---
title: "10 Year-End Tax Strategies for Business Owners Before December 31"
date: "2025-11-24T08:00Z"
author: "Mia Anne Pham Reeves, CPA"
description: "Use these 10 legitimate year‑end tax moves before December 31 to keep more of what you earn, plus exactly what proof to keep so the IRS stays happy."
tags: ["year-end tax planning", "deductions", "accountable plan", "de minimis safe harbor", "Augusta rule", "QSEHRA", "ICHRA", "repairs vs improvements", "meals", "sponsorship", "merchant fees", "software"]
sources:
  - "IRS Publication 463 - Travel, Gift, and Car Expenses: https://www.irs.gov/publications/p463"
  - "IRS tangible property final regulations: https://www.irs.gov/businesses/small-businesses-self-employed/tangible-property-final-regulations"
  - "IRS Topic 415 - Renting residential and vacation property: https://www.irs.gov/taxtopics/tc415"
  - "IRS guide to business expense resources: https://www.irs.gov/forms-pubs/guide-to-business-expense-resources"
  - "IRS Publication 969 - HSAs and other tax-favored health plans: https://www.irs.gov/publications/p969"
canonical: "https://www.havenstoneadvisory.com/resources/blog/10-legal-tax-strategies-before-dec-31"
---

> Most owners leave thousands on the table because they don’t know what to track, or how.  
> Below are **10 legitimate, year‑end tax moves** you can review with your CPA **before December 31**. Each section shows **what it is**, **who qualifies**, **what proof to keep**, and a **30‑second action** you can take this week.

---

# The quick take

- **Do it by Dec 31:** If you’re cash‑basis and want the deduction this year, get expenses documented and paid by year‑end.  
- **Prove it:** Keep receipts, statements, and a short note on business purpose.  
- **Make it repeatable:** Add missing categories to your chart of accounts and a simple reimbursement policy.

Need deadlines or quarterly estimate help? Use our **[Tax Playbook & Estimator](/resources/guides/tax-playbook)**.

---

# 1) Accountable Plan Reimbursements  
_Home office, cell, internet, mileage_

**What it is:** A written policy to reimburse out‑of‑pocket business costs so the company deducts them and you **don’t** pick up income.

**Who it helps:** S‑Corp owners, partners, and key staff with mixed personal/business expenses.

**Proof to keep:** Home‑office square footage calc, utility bills, cell/internet statements, mileage logs.

**30‑second action:** Add an **“Accountable Plan”** policy and a simple monthly reimbursement form; pay as non‑taxable expense reimbursement (or via payroll marked non‑taxable).  
**Year‑end move:** Reimburse December expenses **before 12/31** if cash‑basis.

---

# 2) De Minimis Safe Harbor (the $2,500 rule)

**What it is:** An annual election to expense many tangible items up to **$2,500** per invoice/item (or **$5,000** with applicable audited financial statements) instead of capitalizing.

**Who it helps:** Anyone buying smaller gear, laptops, cameras, tools, shop equipment.

**Proof to keep:** Invoices showing per‑item cost at/under the threshold; chart‑of‑accounts mapping to expense.

**30‑second action:** Ask your CPA to attach the **de minimis safe harbor election** to your return and code qualifying purchases to expense (not fixed assets).  
**Year‑end move:** Make qualifying purchases and pay by **12/31** if cash‑basis.

---

# 3) Software & SaaS Implementation Costs

**What it is:** Beyond the subscription, many **implementation/migration/integration** fees are currently deductible (facts matter).

**Who it helps:** Teams adopting CRMs, ERPs, phone systems, payments, scheduling.

**Proof to keep:** SOWs, invoices, proof of payment, go‑live notes.

**30‑second action:** Add a **“Software Setup / Onboarding”** expense category so costs don’t vanish into “Misc.”  
**Year‑end move:** Collect vendor invoices and **pay by 12/31** (cash‑basis).

---

# 4) Merchant & Financing Fees  
_(They add up fast)_

**What it is:** Processor fees (Stripe/Square/Housecall Pro), merchant discount fees, and certain financing/loan fees (some amortize).

**Who it helps:** Anyone taking cards or using lines of credit/loans.

**Proof to keep:** Monthly processor statements; loan docs for points/origination fees.

**30‑second action:** Download **YTD fee reports** and book them month‑by‑month; set a **recurring calendar reminder** for statements.  
**Year‑end move:** Reconcile and record **all 12 months**.

---

# 5) Education That Improves Your Current Business

**What it is:** Deduct courses, conferences, and certifications that **maintain or improve** skills for your **existing** business (not a new trade).

**Who it helps:** Owners and staff upskilling for current roles.

**Proof to keep:** Agenda, receipt, travel details where applicable, brief purpose note.

**30‑second action:** Create a **“Professional Education”** category; require a **1‑page takeaway** upload from attendees.

---

# 6) Health Reimbursements for Small Teams  
_QSEHRA / ICHRA_

**What it is:** Structured health reimbursements that can be more affordable than group plans and tax‑efficient when set up correctly.

**Who it helps:** Small employers (QSEHRA is typically for employers with fewer than 50 FTE and no group plan). ICHRA can fit broader cases with employee‑class rules.

**Proof to keep:** Plan documents, required notices, payroll records.

**30‑second action:** Ask your broker/PEO about **QSEHRA/ICHRA** and implementation timing; run reimbursements properly through payroll.  
**Year‑end move:** If targeting a **Jan 1** start, finalize plan docs now.

---

# 7) Advertising vs. “Charity”  
_Sponsor, don’t donate_

**What it is:** A sponsorship with **promotional benefits** (logo, link, shout‑out) is typically an **advertising** deduction; a pure donation may be limited.

**Who it helps:** Anyone supporting local teams, events, associations.

**Proof to keep:** Sponsorship agreement/invoice showing the promotional benefits.

**30‑second action:** Ask the organization to **spell out ad benefits** in writing; code to **Advertising**, not Donations.

---

# 8) Meals That Are Actually **100%** Deductible

**What it is:** While most business meals are **50%**, certain **employee‑wide social events** (e.g., an annual party) can be **100%** deductible.

**Who it helps:** Employers hosting occasional staff gatherings.

**Proof to keep:** Receipt, attendee list, and purpose (“Quarterly team event”).

**30‑second action:** Use separate categories: **“Team Events (100%)”** vs. **“Business Meals (50%)”** and note the purpose in your records.  
**Year‑end move:** If hosting a team event, schedule and **pay before 12/31**.

---

# 9) Start‑Up & Organizational Costs

**What it is:** New businesses can deduct a portion of qualified **start‑up** and **organizational** costs in year one and amortize the rest.

**Who it helps:** First‑year entities or new lines of business.

**Proof to keep:** Pre‑opening legal fees, website/branding, training, travel related to launching, state filings.

**30‑second action:** Tag pre‑opening spend as **“Start‑Up”** so your CPA can optimize immediate vs. amortized deductions.

---

# 10) The “Augusta Rule” (280A(g))

**What it is:** Rent your home to your business for legitimate meetings up to **14 days/year**; the business deducts rent, and you generally don’t report the income.

**Who it helps:** Owners hosting board/strategy/client meetings at home.

**Proof to keep:** Agenda/minutes, fair‑market rent comps, invoice from you to the business, and payment trail.

**30‑second action:** Write a simple **meeting policy**, pick dates, create an invoice, and **pay from business to personal**.  
**Year‑end move:** Hold and pay for meetings **by 12/31** (cash‑basis).

---

## Bonus: Repairs vs. Improvements (and routine maintenance)

**What it is:** **Repairs/maintenance** keep assets in working order (often deductible now). **Improvements** add value/extend life (capitalize). A routine‑maintenance safe harbor may apply when work is expected more than once during the asset’s life.

**Proof to keep:** Invoices describing the work accurately.

**30‑second action:** Ask vendors to label work **“repair/maintenance”** when accurate (not “renovation”), and file invoices by asset/location.

---

# Make it automatic (so you don’t miss these)

- Add missing COA categories: **Accountable Plan, De Minimis, Software Setup, Merchant Fees, Professional Education, Sponsorships, Team Events, Start‑Up**.  
- **Monthly close by the 15th**; save statements and confirmations to a “Tax” folder.  
- Keep a **one‑page policy** for reimbursements and **Augusta meetings**.  
- **Quarterly review with your CPA** to tune what’s working.

---

# Tools & downloads

- **Overlooked Deductions Checklist** - track each item above and the proof you need.  
- **Accountable Plan (plug‑and‑play template)** - adopt, reimburse, and document quickly.  
- Deadlines & estimates: **[Tax Playbook & Estimator](/resources/guides/tax-playbook)**

> Don’t see these in your resources yet? Ask our team and we’ll send the latest links.

---

# What to do next

**Simple start:** Add the categories above and complete one reimbursement this week under an Accountable Plan.  

**Next step:** Review your expenses for the last 90 days and recode anything that belongs in **Software Setup**, **Merchant Fees**, or **Sponsorships**.  

**Full service:** [Schedule a strategy session](https://www.havenstoneadvisory.com/schedule-consultation) with HavenStone. We’ll review your books, map year‑end actions, and estimate the savings.
