RD Calculator: Know Your Exact RD Maturity Amount
By LegalDev India Tax Team
RD Calculator: Calculate Recurring Deposit Maturity Amount and Interest Online
An RD calculator works out your recurring deposit's maturity value by compounding quarterly interest on every monthly instalment you pay in. Deposit ₹5,000 a month for 5 years at 7% pa, and the standard RD formula puts your maturity value near ₹3,59,680, roughly ₹59,680 in interest on ₹3,00,000 invested.
You don't have a lump sum sitting around. You have a salary, or an allowance, or a bit of pocket money left over each month, and you want to know what it actually turns into if you keep putting some of it away. That's a different question from what an FD calculator answers, and most pages online don't treat it that way. This page does, with the real formula, three worked examples, and the RD vs FD question most people are quietly trying to settle.
What Is an RD Calculator?
An RD calculator takes your monthly deposit amount, the interest rate and the tenure, then tells you two things: how much you'll have put in by the end, and how much interest gets added on top. Simple idea. The only reason it needs a calculator at all is that each month's deposit sits in the account for a different length of time, so each one earns a different amount of interest by the time the account matures.
Think of your first instalment sitting there for the entire tenure, earning interest the whole way through, while your last instalment barely earns anything before maturity. The formula accounts for all of that at once, which is far more tedious to do by hand than it sounds.
How Does an RD Calculator Work?
You enter the monthly amount, the rate and the tenure, and the calculator applies quarterly compounding, the standard across nearly every Indian bank's RD product. It runs the maturity formula across every instalment simultaneously rather than calculating each one separately, which is the only practical way to get an accurate number without a spreadsheet.
Some calculators let you also enter a specific compounding frequency, though in practice almost no Indian bank deviates from quarterly for RDs. Worth double-checking your bank's terms if you're using a generic tool, just so your numbers don't drift from reality.
Who Should Use an RD Calculator?
Salaried individuals who want to see where a fixed monthly saving habit actually lands in a year or two
Students and early-career earners building their first real savings discipline without a lump sum to deposit
Small savers setting aside money for a goal with a known date: a trip, a gadget, a course fee
Anyone comparing a recurring deposit against simply saving the same amount in a savings account, where the rate is usually lower
Parents or guardians setting up small, regular deposits toward a child's near-term expenses
How to Use the RD Calculator
Three inputs, three outputs. Get the inputs right and the rest follows.
RD Calculator Inputs
| Input | What to Enter | Why It Matters |
|---|
| Monthly RD amount | The fixed sum you'll deposit every month | This is your principal input, consistent every month by design |
| Annual interest rate | Your bank's current RD rate, as % per annum | RD rates run roughly 5-8% across banks as of October 2026, so check your specific bank rather than assuming a number |
| Tenure | How long the RD will run, typically 6 months to 10 years | Most banks won't let you change the amount mid-tenure, so pick a number you can actually sustain |
| Compounding frequency | Quarterly, in almost every Indian bank's case | Changing this assumption without reason will throw off the result |
RD Calculator Results
Three numbers come out the other end:
- Total invested amount - monthly deposit multiplied by the number of months
- Estimated interest earned - maturity value minus total invested
- Maturity value - what you actually receive when the RD matures
Step-by-Step Example
Say you open a ₹3,000 monthly RD for 2 years (24 months, 8 quarters) at 7% pa.
1
Quarterly rate: i = 7% ÷ 4 = 0.0175
2
Number of quarters: n = 24 ÷ 3 = 8
3
Formula: M = 3,000 × [(1.0175)^8 − 1] / [1 − (1.0175)^(−1/3)]
4
(1.0175)^8 ≈ 1.148882, and the denominator works out to roughly 0.005766
5
Maturity ≈ 3,000 × (0.148882 / 0.005766) ≈ ₹77,460. Total invested: ₹72,000. Interest earned ≈ ₹5,460.
A calculator simply performs steps 1 through 5 instantaneously, for whatever amount you throw at it.
RD Calculator Example: ₹5,000 Monthly RD
All three examples below use the same ₹5,000 monthly deposit and the same 7% rate, so tenure is the only thing changing. That makes the effect of time, and of compounding over more quarters, easy to see in isolation.
Example 1: 1-Year RD at 7% Interest
12 months, 4 quarters, i = 0.0175. Maturity value works out to roughly ₹62,310. Total invested: ₹60,000. Interest earned: roughly ₹2,310. Modest, because there simply isn't much time for compounding to do its work over a single year.
Example 2: 3-Year RD at 7% Interest
36 months, 12 quarters. Maturity value comes to roughly ₹2,00,680. Total invested: ₹1,80,000. Interest earned: roughly ₹20,680, nearly nine times the one-year figure, even though the deposit amount and rate haven't changed at all.
Example 3: 5-Year RD at 7% Interest
60 months, 20 quarters. Maturity value comes to roughly ₹3,59,680. Total invested: ₹3,00,000. Interest earned: roughly ₹59,680. Notice how disproportionately the interest grows relative to tenure. That's compounding doing exactly what it's supposed to, given enough time to work.
These figures use the standard formula above and are rounded for clarity. Actual bank calculators may differ by a small amount depending on exact day-count conventions, so treat these as planning estimates rather than a quote from your bank.
RD Maturity Table: Monthly Deposit, Tenure and Interest
One consistent assumption runs through this table: 7% pa, quarterly compounding, standard RD formula. Swap in your bank's actual rate for a precise number.
₹1,000 Monthly RD Returns
| Tenure | Total Invested | Maturity Value | Interest Earned |
|---|
| 1 year | ₹12,000 | ₹12,462 | ₹462 |
| 3 years | ₹36,000 | ₹40,136 | ₹4,136 |
| 5 years | ₹60,000 | ₹71,936 | ₹11,936 |
₹5,000 Monthly RD Returns
| Tenure | Total Invested | Maturity Value | Interest Earned |
|---|
| 1 year | ₹60,000 | ₹62,310 | ₹2,310 |
| 3 years | ₹1,80,000 | ₹2,00,680 | ₹20,680 |
| 5 years | ₹3,00,000 | ₹3,59,680 | ₹59,680 |
₹10,000 Monthly RD Returns
| Tenure | Total Invested | Maturity Value | Interest Earned |
|---|
| 1 year | ₹1,20,000 | ₹1,24,620 | ₹4,620 |
| 3 years | ₹3,60,000 | ₹4,01,360 | ₹41,360 |
| 5 years | ₹6,00,000 | ₹7,19,360 | ₹1,19,360 |
A small but useful pattern: double the monthly deposit and every number in that row doubles too, because the formula scales linearly with P. Handy for quickly estimating what, say, a ₹7,500 monthly RD would return, without running the formula again from scratch.
RD vs FD: Which Is Better?
Key Differences Between RD and FD
| Factor | RD | FD |
|---|
| Deposit style | Fixed amount every month | One lump sum upfront |
| Flexibility | Needs ongoing monthly commitment | No ongoing commitment after opening |
| Suitability | Building savings from income | Deploying savings you already have |
| Return pattern | Each instalment earns interest for a different length of time | The full amount earns interest for the entire tenure |
| Minimum entry | Often lower per month (₹100-₹1,000 depending on bank) | Usually a higher one-time minimum |
When Should You Choose RD?
If you're earning a regular income and don't yet have a lump sum worth locking away, an RD builds one for you while paying FD-like interest along the way. It also forces a savings habit in a way that a savings account, where the money is one click away from being spent, simply doesn't.
When Should You Choose FD?
If you already have a lump sum sitting in a savings account earning next to nothing, an FD puts the entire amount to work immediately, rather than having it trickle in over months like an RD. For a sum you already have, an FD at the same rate will always out-earn an RD built up to the same total, because the full principal compounds from day one.
Benefits of Using an RD Calculator
Plan monthly savings
Seeing the actual maturity number before committing tells you whether a given monthly amount is realistic for your budget, or whether you need to dial it down to something you can sustain for the full tenure without missing instalments.
Set short-term financial goals
Working backward from a target amount, say a ₹50,000 laptop fund in 18 months, a calculator tells you roughly what monthly deposit gets you there, instead of guessing and hoping.
Compare different RD tenures and rates
Running the same monthly amount across a 1-year, 3-year and 5-year tenure in a few minutes shows you exactly how much extra time compounds into, which is the clearest way to decide whether locking in for longer is actually worth it for your goal.
Factors That Affect RD Returns
Monthly deposit amount
Obvious on its face, but worth remembering that the formula scales linearly, so doubling your monthly deposit exactly doubles both your total invested and your interest earned at the same rate and tenure.
Interest rate
RD rates currently range roughly 5% to 8% across banks depending on tenure, with small finance banks often sitting at the higher end of that range. A one percentage point difference compounds into real money over three or five years.
Tenure
Longer tenures mean more quarters of compounding, which is why the interest earned grows faster than the tenure itself, as the three worked examples above show clearly.
Compounding frequency
Nearly universal quarterly compounding for RDs in India means this factor rarely varies in practice, unlike FDs where you'll occasionally find annual or half-yearly options at smaller NBFCs.
Taxation on RD Interest
Is RD Interest Taxable?
Yes. RD interest is taxed exactly like FD interest, as "Income from Other Sources", added to your total income and taxed at your slab rate. An RD is not a tax-saving instrument, and treating it as tax-free simply because it's a bank product is a common and costly misunderstanding.
TDS on RD Interest
Banks apply the same TDS thresholds to RD interest as they do to FD interest under Section 194A: ₹50,000 a year for depositors under 60, and ₹1,00,000 for senior citizens, for FY 2025-26 (effective 1 April 2025, per Budget 2025). Crucially, these thresholds apply per bank across all your interest-bearing deposits at that bank, not per account, so your RD interest and FD interest at the same bank get added together when checking whether you've crossed the line.
Form 15G (under 60) or Form 15H (60 and above) work the same way here as they do for FD interest, stopping TDS at source if your actual final tax liability for the year will be nil.
How to Check RD Interest in Form 26AS
Form 26AS is your tax credit statement, available through the Income Tax Department's e-filing portal, and it shows every TDS deduction made against your PAN during the year, bank-reported RD interest included. Checking it once a year, ideally before filing your return, lets you confirm the bank actually reported the right interest figure and deposited the TDS it deducted.
A mismatch between what your bank's RD statement shows and what Form 26AS shows is worth raising with the bank directly, since it can affect the TDS credit you're entitled to claim.
Common RD Calculator Mistakes to Avoid
Ignoring compounding frequency
Almost every Indian bank compounds RD interest quarterly, but a generic international calculator might default to monthly or annual compounding without telling you. Confirm the assumption before trusting the output.
Ignoring tax on interest
The maturity figure a calculator shows is gross. If your total interest across RD and FD at that bank crosses the TDS threshold, what actually lands in your account at maturity will be less than the calculator's number.
Comparing RDs without tenure matching
A 1-year RD rate and a 5-year RD rate aren't interchangeable, because banks often price them differently depending on where they expect interest rates to head. Compare the same tenure bracket across banks before deciding where to open the account.
Frequently Asked Questions
A tool that works out your recurring deposit's maturity value, based on your monthly deposit, the interest rate and the tenure, using quarterly compounding.
Through a formula that compounds quarterly interest across every monthly instalment, accounting for the fact that your first deposit earns interest for the whole tenure while your last deposit barely earns anything before maturity.
M = P × [(1 + i)^n − 1] / [1 − (1 + i)^(−1/3)], where P is your monthly deposit, i is the quarterly rate, and n is the number of quarters in the tenure.
At 7% pa, roughly ₹3,59,680 on ₹3,00,000 invested, about ₹59,680 in interest, before any TDS.
Yes, for almost every bank in India. A few NBFCs or small finance banks may structure things slightly differently, so it's worth confirming with your specific institution.
Depends entirely on what you're starting with. Already have a lump sum? FD earns more on it. Building one up from monthly income? RD is the only realistic way to do that while earning FD-like rates.
Yes, fully, at your income-tax slab rate, exactly like FD interest, regardless of whether TDS was deducted.
Usually yes, subject to a penalty, commonly in the range of 0.5% to 1% on the applicable rate, plus interest recalculated at whatever rate applied for the period actually held rather than the rate originally booked.
Most banks charge a penalty for each missed instalment, often calculated per hundred rupees of the monthly amount for every month of delay, and consistently missing several months can lead to the account being closed before maturity.
Typically no. For a standard RD, the monthly amount is fixed when you open the account. Some banks now offer flexible RD variants that allow variable monthly deposits within a set range, worth asking about if you expect your savings capacity to grow.
Varies by bank, anywhere from around ₹100 to ₹1,000 a month based on current bank practice, so check your specific bank's minimum before assuming a figure.
Accurate for planning purposes, using the standard formula your bank likely follows, but actual maturity values can differ by a small amount due to exact day-count conventions and instalment-date handling that vary slightly bank to bank.