| 1983 | Accounting Technicians Ireland is established. It is originally called The Institute of Accounting Technicians in Ireland (IATI) was set up by representatives of the Institute of Chartered Accountants in Ireland (ICAI) and the Irish Institute of Accounting Technicians (IIAT). IATI shares premises with ICAI, shortly thereafter moves to Pembroke Road. Noel Stewart is appointed IATI Chairman, a post which he will hold for five years |
| 1985 | IATI holds its very first graduation ceremony of new members. |
| 1988 | Gregory Orr is appointed IATI Chairman, a post which he will hold for three years. |
| 1991 | Ray Gordon is appointed IATI Chairman, and goes on to become the longest serving IATI Chairman, holding the position for seven years. |
| 1994 | IATI is granted Charitable Status by the Revenue Commissioners, on the basis of its educational work. |
| 1996 | IATI changes its constitution at AGM, to ensure that members throughout the country are fairly represented on the Board of Management. At least one director must be elected from Ulster and one from outside Leinster. A limit is also put on the length that directors may serve on the board. |
| 1997 | Ben Lynch retires as IATI Secretary, having filled that position for 15 years. |
| 1998 | Des Foley is appointed IATI Chairman, the first elected IATI member to be appointed to the position. |
| 1999 | Angela Paisley becomes the first woman to be appointed IATI Chairman. |
| 2000 | IATI’s job placement service is registered as a limited company and begins trading independently of IATI under the name IATI Placement Service Limited. |
| 2002 | For the first time, IATI employs its own staff which were previously seconded from ICAI. Gay Sheehan is appointed as the Institute’s first Chief Executive. |
| 2002 | IATI changes its constitution at AGM, to allow members to offer bookkeeping and non-regulated services to the public |
| 2005 | IATI moves to new premises in Pembroke Road, Dublin 4. IATI embarks upon a Strategic Review, which identifies a number of key strategies which will enable it to grow the organisation. |
| 2006 | IATI Placement Service Limited adopts the trading name IATI Recruitment. IATI successfully applies for ISO 9001:2000 accreditation - the first accounting body of its kind in Ireland to gain this distinction. |
| 2007 | IATI changes its constitution at AGM, to provide for a Disciplinary Process, to be applied in cases of complaints against IATI members. |
| 2007/2008 | The Director of Education, Director of Marketing and IT Project Manager join the CEO to form a senior management team. The first phase of the new syllabus and self-production of manuals is launched. |
| 2008 | IATI moves to temporary premises in Burlington Road, Dublin 4. IATI celebrates its 25th anniversary and surpasses 5,000 members for the first time. |
| 2009 | IATI changes its name to become Accounting Technicians Ireland and is formally launched by the Minister of State for Trade & Commerce, Billy Kelleher TD on 24th June 2009. |