How to Offset Capital Gains With Losses: A CPA Guide for 2026
Knowing how to offset capital gains with losses is a core skill in any CPA guide worth reading. For the 2026 tax year, this single strategy can save your clients thousands. Moreover, it can transform your firm from reactive tax prep into a proactive advisory practice. As a solo practitioner in Denver tax advisory, you already have the raw skill. This guide gives you the system to deliver real results and charge for them.
Table of Contents
- Key Takeaways
- How Do You Offset Capital Gains With Losses?
- What Is Tax-Loss Harvesting and How Does It Work?
- How Does the Wash Sale Rule Affect Your Strategy?
- How Do Capital Loss Carryforwards Work?
- How Can CPAs Turn This Into Advisory Revenue?
- Uncle Kam in Action
- Next Steps
- Related Resources
- Frequently Asked Questions
Key Takeaways
- Capital losses first offset capital gains dollar for dollar in 2026.
- Net losses can offset up to $3,000 of ordinary income yearly.
- Unused losses carry forward indefinitely to future tax years.
- The wash sale rule blocks losses within a 30-day window.
- Proactive loss planning creates recurring advisory revenue for your firm.
How Do You Offset Capital Gains With Losses?
Quick Answer: You net losses against gains by type first. Then excess losses offset up to $3,000 of ordinary income in 2026.
Learning how to offset capital gains with losses starts with the netting rules. The IRS uses a strict order. First, short-term losses offset short-term gains. Likewise, long-term losses offset long-term gains. Only after that do the two categories cross over.
This order matters because tax rates differ sharply. Short-term gains are taxed as ordinary income. In 2026, that rate can reach 37%. Meanwhile, long-term gains enjoy rates of 0%, 15%, or 20%. As a result, matching the right losses to the right gains changes the outcome. A skilled CPA guide always factors in these rate differences.
The Netting Order Explained
Think of netting as a three-step waterfall. Each step feeds the next one. Therefore, understanding the flow helps you plan sales in advance.
- Step 1: Net short-term losses against short-term gains.
- Step 2: Net long-term losses against long-term gains.
- Step 3: Apply any leftover loss across categories.
For deeper context, review the IRS guidance on capital gains and losses topic 409. This official page confirms the rules for 2026. Proactive strategic tax planning for clients depends on getting this order right.
A Simple 2026 Example
Imagine a client with a $20,000 long-term gain. She also holds a stock down $12,000. If she sells that stock, the loss offsets the gain. Consequently, her taxable gain drops to $8,000. At a 15% rate, she saves $1,800. That is real money from one trade.
Pro Tip: Always run the netting math before December 31. Timing sales correctly locks in the deduction for the current year.
What Is Tax-Loss Harvesting and How Does It Work?
Quick Answer: Tax-loss harvesting means selling losing investments on purpose. You then use those losses to offset gains and lower taxes.
Tax-loss harvesting is the engine behind smart gain planning. In short, you sell underwater positions to capture the loss. Then you deploy that loss against realized gains. Furthermore, you can reinvest the proceeds to stay in the market.
This strategy works best when done throughout the year. Many advisors wait until December. However, market dips happen all year long. Therefore, monitoring positions quarterly captures more losses. This is exactly where a solo practitioner adds value for busy clients.
Denver CPAs can run the numbers fast with our capital loss harvesting calculator for tax pros to model 2026 savings. This tool speeds up client conversations dramatically.
Who Benefits Most From This Strategy?
Not every client needs aggressive harvesting. Still, several profiles benefit greatly. Your job is to spot them early.
- High earners facing the 3.8% net investment income tax.
- Active traders with large short-term gains.
- Business owners who sold a company this year.
- Real estate investors with taxable brokerage gains.
Wealthy clients especially value this help. For that audience, consider our resources for high-net-worth tax strategies. These clients happily pay for proactive planning.
The Step-by-Step Harvesting Process
Follow a clear process so nothing slips. In addition, a repeatable checklist protects you from errors.
- Review the client portfolio for unrealized losses.
- Confirm realized gains that need offsetting.
- Sell the losing positions before year end.
- Avoid buying back within the wash sale window.
- Document every trade for Schedule D and Form 8949.
Did You Know? Net capital losses beyond gains can still offset $3,000 of ordinary income in 2026. Any excess rolls forward.
How Does the Wash Sale Rule Affect Your Strategy?
Quick Answer: The wash sale rule blocks a loss if you rebuy a substantially identical security within 30 days.
The wash sale rule is the biggest trap in loss harvesting. Specifically, it disallows the loss if you rebuy too soon. The window runs 30 days before and 30 days after the sale. That means a 61-day danger zone in total.
The rule applies to “substantially identical” securities. For example, selling and rebuying the same stock triggers it. Buying a near-identical fund can also trip the wire. The IRS explains this fully in Publication 550 on investment income. Every CPA guide must stress this point.
How to Stay Compliant
You can still stay invested without breaking the rule. In fact, several clean workarounds exist. Each one keeps your client compliant.
- Wait 31 days before buying the same security.
- Buy a similar but not identical fund instead.
- Swap into a different sector or index.
- Track purchases across all client accounts, including IRAs.
The IRA angle catches many pros off guard. A wash sale can trigger even across account types. Therefore, coordinate every account before selling. This level of care is what advisory clients truly pay for.
Crypto and the Wash Sale Rule
Crypto adds a unique twist for 2026. Historically, the wash sale rule targets securities. Digital assets have faced different treatment in the past. However, rules keep shifting fast in this space.
Because guidance changes often, verify current law before acting. Check IRS.gov for the latest crypto rules in 2026. Meanwhile, document every crypto trade carefully. Clients with digital assets need extra attention here.
Pro Tip: Keep a simple log of every sale date. This makes wash sale checks fast and airtight during review.
How Do Capital Loss Carryforwards Work?
Quick Answer: Unused capital losses carry forward indefinitely. They offset future gains and $3,000 of ordinary income each year.
Carryforwards are a hidden treasure for many clients. When losses exceed gains plus $3,000, the extra rolls forward. Better yet, these losses never expire during a lifetime. As a result, a big loss today shelters gains for years.
Many new clients arrive with forgotten carryforwards. Reviewing their prior returns often uncovers hidden value. This quick check alone can justify your advisory fee. Furthermore, it builds instant trust with the client.
A Multi-Year Planning Example
Consider a client with a $50,000 net loss in 2026. She has no gains this year. So she uses $3,000 against ordinary income. Then $47,000 carries forward to 2027 and beyond.
Next year, she sells a business for a $40,000 gain. The carryforward wipes out that entire gain. Consequently, she owes zero tax on the sale. That is the power of tracking losses over time.
2026 Capital Gains Rate Reference
Use this table to plan around the 0% bracket. Verify current limits at IRS.gov before filing.
| 2026 LTCG Rate | Single Taxable Income | Married Filing Jointly |
|---|---|---|
| 0% | Up to $49,450 | Up to $98,900 |
| 15% | Above the 0% threshold | Above the 0% threshold |
| 20% | Highest earners | Highest earners |
The Tax Foundation offers helpful context on these 2026 federal tax bracket figures. Pairing gain planning with entity work adds even more value. Explore our entity structuring services for clients to layer strategies.
How Can CPAs Turn This Into Advisory Revenue?
Quick Answer: Package loss planning as a recurring advisory service. Charge a flat fee for proactive, year-round tax savings.
Here is the real opportunity for solo practitioners. Tax prep is a commodity priced by the form. Tax planning, however, is a premium service. Clients pay far more for proactive savings than for filing.
Loss harvesting is a perfect entry into advisory work. It shows clear, measurable value every single year. Moreover, it naturally repeats, creating recurring revenue. This shift can double or triple your effective hourly rate. Learn how the Uncle Kam marketplace helps tax pros transition to advisory.
Pricing Your Loss Planning Service
Stop billing by the hour for planning work. Instead, price on the value you deliver. A client saving $10,000 gladly pays $2,500. That math works for both sides.
| Service Tier | What It Includes | Typical Fee |
|---|---|---|
| Basic Review | Annual loss harvesting check | $500 to $1,500 |
| Quarterly Planning | Ongoing portfolio monitoring | $2,500 to $5,000 |
| Full Advisory | Entity, retirement, and gain planning | $7,500 and up |
Systems Make the Difference
A solo practitioner cannot do this manually at scale. You need leverage to serve many clients well. Strategies should never run in isolation either. Instead, evaluate the full picture across every entity.
This is why an entity-aware tax planning software matters so much. It models gains, losses, and entities together. As a result, you deliver deeper plans in less time. Uncle Kam pairs AI software, MERNA certification, and warm leads so systems turn one person into a full advisory firm.
Ready to build this into your practice? Book a free strategy session with a growth strategist today. Small business owners also value this help, as our tax planning for business owners resources show.
Uncle Kam in Action: A Denver Solo CPA Scales Up
Client Snapshot: Maria runs a one-person tax firm in Denver. She serves about 180 individual and small-business clients. For years, she focused only on tax prep.
Financial Profile: Her firm grossed roughly $210,000 in annual revenue. However, her hours were maxed out during tax season. She had no room to grow the old way.
The Challenge: One high-earning client sold company stock for a $180,000 gain. Maria filed the return correctly and moved on. Later, she realized she could have offset most of that gain. The missed planning cost the client thousands in tax.
The Uncle Kam Solution: Maria adopted a proactive loss planning system. She built a repeatable process for capital gains and losses. Then she reviewed portfolios each quarter, not just in April. She used software to model every client scenario fast.
For that same client the next year, she harvested $95,000 in losses. Those losses offset a new $95,000 gain from another sale. The client owed zero federal tax on that gain. Maria charged a $4,500 flat advisory fee for the plan.
The Results: The client saved about $19,000 in federal tax. Maria earned $4,500 for a few hours of work. That is a first-year return of more than 4x for the client. Furthermore, she rolled the same model out to 30 more clients.
Within one year, Maria added $85,000 in advisory revenue. Her prep hours stayed flat while her income jumped. See more stories like this on our client results and case studies page.
Next Steps
Turn this knowledge into action right away. Review your tax prep and filing workflow and add these steps.
- Scan client returns for unused loss carryforwards now.
- Build a simple quarterly portfolio review process.
- Package loss planning as a flat-fee advisory service.
- Book a strategy session to build your system.
Related Resources
- Proactive Tax Strategy Services
- The MERNA Method Framework
- Uncle Kam Tax Strategy Blog
- High-Net-Worth Tax Planning
Frequently Asked Questions
Can capital losses offset ordinary income?
Yes, but only up to a limit. In 2026, net capital losses can offset up to $3,000 of ordinary income. Any extra loss carries forward to future years. Married taxpayers filing separately face a $1,500 limit.
Do capital loss carryforwards ever expire?
No, they do not expire during your lifetime. Unused losses carry forward year after year. They offset future gains and $3,000 of ordinary income annually. However, they generally do not pass to heirs.
What triggers the wash sale rule?
The rule triggers when you rebuy too fast. Specifically, buying a substantially identical security within 30 days disallows the loss. This window covers 30 days before and after the sale. It can even apply across IRA accounts.
When is the best time to harvest losses?
Harvest losses whenever markets dip during the year. Many pros wait until December, which misses opportunities. Therefore, review portfolios each quarter instead. All sales must settle by December 31 to count for 2026.
How much should CPAs charge for loss planning?
Price the service on value, not hours. A basic review can start around $500 to $1,500. Full advisory packages often reach $7,500 or more. Clients happily pay when savings clearly beat the fee.
This information is current as of 7/23/2026. Tax laws change frequently. Verify updates with the IRS if reading this later.
Last updated: July, 2026
