Flat commission and tiered commission
A flat commission is one percentage of the sale value, regardless of size. The arithmetic is a single multiplication, and the line on the chart is a straight ray through the origin. Flat rates sit in the simplest kind of agreement: a junior sales role, a referral fee, a brokerage on a one-off deal.
A tiered commission introduces slab boundaries. The idea is to reward volume: the first rupees of the sale earn a small rate; the rupees above a threshold earn a larger one. The slab table lists the boundaries and the rate inside each slab, and the arithmetic depends on which of the two conventions the contract uses.
Incremental slabs and all-on-reached slabs
Incremental is the convention that income-tax slabs use. For a sale of ₹7,00,000 against a three-slab table of 5, 7 and 10 per cent at boundaries ₹1,00,000 and ₹5,00,000, the slice at 5 per cent earns ₹5,000; the slice from ₹1,00,000 to ₹5,00,000 at 7 per cent earns ₹28,000; the slice above ₹5,00,000 at 10 per cent earns ₹20,000. Total commission ₹53,000. Effective rate 7.57 per cent of the sale.
All-on-reached is the convention sometimes written into a sales contract so the agent can quote one number. The highest slab the sale touches sets a single rate on the whole sale value. On the same ₹7,00,000 sale, the 10 per cent slab reached means the whole ₹7,00,000 is commissioned at 10 per cent, giving ₹70,000. Effective rate 10 per cent of the sale.
The gap between the two conventions on the same deal and the same slab table is ₹17,000, more than one month's salary for many sales roles. Settle the convention in the contract, and the line on this page quietly tells you which one you are reading.
Worked example you can check
Settings that match the sample loaded by default. Sale value ₹7,00,000. Slab table: 5 per cent on 0 to ₹1,00,000; 7 per cent on ₹1,00,000 to ₹5,00,000; 10 per cent on ₹5,00,000 upwards.
| Slab | Slice | Rate | Slab commission (incremental) | All-on-reached |
|---|---|---|---|---|
| 0 to 1,00,000 | ₹1,00,000 | 5 per cent | ₹5,000 | - |
| 1,00,000 to 5,00,000 | ₹4,00,000 | 7 per cent | ₹28,000 | - |
| 5,00,000 to sale | ₹2,00,000 | 10 per cent | ₹20,000 | ₹70,000 (on full 7,00,000) |
| Total commission | ₹53,000 | ₹70,000 | ||
| Effective rate on sale | 7.57 per cent | 10 per cent |
With GST at 18 per cent, the incremental ₹53,000 invoice becomes ₹62,540 to the payer. If a 5 per cent TDS is applied by the payer on ₹53,000, the cash reaching the receiver is ₹53,000 plus ₹9,540 GST minus ₹2,650 TDS, which is ₹59,890.
GST and TDS on a commission bill
GST on commission is 18 per cent, under the financial-services rate schedule. It is charged on the commission amount, not on the sale value. The person raising the invoice collects it; it is not kept by the agent. This page keeps GST as a toggle so a reader who is below the GST registration threshold or outside the service net can switch it off.
TDS on commission has a section number and a rate that changes from year to year with the Finance Act, so this page does not hard-code one. The field takes whatever percentage the deducting party will apply this year on this payment. The net receipt is commission plus GST minus TDS; the GST passes through to the government, and the TDS is adjusted against the agent's own tax when the return is filed.
Where this reads in a real ledger
In a seller's books, commission paid is an operating expense: it reduces profit for the period. In the agent's books, commission received is income; after TDS the agent carries a TDS credit that offsets income tax on the same income. GST on the invoice sits as output GST on the agent's return and as input GST (if claimable) on the payer's return.
The arithmetic on this page is the first line of each of those entries. The journal and the GSTR workflow sit beyond the calculator; a Tally course or a diploma in taxation covers that end.
What this calculator leaves out
- Deal-by-deal tracking. This page prints the commission on one sale value; a full sales ledger adds a deal identifier, a date and a customer, and sums commission across months.
- Tapering slabs, where a slab's rate drops rather than rises as volume grows. The arithmetic here applies to a non-decreasing rate table; for decreasing tables flag the rows and read the output with care.
- Clawbacks and retention. Where the contract claws back a commission on returns or cancellations, net it off in your own books after this calculator runs.
- Revenue share, licence fees and royalties. These share the slab-table shape but are paid out of a different line in the agreement.
Who this calculator is meant to help
A small business owner setting a new sales agreement uses the incremental mode to understand the real cost at the volumes the business expects, not the headline number. A sales agent uses the flat mode to check the net cheque after GST and TDS. An accountant preparing a payout runs the tier table over actual sale values and uses the per-slab chart to show the payable that month. A student checks a textbook sum on slab-rate commissions. All four read the same arithmetic.
Frequently asked questions
How is commission calculated on a slab table?
Under the incremental convention, the sale value is sliced at every slab boundary and each slice is multiplied by that slab's rate. Under the all-on-reached convention, the highest slab the sale value touches sets a single rate for the whole sale value. The two numbers can be very different on the same deal.
What GST rate applies on commission?
GST on commission is 18 per cent under the financial-services rate. It is charged on the commission amount, not on the sale value, and the person raising the bill collects it from the payer. A small agent below the GST registration threshold can switch the toggle off.
What rate of TDS does the page use for commission?
None. The TDS rate is set by the Finance Act for the year and the page does not hard-code a figure. Enter the percentage the deducting party will apply on your payment; the calculator subtracts it from the gross commission to show the net receipt.
What is the difference between a slab-rate commission and a flat-rate commission?
A flat-rate commission is a single percentage on the whole sale value, so the line on the chart is a straight ray through the origin. A slab-rate commission has boundaries and a different percentage inside each slab; the line kinks at each boundary. The flat reading is simpler; the slab reading rewards volume.
Is the TDS adjusted against my income tax later?
Yes. TDS deducted on your commission is deposited with the government against your PAN and shows up in Form 26AS and the Annual Information Statement. When you file your income-tax return, the TDS credit is set off against the tax computed on the same income.
Does the page handle a ceiling or cap on total commission?
No. If the contract caps the commission at an absolute figure, apply the cap in your own books after this page's output. The underlying slab arithmetic on this page is uncapped.
How is commission paid on returns and cancellations treated?
That is a clawback, and the contract sets how it is applied: full reversal, pro-rata or retention. This page prints the gross commission on the sale; the netting-off after a return is a separate line in the agent's and the payer's books.
Courses that teach the subject behind the commission calculator
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Diploma in Taxation
An online and offline diploma in taxation, with training in GST, ITR and business accounting.
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