Income tax helper

#Which year the figures are for

The line under the page title says the year: FY 2025-26 · AY 2026-27. FY (financial year) is the year you earned the money, 1 April 2025 to 31 March 2026. AY (assessment year) is the year after, when you file the return for it.

If today falls in a later financial year, an amber banner at the top says These figures are for FY 2025-26, not the current FY .... It means:

• The slabs, rebate and capital-gains rates used are those of FY 2025-26. Rates for the newer year are not built in yet, so nothing is worked out with them.
• The business income filled in from your invoices counts only invoices dated in FY 2025-26. Income of the newer year must be typed in by hand.

The banner is a reminder, not an error. You can still use every tab to check FY 2025-26 before filing for it.

#The five tabs

Open Income Tax from the sidebar. The buttons at the top switch between five tabs; rest the mouse on one to see what it does. The small ? at the end of the row opens this guide at the tab you are on.

The tabs work together: the Presumptive tab and the bank import fill the calculator, the calculator's tax drives the Advance Tax tab, and the ITR Summary uses all of them. What you type on the first three tabs is remembered in this browser, so you can close the app and come back. Figures read from your invoices, purchase bills and expenses are for the business selected in the sidebar; what you type stays the same whichever business is selected.

#Regime Calculator

Since FY 2023-24 every individual can choose between two ways of working out income tax:

In short: if you have big deductions (a home loan, full 80C, health insurance for parents), the old regime may cost less; otherwise the new one usually wins. The calculator works out both and tells you.

The left column, Your income, is what you type. The right column shows the result, live as you type: the Recommended card, then the Old Regime and New Regime cards side by side.

#Your income

First three questions about you. They change the old-regime slabs and some deduction limits:

Then your income for the year, in rupees:

Reset at the top of the card clears every box on this tab back to zero. (The business income fills itself in again the next time you open the screen.)

#Capital gains (special rates)

Profit from selling shares or equity mutual funds is taxed at its own rate, not your slab rate, under both regimes:

Gains on property, gold or debt funds are not entered here; ask your CA. With capital gains you may need ITR-2 or ITR-3 instead of ITR-4; see Can you file ITR-4?

#Deductions (Old Regime only)

Each box is an amount you can subtract from income under the old regime. They do not reduce new-regime tax. Under each box is its limit (Cap) and what it covers; if you type more than the limit, only the limit is counted.

The 80G box takes the amount you are allowed to claim; the 50% or 100% rule for each charity is not applied for you.

#Recommended regime

The card at the top right says Recommended: NEW Regime (green) or OLD Regime (purple), and Saves you ₹... compared to the other regime. If both cost the same, new is recommended.

• New recommended: nothing to do. It is the default when you file.
• Old recommended: with business income, file Form 10-IEA on incometax.gov.in before the return's due date, or the new regime applies anyway. Salaried people without business income choose in the return itself.

The Advance Tax tab and the ITR Summary use the recommended regime's tax.

#Old Regime and New Regime cards

Each card works out the tax step by step. The recommended one has a coloured border.

The slabs built in, for FY 2025-26:

For seniors the old regime's 0% band is ₹3 lakh (60 to 79) or ₹5 lakh (80+). The note under the cards, How this is computed, gives the order: slabs, then the 87A rebate, then surcharge, then cess.

#Presumptive income

"Presumptive" means the law presumes your profit is a fixed share of your turnover, so you do not keep full books of account or get them audited. You declare that share (or more) as income and file the simple ITR-4 (Sugam). Most small shops, traders and professionals use it.

Fill in the left card (Section), check the right card (Presumptive computation), then click Use ₹... as Business Income to send the figure to the Regime Calculator.

#Section: 44AD, 44ADA or 44AE

Click the button that fits your work. The boxes below change with it.

The boxes:

• 44AD: Turnover received DIGITALLY (UPI/NEFT/RTGS/cheque), Turnover received in CASH, and Actual profit (optional override).
• 44ADA: Gross receipts (digital), Gross receipts (cash), and Actual profit (optional override).
• 44AE: Heavy vehicles (> 12,000 kg): sum of vehicle-months (2 trucks for 12 months = 24), Heavy vehicle gross tonnage (avg) (13 to start), and Light vehicles: sum of vehicle-months.

Actual profit: if your real profit is higher than the presumed share, enter it, because you must declare the higher figure. You cannot declare less than the presumed share under these sections.

1. Find your turnoverYour sales for the year without GST are on the ITR Summary tab (Sales excl. GST).
2. Split itEnter what came by UPI, bank transfer or cheque as digital, and the rest as cash.
3. Check the resultRead the Presumptive computation card and any warning.
4. Send it to the calculatorClick Use ₹... as Business Income.

#Presumptive computation

The right card shows the working:

• 44AD and 44ADA: Turnover / gross receipts, Deemed income @ 6% / 8% (or @ 50%), and Declared income: the deemed income, or your actual profit if higher.
• 44AE: Heavy vehicles (₹1,000 × tonnes × months), Light vehicles (₹7,500 × months) and Declared income.

A yellow box warns when something is wrong: turnover over the limit (you then need regular books, ITR-3 and a tax audit under section 44AB), cash above 5% when that costs you the higher limit, more than 10 vehicles, or an actual profit lower than the presumed share.

Use ₹... as Business Income copies the declared income into Business / Professional Income on the Regime Calculator and opens that tab. For 44AD and 44ADA it also ticks Presumptive on the Advance Tax tab (pay everything by 15 March). The button is hidden when you are over the limit. The ITR-4 PDF uses this figure for business income.

#Why presumptive taxation?

The box at the bottom right lists what you gain, and the one catch:

• No full books of account and no tax audit (section 44AB).
• Advance tax in one go, by 15 March, instead of four instalments.
• The simple ITR-4 (Sugam) form instead of ITR-3.
• The catch (44AD): once you opt in, keep using it for 5 years. If you leave early, you cannot come back to 44AD for the next 5 years.

#Advance tax

Advance tax means paying income tax during the year, in parts, instead of all at the end. If your tax for the year, after TDS already cut, is ₹10,000 or more, you must pay it in four instalments:

If you use presumptive taxation (44AD or 44ADA), you may pay all of it by 15 March instead. Paying late or short costs interest of 1% a month under sections 234B and 234C. You pay advance tax on incometax.gov.in with challan 280 (e-Pay Tax).

The tab uses the Total Tax of the recommended regime from the Regime Calculator, so fill that in first.

#Advance Tax Schedule

The top card. It says Based on your recommended NEW Regime total tax of ₹....

If what is left is under ₹10,000, a green note says no advance tax required and nothing else shows. Otherwise the instalment table appears:

#Payments made

Record each advance-tax payment you have made, so the schedule and the interest are right.

1. Add a lineClick + Add payment. A line appears with today's date.
2. DateChange it to the date on your challan.
3. AmountType what you paid.
4. RemoveThe × at the end of a line removes it.

"No advance-tax payments recorded yet." shows until you add one. The payments are remembered in this browser.

#Interest under §234B / §234C

What paying late or short costs, worked out from the schedule and your payments:

• §234C — installment shortfall: 1% a month on what was short at each date, for 3 months (1 month for the March instalment). The June and September instalments are forgiven if you paid at least 12% and 36% by then.
• §234B — post year-end delay (1% per month): if by 31 March you had paid less than 90% of the tax, 1% a month on what is unpaid, from 1 April until today.
• Total interest: the two added up.

Shortfalls are rounded down to the nearest ₹100 first, as the rules say. The interest is an estimate; the department's figure on filing is final.

#Bank statement import

Turn a year of bank transactions into the figures the calculator needs: interest, rent received, 80C and 80D payments, business receipts.

1. Download a CSVFrom net-banking or your bank's app, save the statement for the year as CSV. Excel files must be saved as CSV first; PDFs are not accepted.
2. Drop it inDrag the file onto the box Drop a bank-statement CSV here or click to select, or click it and choose the file. SBI, HDFC, ICICI, Axis, Kotak, PNB and Yes Bank formats are recognised, and most others with Date, Narration, Debit, Credit and Balance columns work too. It is read on your computer; nothing is uploaded.
3. Check the categoriesEach transaction is sorted by its description. Change any that are wrong. Mark your sales receipts as Business receipts yourself.
4. Push to the calculatorClick Push to Calculator.

The imported statement is not kept after you leave the screen.

#How to get the CSV

Shown under the drop box until you import a file:

• Net-banking: Accounts, Statements, download as CSV (or as Excel, then open it in Excel and save as CSV).
• Mobile app: Account statement, Share, Export CSV.
• Choose the dates of the financial year, 1 April 2025 to 31 March 2026.
• The file is read in your browser; nothing is sent to a server.

Import one account at a time. For two accounts, import the first, push it, then import the second and push it.

#Reviewing the transactions

After the import the card is titled with the bank and the count, such as HDFC — 412 transactions. Below it, a strip of coloured totals per category, then a table with Date, Description, Debit (red), Credit (green) and Category.

The app guesses each category from the words in the description; change any by picking from the Category box on its row. The totals follow.

Push to Calculator adds these to what is already in the calculator and opens it. Each statement can be pushed once; pushing again says it is already in the calculator. Import it again to push a fresh copy. Clear throws the imported statement away.

#ITR Summary and the ITR-4 PDF

The whole year in one place, for the business selected in the sidebar. Four cards at the top, for FY 2025-26, all without GST:

#Income breakdown

Sales, less trading purchases and business expenses, gives = Net business income. Then what you typed in the calculator: + Salary declared, + Rent received, + Other sources and + Capital gains (STCG + LTCG). These last four are greyed when empty.

If you entered expenses under Asset Purchase (a computer, a machine, furniture), a note says they are not deducted here: an asset is written off over the years as depreciation (section 32). Ask your CA for the depreciation figure and enter it as a business expense.

The net business income here is from your books. It is not copied into the calculator by itself; the calculator has its own Business / Professional Income box.

#Tax snapshot

Recommended regime, Tax under NEW Regime (or OLD), Tax under other regime and You save vs other regime, all from the Regime Calculator.

Below, a grey box. If your sales are under ₹2 crore and your business type is not professional, it says You may qualify for Section 44AD presumptive taxation; see the Presumptive tab. It also gives the due dates: 31 July 2026 for the return when no audit is needed, 31 October 2026 with a tax audit, and the advance-tax dates.

#ITR-4 (Sugam) Filing Summary PDF

Download ITR-4 Summary makes a PDF with each ITR-4 field worked out, in the order of the form, to copy into incometax.gov.in or hand to your CA:

• Assessee: business name, GSTIN and PAN from Settings.
• Part A — General: PAN (or "Fill from your profile"), filing status, Aadhaar reminder.
• Nature of Business: the presumptive section and turnover, when you filled the Presumptive tab.
• B — Income: salary less standard deduction, house property, business (the presumptive income if you filled that tab, otherwise the calculator's figure), other sources, gross total income.
• C — Deductions: each Chapter VI-A deduction under the old regime, or 80CCD(2) under the new.
• D — Tax Computation: taxable income, slab tax, rebate, surcharge, cess, total tax.
• E — Advance Tax: each instalment and what you paid, when advance tax applies.

The PDF uses the recommended regime, and your PDF accent colour from Print Settings when custom colours are on. It is saved to your Downloads folder as ITR-4-Summary-YourBusiness-2026-27.pdf.

#Not included yet

The last card lists what the helper does not do, so you know what to get elsewhere: reading Form 16, a capital-gains module with broker imports, a house-property module for several properties, ITR-1, ITR-2 and ITR-3, the ITR JSON file the portal uploads, and Form 26AS reconciliation. File the return itself on incometax.gov.in or through your CA.