Free calculators

Free calculators for chartered accountants

GST, loans, depreciation, audit materiality and sampling, costing - worked out in your browser, with the working shown line by line. No sign-up.

GST

The tax on an amount, either way round.

GST calculator Add GST to a price, or take it out of one that already includes it, and split it into CGST and SGST or IGST. Open it

Loans

Instalments, interest and prepayment.

EMI calculator The monthly instalment on a loan, the interest over its life, and the balance at the end of every year. Open it Loan prepayment calculator What paying a lump sum, or a little extra each month, saves in interest and in months. Open it

Accounts

The figures the year end needs.

Depreciation calculator Written down value or straight line, year by year, with the half-year rule for an asset used less than 180 days. Open it

Audit

Planning the audit under the Standards on Auditing.

Audit materiality calculator Overall materiality from a benchmark, the performance materiality below it, and the clearly trivial threshold, under SA 320. Open it Audit sample size calculator How many items to test by monetary unit sampling, and the interval to pick them at, under SA 530. Open it

Costing

Prices, margins and the break-even point.

Break-even calculator How much has to be sold before anything is earned, and how far above that point the business is. Open it Margin and markup calculator The price that gives the margin you want, the margin a markup really gives, and the price with GST. Open it
In KiyoTool

The statutory calculators, and everything around them

The calculators whose answers turn on rates, thresholds and due dates live in KiyoTool, where a change in the law arrives as an update rather than a page nobody revisits - beside ninety-odd audit, GST and tax checks, Schedule III statements and AI that drafts the working paper, all on your own machine.

  • GST late fee and interest
  • Reverse charge
  • Old regime against new
  • Advance tax and interest
  • Capital gains
  • House property income
  • Section 80C and 80D
  • TDS section and rate finder
  • Interest on late TDS
  • TDS late fee
  • Provident fund and ESI
  • Gratuity and leave encashment
  • Full and final settlement
  • Loan restructuring
  • Debt service cover
  • Discounted cash flow
  • Goodwill and share valuation
  • Cost variances
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