Create UX Researcher Invoice in LKR →

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Sri Lanka Tax Information

18% VAT

VAT is 18%. Registration required above LKR 80 million quarterly.

UX Researcher Services to Invoice

  • User interviews ($150-300/session)
  • Usability testing (5-8 participants)
  • Survey design & analysis
  • Persona development
  • Customer journey mapping
  • Competitive UX audit
  • Research synthesis reports
  • Stakeholder workshops

Invoice Requirements in Sri Lanka

VAT number
Business registration
Client details
VAT (18%)
Total in LKR

Payment Terms

50% before research begins to cover recruitment costs, 50% on delivery of final report. Participant incentives billed at cost plus 15% handling fee.

Cash14 days30 daysCredit

Payment Methods in Sri Lanka

Bank TransferFriMiCredit CardCash

UX Researcher Invoice Tips

  • List number of participants tested separately
  • Include recruitment and incentive costs as line items
  • Specify research methodology used (qual vs quant)
  • Attach executive summary with invoice
  • Note deliverable formats (Figma, PDF, Notion)

Frequently Asked Questions

What tax rate applies to ux researcher invoices in Sri Lanka?

Sri Lanka has 18% VAT. VAT is 18%. Registration required above LKR 80 million quarterly.

What payment methods are common for ux researchers in Sri Lanka?

Common payment methods in Sri Lanka include: Bank Transfer, FriMi, Credit Card, Cash. 50% before research begins to cover recruitment costs, 50% on delivery of final report. Participant incentives billed at cost plus 15% handling fee.

What should ux researcher invoices include in Sri Lanka?

Your invoice should include: VAT number, Business registration, Client details, VAT (18%). For ux researcher services specifically, also include: User interviews ($150-300/session), Usability testing (5-8 participants), Survey design & analysis.

How should UX researchers price their services?

Most UX researchers charge $100-250/hour or $1,500-5,000 per usability study (5-8 participants). Enterprise research projects with multiple methods typically range $10,000-50,000. Consider your experience level, market rate, and whether you're providing recruitment services.

Should participant incentives be included in the invoice?

Yes, always list participant incentives as a separate line item. Typical incentives are $50-150 per participant for 60-minute sessions. Bill these at cost plus a 10-15% handling fee to cover your time coordinating payments and scheduling.

What is Sri Lanka's VAT rate?

18% on most goods and services.