# Keystone Tax Advisory Firm # https://keystoneta.com > Keystone Tax Advisory Firm provides strategic tax planning, structured bookkeeping, and compliance-driven advisory services for individuals and businesses in Aurora, Colorado and nationwide. ## About Us Keystone Tax Advisory Firm, LLC is a tax and bookkeeping firm based in Aurora, Colorado. We serve individuals and small businesses with: - Individual and business tax preparation - Multi-state tax filings - Monthly bookkeeping and financial statements - Year-round tax planning and advisory - IRS representation and tax resolution - Business formation and S-Corp elections ## Contact Information - **Phone**: (943) 245-1042 - **Email**: hello@keystoneta.com - **Address**: 6105 S. Main Street, Suite 200, Aurora, Colorado 80016 - **Website**: https://keystoneta.com ## Key Pages - Home: https://keystoneta.com/ - Services: https://keystoneta.com/services - About: https://keystoneta.com/about - FAQ: https://keystoneta.com/faq - Contact: https://keystoneta.com/contact - Book Consultation: https://keystoneta.com/book ## Services Offered ### Tax Services - Individual tax preparation (W-2, 1099, investments, deductions) - Business tax preparation (LLCs, S-Corps, partnerships, corporations) - Multi-state tax filings - Tax planning and strategy - IRS representation and audit support - Amended returns and back filings ### Bookkeeping Services - Monthly bookkeeping and reconciliation - Catch-up and cleanup bookkeeping - Financial statement preparation (P&L, Balance Sheet) - QuickBooks Online setup and support - Payroll coordination - Sales tax management ### Advisory Services - Business structure guidance (LLC, S-Corp, etc.) - Estimated tax planning - Cash flow analysis - Year-round tax strategy - Financial literacy guidance ## Credentials - IRS Enrolled Agent - 25+ years of experience - 500+ clients served ## Legal - Keystone Tax Advisory Firm is not a CPA firm - We do not provide audit, review, or attestation services - Tax services provided by federally authorized tax practitioners - Keystone Tax Advisory Firm, LLC is a subsidiary of Grace & Stone Holdings, LLC ## Restricted Areas The following areas are private and should not be indexed or analyzed: - /portal - Client portal (requires authentication) - /admin - Staff portal (requires authentication) - /onboarding - Client onboarding forms - /auth - Authentication pages