GST Calculator
Add GST to a price or take it out, split into CGST and SGST or IGST, for one item or a whole bill.
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28 free tools, no sign-up
Free business tools for small businesses in India
Work out GST and GST late fees, make GST invoices, match GSTR-2B with your purchases, make delivery challans, receipts and salary slips, work out gratuity, loan EMIs and MSME late payment interest, plan cash flow, price your services and plan budgets. They run in your browser on what you type. No sign-up.
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GST and tax
GST amounts, GST invoices, GSTR-2B matching and late fees.
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GST Invoice and Quotation Generator
Make a GST tax invoice, bill of supply or quotation, check it against Rule 46, and print it or save a PDF.
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New
GSTR-2B Reconciliation Tool
Match GSTR-2B with your purchase register: credit at risk, missing invoices and supplier follow-up messages.
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GST Late Fee and Interest Calculator
Late fee and interest on a late GSTR-3B or GSTR-1, with the cap for your turnover and the cost of each day.
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Bills, receipts and staff
Delivery challans, receipts, salary slips, gratuity and working days.
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Delivery Challan Generator
Make a GST delivery challan for job work or goods on approval, check it against Rule 55, print three copies.
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Payment Receipt Maker
Make a receipt for a full payment, part payment or advance, with the balance left, and print it on A4 or A5.
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Rent Receipt Generator
Make monthly rent receipts for HRA, with amounts in words and a PAN check, then print or save a PDF.
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Salary Slip Generator
Make a monthly salary slip with loss-of-pay days, EPF and ESI helpers and net pay in words, then print it.
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Gratuity Calculator
Check whether gratuity is due, work out the amount and the pay-by date, and get a letter to send.
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Working Days Calculator (India)
Count working days between two dates or add working days to a date, skipping weekly offs and holidays.
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Loans, cash flow and MSME
Loan EMIs, cash flow, MSME late payment interest and your MSME category.
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Loan EMI Calculator
Work out a loan EMI and total interest, see the monthly schedule, test extra payments and compare offers.
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New
Cash Flow Planner
Plan 12 months of cash in and out, see the month cash runs short and what would cover the gap.
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MSME Delayed Payment Interest Calculator
Interest a buyer owes a micro or small supplier for paying late, with due dates and a reminder letter.
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MSME (Udyam) Category Checker
Micro, small or medium under the 2025 Udyam limits, with both tests and how close the next category is.
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Prices and profit
Service prices, margins, break-even, offers and customer value.
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Service Price Calculator
The hourly, session and project rate that covers your costs, your pay and a profit, with GST and TDS.
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Profit Margin & Markup Calculator
Any two of cost, price, margin and markup give the rest, with GST and many products at once.
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Break-even Calculator
Break-even units and sales from your monthly costs, with target profit, a chart and what-if scenarios.
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Discount & Offer Profit Calculator
How many more sales a discount, BOGO or free gift needs to earn the same gross profit.
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LTV & CAC Calculator
Customer lifetime value, the cost to win a customer, the LTV:CAC ratio and payback in months.
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Marketing and website budgets
Marketing budgets and what SEO or a new website should cost.
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Marketing Budget Planner
Turn a sales goal into leads and a monthly budget by channel, with GST and a 12-month plan.
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SEO & Marketing Cost Calculator
Answer a few questions and see which of our SEO plans fits, its starting price and what it includes.
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New
Website Cost Calculator
Estimate the hours to build a website, price them at your rate or quote, and see the cost over three years.
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Cards, posters and QR codes
Business cards, letterheads, sale posters, email signatures and QR codes.
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Business Card Maker
Design a business card front and back, then print ten on an A4 sheet with crop marks, or save a PDF.
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Letterhead Maker
Make an A4 letterhead with your logo and details, then print it blank or with a letter, or save a PDF.
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Sale Poster and Shop Banner Maker
Printable shop posters for a sale, new stock, a festival offer, timings, UPI or WhatsApp, with a QR code.
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Email Signature Generator
Build an email signature with your logo, phone and WhatsApp links, and copy it into Gmail or Outlook.
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QR Code Generator
QR codes for links, Wi-Fi, contact cards, calls, SMS, email and maps, as PNG, SVG or a print sheet.
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UPI Payment QR & Link Generator
Turn your UPI ID into a payment QR code, a link to copy and a printable counter card.
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Built on official rules
Rates and limits come from official sources such as CBIC and the GST Council, RBI, the Ministry of MSME, EPFO, ESIC and DoPT's holiday list. Each tool page lists its sources and the date we last checked them. Where a figure is our own, such as a suggested price or budget, the tool says so.
What these tools do not do
They do not file returns, connect to the GST portal or your bank, or keep what you type: everything is worked out in your browser, and invoices, receipts and slips print from there, so you can save them as PDF. Nothing here is legal, tax or financial advice; check with your CA before you rely on a figure.
Frequently asked questions
Are these business tools free?
Yes. Every tool on this page is free, with no sign-up and no limit on how often you use it. They are made by DigitalSnot, a digital marketing agency in India, alongside our free SEO and AI search tools.
Is what I type sent anywhere?
No. These tools run in your browser, so the amounts, names and numbers you type stay on your device. Invoices, receipts and salary slips print from your browser, where you can save them as PDF.
Do the GST tools file returns or connect to the GST portal?
No. They work out amounts and make documents from what you type. File your returns and download GSTR-2B on the GST portal yourself, and ask your CA to check anything you rely on.
How current are the GST rates and limits?
We check them after GST Council meetings and RBI policy meetings, and when MSME, EPF or ESI limits change. Each tool page shows its sources and the date we last checked them.
Where are the SEO tools?
On the free SEO tools page, with site audits, AI search checks, local SEO and backlink tools. Google Ads, YouTube, content writing, social media and e-commerce tools have their own pages too.
Want more customers for your business?
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