TAX TOOLS · TAX YEAR 2026-27
Work out the numbers before the deadline does.
21 free calculators, checkers and worksheets for income tax, GST and business compliance. Each states the year and the law it applies, and runs in your browser without storing what you enter.
INCOME TAX · TAX YEAR 2026-27
Plan this year's tax
1961 → 2025 Section Mapper
Type 80C, 234C, 194J or any old section to find its number in the Income-tax Act, 2025, from the department's own cross-reference.
Open ↗01Old vs new regime calculator
Compare both regimes under the Income-tax Act, 2025 with HRA, s.123, NPS and s.126 limits, the break-even point and unused headroom.
Open ↗02Advance tax calculator
Work out the instalments due on 15 June, 15 September, 15 December and 15 March, and the interest if one is missed.
Open ↗03HRA exemption calculator
Apply the least-of-three rule, with the eight 50% cities, and see how rent and salary structure change the exempt amount.
Open ↗04Presumptive taxation, section 58
Check the 6%, 8% and 50% presumptive rates and turnover limits for small businesses and professionals.
Open ↗05TDS rate finder
Search any payment, such as rent, contractor, professional fees or dividend, to see the rate, threshold, section and form.
Open ↗06NRI refund and repatriation check
See where an NRI's refund can be credited, the repatriation route and the ways to reduce TDS lawfully.
Open ↗RETURNS FOR FY 2025-26 · AY 2026-27
File last year's return correctly
Regime calculator, AY 2026-27
For returns of income earned up to 31 March 2026, under the 1961 Act rates, rebate and marginal relief.
Open ↗08Which ITR form applies?
Answer a few questions to see whether ITR-1, 2, 3 or 4 applies, and the rule that decides it.
Open ↗09Tax audit applicability checker
Test turnover, cash-receipt and presumptive conditions to see whether a tax audit is required.
Open ↗GST
Registration and scheme choice
BUSINESS SET-UP & COMPLIANCE
Start and stay compliant
Business structure selector
Compare proprietorship, partnership, LLP, OPC and private company against your plans for funding, liability and tax.
Open ↗13Udyam classification checker
Find whether the enterprise is micro, small or medium on investment and turnover.
Open ↗14DPIIT recognition eligibility
Check age, turnover and structure conditions for startup recognition under the 2026 rules.
Open ↗15FSSAI licence selector
Basic registration, state licence or central licence, based on turnover and activity.
Open ↗16RERA applicability checker
See whether a real-estate project must be registered under RERA.
Open ↗17Compliance calendar builder
Switch on GST, TDS, ROC, payroll and other obligations to get your own due-date list for FY 2026-27.
Open ↗18Registration document checklists
Document lists for GST, Udyam, Maharashtra PT, company and LLP registration.
Open ↗BUSINESS FINANCE
Cash, reporting and controls
How these tools are prepared
- Each tool states the tax year, the sections it applies and the date the rates were last checked.
- Rates and limits are taken from the Income Tax Department's published text of the Act, not from secondary summaries.
- The working is shown line by line, so you can follow every figure.
- The tools cover common situations. Where your facts go beyond them, such as special-rate income, losses or business deductions, the result is a starting point, not a conclusion.
General educational material. It does not constitute a professional opinion. Discuss your situation with the firm.