Dollars or rupees at the other end
The question that sets this route apart is whether the money should arrive in Sri Lankan rupees at all. The Central Bank of Sri Lanka lets banks open Personal Foreign Currency Accounts, and its Directions No. 04 of 2021 under the Foreign Exchange Act, No. 12 of 2017 make them available to Sri Lankan nationals, to people of Sri Lankan origin living abroad and to some non-nationals. Foreign currency remittances received from outside Sri Lanka through the banking system can be credited to such an account, and the directions define remittances widely enough to include funds received from exchange companies and houses abroad, though not currency notes. The account can later pay out in rupees in Sri Lanka.
That gives a family two choices. If the provider converts to rupees, the exchange rate is the provider's, and that is what the table above measures against the mid-market rate. If the recipient's bank accepts the dollars into a foreign currency account and converts later, the rate is the bank's on the day it converts, and the table does not cover it. Ask the bank how it treats an incoming transfer before choosing.
Formal channels
The Central Bank has used its own policy to steer remittances into licensed channels. When it added an incentive on workers' remittances in December 2021, it limited it to money sent through licensed banks and other internationally accepted formal channels and converted into rupees, and said it was working with law enforcement to curtail informal transfer channels.
Checking the provider in the US
Before using a service you have not tried, two public records are worth a look. The Conference of State Bank Supervisors runs NMLS Consumer Access, a free service for confirming that a financial services company is authorised in your state, and FinCEN keeps a search of registered money services businesses. Being listed is not an endorsement, but a non-bank provider that appears in neither deserves a question before you send.
Once you have chosen, Regulation E applies. The provider's pre-payment disclosure must give its exchange rate, its fees and taxes, and the rupees to be received, and the receipt must give the date the money will be available in Sri Lanka. You can cancel within 30 minutes of paying if the money has not been collected or deposited, and report an error up to 180 days after the availability date.
How you pay matters too
From 1 January 2026, transfers paid for with cash, a money order, a cashier's check or a similar physical instrument carry a 1% federal excise tax that the provider collects from you, according to the IRS. Under section 4475, funding the transfer from a US bank account or with a US-issued debit or credit card keeps it outside the tax. To test a quote against the mid-market rate, use the currency converter, and for other amounts or routes start with the money transfer comparison.