.Data utilitiesDeveloper Tools WorkspaceDraft an API request with headers, params and a JSON body, get curl and fetch snippets, and test assertions on a sample response. Runs in your browser.