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In the late 1940s and early 1950s, both Abbott and Costello found themselves under scrutiny from the IRS for tax-related issues. Financial troubles loomed over them as their box office performances began to wane. By the mid-1950s, their films were no longer performing well, leading Universal Pictures to decline renewing their movie contract. In 1955, this culminated in the dissolution of their partnership, though they maintained a cordial relationship.
Post the partnership, Costello attempted to forge a solo career, which included performances in Las Vegas and guest appearances on television. However, his health began to decline.