Private banking in Sri Lanka is offered by commercial banks to high‑net‑worth individuals (HNWIs) and families. Exact eligibility and thresholds vary by bank, but the common criteria and requirements are:

Core financial thresholds

• Minimum investible assets / account balance (or assets under management, AUM): typically required in the range of LKR ~5–50 million (or equivalent in foreign currency). Some banks set fixed LKR thresholds, others accept a USD equivalent (common lower bound ≈ USD 25,000–250,000 depending on the bank and service level).
• Minimum monthly income or demonstrable wealth may be required for some relationship tiers.

Customer profile and status

• Age: legal adult (18+); some banks have special arrangements for minors under guardianship.
• Residency: residents and non‑residents can often qualify, but documentation and product availability vary by residency and nationality.
• Profession / source of wealth: established business owners, senior executives, professionals, retired HNWIs, and families with inherited wealth are typical private‑bank clients.

Know‑Your‑Customer (KYC) and compliance

• Full KYC documentation: valid national ID or passport, proof of address (utility bill, bank statement), tax identification number.
• Proof of source of funds / wealth (salary slips, business ownership documents, sale/purchase contracts, inheritance paperwork, investment statements).
• Anti‑money‑laundering checks and tax compliance declarations (banks increasingly require FATCA/CRS self‑certification and may require tax residency evidence).

Relationship / referrals

• Some banks accept direct applications; others prefer referrals from existing clients, lawyers, accountants, or professional advisers.
• Relationship managers or private bankers usually evaluate fit and propose a relationship tier and product mix.

Service‑level / product fit

• Willingness to use bank services (wealth management, investment products, credit facilities, concierge, estate planning) — banks typically prefer clients who will place funds/investments with them.
• Appetite for specific products (domestic investments, FX, offshore investments) can influence eligibility.

Documentation commonly requested at onboarding

• Identity (passport / NIC), address proof, recent photographs.
• Proof of income/wealth (salary slips, audited accounts, bank statements, investment statements).
• Business registration documents if wealth derives from a company.
• Tax residency and FATCA/CRS forms.
• References (bank/reference letters) in some cases.

Practical notes

• Thresholds and benefits differ significantly between banks and between “private banking” and lower tiers such as premium or priority banking.
• Some local banks offer multiple private tiers (Silver/Gold/Platinum) with different minimums; international banks operating in Sri Lanka may use USD thresholds and offer cross‑border services.
• Credit history and relationship history with the bank (existing deposits, loans) can improve access and terms.

If you want specific numeric thresholds or product lists for particular banks (e.g., Commercial Bank, Sampath/People’s Bank branches’ private arms, Hatton National Bank, Sampath, DFCC, HSBC, Standard Chartered in Sri Lanka), I can check current publicly stated minimums and services for those banks.