Mr.Ooi/Legal/Payment and Billing Terms
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Payment and Billing Terms.

Currencies, invoicing, payment deadlines, late payment, suspension and taxes for every Mr.Ooi service.

Last updated
17 October 2026
Effective
25 October 2026
Version
1.1
Applies to
All countries (country pages add local rules)
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On this page

  1. 1. Currencies
  2. 2. When we invoice
  3. 3. Payment deadline
  4. 4. Late payment
  5. 5. Invoice disputes
  6. 6. Taxes
  7. 7. Price changes
  8. 8. Prepayment

/01 Currencies

India: INR. United States: USD. Malaysia: MYR. Singapore: SGD. Australia: AUD. Other countries: USD unless the proposal states otherwise. Bank charges and currency conversion costs on your side are yours, so we receive the invoiced amount in full.

/02 When we invoice

Service Billing
Paid audit 100% on booking; credited to a sprint signed within 30 days of the readout
One-time project 50% on signing, 50% on delivery (or milestones in the Statement of Work)
90-day sprint 50% on signing, 50% at day 45
Retainer Monthly in advance on the 1st; the first invoice on signing
Add-ons Monthly in advance with the retainer, or as quoted
Third-party costs Paid directly by you, or reimbursed at cost plus a 10% handling fee where we pay on your behalf

Work does not start until the first invoice is paid.

/03 Payment deadline

Invoices are due within 7 days of the invoice date, in full and without set-off or deduction, except tax deducted at source as required by law with the certificate issued on time. Pay only by the methods on the invoice, to an account in the name of the Mr.Ooi entity; see the Payment Safety Notice.

/04 Late payment

  • Interest at 1.5% per month (18% a year), or the highest lawful rate if lower, runs from the due date until payment. In India, where Mr.Ooi is registered as a micro or small enterprise, the MSMED Act 2006 also applies: buyers must pay within the agreed period and never later than 45 days, and delayed payments carry compound interest at three times the RBI bank rate.
  • Reasonable recovery costs, including legal and collection fees, are payable by you.
  • After 14 days overdue, and 3 business days' notice, we may suspend work, access to dashboards and reports, and delivery, without liability. Retainer fees continue during suspension.

/05 Invoice disputes

Tell us at billing@mrooi.com within 7 days of the invoice date, listing the disputed items and reasons. Undisputed amounts must be paid on time. If you do not dispute within 7 days, the invoice is accepted.

/06 Taxes

Prices exclude taxes. We add GST, SST, sales tax or other taxes as the law requires in your country. Country details: India GST and invoicing · Malaysia · Singapore · Australia · United States.

/07 Price changes

Rates may be revised once a year with 30 days' written notice. Fixed-price projects already agreed are not affected.

/08 Prepayment

Paying 12 months of a retainer in advance earns a 10% discount unless the proposal states otherwise. Prepaid fees are not refundable, except as set out in the Guarantee and Refund Policy or required by law.

Related pages

Billing and tax in every country

  • India: GST and Invoicing Information
  • India: Service Delivery Policy
  • India: India Terms Addendum
  • United States: US Terms Addendum
  • Malaysia: Malaysia Terms Addendum
  • Singapore: Singapore Terms and Marketing Addendum
  • Australia: Australia Terms Addendum

Global policies that always apply

  • Master Services Terms
  • Global Privacy Policy
  • Cookie Policy
  • Guarantee and Refund Policy
  • Disclaimer
  • Company Information

Other countries

  • India
  • United States
  • Malaysia
  • Singapore
  • Australia
  • EU and UK