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6991 East Camelback Rd., Suite D-300, Scottsdale, AZ 85251 (800) 426-6614 info@marksullivanconsulting.com

Mark W. Sullivan, EA has over 25 years of experience in tax controversy resolution.

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U.S. Small Businesses Face Challenges Repaying Delinquent Covid Loans

Mar 132 min read

U.S. Small Businesses Face Challenges Repaying Delinquent Covid Loans

The SBA is pursuing up to $20 billion in delinquent Covid disaster loans, affecting about a million small businesses & nonprofits.

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IRS Ramps Up Employee Retention Credit Audits

Jun 7, 20235 min read

IRS Ramps Up Employee Retention Credit Audits

Beware: ERC audit documentation demands are onerous

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Self-Employed Taxpayers Must Registration With Financial Crimes Enforcement Network (FinCEN)

May 15, 20233 min read

Self-Employed Taxpayers Must Registration With Financial Crimes Enforcement Network (FinCEN)

Self-Employed Taxpayers Must Registration With Financial Crimes Enforcement Network (FinCEN)

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Don't Get Cute! Novel Tax Defenses Won't Work With IRS

Feb 21, 20233 min read

Don't Get Cute! Novel Tax Defenses Won't Work With IRS

Noval tax defenses do not work with the IRS.

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It’s My Accountant’s Fault!

Dec 20, 20223 min read

It’s My Accountant’s Fault!

Warning: Choose your tax preparer wisely "It's my accountant's fault" is not a good defense in a tax audit. Tax season is just around the...

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Team Biden's IRS Comes For Your PayPal And Venmo Payments

Dec 13, 20223 min read

Team Biden's IRS Comes For Your PayPal And Venmo Payments

IRS is coming for your Venmo payments

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Tax Filing Websites Have Been Sending Users’ Information to Facebook in Violation of IRC 7216

Nov 30, 20225 min read

Tax Filing Websites Have Been Sending Users’ Information to Facebook in Violation of IRC 7216

Tax Filing Websites Have Been Sending Users’ Information to Facebook Without Taxpayer Consent

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