Buying equipment before year-end can cut your 2026 tax bill, but only if the asset is placed in service on time and you understand the gap between federal and California rules. This Section 179 Union City guide walks through the 2026 federal limits, California’s $25,000 cap, bonus depreciation, vehicle rules and a practical checklist for owners who want to finish purchases before December 31, 2026.
Accountico Inc. is a CPA firm in Union City, CA that works with business owners in Fremont, Newark, Hayward, San Leandro, Castro Valley and across the Bay Area. This guide is general information based on IRS and Franchise Tax Board guidance available as of October 8, 2026. It is not tax advice for your specific situation.
What Section 179 means for Union City owners in 2026
Section 179 lets you elect to expense all or part of the cost of qualifying business property in the year you place it in service, instead of depreciating that cost over several years. For a shop, clinic, contractor yard or office in Union City, that often means computers, machinery, tools, furniture and certain vehicles. The election is made on IRS Form 4562 (see Publication 946, How To Depreciate Property), and the deduction cannot exceed your taxable income from an active trade or business. Amounts disallowed by the income limit can generally be carried forward.
Two rules trip up owners every December. First, the property must be purchased (as defined for Section 179) and placed in service during the tax year, generally with more than 50% business use. Second, California does not follow the large federal dollar limits. A purchase that looks fully deductible on a federal return can create a large California adjustment. Pairing this guide with your tax strategy and planning work and clean bookkeeping keeps the federal and state stories aligned before you file.
2026 federal Section 179 limits (Rev. Proc. 2025-32)
IRS Publication 946’s What’s New for 2026, reflecting Revenue Procedure 2025-32 section 4.24, sets these federal amounts for tax years beginning in 2026:
- Maximum Section 179 expense: $2,560,000.
- Phaseout threshold: the $2,560,000 limit is reduced dollar-for-dollar when the cost of Section 179 property placed in service during the year exceeds $4,090,000.
- SUV Section 179 cap: $32,000 under IRC Section 179(b)(5)(A) for a qualifying sport utility vehicle.
Most Union City and Tri-City small businesses never approach the $4.09 million phaseout. The more practical federal constraint is usually taxable income from the business and whether the asset truly qualifies. Illustration (federal): if you place $80,000 of computers and machinery in service in 2026 and have sufficient business income, you can generally elect the full $80,000 under federal Section 179 because $80,000 is well under the $2.56 million ceiling.
Always confirm the current figures in Publication 946 before you finalize a large purchase. Limits change with inflation adjustments each year.
California’s $25,000 Section 179 cap (and no bonus depreciation)
This is the local angle that matters most for a Section 179 Union City purchase plan. The Franchise Tax Board’s 2025 Instructions for Form FTB 3885 and Instructions for Form FTB 3885A state that California does not conform to the federal Section 179(b)(1) and (2) limitation amounts. For California purposes:
- Maximum California Section 179: $25,000.
- California phaseout: the $25,000 limit is reduced if the cost of all Section 179 property placed in service during the taxable year is more than $200,000.
- No California bonus depreciation: California does not conform to IRC Section 168(k).
- No California Section 179 for off-the-shelf computer software: even though software can qualify federally.
- Narrower California property definition: California does not conform to the expanded federal definition of Section 179 property for certain lodging-related property and certain qualified real property improvements.
Illustration (California): the same $80,000 of computers and machinery can support a full $80,000 federal Section 179 election, but California Section 179 is capped at $25,000. The remaining $55,000 of California basis is depreciated under California rules. That $55,000 federal/California difference is a state adjustment you track on Schedule CA and FTB Form 3885 or 3885A.
Illustration (California phaseout): if you place $210,000 of Section 179 property in service, California reduces the $25,000 limit by $10,000 ($210,000 minus $200,000), leaving a $15,000 California maximum for that year.
Corporations have one more California option. Under Revenue and Taxation Code Section 24356, a corporation may elect additional first-year depreciation of up to 20% of the cost of qualifying tangible personal property with a useful life of at least six years, with a maximum additional first-year depreciation of $2,000. Per the FTB 3885 instructions, a corporation cannot elect both IRC Section 179 and this additional first-year depreciation for the same taxable year. Land, buildings and structural components do not qualify for that additional first-year election.
Placed in service by Dec 31: the rule that trips people up
For a calendar-year business, December 31, 2026 is the hard stop for a 2026 Section 179 election, which is why Section 179 Union City owners treat placed-in-service timing as a project deadline, not a paperwork afterthought. Publication 946 explains that you place property in service when it is ready and available for a specific use in your business, even if you are not using it that day. Delivery alone is not enough if the asset still needs installation, configuration or modifications before it can do the job you bought it for.
Common year-end pitfalls for Union City owners:
- Ordered in December, installed in January. If the machine is not ready and available until 2027, the Section 179 year is usually 2027.
- Sitting in a crate. An unopened shipment that cannot yet be used is generally not placed in service.
- Personal-use conversion. Property used personally first and later converted to business use is placed in service for depreciation when the business use begins, and Section 179 has its own purchase and business-use tests.
- Related-party purchases. Property acquired from certain related persons generally does not qualify for Section 179.
If you are racing the calendar, work backward from install dates, not invoice dates. Your tax preparation file should include the invoice, proof of payment, delivery ticket and a note on when the asset was ready for use.
What qualifies (and what usually does not)
Publication 946 describes eligible Section 179 property as including tangible personal property, certain other tangible property used as an integral part of production or similar activities, off-the-shelf computer software (federally), and elected qualified Section 179 real property such as qualified improvement property and certain roofs, HVAC, fire protection and security systems on nonresidential buildings. To elect Section 179, you generally must acquire the property by purchase for use in your trade or business, and business use must be more than 50% in the year you place it in service.
What usually does not qualify:
- Land and land improvements such as parking lots and fences.
- Most buildings and structural components (apart from elected qualified Section 179 real property).
- Property acquired by gift or inheritance.
- Property acquired from certain related persons.
- Inventory held for sale to customers.
- Property used predominantly outside the United States (with limited exceptions).
California’s shorter list matters when you buy software or certain lodging or qualified improvement property: federal eligibility does not automatically mean California Section 179 eligibility. That is another reason Bay Area owners in Fremont, Hayward, Newark, San Leandro and Castro Valley should run the federal and California analyses side by side before signing a large purchase order.
Vehicles, SUVs and listed property
Vehicles are often the largest single purchase a local business makes in Q4, and they face extra rules. Listed property includes passenger automobiles and many other vehicles that lend themselves to personal use. Business use generally must exceed 50% for Section 179, and you need contemporaneous mileage or use records.
For tax years beginning in 2026, the federal Section 179 deduction for a qualifying heavy SUV (generally more than 6,000 pounds and not more than 14,000 pounds gross vehicle weight, with exceptions for certain cargo and multi-passenger designs) is capped at $32,000. After that Section 179 piece, federal bonus depreciation and regular MACRS may still apply to remaining basis if the vehicle otherwise qualifies. Passenger automobiles that are not heavy enough to escape the luxury-auto rules face separate annual depreciation caps; those dollar tables change and should be checked in Publication 946 rather than guessed from memory.
Illustration (SUV): a Union City contractor places a qualifying heavy SUV in service in 2026 and elects Section 179. The federal Section 179 piece on that SUV cannot exceed $32,000. Bonus depreciation or MACRS may apply federally to remaining basis; California depreciation follows California vehicle and Section 179 rules instead.
FTB instructions also note that California does not conform to several federal luxury-automobile modifications, and California publishes its own passenger-auto and truck/van depreciation limitation tables. Confirm the California table for the calendar year you place the vehicle in service before you forecast state taxable income.
Section 179 vs 100% bonus depreciation (federal stacking)
Federal law currently allows a powerful stack for many assets. Under the One Big Beautiful Bill Act changes reflected in Publication 946 and IRS interim guidance (Notice 2026-11), a 100% additional first-year (bonus) depreciation allowance generally applies to certain qualified property acquired and placed in service after January 19, 2025. Publication 946 frames this as a reinstatement of 100% special depreciation for that acquisition-and-placed-in-service window.
The typical federal order for a single asset is:
- Section 179 on the elected cost (subject to the 2026 dollar, phaseout, SUV and income limits).
- 100% bonus depreciation on remaining qualified basis, if the property qualifies under IRC Section 168(k).
- Regular MACRS on any basis still left.
Because California does not conform to Section 168(k), a federal write-off that reaches 100% in year one can still leave substantial California basis to depreciate over time, which is the core federal-vs-state gap behind every Section 179 Union City purchase model. Your books should maintain separate federal and California fixed-asset schedules from day one. That tracking supports Schedule CA, FTB 3885/3885A and cleaner year-end tax strategy conversations in future years when you sell or trade the asset.
Bookkeeping checklist before you buy
A clean purchase file is what turns a December shopping cart into a defendable deduction. Before you approve a year-end equipment spend for a Section 179 Union City plan, walk through this list:
- Confirm business use. Will the asset be used more than 50% in the trade or business in 2026?
- Confirm placed-in-service timing. Can installation, training and configuration finish so the asset is ready and available by December 31, 2026?
- Separate federal and California outcomes. Model the federal Section 179/bonus result and the California $25,000 (or lower phased-out) result before you buy.
- Watch software and real-property improvements. Federal eligibility for off-the-shelf software or certain improvements may not carry to California Section 179.
- Tag the GL correctly. Capitalize to fixed assets, not supplies, and record the placed-in-service date in your asset register.
- Save the packet. Invoice, payment proof, delivery ticket, serial numbers, mileage log (for vehicles) and a short note on business purpose.
- Check entity type. Corporations considering California’s R&TC Section 24356 additional first-year depreciation cannot also elect California Section 179 for the same year.
- Coordinate payroll and cash. Large equipment buys can tighten cash while estimated taxes and payroll still come due; map both on the same calendar.
Owners still forming a new entity before they buy equipment should also review company formation choices, because the purchaser on the invoice needs to match the taxpayer that will claim the deduction. For broader Q4 timing ideas, see our Fremont small business year-end tax checklist, how to reduce business taxes legally in 2026, California $800 franchise tax guide and what tax strategy can save your business.
FAQ: Section 179 Union City
What are the federal Section 179 limits for 2026?
For tax years beginning in 2026, IRS Publication 946 and Revenue Procedure 2025-32 set the maximum Section 179 expense at $2,560,000. That limit is reduced dollar-for-dollar when the cost of Section 179 property placed in service exceeds $4,090,000. The separate Section 179 cap for a qualifying sport utility vehicle is $32,000.
What is California’s Section 179 limit for Union City businesses?
California does not conform to the federal Section 179 dollar limits. Franchise Tax Board instructions for Forms 3885 and 3885A state that the California maximum is $25,000, reduced if the cost of all Section 179 property placed in service during the year is more than $200,000. California also does not conform to federal bonus depreciation under IRC Section 168(k).
Does equipment have to be placed in service by December 31, 2026?
Yes, for a calendar-year taxpayer. Property must be purchased and placed in service during the tax year to elect Section 179 for that year. Placed in service means the asset is ready and available for its specific business use, not merely ordered or delivered. Ordering in December and installing in January usually pushes the deduction into the next year.
Can I take both Section 179 and 100% bonus depreciation on the same asset?
Federally, the common order is to elect Section 179 first, then claim 100% additional first-year (bonus) depreciation on remaining qualified basis, then depreciate any leftover basis under MACRS. California does not allow federal bonus depreciation, and the California Section 179 election is capped at $25,000, so federal and California depreciation often diverge and must be tracked on Schedule CA and FTB Form 3885 or 3885A.
Do vehicles qualify for Section 179 for a Union City business?
Many business vehicles can qualify if business use is more than 50% and other Section 179 rules are met, but special limits apply. For tax years beginning in 2026, the federal Section 179 deduction for a qualifying heavy SUV is capped at $32,000. Passenger automobiles have different luxury-auto depreciation limits. California has its own passenger auto and truck/van depreciation caps and does not conform to several federal vehicle rules.
Does Accountico help with Section 179 and year-end equipment planning?
Yes. Accountico Inc. is a CPA firm in Union City that helps small businesses in Union City, Fremont, Newark, Hayward, San Leandro, Castro Valley and the Bay Area plan equipment purchases, elect Section 179 correctly for federal and California returns, keep fixed-asset records and coordinate year-end tax strategy with bookkeeping.
Plan your Section 179 Union City year-end equipment buys
Section 179 Union City planning works best when federal limits, California’s $25,000 cap and the December 31 placed-in-service rule are modeled together. Accountico Inc. helps owners across Union City, Fremont, Newark, Hayward, San Leandro, Castro Valley and the Bay Area with tax strategy, tax preparation and fixed-asset bookkeeping so year-end equipment decisions are documented correctly.
Book a free 30-minute consultation, call (510) 400-9341, or contact our Union City team at Accountico Inc, 33476 Alvarado Niles Rd, Ste A007, Union City, CA 94587.
This article is general information based on IRS Publication 946, Revenue Procedure 2025-32 and Franchise Tax Board Form 3885/3885A instructions available as of October 8, 2026. It is not tax or legal advice for your specific business. Limits, conformity rules and placed-in-service facts can change. Confirm current guidance for your situation.
