ProTaxServe

Knowledge

Resources, tools, and reference for the proactive taxpayer.

A working library, not a marketing surface. Use the tools below to come into a fact-finding call with the picture already loaded.

Knowledge base

The dates, the schedule, the numbers, and the paperwork.

  1. 01Tax calendar with important dates
  2. 02Year-end tax planning schedule
  3. 032026 tax planning guide
  4. 04Tax planning and preparation organizer

Calendar · Important dates

Federal and Texas

Tax calendar with important dates.

Filing deadlines, estimated payments and year-end cutoffs for the 2026 tax year and the 2027 filing season.

  1. Jan15Thu 2026

    Q4 2025 estimated tax payment

    Fourth installment of 2025 estimated tax for individuals.

    Individuals

  2. Feb2Mon 2026

    W-2 and 1099-NEC deadline

    Employers and payers furnish W-2s and 1099-NECs and file them with the government.

    Businesses

  3. Mar16Mon 2026

    S corporation and partnership returns

    Forms 1120-S and 1065 due, or file an extension. K-1s go out to owners.

    Businesses

  4. Apr15Wed 2026

    Individual and C corporation returns

    Form 1040 and calendar-year Form 1120 due, or file an extension. Q1 2026 estimate due. Last day for 2025 IRA and HSA contributions.

    Everyone

  5. May15Fri 2026

    Texas franchise tax report

    Annual franchise tax report and Public Information Report due for Texas entities.

    Businesses

  6. Jun15Mon 2026

    Q2 2026 estimated tax payment

    Second installment of 2026 estimated tax.

    Everyone

  7. Sep15Tue 2026

    Q3 estimate and extended pass-through returns

    Third installment of 2026 estimated tax. Extended Forms 1120-S and 1065 due.

    Everyone

  8. Oct15Thu 2026

    Extended individual and C corporation returns

    Extended Form 1040 and calendar-year Form 1120 due. Last day for SEP contributions on an extended return.

    Everyone

  9. Dec31Thu 2026

    Year-end planning deadline

    401(k) deferrals, tax-loss harvesting, charitable gifts, Roth conversions and RMDs for 2026 must be complete.

    Everyone

  10. Jan15Fri 2027

    Q4 2026 estimated tax payment

    Fourth installment of 2026 estimated tax for individuals.

    Individuals

  11. Feb1Mon 2027

    W-2 and 1099-NEC deadline

    Employers and payers furnish W-2s and 1099-NECs and file them with the government.

    Businesses

  12. Mar15Mon 2027

    S corporation and partnership returns

    Forms 1120-S and 1065 due for 2026, or file an extension.

    Businesses

  13. Apr1Thu 2027

    First RMD for those who turned 73 in 2026

    The first required minimum distribution can be delayed to April 1. Waiting means two RMDs in 2027.

    Individuals

  14. Apr15Thu 2027

    Individual and C corporation returns

    2026 Form 1040 and calendar-year Form 1120 due, or file an extension. Q1 2027 estimate due. Last day for 2026 IRA and HSA contributions.

    Everyone

  15. May17Mon 2027

    Texas franchise tax report

    May 15 falls on a Saturday, so the report is due the following Monday.

    Businesses

  16. Jun15Tue 2027

    Q2 2027 estimated tax payment

    Second installment of 2027 estimated tax.

    Everyone

  17. Sep15Wed 2027

    Q3 estimate and extended pass-through returns

    Third installment of 2027 estimated tax. Extended 2026 Forms 1120-S and 1065 due.

    Everyone

  18. Oct15Fri 2027

    Extended individual and C corporation returns

    Extended 2026 Form 1040 and calendar-year Form 1120 due.

    Everyone

Schedule · Strategy sessions

Year-end tax planning schedule.

Most year-end moves only count if they are done by December 31. These are the strategy sessions that get them planned and executed in time.

  1. August

    Mid-year coaching call

    A working session to review business performance, equity events and any life changes. We re-forecast the year and move strategy items that depend on full-year visibility into early Q4.

  2. October

    Year-end projection

    With extended returns filed and three quarters of actuals in hand, we project full-year income and tax, and set the target for the moves still available before December 31.

  3. November

    Year-end strategy session

    Strategies that require year-end action (equity acceleration, charitable bunching, harvesting, retirement contributions) are scheduled for execution. We coordinate any signature deadlines.

  4. By December 31

    Execution

    Final tax-loss harvesting, donor-advised fund contributions, charitable remainder trust funding, and year-end retirement plan contributions are completed before close of business December 31.

  5. January 15

    Close-out

    The Q4 estimated payment is sized to the final numbers. IRA and HSA contributions for the year can still be made up to the April filing deadline.

Reference · 2026 figures

Source PDF

2026 tax planning guide.

Brackets, deductions, contribution limits and phaseouts for the 2026 tax year, including the changes from the One Big Beautiful Bill Act.

Married, filing jointly, taxable income

$0–$24,800
10%
$24,801–$100,800
12%
$100,801–$211,400
22%
$211,401–$403,550
24%
$403,551–$512,450
32%
$512,451–$768,700
35%
Over $768,701
37%

Figures from the John Hancock 2026 tax planning guide. General reference only, not advice for your situation. Book a strategy call to see how they apply to you.

Organizer · Planning and preparation

Tax planning and preparation organizer.

Answer four short questions and we will assemble the documents and details to gather for your planning sessions and your return.

Step 1 of 4

How do you earn?

Widget · Strategy match

Which strategies might apply to me?

Five questions, no email required. The output is a starting reading list, not a tax plan.

Question 1 of 5

Which best describes your income level?

Widget · Glossary

17 terms

Tax terms, in plain English.

Common terms across the tax strategies, written for owners and operators rather than for examiners.

  • Section 1202IRC §1202

    Strategy

    A federal exclusion that lets a non-corporate shareholder exclude some or all of the gain on the sale of Qualified Small Business Stock held more than five years. The maximum excludable gain per issuer is the greater of $10 million or ten times the taxpayer adjusted basis. For stock acquired after July 4, 2025, the cap is the greater of $15 million or 10x basis, with partial exclusions at 3 and 4 years. Earlier stock keeps the $10 million / five-year rules.

  • Qualified Small Business Stock (QSBS)QSBS

    Strategy

    Stock in a domestic C-corporation that meets the §1202 gross-asset and active-business tests at original issuance. QSBS status is the prerequisite for the §1202 gain exclusion and the §1045 rollover.

  • Section 1244IRC §1244

    Strategy

    Allows an individual or partnership to treat a loss on the sale or worthlessness of qualifying small business corporate stock as an ordinary loss rather than a capital loss, up to $50,000 per year ($100,000 on a joint return).

  • Section 83(b) election§83(b)

    Strategy

    An election under §83 to recognize the value of restricted property at grant rather than vest. Starts the long-term capital gain holding period at grant and locks in the ordinary income amount at the grant value. Must be filed with the IRS within 30 days of grant.

  • Cost segregation study

    Strategy

    An engineering-based analysis that breaks a building into components and reclassifies short-life property out of the default 27.5 or 39-year real property schedule. The reclassified portions can then be depreciated more quickly, often eligible for bonus depreciation.

  • Cash balance plan

    Strategy

    A defined-benefit retirement plan that looks like a defined-contribution plan, with hypothetical participant accounts credited annually with a pay credit and an interest credit. Funded actuarially. Often allows owner-operators to deduct contributions far above 401(k) and profit-sharing limits.

  • Defined-benefit planDB plan

    Strategy

    A qualified retirement plan that promises a specific benefit at retirement, funded actuarially by the employer. Cash balance plans are a type of defined-benefit plan structured to read like a defined-contribution plan to participants.

  • Donor-advised fundDAF

    Strategy

    A charitable account at a sponsoring organization that lets a donor take an immediate income tax deduction for the contribution, while distributions to charities flow out over time. Useful for bunching deductions in a high-income year.

  • Charitable remainder trustCRT

    Strategy

    A split-interest trust that pays an income stream to a non-charitable beneficiary for a term of years or for life, with the remainder passing to charity. Lets an appreciated asset be sold inside the trust without immediate capital gain.

  • Entity optimization

    Strategy

    The deliberate selection and combination of legal structures (S-corp, C-corp, partnership, single-member or multi-member LLC, trust) so income, distributions, payroll and basis flow through the lowest viable tax cost.

  • Income shifting

    Strategy

    The legal redistribution of taxable income across taxpayers in a family group or across entities under common ownership so the aggregate tax bill is lower. Mechanisms include reasonable compensation to family members, family limited partnerships, and trust distributions.

  • Reasonable compensation

    The level of wages an S-corporation must pay an owner-employee for services performed, before non-wage distributions are taken. The IRS examines reasonableness based on industry, role, hours and comparables.

  • Bonus depreciation

    Strategy

    A federal provision that allows taxpayers to deduct a percentage of the cost of qualifying property in the year placed in service, rather than spreading it over the asset useful life. Permanently 100% for qualifying property acquired after January 19, 2025; earlier acquisitions follow the prior phase-down.

  • Qualified Business Income (QBI) deduction§199A

    Strategy

    A deduction of up to 20 percent of qualified business income from pass-through businesses, subject to income thresholds, wage limits and specified service trade or business rules.

  • Passive activity loss rules§469

    Strategy

    Rules that limit deduction of losses from passive activities against non-passive income. Real estate operators who qualify as a real estate professional or who meet short-term rental tests may avoid passive treatment.

  • Tax planning

    A process of analyzing a client’s financial situation and applying tax strategies to pay the lowest amount of taxes legally based on their facts and circumstances. Distinct from tax preparation, which is the year-end report on what already happened.

  • Tax preparation

    The work of arranging a year of facts on the right forms and submitting the return. Preparation answers what already happened. Planning shapes what is about to happen.