Blue Sage Tax & Accounting

Accounting for High-Net-Worth Individuals

High income rarely arrives from one place. Salary, equity compensation, partnership income, rental property, and investment gains each have their own timing and their own state exposure. Blue Sage coordinates the whole picture, keeps estimates accurate through the year, and handles the multi-state and equity issues that create most of the surprises.

What we handle

  • Coordinated federal, state, and city return preparation
  • Equity compensation planning for RSUs, options, and ESPPs
  • Multi-state and residency planning
  • Quarterly estimates that reflect actual income, not last year's
  • Rental property and passive activity tracking
  • Charitable giving and timing strategy

Who this is for

Senior executives, physicians and dentists, attorneys, professional athletes, and entertainers — anyone whose income is large enough and varied enough that the return has become a coordination exercise rather than a data entry one.

Income that arrives in lumps is what causes trouble. A large vest, a bonus, a partnership distribution, or a property sale can each create an estimated tax shortfall that produces a penalty even when the return is filed and paid on time.

Deadlines and rules worth knowing

Key points worth knowing.
Item What applies
Estimated taxes Must reflect actual income through the year. Safe harbour percentages are higher above an income threshold.
Equity compensation The most common source of double taxation, through incorrect cost basis on broker forms
Residency High earners changing states face genuine scrutiny. Documentation of the move matters.
Athletes and entertainers Often owe tax in every state they performed or competed in, apportioned by duty days
Passive losses Rental losses are frequently limited at higher income levels and carry forward instead

How we work

  1. Review what exists

    We read last year’s return and whatever records you have. Most of what needs fixing is visible quickly.

  2. Fixed quote in writing

    Scope and price before anything starts, counting entities, states, and any cleanup needed.

  3. File and maintain

    Returns prepared and filed, notices answered, and a projection before year end.

Questions

Why do I owe a penalty when I paid everything by the deadline?

Income tax is due as income is earned, not in a single payment at filing. If withholding and quarterly estimates fell short during the year, an underpayment charge applies even though the return was filed and paid on time. Large one-off income events are the usual cause.

Do I owe tax in every state I worked in?

If you earned income there, generally yes. For athletes and performers this is routine u2014 income is often apportioned across states by duty days or performance days. Your home state then credits tax paid elsewhere, but the credit is limited and does not always cover the full amount.

Last reviewed 11 September 2026 by Fahadun Nabi, Founder, Blue Sage Tax and Accounting Inc.. General information, not advice for your specific situation.

Related

Talk it through before the deadline, not after.

A free consultation call, no obligation, and a fixed quote if you want to go further.