3 Lakh FD Interest in Post Office in 2026

Planning to invest ₹3 lakh in a safe and reliable scheme? A Post Office Fixed Deposit (FD) is one of the most trusted savings options in India, backed by the Government of India with assured returns. In 2025, Post Office FDs offer 6.90% to 7.50% interest, making them a secure alternative to low-return savings accounts. But before investing, it’s important to understand how much interest you can actually earn. Continue reading to learn about in detail which helps in making the smartest decision with your ₹3 lakh investment.

Highlights

Guaranteed returns backed by the Government of India

FD interest rates range from 6.90% to 7.50% per annum based on tenure

Quarterly compounding enhances returns

Nomination facility available, making account handling secure for families

Yearly Interest payout with option for reinvestment in 5-year FD

Premature withdrawal allowed only after 6 months and may reduce earnings

Features of FD Investments in Post Office 

Before investing and earning from ₹3 lakh FD interest in Post Office, you should know its features to compare it with other FD providers:

How Much Interest Will You Earn on a ₹3 Lakh FD in Post Office?

Post Office Time Deposit (TD) schemes offer secure and government-backed returns. The interest you earn depends on the tenure you select. Here’s how much a ₹3,00,000 fixed deposit can grow across different maturities:

Note: Post office interest rates for regular and senior citizens are the same. Senior citizens who want to opt for the higher FD rates can consider the senior citizen FD scheme.

If the same amount is invested with Suryoday Small Finance Bank, it will give more benefits. Accumulated interest for 5 year tenure at 8% p.a (quarterly compounding) will be ₹1,45,785. Upon maturity, this FD investment will generate a corpus of ₹4,45,785.

An impressive investment option, right? By choosing the right FD provider, you can maximise your returns effortlessly. On the Stable Money app, you can find more high-interest payout options from FDs by partner banks and NBFCs.

Compare 3 Lakh Fixed Deposit Interest by Post Office vs Banks and NBFCs in 2025

After understanding the features of a fixed deposit in a post office, let us compare the interest on a ₹3 lakh FD interest in Post Office for 5 years with the interest offered by banks and NBFCs for the same duration: 

By using our FD calculator when depositing in a fixed deposit with any of our partner banks, you can easily determine your interest and maturity amount. Additionally, you can refer to the comprehensive FD rate chart to compare the interest rates offered by our partner banks against those of the post office.

Applicable TDS on ₹3 Lakh FD Interest in Post Office

You need to pay a certain amount as Tax Deducted at Source or TDS on the profits or interest that you gain from an FD investment. Below are the threshold and conditions, exceeding which you become liable to taxes:

• If you are a senior citizen, you do not need to pay any TDS on your earned interest till it is under ₹50,000.
• As a regular citizen, if your income from FD interest is under ₹40,000, you are not liable for TDS deductions.
• If your income crosses the threshold limit, you need to pay a 10% TDS on the interest or gains.
• If you do not produce your PAN card, you need to pay 20% TDS on your extra earnings from your FD.

Penalty Applicability on Premature FD Withdrawal

You should know the penalty applicability in case of premature withdrawal of FDs to avoid losses and steadily from a ₹3 lakh FD interest in post office. The Post Office impose a certain penalty amount on a premature FD closure according to their policies.

Post Office FDs do not allow premature withdrawals within the first six months. If withdrawn after this period, the interest earned will be at the savings account rate. Additionally, closing a 5-year FD before maturity will result in a 2% interest rate deduction.

With Stable Money’s fixed deposits, you gain greater flexibility, as banks and NBFCs offer early withdrawal options. For instance, Suryoday Small Finance Bank allows withdrawals just 7 days after investment and does not impose any penalty on early withdrawals.

Which Post Office scheme is Best for Investing ₹3 lakh – FD, MIS, KVP or SCSS?

Choosing the right Post Office saving scheme depends on your financial goals whether you want monthly income, long-term guaranteed growth, or tax benefits. The Post Office offers four popular investment options where ₹3 lakh can be invested safely with government backing:

Things to Consider to Earn From ₹3 Lakh FD Interest in Post Office

Below are the different considerations to take into account that you should take note of:

Offered Rate of Interest: Investing in FDs is all about earning a competitive interest rate steadily till the tenure. Therefore, get an idea about any changes in interest rates by post office before investing. 

However, with Stable Money, you can earn a much higher rate of FD interest. For example, Shriram Finance Limited is offering 8.97% interest for 5 years for women over 60 years of age. 

Clauses for Premature Withdrawals: Financial emergencies might arise out of nowhere, and you might need to break your FD prematurely. Contact your post office to know about any changes in their penalty clauses.

However, you do not need to pay any penalty and can still withdraw FDs prematurely with most banks and NBFCs at Stable Money. The lock-in period is as low as 7 days after FD opening. 

Fill Out the Declaration Form 15G or 15H: If your total yearly earnings from FD interest exceeds ₹50,000 as a senior citizen, you become liable to pay income tax. Otherwise, fill out and submit Form 15H to declare that your total income is not taxable.

Regular citizens must submit Form 15G to declare that their income is non-taxable. FD account holders are required to provide this form to the issuing bank every financial year to avoid TDS deductions.

Best Tenure for Investing ₹3 Lakh in Post Office FD

For an investment of ₹3 lakh, selecting the right tenure plays a crucial role in maximising returns from your ₹3 lakh FD interest in Post Office. Based on the latest Post Office FD rates for 2026, the 5-year tenure stands out as the most rewarding option.

• 5-Year FD (7.5% p.a.) – Best Choice
• Highest interest rate available
• ₹3 lakh grows to approximately ₹4,34,984
• Eligible for tax deduction up to ₹1.5 lakh under Section 80C
• Ideal for long-term investors seeking maximum returns
• 3-Year FD (7.1% p.a.)
• ₹3 lakh grows to approximately ₹3,70,523
• Suitable for medium-term financial goals
• 2-Year FD (7.0% p.a.)
• ₹3 lakh grows to approximately ₹3,44,665
• Balanced option between returns and liquidity
• 1-Year FD (6.9% p.a.)
• ₹3 lakh grows to approximately ₹3,21,242
• Best for short-term parking of funds

Overall, if your goal is higher returns along with tax benefits, the 5-year tenure is the best option for earning maximum ₹3 lakh FD interest in Post Office.

How to Calculate Interest on a ₹3 Lakh Post Office FD

To calculate ₹3 lakh FD interest in Post Office, you need to understand that interest is compounded quarterly, even though it is paid annually. This compounding method helps increase your overall returns.

FD Interest Calculation Formula

Maturity Value = Principal * (1 + Interest Rate/4)^(n*4)

Step-by-Step Example (5-Year FD at 7.5%)

• Principal = ₹3,00,000
• Interest Rate = 7.5% (0.075)
• Compounding = Quarterly

Step 1: Divide rate by 4
→ 0.075 / 4

Step 2: Add 1
→ (1 + r/4)

Step 3: Raise to power (4 × 5 = 20)

Step 4: Multiply by principal

After calculation, the maturity amount is approximately ₹4,34,984
Total interest earned = ₹1,34,984

Interest Earnings for ₹3 Lakh FD (2026 Rates)

• 1 Year (6.9%) → Interest: ₹21,242 | Maturity: ₹3,21,242
• 2 Years (7.0%) → Interest: ₹44,665 | Maturity: ₹3,44,665
• 3 Years (7.1%) → Interest: ₹70,523 | Maturity: ₹3,70,523
• 5 Years (7.5%) → Interest: ₹1,34,984 | Maturity: ₹4,34,984

Why Use an FD Calculator?

Instead of manual calculations, you can use an FD calculator to:

• Instantly calculate ₹3 lakh FD interest in Post Office
• Compare returns across different tenures
• Avoid calculation errors
• Plan better investments

Start investing in FDs effortlessly with Stable Money—no paperwork required! Earn up to 8.50% interest from top-listed banks on the Stable Money app. Download the app or visit our website today to get started!