Personal loans are straightforward when it comes to applying and repaying them—but taxes? Not always. The 2026 tax year brings several changes that affect whether certain types of interest are deductible and what documentation borrowers need to keep.

Whether you’re a high-income borrower, medical professional, or small business owner, reviewing these seven tax facts will help you understand important personal loan tax implications for 2026, avoid common mistakes, and optimize your personal loan tax planning.

Key Considerations

In general, you can only deduct personal loan interest used to cover eligible business expenses, qualified higher education expenses, or certain taxable investments.
Deducting personal loan interest will require tracing the loan proceeds and providing substantial documentation of their use.
2026 tax changes make it important to determine whether itemizing makes sense for certain deductions and ensure you qualify based on your income and other limitations.

1. Interest deductibility depends on how you use the loan funds

How you use your personal loan funds is key, since interest on purely personal borrowing is nondeductible. If you use a personal loan to consolidate high-interest debt or cover an unexpected personal expense, then it’s likely you will receive no tax benefit for the interest paid.

But, according to KPMG’s 2026 Personal Tax Planning Guide, deducting your personal loan interest may be possible in a few situations. These include when you use the funds to pay “ordinary and necessary” business expenses, taxable investment purchases, or qualified education expenses.

However, you can only deduct loan interest for these purposes if you follow the specific rules on allocation (for mixed uses of funds) and participation (for business), maintain detailed records, and don’t exceed the income thresholds or maximums for the particular deduction.

Here’s a quick look at common scenarios and the impact on interest deductibility:

Type of use	Examples	Federal deductibility of personal loan interest
Personal consumption	Weddings, home improvements, debt consolidation	Not deductible
Business use	Equipment, working capital, professional expenses	Potentially deductible if properly traced and ordinary/necessary for your business
Investment purchase	Taxable brokerage investments	May qualify to deduct up to your net investment income under investment interest deduction rules if you itemize
Qualified higher education expenses	Qualified higher education expenses	May qualify to deduct up to $2,500 of interest per year if solely used for eligible expenses or student loan refinancing

Since determining deductibility can be tricky in some situations, consulting a tax expert is wise to ensure your situation qualifies and to maximize your tax benefits.

2. Tracing loan proceeds is essential for deductions

Loan tracing for tax purposes means documenting exactly how you spend each dollar of borrowed money so you can determine whether interest is deductible and how much.

The IRS requires taxpayers to trace the debt to the specific business, investment, or higher education use under the interest allocation rules. When you use parts of the same personal loan for different purposes, such as purchasing investments while also funding your wedding, you’ll need to properly allocate the amounts.

Follow these practical documentation steps:

Save bank records showing how funds were disbursed (having separate business and personal accounts helps)
Retain lender interest statements and year-end summaries
Keep written notes and receipts detailing use of proceeds, especially for mixed-use loans split between personal, business, higher education, or investment purposes

Working with a lender that provides clear disbursement records, consistent interest statements, and transparent amortization schedules—such as BHG Financial—makes loan tracing far easier.

3. Investment interest deduction rules apply for borrowed funds

The investment interest deduction allows you to deduct interest paid on loans used to purchase taxable investments, limited to your net investment income (your total investment profits minus related expenses) for the year.

If your investment income equals or exceeds your investment interest expense, you may fully utilize the deduction for the tax year. Otherwise, you can often carry the excess or “disallowed” interest forward to the next year. You’ll need to itemize and use IRS Form 4952 to claim this tax break.

Here’s a recap of the key requirements for deducting investment interest:

You must use the funds directly for investments that produce taxable income, and the lender must permit this use
You can’t deduct interest tied to tax-exempt investments or personal purchases
Detailed tracing, records, and proper allocation are required

It’s also wise to factor other passive income tax considerations into your overall tax planning strategy.

4. Deducting bad debts may also be possible

If you’re on the other end of the transaction and provide someone else with a bona fide personal loan that becomes worthless and unrecoverable, the IRS may allow you to claim a bad debt tax deduction. However, qualifying for this tax write-off can be challenging.

Informal, undocumented loans to friends or family commonly fail to qualify. A default may be a nondeductible personal loss unless the debt was real (not a gift), documented, enforceable, and completely worthless. But if you do qualify, you can report a short-term loss on Form 8949.

But if you have a bad business debt with a client, supplier, employee, or a similar party, you have a higher likelihood of being able to deduct it from your gross income on your business tax return. Per IRS rules, the bad business debt must be partly or fully worthless.

In either case, expect strict scrutiny and consider speaking with a tax expert before deducting the bad debt. You can also follow these steps to preserve potential eligibility for this deduction:

Create a written loan agreement with clear repayment terms, such as the payment schedule, interest rate, any required collateral, and the maturity date
Charge a reasonable interest rate and document payments
Maintain thorough documentation of collection efforts if the borrower defaults but know that taking them to court isn’t necessary

5. 2026 tax law changes affect deduction decisions

Inflation adjustments and 2026 tax law changes affect whether itemizing deductions beats the standard deduction and how much potential interest deductions are worth at your marginal rate.

For 2026, the IRS reports standard deductions of $16,100 (single or married filing separately), $32,200 (married filing jointly), and $24,150 (head of household). While marginal federal rates remain 10% at the low end and 37% at the top, the income thresholds have changed as follows:

Tax rate	Single	Head of household	Married filing separately	Married filing jointly
10%	$0 to $12,400	$0 to $17,700	$0 to $12,400	$0 to $24,800
12%	$12,401 to $50,400	$17,701 to $67,450	$12,401 to $50,400	$24,801 to $100,800
22%	$50,401 to $105,700	$67,451 to $105,700	$50,401 to $105,700	$100,801 to $211,400
24%	$105,701 to $201,775	$105,701 to $201,750	$105,701 to $201,775	$211,401 to $403,550
32%	$201,776 to $256,225	$201,751 to $256,200	$201,776 to $256,225	$201,776 to $256,225
35%	$256,226 to $640,600	$256,201 to $640,600	$256,226 to $384,350	$512,451 to $768,700
37%	$640,601 and up	$640,601 and up	$384,351 and up	$768,701 and up

Example: Imagine you’re a single tax filer who is eligible for the investment interest expense deduction, falls into the 24% tax bracket, and has $20,000 in qualifying interest. While your investment interest expense deduction would be worth $4,800, considering you have no other itemized deductions, claiming the $16,100 standard deduction works out better in this situation.

In addition, new tax laws introduce itemized deduction limitations in 2026. Some important examples include the 35% cap on itemized deductions for top earners and changes to the charitable contribution and SALT deductions.

If you typically itemize, revisit your 2026 projections to see whether interest deductions, charitable gifts, and SALT/mortgage items exceed the higher standard deduction. And if you’re near the itemization threshold or a changing tax bracket, consider aligning your loan timing and structure with broader tax planning to improve your after-tax outcomes.

6. The new vehicle loan interest deduction doesn’t work for typical personal loans

While a temporary vehicle loan interest deduction is available for qualifying new American-made vehicles purchased in the tax years 2025–2028, you can only deduct interest on a qualifying personal-use auto loan secured by the vehicle. This means your typical personal loan won’t qualify.

But if you have a qualifying auto loan, the IRS lets you deduct up to $10,000 annually, subject to income caps and use limitations. Full deductibility phases out as your modified adjusted gross income exceeds $100,000 (single) or $200,000 (married filing jointly), and you don’t need to itemize.

Here are more key details to know about this new deduction:

The vehicle must meet several requirements, including having a gross weight under 14,000 pounds and two or more wheels, not having a salvage title, and being of an eligible type
Only new purchase loans qualify (not leases or refinances)
Business-use vehicles follow business interest rules, not this temporary provision
Lenders must provide an annual statement by January 31 reporting total auto loan interest paid
Borrowers must have documentation, provide their vehicle identification number, and claim the deduction on Schedule 1-A

7. Borrowers must follow strict tax reporting and recordkeeping requirements

For the 2026 tax year, expect the IRS to carefully scrutinize interest deductions for higher-income taxpayers. Besides being honest when you complete your return, having records that substantiate all interest-related deductions, show the timing of your borrowing and repayments, and clarify allocations for mixed-use debt is crucial in the event of an audit.

Here are some common records you should keep:

Loan agreements and amortization/interest statements
Bank statements, wire confirmations, and canceled checks
Proof of how loan proceeds were spent (invoices, receipts, brokerage confirmations)
Any tax forms or information returns from lenders (e.g., Form 1098 or lender-provided interest summaries)
Written allocation notes for mixed-use loans and copies of filed tax forms (e.g., Schedule A, Form 4952)

The difference between a smooth filing and an audit inquiry often lies in your paper trail. BHG Financial can help you align your borrowing structure and timing with your documentation needs, ensuring your strategy is tax-aware from day one.

How BHG can support your debt consolidation goals

Even if you don’t qualify for a tax deduction on the interest paid, consolidating high-interest debt with a BHG personal loan could help you manage your debt more effectively with a predictable, lower monthly payment and considerable interest savings over time.

As a premium lender, we offer unsecured personal loans to qualified clients in amounts up to $250,000,¹ with flexible repayment terms of up to 10^1,2 years and no prepayment penalties. Plus, you’ll receive our premium concierge service and get your funds in as few as five days.³

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Personal loan borrower tax tips FAQs

Is interest on personal loans generally tax-deductible?

Typically, interest on personal loans isn’t deductible for federal tax purposes in 2026 unless you use the funds for qualifying business, higher education, or investment purposes. You’ll also need to properly trace how you used the funds and have thorough documentation.

What qualifies for the 2026 vehicle loan interest deduction?

To claim the new vehicle loan interest deduction in 2026, you must purchase a qualifying American-made vehicle with a personal-use auto loan—not an unsecured personal loan—that originates after December 31, 2024. Leases and refinances don’t qualify. You’ll need to provide documentation and claim the deduction on Schedule 1-A. Finally, you must not exceed the income limits.

How does income affect eligibility for the vehicle loan interest benefit?

While the maximum vehicle loan interest deduction is $10,000 annually, it phases out by $200 for every $1,000 your modified adjusted gross income (MAGI) exceeds $100,000 (single) or $200,000 (married filing jointly). The deduction completely phases out with a MAGI above $150,000 (single) or $250,000 (married filing jointly).

What documentation should borrowers keep to support tax claims?

Keep bank records, canceled checks, lender interest statements, signed loan agreements, and proof of how you spent every dollar of your loan. Also, keep written allocation notes for mixed-use loans and copies of filed tax forms, such as Schedule A and Form 4952.

How do recent tax law changes affect standard versus itemized deductions?

Higher 2026 standard deduction amounts mean fewer households will benefit from itemizing, so compare both methods before filing. Besides considering deductible investment interest expenses, account for other itemized deductions, such as state and local taxes, mortgage interest, and charitable donations. Remember that not all interest-related deductions require itemizing.

This article has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for tax, legal or accounting advice. You should consult your own tax, legal and accounting advisers before taking any action(s).

Not all solutions, loan amounts, rates or terms are available in all states.

¹ Terms subject to credit approval upon completion of an application. Loan sizes, interest rates, and loan terms vary based on the applicant's credit profile.  

² Personal Loan Repayment Example: A $60,000 personal loan with a 7-year term and an APR of 17.06% would require 84 monthly payments of $1,191.38.

³ This is not a guaranteed offer of credit and is subject to credit approval.

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