PNB 666-Day Fixed Deposit in 2026: What Savers Should Check on Rate and Investment Limit

Punjab National Bank's 666-day fixed deposit has drawn attention, according to reporting by India TV News, which covered the interest offered and the maximum amount a depositor can place in the scheme. For savers, the takeaway is practical: this is a special-tenor deposit of a little under two years, and its value depends on the rate gap against regular deposits and on the investment cap.

The headline does not give us the rate slabs or the exact ceiling, so this guide explains how such schemes work, what to verify with the bank, and how to judge the return for your own situation before you commit money.

Key takeaways

• A 666-day FD is a special-tenor deposit, roughly one year and ten months, that banks offer alongside their regular term deposits.
• As reported by India TV News, the story covers both the interest rate and a maximum investment amount, so check the cap before planning your deposit size.
• The real test is the difference from the bank's ordinary one-year and two-year rates, not the tenor label.
• Interest is taxable, and TDS applies once interest at a bank crosses the annual threshold unless you submit the right form.
• Deposit insurance covers up to ₹5 lakh per depositor per bank, principal and interest combined, so large sums deserve splitting.

What is the 666-day fixed deposit?

A fixed deposit locks your money with a bank for a set period at a rate fixed on the day you book it. Most banks publish standard tenors such as 7 days to 10 years, and then add a small number of special tenors with odd durations, for example 222, 333, 444 or 666 days. The 666-day scheme reported by India TV News belongs to this family.

The odd number is a marketing device. It places the maturity date in a window between the one-year and two-year standard buckets, so the bank can pay a slightly different rate there without repricing its whole deposit book. From the depositor's side it behaves like any other cumulative or payout FD: you choose whether interest is paid out periodically or compounded and paid at maturity.

Why banks launch special-tenor deposits

Banks in India set their own deposit rates within the RBI's broad framework. When a bank needs to raise funds for a particular period, or wants to attract fresh money instead of paying more on all its existing deposits, it can offer a bump on a narrow tenor. A special scheme also creates a news hook and a reason for customers to visit.

This matters for how you read the headline. A higher rate on a single tenor does not signal that the bank, or the market, is moving rates in one direction. It signals that the bank wants deposits maturing around that date. Some special schemes are open for a limited window, some carry a ceiling on the amount per depositor, and some are restricted to fresh deposits or to certain customer categories. That is why the maximum-amount detail in the report is worth reading closely.

What the headline does not tell you

The reporting flags the rate and the investment limit, but a saver needs more than that. Before booking, confirm the following directly on the bank's website, in the branch or in the app:

1. The exact interest rate for your category, whether general public, senior citizen or super senior citizen.
2. The minimum and maximum deposit amount, and whether the cap applies per deposit or per customer.
3. Whether the scheme is open for a limited period.
4. Whether interest is compounded quarterly and whether payout options are monthly, quarterly or at maturity.
5. The premature withdrawal rules and the penalty.
6. Whether the scheme allows loans against the deposit.

Do not rely on a third-party summary of these points, including this one. Rates change, and the branch or official website is the only authoritative source on the day you book.

Worked example: what ₹1 lakh could earn over 666 days

We do not have the scheme's rate from the headline, so the table below uses illustrative rates only. They are not PNB's rates. Calculations assume interest compounded quarterly on a cumulative deposit and a tenor of 666 days, which is about 7.3 quarters. Figures are rounded.

Illustrative annual rate	Deposit	Approximate maturity value	Approximate interest earned
6.5%	₹1,00,000	₹1,12,485	₹12,485
7.0%	₹1,00,000	₹1,13,499	₹13,499
7.5%	₹1,00,000	₹1,14,520	₹14,520

Each half-percentage-point difference in the rate is worth about ₹1,000 per ₹1 lakh over the term. On ₹10 lakh, that is roughly ₹10,000. This is the arithmetic to apply once you have the actual rate: multiply the gap between the special scheme and the regular slab by your deposit and by about 1.8 years.

If the scheme has a per-depositor cap below your planned amount, the balance has to go somewhere else. Compare that alternative on our interest rate tables so the capped portion earns a comparable return.

Tax, TDS and deposit insurance

FD interest is added to your income and taxed at your slab rate. A bank deducts TDS at 10% when interest paid or credited at that bank in a financial year exceeds the threshold, which is ₹50,000 for most depositors and ₹1,00,000 for senior citizens under the current rules. Cumulative deposits count interest as accruing each year, so a large deposit can trigger TDS even though you receive nothing until maturity.

If your total income is below the taxable limit, you can submit Form 15G, or Form 15H if you are a senior citizen, to avoid TDS. If your income is taxable, TDS is only an advance payment, and the final liability is settled when you file your return.

On safety, DICGC insurance covers up to ₹5 lakh per depositor per bank, combining principal and interest across all your deposits in that bank. Public sector banks carry strong balance sheets, but the insurance cap is the mechanical protection, and it is the reason to spread very large sums across banks.

Who should consider it and who should not

A 666-day deposit suits people with money they will not need for about two years and who want a known return. Examples include retirees building a predictable income ladder, or a family setting aside funds for a planned expense two years away.

It is a weaker fit if:

• you may need the money within a year, since premature closure usually carries a penalty on the rate;
• you are in a high tax bracket and could do better with tax-efficient debt options after tax;
• the cap is well below the amount you want to park, making the scheme only a partial solution;
• the rate is barely above the bank's regular two-year deposit.

If you are also weighing borrowing costs against saving, our EMI calculator helps you see whether paying down a loan beats earning a fixed deposit rate. A loan costing more than the deposit yields is usually the first thing to clear.

Checklist before you book

1. Note the rate published for your category on the day, and screenshot or save the deposit advice.
2. Compare it against the bank's regular 1-year and 2-year rates and one other bank.
3. Calculate the interest gap in rupees, not percentages.
4. Confirm the maximum amount and plan the balance elsewhere.
5. Choose cumulative or payout according to when you need cash flow.
6. Add a nominee and submit Form 15G or 15H if eligible.
7. Set a calendar reminder a week before maturity, and check the auto-renewal instruction.

Common mistakes with special-tenor FDs

The first mistake is choosing the scheme because of the tenor name without comparing the actual rate. The second is ignoring the ceiling and discovering at the branch that only part of the intended amount qualifies. The third is forgetting that auto-renewal can roll the deposit into whatever rate applies on the maturity date, which may be lower.

Another frequent error is putting emergency money into a locked deposit. Keep three to six months of expenses in a savings account or liquid option, and lock only the surplus. Finally, many savers overlook that all deposits in one bank share the same ₹5 lakh insurance limit.

For more coverage of deposit and lending developments, see the BankCreds news hub.

Frequently asked questions

What is a 666-day FD?

It is a fixed deposit with a special maturity of 666 days, a little under two years. Banks use such odd tenors to offer a distinct rate for a specific window, separate from their standard one-year and two-year deposits.

What is the maximum amount I can invest in the PNB 666-day scheme?

According to India TV News, the maximum investment amount is part of the coverage, but the headline alone does not give the figure. Check the bank's website or your branch for the current ceiling and whether it applies per deposit or per customer.

Is interest on a 666-day FD taxable?

Yes. The interest is added to your income and taxed at your slab rate. The bank deducts TDS once interest at that bank crosses the annual threshold, unless you have submitted Form 15G or 15H and are eligible.

Can I withdraw a 666-day FD before maturity?

Usually yes, but banks typically charge a penalty that reduces the rate applied, and some special schemes have their own conditions. Read the premature withdrawal terms before booking, especially if you may need the money early.