The answer: divide the promised net amount by one minus the applicable rate
For a non-resident remittance in tax year 2026–27, where the payer has agreed to bear Indian tax and a single effective deduction rate r properly applies, gross income G equals the promised net amount N divided by (1 − r). Tax is G − N. Adding r% to N usually understates the tax because the payer also bears tax on that additional amount. The formula does not determine whether the payment is chargeable or which treaty rate applies.
Current provision and the limits of this calculation
Checked on 24 October 2026. Section 393(10) of the Income-tax Act, 2025 provides the income-increase mechanism for tax borne under an agreement or arrangement, excluding the case referred to in section 392(2)(a). This article addresses non-resident commercial remittances outside that exception. The familiar legacy section number 195A should not be used as the current operative citation for this tax year.
Section 393(2) contains the non-resident payment framework. First settle the income character, chargeability, recipient identity, relevant treaty and evidence, and the applicable deduction provision. A contractual promise to pay tax cannot by itself turn a non-chargeable payment into taxable income. Conversely, a supplier invoice labelled “net” is not a documented conclusion that no Indian tax arises.
Separate the legal rate decision from the arithmetic
Keep a rate memorandum separate from the gross-up worksheet. Record whether the selected effective rate already reflects any applicable surcharge and cess and whether treaty limitations affect those components. A no-PE declaration, by itself, is not a rate certificate for every kind of income. Royalty, service, business-profit and other classifications must be resolved before importing a percentage into the sheet.
The examples below stipulate effective flat rates solely to demonstrate arithmetic. They do not prescribe a rate for any country, treaty, payment class or recipient. If the grossed income changes a surcharge band or engages marginal relief, solve the applicable tax function and retest the band. A fixed-rate shortcut cannot settle that case.
Build a remittance control that survives a contract change
Read the tax clause with the commercial team: who bears withholding, what amount the recipient must actually receive, and whether bank charges are inside that promise? Maintain separate columns for contractual net consideration, tax borne, gross tax base, bank fees and cash paid. A fee charged by the bank is not automatically recipient income or part of the tax base.
For mixed invoices, a separately described reimbursement is not automatically outside tax. Exclude a component only after its legal treatment has been independently established and recorded. Where the agreement promises a fixed total cost rather than a fixed recipient net, calculate the recipient amount from that budget; do not silently change the commercial bargain.
Retain unrounded calculations and reconcile final amounts to the applicable reporting and payment rounding rules. The two-decimal displays below demonstrate mathematical reconciliation, not a statutory requirement to deposit tax in paise. Recheck actual exchange-rate requirements independently; an invoice conversion rate is not automatically the prescribed tax conversion rate.
Worked illustrations
These illustrations use fictional facts and expressly stated assumptions. Amounts are Indian rupees unless a different currency or unit is specified. They are independent examples, not findings about any actual client.
Illustrative example 1: A net promise of ₹9 lakh
Assume an independently established effective flat rate of 10%. G = 900,000 ÷ 0.90 = ₹1,000,000. Tax = ₹100,000 and recipient net = ₹900,000. The tax is 11.1111% of the net promise even though the assumed deduction rate is 10% of gross.
Illustrative example 2: Why adding ten per cent fails
For net ₹1,000,000 at the same stipulated 10%, correct gross is ₹1,111,111.11 and tax ₹111,111.11, displayed to two decimals. Simply setting gross at ₹1,100,000 gives tax ₹110,000 and net ₹990,000: a ₹10,000 shortfall against the promise.
Illustrative example 3: A different established rate
If the net is ₹850,000 and the effective flat rate has separately been established at 15%, G = 850,000 ÷ 0.85 = ₹1,000,000; tax = ₹150,000. Reusing the previous 10% worksheet would be a substantive error, not merely a rounding difference.
Illustrative example 4: Foreign-currency budget bridge
A USD 9,000 net promise at a stipulated 10% gives USD 10,000 gross and USD 1,000 tax equivalent. At an illustrative budgeting rate of ₹90 per USD, these equal ₹810,000 net, ₹900,000 gross and ₹90,000 tax. This rate is a management assumption; determine the legally required conversion separately.
Illustrative example 5: One established non-chargeable component
An invoice contains ₹600,000 net chargeable consideration at a stipulated 10% and a distinct ₹400,000 component independently concluded non-chargeable on documented facts. Gross the first component to ₹666,666.67; tax is ₹66,666.67. Total cash cost before bank charges is ₹1,066,666.67. The description “reimbursement” alone would not justify this separation.
Illustrative example 6: A total-cost ceiling is a different promise
With an approved total consideration-and-tax budget of ₹1,000,000 and a stipulated 10% gross-basis rate, recipient net is ₹900,000 and tax ₹100,000. Promising the supplier ₹1,000,000 net would instead require ₹1,111,111.11, exceeding that budget by ₹111,111.11.
Illustrative example 7: Retaining precision at fifteen per cent
For ₹100,000 net at a stipulated 15%, the unrounded gross is ₹117,647.058823… and tax ₹17,647.058823…. Two-decimal presentation gives ₹117,647.06 less ₹17,647.06 = ₹100,000.00. Keep the unrounded basis and apply the actual statutory/reporting rounding at the relevant stage.
Ten-step verification table
| Step | Verification | Evidence to retain |
|---|---|---|
| 1 | Identify the tax year and operative legislation | Dated applicability memorandum. |
| 2 | Read the tax-bearing clause | Signed agreement and approved commercial interpretation. |
| 3 | Determine income character and chargeability | Invoice, deliverables and legal analysis. |
| 4 | Validate recipient and treaty entitlement where claimed | Residence and other applicable treaty evidence. |
| 5 | Approve the effective deduction rate | Rate memorandum addressing surcharge, cess and exceptions. |
| 6 | Test whether a flat rate remains valid after gross-up | Threshold or piecewise calculation where needed. |
| 7 | Separate components and bank charges | Documented allocation and chargeability conclusions. |
| 8 | Compute gross and tax using retained precision | Formula worksheet with an independent recalculation. |
| 9 | Apply the required conversion and rounding rules | Rate evidence and reporting/payment reconciliation. |
| 10 | Match recipient net, tax payment and total cash | Bank advice, deduction records and ledger reconciliation. |
Sixteen practitioner FAQs
1. Does a net-of-tax clause set the tax rate?
No. It allocates the commercial cost; the legal rate must be established separately.
2. Why is tax greater than ten per cent of the net in the first example?
The stipulated rate applies to gross income, which includes the tax borne by the payer.
3. Which current section should the worksheet identify?
For the stated tax year, identify section 393(10) of the 2025 Act and the applicable payment provision, rather than relying only on a legacy reference.
4. Can the formula prove that a remittance is taxable?
No. Chargeability is an input supported by separate analysis, not a conclusion generated by division.
5. Is a no-PE declaration enough for every payment?
No. Establish the income character and relevant treaty treatment; the declaration is evidence for the issues it actually addresses.
6. Are the example percentages treaty recommendations?
No. They are stipulated effective flat rates for calculation practice.
7. Should surcharge and cess always be added to the example rate?
No. First determine the components legally applicable to the actual payment; avoid both omission and double counting.
8. What if gross-up crosses a rate threshold?
Recalculate under the applicable bands and any relief, then check that the resulting gross satisfies the band used.
9. Can all reimbursements be excluded?
No. A label does not establish non-chargeability. Retain the analysis for each excluded component.
10. Are bank charges automatically part of gross income?
No. Read the contract and determine their character separately before incorporating them.
11. Can a fixed total budget be treated as a net promise?
Only if that is the actual agreement. Otherwise the two commercial terms yield different recipient amounts.
12. Should foreign-currency invoices use the budgeting rate for tax?
Not automatically. Establish the required tax conversion rule independently.
13. Can the recipient receive less because the payer rounded early?
Early rounding can produce an avoidable shortfall. Retain precision and reconcile the contractual net after required rounding.
14. Does gross-up replace remittance reporting?
No. Complete the separately applicable deduction, payment and remittance reporting requirements.
15. What changes if tax is withheld from the agreed gross instead?
The recipient bears that deduction under those assumed terms; there is no additional net guarantee to solve unless the arrangement provides one.
16. What is the best final arithmetic check?
Subtract tax from gross and reconcile that amount to the promised net, then reconcile gross plus separately identified charges to the cash budget.
Conclusion
Approve chargeability and the rate before using the formula. The completed working should reconcile legal assumptions, the recipient’s contractual net and the payer’s entire cash commitment.