Free Online Tool

Presumptive Tax Calculator for 44AD, 44ADA and 44AE

Work out your deemed income under all three presumptive schemes in one place, with the 6% digital and 8% cash split for business, 50% for professionals, and the per-vehicle method for transporters, then see your tax under both regimes and whether the scheme actually saves you money.

Section 44AD business Section 44ADA professionals Section 44AE transport 6% digital and 8% cash split Actual vs deemed check Tax under both regimes

Deemed Income Model: Turnover, Receipts and Vehicles

Received through banking channels. Taxed at 6% deemed.
Received in cash. Taxed at 8% deemed.
Enter your real profit to see if the scheme helps you.
Total receipts for doctors, lawyers, architects and similar. Limit 75 lakh.
Enter your real profit to see if the 50% deemed rate helps you.
Light goods vehicles (up to 12,000 kg)
Heavy goods vehicles (over 12,000 kg)
Enter your figures and press Calculate.
Deemed taxable income
Enter details
Choose a scheme and fill in your figures.
Deemed income after tax

What Presumptive Taxation Does for a Small Business or Professional

In short: Presumptive taxation lets eligible small businesses, professionals and transporters declare a fixed percentage of turnover, receipts or a per-vehicle amount as their income, instead of maintaining full books of account and getting a tax audit. Section 44AD covers business at 8% cash and 6% digital, Section 44ADA covers professions at 50% of receipts, and Section 44AE covers goods transport at a per-vehicle rate. This calculator computes all three and shows your tax under both regimes.

For a small trader, a freelance professional or a transporter with a few trucks, the hardest part of income tax has never been the tax itself; it has been the paperwork. Maintaining detailed books of account, tracking every expense with a bill, and paying for a tax audit can cost more in time and fees than the tax saved.

Presumptive taxation exists to solve exactly this problem. Instead of proving your actual profit rupee by rupee, you declare a percentage of your turnover as deemed income, pay tax on that, and you are done. No books, no audit, no arguments with the department about which expense was allowable. For millions of small taxpayers, this single simplification is the difference between filing their own return in an afternoon and paying a professional to wrestle with a year of receipts.

It helps to see the scheme as a bargain the government offers small taxpayers. You give up the right to prove your exact profit, and in return you are freed from the entire machinery of books, vouchers and audit that larger businesses must maintain. For someone running a modest operation, that machinery can easily cost tens of thousands of rupees a year in accountant fees and countless hours of record-keeping. The presumptive scheme replaces all of it with a single percentage. Whether the bargain is good for you depends on your margin, but for a great many small businesses and professionals it is a genuine and welcome simplification.

There is also a cash-flow dimension that is easy to overlook. Regular businesses pay advance tax four times a year, in June, September, December and March, and getting each instalment wrong invites interest. Presumptive taxpayers under 44AD and 44ADA sidestep this entirely, paying their whole advance tax in one go by 15 March. For a business whose income arrives seasonally, or a professional whose fees are lumpy, being able to settle the tax once at the end of the year, when the income is actually known, removes a real source of stress and error.

The scheme comes in three flavours, each for a different kind of taxpayer, and this is where confusion usually starts. Section 44AD is for businesses: traders, shopkeepers, manufacturers, small contractors. It presumes your income is 8% of your turnover received in cash and 6% of your turnover received digitally, and you can mix the two in a single return.

Section 44ADA is for specified professionals: doctors, lawyers, architects, chartered accountants, engineers, consultants. It presumes your income is a flat 50% of your gross receipts. Section 44AE is entirely different: it is for the business of plying, hiring or leasing goods carriages, and it presumes a fixed amount per vehicle per month, regardless of turnover.

The eligibility limits matter because crossing them throws you out of the scheme. For Section 44AD, your turnover must not exceed ₹2 crore, raised to ₹3 crore if your cash receipts are 5% or less of the total.

For Section 44ADA, gross receipts must not exceed ₹50 lakh, raised to ₹75 lakh under the same 5% cash condition. For Section 44AE, the test is not turnover at all but the number of vehicles: you must not own more than 10 goods carriages at any point during the year, even for a single day. This calculator checks each of these limits and tells you at once whether you qualify. Crossing a limit does not just mean a higher rate; it means the presumptive scheme is unavailable altogether, forcing you back to full books and audit, so knowing where you stand against the threshold is essential before you rely on the scheme.

The single most important idea, and the one most calculators skip, is that presumptive taxation only helps you if your actual profit margin is below the deemed rate. If you genuinely earn 15% on your turnover but the scheme lets you declare 6%, you save real tax. But if your real margin is only 3%, the scheme makes you pay tax on a deemed 6% or 8%, more than you actually earned. This tool lets you enter your actual profit and tells you plainly whether the scheme is working for you or against you. To carry the deemed income through to your final bill, use our income tax calculator, and if you run a salaried job alongside your business, our salary breakup calculator helps you see the full picture.

How Each Scheme Computes Your Deemed Income

The three sections use completely different methods. Understanding which one applies, and how it works, is the first step to filing correctly.

1

Section 44AD for business

Split your turnover into the part received digitally and the part received in cash. Apply 6% to the digital part and 8% to the cash part, and add them. That total is your deemed income. Pushing more receipts digital genuinely lowers your deemed income.

2

Section 44ADA for professionals

Take your total gross professional receipts and declare 50% as income. There is no cash-versus-digital split here; the rate is a flat half of receipts. The remaining half is deemed to cover all your expenses, whether or not you actually spent that much, which is why the scheme suits professionals with low overheads best.

3

Section 44AE for transport

For each light goods vehicle, count ₹7,500 for every month you owned it. For each heavy vehicle over 12,000 kg, count ₹1,000 per tonne of gross weight per month. A part of a month counts as a full month. Add every vehicle to get your deemed income, remembering that even a single day of ownership in a month counts that whole month.

4

Declare the higher of deemed or actual

The new Income-tax Act clarifies you must declare the higher of the deemed rate or your actual profit. You can always declare more; to declare less you must exit the scheme, keep books and get an audit, which for 44AD locks you out for five years.

The distinction between the three sections is not a formality; picking the wrong one produces a wrong return. A doctor cannot use 44AD, because medicine is a specified profession that belongs under 44ADA. A trucker cannot use 44AD either, because goods transport has its own dedicated section in 44AE. And a shopkeeper cannot use 44ADA, because retail is a business, not a profession. The calculator asks you to choose the scheme first precisely because everything downstream, the rate, the limit, the eligibility test, depends on getting that choice right. If you are unsure which category your work falls into, that is the first thing to settle with an adviser.

Once you have your deemed income, it is simply added to your other income and taxed at the normal slab rates under whichever regime you choose.

The calculator does this automatically, showing your tax under both the old and new regimes so you can pick the cheaper one. A crucial cash-flow benefit follows: under Sections 44AD and 44ADA, you pay your entire advance tax in a single instalment by 15 March, instead of the usual four instalments spread across the year, which is a real relief for seasonal or irregular income. The calculator flags this deadline for you, along with the five-year lock-in and the vehicle cap, so the compliance rules are visible alongside the numbers rather than buried in the fine print.

Presumptive Scheme Rates and Limits for a Reference

The tables below set out the rate, the turnover or receipt limit, and the key conditions for each section, current for FY 2025-26. These carry forward unchanged into Section 58 of the new Income-tax Act, 2025.

SectionWhoDeemed incomeLimit
44ADBusiness8% cash, 6% digital2 crore, 3 crore if cash under 5%
44ADAProfessionals50% of receipts50 lakh, 75 lakh if cash under 5%
44AETransportPer vehicle per monthUp to 10 vehicles
Section 44AE rateAmount per month
Light goods vehicle, up to 12,000 kg7,500 per vehicle
Heavy goods vehicle, over 12,000 kg1,000 per tonne of weight
Part of a monthCounted as a full month
Advance taxNormal rules, not single instalment

A subtle point on the enhanced limits deserves attention because it catches people out. The higher thresholds, ₹3 crore for business and ₹75 lakh for professionals, are not automatic. They apply only if your cash receipts are 5% or less of your total receipts, and the law is strict about what counts as cash. A receipt by an ordinary bearer cheque, or a non-account-payee draft, is treated as cash for this test even though it feels like a banking transaction. So a business that assumes it qualifies for the ₹3 crore limit, but has a meaningful chunk of bearer-cheque receipts, may find itself pushed back to the ₹2 crore limit and out of the scheme. Checking the exact composition of your receipts is therefore genuinely worth the effort.

These rates and limits are set by the Income Tax Department and are unchanged for the current year. The enhanced ₹3 crore and ₹75 lakh limits, introduced by the Finance Act 2023, apply only where cash receipts are 5% or less of the total, and receipts by non-account-payee cheque are treated as cash for this test. You can verify the current provisions on the Income Tax Department portal, and the detailed rules for each section are published by the Income Tax Department. One key point on 44AE: unlike 44AD, it has no five-year lock-in, so a transporter can move in and out of the scheme each year as their fleet changes.

Three Worked Cases Across Mumbai, Bengaluru and Delhi

These three taxpayers show the calculator handling each scheme: a business with mixed receipts, a high-earning professional, and a transporter with a mixed fleet. Each ends with the deemed income and the tax.

R
Rahul, Mumbai
Kirana shop under Section 44AD
44AD business

Rahul runs a grocery shop with a turnover of ₹1.2 crore in FY 2025-26. Of this, ₹96 lakh came through UPI and card payments and ₹24 lakh in cash.

His actual profit, after all costs, was about ₹5 lakh. He wants to use Section 44AD to avoid maintaining full books, and he files under the new regime. The calculator applies the split rate to his two kinds of receipts.

Digital at 6%
₹5,76,000
Cash at 8%
₹1,92,000
Deemed income
₹7,68,000
Tax, new regime
Nil

His deemed income is ₹5,76,000 on the digital turnover plus ₹1,92,000 on the cash turnover, totalling ₹7,68,000. Under the new regime, this falls below the ₹12 lakh rebate ceiling, so his income tax is nil, a striking result driven by the enhanced rebate.

There is a catch worth noting: his deemed income of ₹7,68,000 is higher than his actual profit of ₹5 lakh, so he is declaring more income than he really made. He accepts this because the deemed figure still attracts no tax, and it saves him the cost and hassle of books and an audit entirely. Had he been in the old regime, the same deemed income would have attracted about ₹68,744 in tax, which is exactly why the calculator shows both regimes so he can choose the new one.

Takeaway: shifting receipts to digital cuts the deemed rate from 8% to 6%, and under the new regime a deemed income below 12 lakh can attract no tax at all.
S
Dr Sneha, Bengaluru
Doctor under Section 44ADA
44ADA profession

Dr Sneha runs a clinic with gross professional receipts of ₹60 lakh, all received through bank transfer. Her actual profit, because her running costs are modest, is about ₹45 lakh.

She is a specified professional, so Section 44ADA applies, and she must declare 50% of her receipts as income. She wants to know whether the scheme saves her tax compared to declaring her real profit.

Gross receipts
₹60 lakh
Deemed at 50%
₹30 lakh
Actual profit
₹45 lakh
Tax, new regime
₹4,99,200

Her deemed income under Section 44ADA is 50% of ₹60 lakh, which is ₹30 lakh. This is well below her actual profit of ₹45 lakh, so the scheme saves her a great deal: she declares and pays tax on ₹30 lakh instead of ₹45 lakh, a ₹15 lakh reduction in taxable income.

Her tax on ₹30 lakh under the new regime is about ₹4,99,200. For a professional whose real margin is high, above the deemed 50%, Section 44ADA is genuinely valuable, and the calculator confirms the saving instantly. The tool shows her actual profit alongside the deemed figure and states plainly that the scheme is working in her favour, removing any doubt about whether to opt in.

Takeaway: for a professional whose real profit exceeds 50% of receipts, declaring the deemed 50% under 44ADA legitimately lowers taxable income.
I
Iqbal, Delhi
Goods transporter under Section 44AE
44AE transport

Iqbal owns a small fleet: four light goods vehicles and two heavy trucks with a gross weight of 18 tonnes each, all owned for the full year. Section 44AE applies because he has fewer than 10 vehicles, and his income is computed per vehicle per month, not on turnover. He files under the new regime and wants his deemed income and tax.

Light, 4 vehicles
₹3,60,000
Heavy, 2 vehicles
₹4,32,000
Deemed income
₹7,92,000
Tax, new regime
Nil

His four light vehicles earn a deemed ₹7,500 each per month, which over twelve months is ₹3,60,000. His two heavy trucks earn ₹1,000 per tonne per month, so at 18 tonnes each that is ₹18,000 per truck per month, or ₹4,32,000 for both over the year.

His total deemed income is ₹7,92,000, and under the new regime this falls below the rebate ceiling, so his tax is nil. Section 44AE has no five-year lock-in, so Iqbal can choose afresh each year whether the per-vehicle deemed income beats computing his actual profit with depreciation. In a year when a truck sits idle for months, computing actual profit with depreciation might beat the deemed figure, and he is free to switch without penalty.

Takeaway: 44AE income is fixed per vehicle, so a well-utilised fleet often pays less deemed tax than its real profit, and there is no lock-in to worry about.

The three cases together show why one calculator for all three schemes is genuinely useful. Rahul, Sneha and Iqbal are taxed by completely different methods, a turnover split, a flat professional rate, and a per-vehicle formula, yet each faces the same underlying question: does declaring the deemed figure beat declaring my actual profit, and what regime makes it cheapest? Answering that by hand means juggling three different rulebooks. The tool collapses all of it into one screen, so a small taxpayer can see their real position in seconds rather than paying to have it worked out.

Expert Tips to Use Presumptive Taxation Wisely

The presumptive scheme is powerful but has traps that catch the unwary. These habits, drawn from how advisers guide small businesses and professionals, help you use it to your genuine advantage.

The recurring theme is that the scheme rewards planning. Its benefits, the lower digital rate, the higher limits, the single advance-tax instalment, all reward a taxpayer who understands the rules and arranges their affairs accordingly, while its traps, the lock-in and the vehicle cap, punish those who drift in without thinking. A little attention up front turns it into a genuine advantage.

01

Compare your real margin first

The scheme only helps if your actual profit is below the deemed rate. Work out your real margin before opting in, because if you genuinely earn less than 6%, 8% or 50%, you will pay tax on income you never made.

02

Push receipts to digital

Under 44AD the digital rate is 6% against 8% for cash. Moving customers to UPI and bank transfer not only lowers your deemed income but also helps you qualify for the higher ₹3 crore turnover limit.

03

Respect the five-year lock-in

If you opt into 44AD and then opt out, you are barred from the scheme for five years and must keep books and get audited. Do not switch casually; treat the choice as a multi-year commitment.

04

Pay advance tax by 15 March

Under 44AD and 44ADA your whole advance tax is due in one instalment by 15 March. Missing it attracts interest under Section 234C, so set the reminder even though you skip the earlier instalments.

05

Watch the vehicle count for 44AE

The 10-vehicle cap is a maximum at any instant, not an average. If you owned an eleventh truck even for a day, you lose 44AE for the whole year, so track ownership dates carefully.

06

File ITR-4 and declare fully

Presumptive taxpayers file ITR-4 Sugam. Declare at least the deemed income; declaring less without books and an audit invites a notice, so never understate to save a little tax.

Presumptive Taxation at a Glance

This table gathers the numbers you will reach for most across all three schemes. If you remember only two things, let them be that digital receipts get the cheaper 6% rate under 44AD, and that the scheme only saves you tax when your real margin exceeds the deemed rate.

QuestionAnswer
44AD business rate8% cash, 6% digital of turnover
44ADA profession rate50% of gross receipts
44AE light vehicle7,500 per vehicle per month
44AE heavy vehicle1,000 per tonne per month
44AD turnover limit2 crore, 3 crore if cash under 5%
44ADA receipt limit50 lakh, 75 lakh if cash under 5%
44AE vehicle limit10 goods carriages maximum
Advance tax 44AD and 44ADAOne instalment by 15 March
ITR formITR-4 Sugam

Presumptive Tax Calculator: Frequently Asked Questions

What is presumptive taxation?

Presumptive taxation is a simplified scheme that lets eligible small taxpayers declare a fixed percentage of their turnover or receipts as taxable income, instead of maintaining detailed books of account and undergoing a tax audit.

Under Section 44AD, businesses declare 8% of cash turnover and 6% of digital turnover; under Section 44ADA, professionals declare 50% of gross receipts; and under Section 44AE, transporters declare a fixed amount per vehicle per month. The scheme trades a slightly rough estimate of income for a huge saving in compliance cost and effort, which is why it is so popular with small traders, freelancers and fleet owners. It is one of the most widely used provisions in the entire income tax code, precisely because it meets the real needs of small taxpayers who lack the resources for elaborate accounting.

Who can use Section 44AD?

Section 44AD is available to resident individuals, Hindu Undivided Families and partnership firms, but not limited liability partnerships, that run an eligible business with turnover up to ₹2 crore, or ₹3 crore if cash receipts are 5% or less of the total. It excludes professionals covered by Section 44ADA, transporters covered by Section 44AE, agency businesses, and anyone earning commission or brokerage.

It also excludes non-residents and taxpayers claiming certain deductions. If you run a shop, a manufacturing unit, a trading business or a small contracting firm and meet the turnover limit, Section 44AD is very likely available to you, and it is the most widely used of the three schemes.

What is the difference between 8% and 6% under 44AD?

Under Section 44AD, the deemed income rate depends on how you received the money. For turnover received in cash, the rate is 8%. For turnover received through banking channels, meaning UPI, NEFT, RTGS, cheque or bank transfer, the rate is lower at 6%.

This 2 percentage point difference rewards digital receipts and was introduced to encourage a cashless economy. You can mix the two in a single return: apply 6% to the digital portion of your turnover and 8% to the cash portion, then add them. Shifting more of your receipts to digital genuinely reduces your deemed income and therefore your tax.

Who qualifies for Section 44ADA?

Section 44ADA is for specified professionals whose gross receipts do not exceed ₹50 lakh, raised to ₹75 lakh if cash receipts are 5% or less of the total. The specified professions include medicine, law, engineering, architecture, accountancy, technical consultancy, interior decoration and other professions notified by the Board.

If you are a doctor, lawyer, chartered accountant, architect, engineer or consultant working independently, and your receipts are within the limit, you can declare 50% of your gross receipts as income under Section 44ADA. The scheme is especially valuable for professionals with low overheads, whose real profit margin exceeds 50%, since they legitimately declare less than they earn.

How does Section 44AE work for transporters?

Section 44AE applies to the business of plying, hiring or leasing goods carriages, where you own no more than 10 vehicles at any time in the year. The income is computed per vehicle per month, not on turnover. For a light goods vehicle up to 12,000 kg, the deemed income is ₹7,500 for every month or part of a month you owned it.

For a heavy goods vehicle over 12,000 kg, it is ₹1,000 per tonne of gross vehicle weight per month. A part of a month counts as a full month. You add the deemed income for every vehicle to get your total, and you can declare a higher amount if your actual income is higher.

Does presumptive taxation help me or cost me?

It depends entirely on your actual profit margin. The scheme helps you if your real profit is higher than the deemed rate, because you then declare and pay tax on less than you actually earned. For example, a professional who really keeps 70% of receipts but declares only 50% under 44ADA saves genuinely.

But if your real margin is lower than the deemed rate, the scheme makes you pay tax on income you never made. A trader with a 3% margin who must declare 6% or 8% is worse off on tax, though they still save the cost of books and audit. This calculator lets you enter your actual profit and tells you which situation you are in.

What is the five-year lock-in under Section 44AD?

Under Section 44AD(4), once you opt into the presumptive scheme, you are expected to continue for at least five consecutive years. If you opt out in any of those years by declaring income below the deemed rate, you are barred from using Section 44AD for the next five assessment years.

During that bar, if your total income exceeds the basic exemption limit, you must maintain full books of account and get them audited. This lock-in exists to stop taxpayers from flitting in and out of the scheme to their advantage each year. It applies only to Section 44AD; Sections 44ADA and 44AE have no such lock-in, so professionals and transporters can choose freely each year.

When do I pay advance tax under the presumptive scheme?

Under Sections 44AD and 44ADA, you enjoy a significant simplification: your entire advance tax for the year is due in a single instalment by 15 March, rather than in the four instalments spread across June, September, December and March that regular taxpayers face. This is a real cash-flow benefit, especially for seasonal businesses.

However, you must still pay the full amount by 15 March; missing it attracts interest under Section 234C. Note that Section 44AE transporters do not get this single-instalment concession in the same way and generally follow the normal advance tax rules, so check your section carefully.

Can I declare income lower than the deemed rate?

You can, but it comes at a cost. To declare income lower than the presumptive rate, you must exit the scheme, maintain full books of account, and get a tax audit under Section 44AB if your total income exceeds the basic exemption limit.

For Section 44AD, doing this also triggers the five-year lock-out. So while it is legally possible to declare your lower actual profit, you lose all the simplicity the scheme offered. The new Income-tax Act has clarified that you must declare the higher of the deemed rate or your actual profit if you stay in the scheme, closing a loophole where high earners declared only the minimum deemed percentage.

Which ITR form do I file for presumptive income?

Taxpayers using the presumptive schemes under Sections 44AD, 44ADA and 44AE file ITR-4, also called Sugam. It is a simplified return form with much less disclosure than ITR-3, which suits the reduced record-keeping the scheme allows.

You can use ITR-4 provided your total income is within the applicable limits and you meet the other conditions, such as not having income from more than one house property or capital gains above certain thresholds. If you have income that ITR-4 does not accommodate, you may need to file ITR-3 instead, even while using the presumptive computation for your business or professional income.

Do I still need to maintain any records?

The great benefit of the presumptive scheme is that you are exempt from maintaining the detailed books of account that Section 44AA otherwise requires, and from the tax audit under Section 44AB, provided you declare at least the deemed income.

That said, it is sensible to keep basic records of your turnover, your bank statements and your major transactions, because the department can still ask you to substantiate your turnover figure. You do not need to track every expense with a bill, which is the real relief, but you should be able to show how you arrived at your total turnover or receipts if questioned.

What counts as digital receipts for the 6% rate?

Digital receipts are amounts received through banking channels: UPI, NEFT, RTGS, IMPS, debit or credit card, account payee cheque, account payee bank draft, or any other electronic mode. These attract the lower 6% deemed rate under Section 44AD and count towards the 95% digital threshold for the enhanced ₹3 crore limit.

Importantly, receipts by non-account-payee cheque or non-account-payee bank draft are treated as cash, not digital, for these purposes. So to get the 6% rate and the higher turnover limit, ensure your customers pay through genuine banking channels and that any cheques are account payee, otherwise they will be counted as cash at the 8% rate.

Can a firm use presumptive taxation?

A partnership firm, but not a limited liability partnership, can use Sections 44AD and 44AE. Section 44ADA, for professionals, is available to resident individuals and to firms of professionals, again excluding LLPs.

Companies cannot use any of these presumptive schemes; they follow the normal computation. One point firms should note is that under the presumptive scheme, the deemed income is the firm’s income before any deduction, and partner remuneration and interest on capital are treated as already covered within the deemed rate, so they cannot be separately deducted. This changed some years ago and often surprises firms accustomed to deducting partner salaries. So a firm weighing the presumptive scheme should compare its deemed income against its actual profit after partner remuneration, because the two figures can differ substantially and change which route is cheaper.

Does the new Income-tax Act 2025 change presumptive taxation?

The new Income-tax Act, 2025, which took effect on 1 April 2026, consolidates the three separate sections, 44AD, 44ADA and 44AE, into a single Section 58, using serial numbers within the section to distinguish business, transport and professions. This is a structural reorganisation, not a policy change: the rates of 6%, 8% and 50%, the per-vehicle amounts, the turnover and receipt limits, and the conditions all carry forward exactly as before.

The Board has confirmed that no fresh election or re-filing is required. So for the current year and going forward, the numbers this calculator uses remain correct, and you can rely on the same computation whether you think in terms of the old sections or the new Section 58.

Can I use presumptive taxation for F and O trading?

This is a common and tricky question. Futures and options trading is a business, and in principle a small F&O trader might consider Section 44AD.

However, the interaction is nuanced: F&O has its own method of computing turnover, which is not simply the value of contracts, and the audit thresholds work differently. Many traders wrongly assume presumptive taxation neatly covers their trading, when in fact their computed turnover and their actual profit or loss need careful handling. If you trade derivatives seriously, do not assume 44AD applies without checking how F&O turnover is calculated, and consider professional advice, because getting it wrong can trigger an unexpected audit requirement.

Does this calculator give my final tax?

It gives your deemed income under the scheme you choose and an estimate of the income tax on that deemed income under both regimes, including the standard rebate and cess. It assumes the deemed income is your only income; if you have other income, such as a salary, rent or interest, that must be added before your final tax is worked out.

Use this tool to establish your deemed business or professional income correctly, then take that figure, together with any other income, to a full income tax calculator for your complete liability. The value here is getting the presumptive computation right, which is the part that trips people up. Once your deemed income is fixed correctly, adding a salary or some interest income and running the slabs is straightforward, and any full income tax calculator will do it, so the hard and error-prone step is the one this tool handles for you.