She then made seven voyages as a "regular ship" for the British East India Company (EIC).

She also made at least one voyage carrying immigrants to South Australia, and later regularly traded between Liverpool and Bombay.

She reached the Cape of Good Hope 25 December and St Helena on 27 January 1810; she arrived at Gravesend on 17 April.

[2][c] EIC voyage #1 (1811–1812): Moffat first appears in Lloyd's Register for 1811 with B. Barber, master, J. Timbrell, owner, and as having left London on 20 March 1811 with destination India.

Homeward bound, she reached St Helena on 14 February 1812 and Portsmouth on 25 April; she arrived at The Downs on 10 May.

[4] Moffat was admitted to the Registry of Great Britain on 16 July 1812.=[3] EIC voyage #2 (1813–1814): Captain Simon Lee sailed from Portsmouth on 20 April 1813, bound for Madras and Bombay.

She reached Tristan da Cunha on 13 October and arrived at Whampoa anchorage on 13 February 1819.

Homeward bound, she crossed the Second Bar on 23 March, reached St Helena on 11 July, and arrived at The Downs on 19 September.

[4] EIC voyage #4 (1824–1825): Captain Robert Railston Brown sailed from the Downs on 7 August 1824, bound for China and Quebec.

Homeward bound, she crossed the Second Bar on 10 January 1827, reached St Helena on 18 March, and arrived at Blackwall on 16 May.

EIC voyage #7 (1832–1833): Captain James Cromartie sailed from The Downs on 25 June 1832, bound for China and Halifax.

[5] Convict voyage #1 (1834): Captain James Cromarty sailed from Plymouth on 29 January 1834 and arrived at Hobart Town on 9 May.

[16] Convict voyage #2 (1836): Captain James Bolton sailed from Plymouth on 7 May 1836 and arrived at Sydney on 31 August.

Immigrant voyage (1839): Captain Gilbert sailed from London on 26 August 1839 and arrived at Port Adelaide on 19 December.

Convict voyage #4 (1842): Captain James Gilbert sailed from Portsmouth on 18 August 1842 and arrived at Hobart on 28 November.