Whether you’re a contractor in Livonia, a retailer in Macomb County, or a growing startup in Oakland County, one of the most important financial decisions you’ll make is choosing the right accounting method.
Many Michigan small businesses begin with cash accounting because it’s simple. But as revenue grows, inventory expands, or financing becomes necessary, the question becomes unavoidable:
When does the IRS require you to switch from cash to accrual accounting?
This 2026 guide explains the IRS rules, the gross receipts threshold, and when growth may require a formal accounting method change.
Cash vs. Accrual Accounting: What’s the Difference?
Understanding the difference is critical for tax compliance and financial reporting.
Cash Accounting
- Income is recorded when payment is received
- Expenses are recorded when they are paid
- Simple and commonly used by small service-based businesses
Cash accounting reflects your current bank balance but does not always show what you are owed or what you owe.
Accrual Accounting
- Income is recorded when earned (not when collected)
- Expenses are recorded when incurred (not when paid)
- Required for many growing businesses
Accrual accounting provides a more accurate picture of profitability, especially when contracts, inventory, or receivables are involved.
When Does the IRS Require Accrual Accounting?
1. The IRS Gross Receipts Test (2026 Update)
Under current IRS rules for the 2026 tax year:
- Businesses with average annual gross receipts exceeding $31 million (calculated over the prior three years) are generally required to use the accrual method.
This threshold is adjusted periodically for inflation. If your three-year average exceeds the limit, cash accounting is typically no longer permitted.
2. The “Clear Reflection of Income” Rule
Even if your business is under the $31 million threshold, the IRS requires that your accounting method clearly reflect income.
Situations that may require accrual accounting include:
- Businesses with significant inventory
- Long-term construction contracts
- Manufacturing operations
- Complex receivable and payable structures
For example, many Macomb County manufacturers and Southeast Michigan contractors must use accrual accounting because cash accounting would materially distort income.
When Switching Becomes Practically Necessary
In many cases, the IRS may not require accrual accounting—but banks, bonding companies, or buyers will.
Lending and Bonding Requirements
Commercial lenders typically require:
- Accrual-based financial statements
- Accounts receivable aging reports
- GAAP-compliant financials
If you’re applying for a line of credit, SBA loan, or municipal bond, accrual accounting is often mandatory.
Inventory-Based Businesses
If inventory becomes material to your operations, accrual accounting is typically required to properly calculate:
- Cost of Goods Sold (COGS)
- Gross margin
- Accurate taxable income
Cash accounting does not properly match inventory costs to revenue.
Business Sale or Exit Planning
If you plan to sell your business, buyers and private equity firms will expect accrual-based records. Valuations are based on true profitability—not cash timing differences.
How to Change from Cash to Accrual (IRS Compliance Checklist)
Switching accounting methods is not automatic. It requires formal IRS approval.
1. Maintain Consistency
You cannot change methods year to year without filing for approval. The IRS requires consistency unless a formal change is made.
2. File IRS Form 3115
To change accounting methods, you must file:
IRS Form 3115 – Application for Change in Accounting Method
This filing notifies the IRS of your transition and requires detailed technical calculations. Improper filing can delay approval or trigger compliance issues.
3. Calculate the Section 481(a) Adjustment
When switching methods, you must account for timing differences to ensure income is not double-counted or omitted.
The Section 481(a) adjustment:
- Prevents double taxation
- Corrects prior timing differences
- May spread income adjustments over multiple years
This is one of the most technical aspects of the transition and should be handled by a CPA experienced in accounting method changes.
4. Upgrade Internal Bookkeeping
Accrual accounting requires tracking:
- Accounts Receivable
- Accounts Payable
- Unearned revenue
- Accrued expenses
Your accounting software and internal controls may need to be updated to support the transition.
Should Your Michigan Business Switch to Accrual Accounting?
You may need to switch if:
- Your 3-year average gross receipts exceed $31 million
- You carry significant inventory
- You operate under long-term contracts
- You’re seeking financing or bonding
- You’re preparing for a sale
- Your current reporting does not clearly reflect income
For many Livonia, Macomb County, and Oakland County businesses, switching to accrual accounting is a natural part of growth.
Work with a Michigan CPA Firm Experienced in Accounting Method Changes
Changing from cash to accrual accounting is more than a bookkeeping update—it is a tax and compliance decision that affects future reporting, taxable income, and financial strategy.
At IKRG CPAs & Consultants, PC, we help growing Michigan businesses:
- Determine whether accrual accounting is required
- Analyze gross receipts thresholds
- File IRS Form 3115 correctly
- Calculate Section 481(a) adjustments
- Align financial reporting with lender requirements
We serve contractors, manufacturers, retailers, and professional service firms across Metro Detroit, Macomb County, and Oakland County.
Contact IKRG CPAs & Consultants, PC
Ready to determine whether your business needs to switch accounting methods?
📍 32238 Schoolcraft Road, Suite 163
Livonia, MI 48150
📞 (313) 492-4254
