2026 federal tax planning collection

Choose the tax calculation you actually need.

A plain-English path through income rates, deductions, student loan interest, family credits, taxable Social Security, self-employment tax, payments, and contribution rules—without pretending one small calculator can prepare an entire return.

1. Determine gain before applying a tax rate

Sale proceeds are not gain, and potentially taxable home-sale gain is not the tax. Establish the supported gain first. Then keep ordinary taxable income, eligible long-term gain, credits, additional taxes, withholding, and the final refund or balance due as separate calculations.

2026 Home Sale Capital Gain CalculatorCalculate amount realized, adjusted basis, gain, the supported main-home exclusion, and the amount that remains potentially taxable before choosing a rate. 2026 Federal Income Tax Bracket CalculatorApply the ordinary federal rate schedule to taxable income, then see marginal rate, effective rate, and the tax inside each band. 2026 Long-Term Capital Gains Tax CalculatorStack eligible qualified dividends and long-term gains above ordinary taxable income across the 0%, 15%, and 20% bands. 2026 Net Investment Income Tax CalculatorApply the separate 3.8% individual NIIT formula to supported Form 8960 modified AGI and net investment income without confusing either amount with taxable income or sale proceeds. 2026 Alternative Minimum Tax CalculatorApply the 2026 exemption, new 50% exemption phaseout, and 26%–28% ordinary AMT rates to supported Form 6251 AMTI and regular tax. 2026 ISO AMT Adjustment CalculatorCalculate one supported Form 6251 line 2i ISO exercise adjustment from Form 3921 values and traceable same-year dispositions before completing AMTI. 2026 ISO Sale Tax and AMT Basis CalculatorUse both statutory clocks to separate regular wages, regular basis, capital gain or loss, and the distinct AMT basis result for one 2026 sale. 2026 RSU Tax Withholding CalculatorEstimate gross vest wages and the supported federal supplemental income tax, Social Security, Medicare, and Additional Medicare withholding components. 2026 NSO Exercise Tax and Withholding CalculatorCalculate Code V compensation, exercise cost, supported federal withholding, cash funding, and initial basis without treating the exercise as an ISO or a sale. 2026 ESPP Tax and Cost Basis CalculatorUse one Form 3922 lot and both holding-period clocks to separate ordinary compensation, adjusted basis, and capital gain or loss.

2. Limit deductions only after eligibility and source records

Start from the exact tax-form concept the deduction uses. A limited deduction can reduce taxable income; it is not a credit, refund, payroll-tax exclusion, purchase discount, or reason to earn, spend, or pay more.

3. Estimate personal and family credits only after confirming who qualifies

Separate student or dependent eligibility, qualified expenses, employer or tax-free benefits, income limits, nonrefundable tax limits, and refundable-credit methods. A maximum credit is not automatically a refund.

4. Build the self-employed tax picture in the right order

Determine net business profit before estimating payroll-related tax. Build the broader projected total tax before using a safe-harbor payment planner. A quarterly reserve is not automatically the required payment.

5. Check contribution room before assuming a tax benefit

Contribution limits, deduction eligibility, income phase-outs, employer deposits, compensation, and account tax treatment answer separate questions. Use one person’s facts and verify the current plan or account rules.

6. Keep retirement tax interactions separate

An enhanced deduction is not the complete standard deduction or tax saving, a taxable Social Security amount is not the tax on the benefit, a required distribution is not the tax on that distribution, and a Medicare income-related premium is not a tax. Use each retirement tool for its narrow legal or planning question, then carry verified amounts into the broader return projection.

7. Connect tax assumptions to the household plan

Tax estimates affect usable cash flow, debt payoff capacity, account choices, and retirement projections. Use detailed guides to understand where a calculated number belongs and where it does not.

Why these calculators are deliberately separate

A federal return can combine ordinary income, qualified dividends, capital gains, self-employment tax, credits, additional taxes, withholding, estimated payments, and other rules. A calculator that asks for only taxable income cannot honestly produce the refund. A self-employment tax estimate cannot honestly produce the quarterly payment. A contribution limit does not prove that a contribution is deductible.

Each Gypes tax tool therefore begins with one defined question, exposes the main formula or threshold, and identifies the information that must be calculated elsewhere. Special or uncertain situations stop instead of forcing an answer through a standard path.

Use the right starting number

Taxable income is not adjusted gross income. Net business profit is not revenue or an owner draw. Total tax is not the balance due. Withholding and estimated payments are payments toward tax, not reductions to the rate schedule. Read the label and its source note before copying a number from a return, statement, or projection.

Carry amounts forward only once

The self-employment tax result can be one component of a projected total-tax worksheet. That total-tax result can then become an input to the estimated-payment planner. Do not add the same component again after it has already been included, and do not subtract withholding in more than one field.

Prefer current primary sources

Federal thresholds and procedures can change by tax year. Use the current IRS form, instructions, publication, or other responsible agency source for the exact year being modeled. Gypes pages identify their modeled year, scope, official references, and source-access date so an older scenario is easier to recognize.

Rerun when the facts change

A new job, business profit, capital gain, filing status, deduction, credit, withholding election, account contribution, or payment can change more than one calculation. Save the source values and rerun the affected tools instead of treating an early-year estimate as final.

These calculators provide educational federal arithmetic, not tax preparation, tax, legal, accounting, investment, benefits, or financial advice. They do not establish filing status, income classification, deduction or credit eligibility, worker status, payment timeliness, penalty protection, state obligations, or a refund. Verify the current official forms, instructions, records, software, and qualified guidance before filing, paying, contributing, or acting.