New accounts show accumulated profits jumped at her KT Sports Ltd firm by over €300,000 last year, going from €642,961 to €946,892.
The new filings, lodged with the Companies Office, show the 28 year old is boxing clever, after her 2012 London Olympics triumph, with her cash pile jumping by over €200,000, going from €483,385 to €686,012. In addition, the firm was owed €358,870 by debtors.
The accounts are for the first full 12-month period after her Olympic triumph, with profits increasing by €303,931.
The profit last year represents a 67% increase on the €180,996 recorded in 2013.
The firm recorded profits of €377,620 in 2012, and €84,300 in 2011.
Mark Devlin, of Devlin Sports, is Katie’s manager and has helped guide the Bray native’s career over the past five years.
The firm’s fortunes have been boosted by deals with KPMG, Toyota, Lucozade, Aramark and Adidas.
Taylor has a deal with Toyota that will last until 2016, and has had a contract with the car-maker since 2010.
The figures show the firm owed corporation tax of €47,899 at the end of June 30.
The boxer is the sole shareholder of KT Sports, which was founded in 2009, three years after she won her first gold in the European amateur championships in Poland.
The first set of available accounts, covering April 2009 to June 2010, show it made a profit of just €678 that year.
Taylor is the reigning Irish, European, World and Olympic champion at 60kg.
She also does a lot of charity work and is associated with Barnardos, Zest4Kids, Bray Lakers and Wicklow Hospice Foundation.