Tax Preparation & Filing

Accurate Filing. Clear Guidance. Year-Round Support.

Tax preparation should be more than entering numbers once a year. For individuals and families with growing complexity, it’s about accuracy, follow-through, and having a professional who understands how today’s decisions affect future outcomes.

At Langdon & Company LLP, we provide individual tax preparation services that are thorough, responsive, and coordinated with your broader financial picture.

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What We Offer

Section Overview

Who We Serve

Our individual tax clients include:

  • Professionals and executives
  • Business owners, partners, and pass-through entity owners
  • High-net-worth individuals and families
  • Individuals with investment income or real estate holdings
  • Trust and estate beneficiaries
  • Families navigating major financial or life transitions

Many clients begin with tax preparation and later expand into planning, estate work, or family office support as their needs evolve.

What’s Included in Our Tax Preparation Services

We prepare and file a wide range of federal and state returns, including:

  • Individual income tax returns
  • Multi-state filings
  • Trust and estate income tax returns
  • Gift tax returns
  • Prior-year and amended returns
  • Catch-up filings for missed years

In addition, we routinely assist with the work surrounding filing, not just the return itself.

Extensions, Estimates, and Payments

  • Filing extensions when additional time is needed
  • Calculation and setup of quarterly estimated tax payments
  • Adjustments to estimates as income or circumstances change
  • Coordination of payment timing to avoid penalties and underpayment issues

Specialized Support for Business Owners

For individuals with ownership in pass-through entities, tax preparation often involves additional layers of complexity. We routinely assist with:

  • Review and coordination of K-1s from partnerships, LLCs, and S corporations
  • Pass-Through Entity Tax (PTET) elections and compliance coordination
  • Alignment of individual returns with business filings
  • Estimated tax planning tied to business cash flow
  • Multi-entity and multi-state considerations

Our goal is to ensure individual and business filings work together, not against each other.

More Than Filing Forms

Our approach emphasizes understanding, not just compliance. We take the time to:

  • Review income sources, deductions, credits, and carryforwards
  • Identify inconsistencies or exposure areas
  • Explain outcomes in plain language
  • Flag planning opportunities for future years
  • Coordinate with your financial advisor or attorney when appropriate

If something looks unusual, we address it before it becomes a problem.

IRS & State Correspondence Support

If you receive a notice related to a return we prepared, we assist with:

  • Interpreting the notice
  • Preparing responses and documentation
  • Communicating with taxing authorities
  • Resolving discrepancies or penalties

You are not left to navigate tax authorities on your own.

How This Fits With Our Other Individual Services

Tax preparation often serves as the foundation for broader work, including:

  • Tax Planning & Consulting for proactive strategy
  • Estate Planning & Administration for wealth transfer and legacy matters
  • Family Office Administration for ongoing coordination and oversight

We help clients move between these services smoothly as needs change.

Why Langdon?

Broad Expertise, Industry Focus

We serve a diverse range of clients—including nonprofits, healthcare providers, and privately held businesses. Our team blends experience and ongoing training to stay ahead of reporting standards, regulations, and industry trends.

Partner Involvement, Start to Finish

Your engagement is led by senior professionals who stay involved—not just during fieldwork, but year-round. We’re hands-on, responsive, and committed to delivering a smooth, efficient process without passing you off to junior staff.

Practical Advice, Real Impact

Our goal is not just to meet requirements but to help you make smarter decisions. We share benchmarking insights, recommend process, and help you prepare for what’s next. From cost reporting to tax strategies, we focus on solving real problems—not selling services.

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