Mary Gallagher CPA, LLC

High quality tax preparation, tax strategy & planning, and business accounting services for non-profits, small businesses and individuals

Accountant in Denver, CO (show on map)

4.8

★★★★★

8 reviews

High quality tax preparation, tax strategy & planning, and business accounting services for non-profits, small businesses and individuals

Call (303) 907-4621

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About

Mary Gallagher CPA, LLC offers high-quality tax preparation, tax strategy, and business accounting services for non-profits, small businesses, and individuals. Services include remote tax & accounting solutions with SmartVault for secure document uploads and DocuSign for online signing.

Payment options include credit cards and ACH transfers.

Remote tax & accounting services

SmartVault secure portal

DocuSign eSigning

Credit card and ACH payment options

Services

Tax Preparation

We prepare income tax returns for your business, trust, or nonprofit; and integrate them with your individual income tax returns as appropriate. We ensure that you pay as little tax as possible while ensuring that you are in compliance with all tax laws and regulations.

Tax Strategy and Planning

We review tax strategies and help you plan for the future - whether as part of your annual tax return preparation, or whenever there is change in your circumstances that warrants a review of your tax strategy or plan. We also provide choice of entity consulting for your business.

Business Accounting Services

Using QuickBooks Online, we provide monthly accounting services for your small business. Whether, you choose to have us handle everything, simply review and reconcile your work, or something in between, your books will be accurate and up-to-date so that you can make informed business decisions.

Credentials & Certifications

CPA (#14606)

Since 1993

Master’s in Taxation

Since Graduated from Denver University

Master’s in Accounting

Since Graduated from University of Denver

Bachelor’s in Business Administration

Since Graduated from Hofstra University

Reviews

Rating

4.8

★★★★★

Reviews

Frequently Asked Questions

What is new for 2025? +

One Big Beautiful Bill highlights, deduction for tip income up to $25,000 a year, no tax on overtime wages, SALT deduction cap increased to $40,000, charitable contributions deduction threshold increased, additional $6,000 deduction for qualifying seniors, some green energy tax credits repealed, certain TJCA tax rates now permanent, child tax credit increased to $2,200 per child, standard deduction increased, IRS phaseout of paper refund checks, etc.

What is the due date of my 2025 tax returns? +

April 15, 2026 & extended due date October 15, 2026 for individual income tax returns, March 16, 2026 & extended due date September 15, 2026 for trust tax returns, May 15, 2026 & extended due date November 11, 2026 for partnership tax returns, etc.

Where shall I go to pay my income taxes and estimated tax payments online? +

https://www.irs.gov/payments/direct-pay and https://www.colorado.gov/pacific/tax/income-tax-individual-pay

What is the due date for my quarterly estimated income tax payments for 2026? +

1st quarter = April 15, 2026, 2nd quarter = June 15, 2026, 3rd quarter = September 15, 2026, 4th quarter = January 15, 2027.

What is the due date to make a contribution to my retirement account or health savings account for tax year 2025? +

April 15, 2026 for traditional IRAs, Roth IRAs, HSA’s, SEP IRAs, and solo 401(k)s for sole proprietors. For S-corps or partnerships, the due date is March 16, 2026 (or September 15, 2025 if extended).

How long will it take for me to receive my income tax refund? +

Most refunds are sent within about 10 days after electronic filing. Direct deposit speeds up the process and is safer than paper checks. Status can be checked at IRS refunds and Colorado 'Where’s my refund?' pages.