01
Enter the donation
Add the amount you donated and pick the institution's 80G category from its receipt.
80G Calculator
Find your tax deduction on donations to charities and funds.
Updated Reviewed by Sajid Hussain· Editor
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Results update in real time as you type — no submit needed.
Your numbers
80G bills sellers in Indian Rupee (INR), so this calculator works in INR — not your selected US Dollar ($). Every figure below matches your real 80G statement. Localised USD marketplaces are coming soon.
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Last updated
June 14, 2026
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India Tax Tool
What Is an 80G Calculator?
An 80G calculator shows the income tax you save on charitable donations — applying the institution's 100% or 50% rate, the 10% qualifying limit where it applies, and your slab to reveal the rupees saved.
**It applies the right rate.** Some funds allow a 100% deduction, most NGOs only 50%. The calculator uses the category on your donation receipt so the deduction is accurate, not assumed.
**It enforces the 10% limit.** For "subject to limit" categories, only donations up to 10% of your adjusted gross total income count. The calculator caps the eligible amount and flags when your donation exceeds it.
**It tells you the rupees saved.** Beyond the deduction, it shows the tax saved at your slab plus cess — so you can see the real after-tax cost of giving.
**It flags the rules.** Cash donations above ₹2,000 do not qualify, and 80G applies only under the old regime — the calculator surfaces both so your claim stands.
Quick facts
- Rates
- 100% or 50%
- Qualifying limit
- 10% of income
- Cash limit
- ₹2,000
- Regime
- Old regime only
- Separate from
- 80C and 80D
- Free to use
- No sign-up needed
How It Works
Calculate Your 80G Saving in Three Steps
02
Add income and slab
For limit categories, enter your adjusted income so the 10% cap applies; then pick your slab.
03
See the deduction and saving
See the eligible donation, the 80G deduction, and the tax you save.
Steps to use the 80G Calculator: Enter the donation, Add income and slab, See the deduction and saving.
The Formula
How the 80G Deduction Is Worked Out
01
Qualifying limit
Limit = 10% × adjusted gross total income
For "subject to limit" categories, donations count only up to 10% of your adjusted income.
Example: 10% × ₹10,00,000 = ₹1,00,000
02
Eligible donation
Eligible = min(donation, qualifying limit)
The donation considered is the lower of what you gave and the qualifying limit (no cap for "no limit" funds).
Example: min(₹50,000, ₹1,00,000) = ₹50,000
03
Deduction & tax saved
Deduction = rate% × eligible ; saving = deduction × slab% × 1.04
The 100% or 50% rate gives the deduction; your slab plus cess turns it into tax saved.
Example: 50% × ₹50,000 = ₹25,000 → ₹7,800 at 30%
Worked Example
Walkthrough (₹50,000 to an NGO, 50% with limit, 30% slab)
Currency note: the example below uses a benchmark scenario priced in Indian Rupee (INR). Values are converted to US Dollar (USD) at the latest exchange rate so you can compare against your own numbers.
Scenario
A ₹50,000 donation to a registered NGO (50%, subject to the limit), with ₹10,00,000 of adjusted income, at the 30% slab.
1
Step 1 · Qualifying limit
10% of the ₹10,00,000 adjusted income sets the most that can count.
Limit = $100,000.00
2
Step 2 · Eligible & deduction
The ₹50,000 is within the limit, and the 50% rate applies.
Deduction = $25,000.00
3
Step 3 · Tax saved
At 30% plus 4% cess, the deduction saves real tax.
Tax saved = $7,800.00
The takeaway
A ₹50,000 NGO donation gives a $25,000.00 deduction and saves $7,800.00 at the 30% slab — so the real cost of giving is about ₹42,200. A 100% fund would double the deduction for the same donation.
By category
What a ₹50,000 Donation Deducts
| Metric | Poor | Average | Good | Excellent |
|---|---|---|---|---|
100% deduction Saves ₹15,600 at the 30% slab | ₹50,000 | |||
50% deduction Saves ₹7,800 at the 30% slab | ₹25,000 | |||
Qualifying limit Caps "subject to limit" donations | 10% of income |
Comparison
Calcrux vs ClearTax vs Generic Calculators
| Feature | Calcrux (Free) | ClearTax | Generic |
|---|---|---|---|
| 100% and 50% categories | |||
| Applies the 10% qualifying limit | |||
| Flags donations over the limit | |||
| Cash-above-₹2,000 warning | |||
| Tax saved at your slab + cess | |||
| Free, no sign-up required |
Common Mistakes
80G Mistakes to Avoid
Claiming the full donation as deduction
Why it matters
Most donations are deductible at only 50%, and limit categories are capped at 10% of income — claiming 100% over-states it.
Fix
Use the category on your receipt; the calculator applies the right rate and limit.
Donating large cash amounts
Why it matters
Cash donations above ₹2,000 do not qualify for 80G at all, so the deduction is lost.
Fix
Pay by cheque, card, UPI or net-banking for any donation you intend to claim.
Ignoring the 10% qualifying limit
Why it matters
A large donation to a limit-category charity counts only up to 10% of adjusted income — the rest earns no deduction.
Fix
Enter your adjusted income so the calculator caps the eligible donation correctly.
Missing Form 10BE
Why it matters
Without the donation certificate (Form 10BE) and the institution's 80G number, the claim can be disallowed.
Fix
Collect the stamped receipt and Form 10BE, and check the donation reflects in your AIS.
Trying to claim 80G on the new regime
Why it matters
The new regime disallows 80G, so the donation deduction is not available there.
Fix
Claim 80G only on the old regime, and compare both regimes before choosing.
Pro Tips
Get the Most From 80G
Prefer 100% funds
For the same outlay, a 100% fund doubles the deduction versus a 50% NGO. Check the category before donating.
Always pay digitally
Pay by UPI, card or net-banking so any amount qualifies — cash above ₹2,000 is disallowed.
Mind the 10% cap
Very large donations to limit-category charities are capped at 10% of income. Spread or plan around it.
Keep Form 10BE
Collect the donation certificate every year — it is the proof the assessing officer looks for.
Stack with 80C and 80D
80G is separate from your investment and health deductions. Claim all three under the old regime.
Who Uses This
Who Uses This 80G Calculator
The 80G Calculator works across every stage of the workflow.
Regular donors
Someone who gives to an NGO checks the deduction and the real after-tax cost of their donation.
Large one-time givers
A donor making a big contribution checks whether the 10% qualifying limit caps their deduction.
Salaried taxpayers
An employee adds an 80G donation to their other deductions before filing under the old regime.
CSR and relief contributors
Someone donating to a national relief fund confirms the 100% deduction with no limit.
Old-vs-new regime deciders
A taxpayer quantifies the 80G saving to weigh the old regime against the new one.
Glossary
Key 80G Terms
Every important term you'll encounter in this calculator and the broader topic.
- Section 80G
- The income-tax section allowing a deduction for donations to approved funds and charities, under the old regime.
- Qualifying Limit
- For "subject to limit" categories, the cap on deductible donations — 10% of adjusted gross total income.
- Adjusted Gross Total Income
- Gross total income reduced by other Chapter VI-A deductions and certain incomes — the base for the 10% limit.
- 100% vs 50% Deduction
- The share of a donation that is deductible, set by the institution's 80G approval — 100% for specified funds, 50% for most NGOs.
- Form 10BE
- The donation certificate an 80G institution must issue, proving the donation for your tax claim.
- Marginal Slab Rate
- The income-tax rate on your top slice of income. The 80G saving equals the deduction times this rate, plus cess.
Help & answers
Frequently asked questions
Everything you need to know about how the 80G Calculator works.
01What is an 80G calculator?
An 80G calculator works out your tax deduction on charitable donations. It applies the institution's 100% or 50% rate, caps limit-category donations at 10% of your adjusted income, and shows the tax you save at your slab.
02How much tax do I save on a donation under 80G?
It depends on the rate and your slab. A ₹50,000 donation at 50% gives a ₹25,000 deduction, saving ₹7,800 at the 30% slab. The same donation at 100% gives a ₹50,000 deduction, saving ₹15,600.
03What is the 80G deduction limit?
There is no overall cap, but two categories are limited: donations "subject to the qualifying limit" count only up to 10% of your adjusted gross total income. Donations to "no limit" funds have no such ceiling.
04What is the difference between 100% and 50% deduction?
Some funds (like the PM National Relief Fund) allow 100% of the donation as a deduction; most registered NGOs allow 50%. The rate is set by the institution's 80G approval and shown on your donation receipt.
05What is the 10% qualifying limit?
For "subject to limit" categories, the donation that counts is capped at 10% of your adjusted gross total income. The 100% or 50% rate is then applied to the lower of the donation and that 10% limit.
06Can I claim 80G in the new tax regime?
No. Section 80G is allowed only under the old tax regime. If you opt for the new (default) regime you cannot claim donation deductions, so this calculator is for old-regime taxpayers.
07Can I donate in cash and claim 80G?
Only up to ₹2,000 in cash. Donations above ₹2,000 must be paid by cheque, card, UPI or net-banking to qualify for 80G. Donations in kind (goods, food, clothes) do not qualify at all.
08What documents do I need to claim 80G?
A stamped donation receipt showing the institution's name, PAN and 80G registration number, plus Form 10BE (the donation certificate the institution issues). The donation must also appear in your AIS.
09How do I know my donation's 80G category?
The institution's 80G receipt states the deduction rate and whether it is subject to the qualifying limit. Most charitable NGOs fall under "50%, subject to the 10% limit"; specified national funds are "100%, no limit".
10Is 80G separate from the 80C limit?
Yes. The 80G donation deduction is completely separate from the ₹1.5 lakh 80C limit and the 80D health deduction. You can claim 80G on top of both to reduce taxable income further, under the old regime.
11Does 80G reduce my tax or my income?
It reduces your taxable income. You then save tax on that amount at your slab rate plus cess — so a ₹25,000 deduction at 30% saves ₹7,800, not ₹25,000.
12Is this 80G calculator free and accurate?
Yes — it is free, needs no sign-up, and applies the 100%/50% rates and the 10% qualifying limit. Confirm the institution's 80G category and registration on the receipt before relying on the figure.
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