Lou Perez
Jun 27, 2024

Automated Payroll for Solar Companies: Simplify and Comply with Lumber

Payroll
Compliance
Experience the future of construction workforce management with Lumber
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In the fast-growing solar industry, efficient operations are key to success. As your company expands, managing payroll can become increasingly complex and time-consuming. Enter Lumber: a cutting-edge payroll solution designed specifically for the unique needs of solar companies. Here are six reasons why partnering with Lumber for payroll needs can propel your business forward.

Effortless Efficiency: Automate Your Solar Workforce Payroll

Time is money, especially in the solar industry. Lumber streamlines wage calculations, handling prevailing wages, minimum wages, and overtime on autopilot. By automating these tedious tasks, your team can focus on what truly matters: growing your solar business and installing more panels.

Compliance Made Easy: Stay Confident in Your Documentation

Staying compliant is crucial in an industry with stringent regulations. Lumber's integrated reporting features provide comprehensive documentation for all your payroll needs. Ensure you have the necessary records to meet compliance obligations effortlessly to save time and avoid potential legal issues.

AB 2143 Simplified: Navigate California Regulations with Ease

AB 2143 presents unique challenges for solar companies operating in California. Lumber understands these complexities and has built solutions directly into its platform. Our system seamlessly embeds required wage provisions into contracts, ensuring smooth project execution and worker satisfaction while keeping you compliant.

Cost-Effective Compliance: Focus on Profits, Not Paperwork

Managing compliance can drain resources. Lumber's cost-effective compliance management reduces administrative burdens, allowing you to invest your time and money where it matters most—in profitable solar installations. Let us handle the intricacies of payroll compliance while you focus on growing your business.

Accuracy You Can Trust: Eliminate Payroll Errors and Delays

Nothing undermines employee trust faster than payroll mistakes. Lumber's automated payroll system minimizes the risk of human error, ensuring your employees receive accurate and timely payments – every time. This reliability boosts morale and reduces the time spent correcting mistakes.

Scalability for Growth: A Payroll Solution That Grows with You

As your solar business expands, you need a payroll solution to keep pace. Lumber scales seamlessly to meet your evolving needs. Our flexible system adapts to your growing workforce, simplifying payroll management throughout every stage of your company's journey.

Power Your Payroll with Lumber

In the competitive solar industry, every advantage counts. By partnering with Lumber for your payroll needs, you're not just simplifying a necessary business function – you're investing in a tool that will help drive your company's growth and success.

From automated efficiency to bulletproof compliance, Lumber offers the comprehensive payroll solution that solar companies need to thrive in today's market. Don't let payroll complexities hold your business back. Embrace the power of Lumber and watch your solar company soar to new heights.

Ready to revolutionize your payroll process? Contact Lumber today for a personalized demo and see how we can illuminate your path to payroll success in the solar industry.

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Introduction

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“In a world older and more complete than ours they move finished and complete, gifted with extensions of the senses we have lost or never attained, living by voices we shall never hear.”
Lou Perez
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Other resources

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Eget quis mi enim, leo lacinia pharetra, semper. Eget in volutpat mollis at volutpat lectus velit, sed auctor. Porttitor fames arcu quis fusce augue enim. Quis at habitant diam at. Suscipit tristique risus, at donec. In turpis vel et quam imperdiet. Ipsum molestie aliquet sodales id est ac volutpat.

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Simplify and streamline your payroll with Lumber Payroll
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Mandatory Deadlines | Internal Review/Best Practice 
Critical Construction Compliance | Awareness Week
January 2026
Jan 2, 7, 9, 14, 16, 21, 23, 28 & 30
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Thursday, Jan 15, 2026
Deadline for December 2025 Monthly Depositor Tax Liabilities
Monday, Feb 2, 2026
(Standard Jan 31 deadline shifted to next business day as it falls on a weekend)
1. File Form 941 (Employer's Quarterly Federal Tax Return) for Q4 2025
2. Distribute Form W-2s to employees for 2025
3. Distribute Form 1099-NEC to subcontractors for 2025
4. File Form W-2s with the Social Security Administration (SSA)
5. File Form 1099-NEC with IRS
6. File Form 1096 (summary of 1099s)
7. State Unemployment and Quarterly Wage Reports for Q4 2025
These reports are typically due Jan 31. Verify state-specific deadlines and file accordingly.
Annual Depositor Deadline (Form 944 Filers)
Annual depositors must file Form 944 and deposit taxes with the return by this date. 
February 2026
Feb 4, 6, 11, 13, 18, 20, 25 & 27
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Tuesday, Feb 10, 2026
Extended deadline to file Form 941 (Q4 2025)
Only if all Q4 2025 federal tax deposits were made on time.
Tuesday, Feb 17, 2026
Deadline for January Monthly Depositor tax liabilities
(Feb 15 is a Sunday and Feb 16 is President’s Day)
March 2026
Mar 4, 6, 11, 13, 18, 20, 25 & 27
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Monday, Mar 2, 2026
File Form 1099-MISC with the IRS (paper filing)
(Standard Feb 28 deadline shifted to next business day)
Monday,
Mar 16, 2026
Deadline for Feb Monthly Depositor tax liabilities
April 2026
Apr 1, 3, 8, 10, 15, 17, 22, 24 & 29
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Wednesday
Apr 15, 2026
Deadline for March Monthly Depositor tax liabilities 
Thursday, Apr 30, 2026
1. File Form 941 for Q1 2026
2. File State Quarterly Wage Reports (Verify state-specific deadlines)
Internal Compliance Review: Review certified payroll reports and compliance for Q1.
Certified payroll reports are due WEEKLY for prevailing wage projects.
May 2026
May 1, 6, 8, 13, 15, 20, 22, 27 & 29
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Friday, May 15, 2026
Deadline for April Monthly Depositor tax liabilities
June 2026
Jun 3, 5, 10, 12, 17, 19, 24 & 26
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Monday, Jun 15, 2026
Deadline for May Monthly Depositor tax liabilities 
Tuesday, Jun 30, 2026
1. Mid-year review of workers' compensation insurance
2. Review certified payroll compliance for prevailing wage projects
Certified payroll reports are due WEEKLY for prevailing wage projects.
July 2026
Jul 1, 3, 8, 10, 15, 17, 22, 24, 29 & 31
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Wednesday, Jul 15, 2026
Deadline for June Monthly Depositor tax liabilities 
Friday, Jul 31, 2026
1. File Form 941 for Q2 2026
2. File state quarterly wage reports (Verify state-specific deadlines)
3. Review and update fringe benefit rates for union projects
August 2026
Aug 5, 7, 12, 14, 19, 21, 26 & 28
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Monday, Aug 17, 2026
Deadline for July Monthly Depositor tax liabilities 
(Aug 15 is a Saturday)
September 2026
Sep 2, 4, 9, 11, 16, 18, 23, 25 & 30
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Sep 7 - Sep 11, 2025
National Payroll Week
Take a moment to appreciate yourself this week. You deserve it.
Tuesday, Sep 15, 2026
Deadline for August Monthly Depositor tax liabilities 
Wednesday Sep 30, 2026
1. Review job costing and labor burden rates
2. Prepare for year-end certified payroll audits
October 2026
Oct 2, 7, 9, 14, 16, 21, 23, 28 & 30
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Thursday, Oct 15, 2026
Deadline for September Monthly Depositor tax liabilities 
November 2026
Nov 4, 6, 11, 13, 18, 20, 25 & 27
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Monday, Nov 2, 2026
1. File Form 941 for Q3 2026
2. File state quarterly wage reports (Verify state-specific deadlines)

Monday, Nov 16, 2026
Deadline for October Monthly Depositor tax liabilities 
(Nov 15 is a Sunday)
Monday,
Nov 30, 2026
Year-End Preparation:
1. Order W-2 and 1099 forms for year-end
2. Review subcontractor W-9s and update as needed
December 2026
Dec 2, 4, 9, 11, 16, 18, 23, 28 & 30
Semi-Weekly Federal Tax Deposit Due
Sat-Tue wages → Friday deposit; Wed-Fri wages → Wednesday deposit
Tuesday,
Dec 15, 2026

1. Final payroll of the year - verify all hours and classifications
2. Ensure all certified payroll reports are submitted for prevailing wage work
Certified payroll reports are due WEEKLY for prevailing wage projects.
3. Complete year-end workers' compensation audit paperwork
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