Free Accounting & Finance Tools Online

Running a business or freelancing means constantly doing small financial calculations: working out GST on an invoice, checking whether a price actually covers costs, figuring out a loan EMI before committing, or comparing tax regimes before declaring one to an employer. These tools handle the calculations that come up weekly for freelancers, small business owners and accountants, without spreadsheet formulas or paid software. Each one shows the working — the tax base as well as the tax, the total interest as well as the monthly instalment, the markup as well as the margin — because the second number is usually the one that changes a decision. Every calculator here runs instantly in your browser, gives an exact answer, and requires no signup or installation. Nothing you enter is uploaded, which matters when the figures are client rates or personal income.