Startup costs: the first-year deduction and the amortized tail

When your business 'begins' decides everything

The tax treatment of a pre-opening cost turns on one question: had the practice actually started when you spent the money? Ordinary and necessary expenses of a running business are deductible in the year you pay them 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path.. But costs incurred before you are open for business are not current operating expenses — they are startup costs, and they follow a slower recovery path 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path.2Ref 2Internal Revenue Service (2026).Self-employed individuals tax center.That a solo practice reports its income and deductions on Schedule C..

"Open for business" means ready and available to see patients — the doors-open moment, not the day you incorporated or signed the lease. A solo practice reports its income and these deductions on Schedule C 2Ref 2Internal Revenue Service (2026).Self-employed individuals tax center.That a solo practice reports its income and deductions on Schedule C.. So the same subscription, bought the week before you open, is treated differently from the identical charge the week after. That line is where most of the confusion lives, and it is worth pinning down for each cost.

Sort your pre-opening spending into four buckets

Before you can deduct anything, split the pre-opening spend into categories, because each has its own rule, and lumping them together is the most common error. Four buckets cover almost everything a new practice spends: startup costs, organizational costs, capital equipment, and prepaid or inventory items 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path.3Ref 3Internal Revenue Service (2026).Publication 946, How To Depreciate Property.That capital equipment is depreciable property recovered under MACRS, the Section 179 expensing election, and bonus depreciation — separately from startup costs, and only once placed in service.4Ref 4Internal Revenue Service (2026).Limited liability company (LLC).That the legal and filing costs of forming the entity are organizational costs, distinct from operating startup costs, and that the entity is separate from its tax classification.. Only the first two ride the startup-and-amortization track; the others have separate homes.

• Startup costs. Pre-opening operating and investigation costs — market research, pre-opening rent, staff training, launch consulting, credentialing fees paid before you open 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path..
• Organizational costs. The legal and filing costs of creating the entity itself — the LLC operating agreement, state formation fees 4Ref 4Internal Revenue Service (2026).Limited liability company (LLC).That the legal and filing costs of forming the entity are organizational costs, distinct from operating startup costs, and that the entity is separate from its tax classification..
• Capital equipment. Exam tables, computers, furniture, clinical devices — these are depreciated, not treated as startup costs 3Ref 3Internal Revenue Service (2026).Publication 946, How To Depreciate Property.That capital equipment is depreciable property recovered under MACRS, the Section 179 expensing election, and bonus depreciation — separately from startup costs, and only once placed in service..
• Prepaids and inventory. Insurance paid in advance, supplies on the shelf — deducted as used, under their own timing rules.

Building a written startup budget as you go makes this sort almost automatic later.

How startup and organizational costs are recovered

Startup and organizational costs are not lost — they are recovered on a defined schedule once the practice opens. The pattern is a limited amount deducted in your first year of business, with the remainder amortized in equal pieces over a fixed multi-year period that the tax code sets 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path.. You elect this treatment on the return for the year the practice begins.

The exact first-year cap, the level of total startup costs at which that first-year amount begins to shrink, and the number of months over which the balance amortizes are all fixed figures the IRS publishes — and they are precisely the details an authoritative source, not a secondhand summary, should give you. Confirm the current numbers in the IRS guidance or with your CPA before you file 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path.. As a rule of thumb only: modest total startup costs are often largely absorbed in year one, while a heavy pre-opening spend puts more of the balance onto the amortization tail.

One more distinction saves money and confusion. General investigation into whether to open a practice at all — the "should I do this" research — can be treated as a startup cost, but costs tied to acquiring one specific existing practice you then did not buy follow different rules. When you cannot tell which side a pre-opening cost falls on, log it with a short note on its purpose, because the purpose of the spend, not the vendor on the receipt, drives the treatment 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary expenses of an operating business are currently deductible, distinguishing them from pre-opening startup costs that follow a slower recovery path..

Equipment is depreciated, not amortized

Capital equipment you buy to open — exam tables, a laptop, clinical devices, office furniture — is not a startup cost. It is depreciable property, recovered under its own rules in Publication 946 3Ref 3Internal Revenue Service (2026).Publication 946, How To Depreciate Property.That capital equipment is depreciable property recovered under MACRS, the Section 179 expensing election, and bonus depreciation — separately from startup costs, and only once placed in service.. That matters because those rules are often faster: the Section 179 election can let you expense the full cost of qualifying equipment in the first year, and bonus depreciation can apply on top, within annual limits 3Ref 3Internal Revenue Service (2026).Publication 946, How To Depreciate Property.That capital equipment is depreciable property recovered under MACRS, the Section 179 expensing election, and bonus depreciation — separately from startup costs, and only once placed in service..

There is a timing subtlety that mirrors the startup rule. Property has to be placed in service — ready and available for use in the business — before depreciation starts, so buying a device during setup does not start the clock until the practice is operating 3Ref 3Internal Revenue Service (2026).Publication 946, How To Depreciate Property.That capital equipment is depreciable property recovered under MACRS, the Section 179 expensing election, and bonus depreciation — separately from startup costs, and only once placed in service.. Keep the equipment invoices with your other pre-opening records; the deduction lane is different, but the substantiation burden is the same.

Launching from home, and the home-office rule

Many solo practices, especially telehealth ones, open from a home office, which brings its own deduction with its own gate. The space must be used regularly and exclusively for the practice — a spare room that doubles as a guest room fails the exclusivity test 5Ref 5Internal Revenue Service (2026).Home office deduction.That the home-office deduction requires regular and exclusive business use and offers a simplified $5-per-square-foot method up to 300 square feet or an actual-expense method.. Meet it and you can use the simplified method of $5 per square foot up to 300 square feet, or track actual expenses 5Ref 5Internal Revenue Service (2026).Home office deduction.That the home-office deduction requires regular and exclusive business use and offers a simplified $5-per-square-foot method up to 300 square feet or an actual-expense method..

The deduction generally begins when the business begins, consistent with the startup rule, not while you are still setting the room up 5Ref 5Internal Revenue Service (2026).Home office deduction.That the home-office deduction requires regular and exclusive business use and offers a simplified $5-per-square-foot method up to 300 square feet or an actual-expense method.. One knock-on effect is worth flagging: when a qualifying home office is your principal place of business, driving from home to other work sites becomes deductible mileage rather than nondeductible commuting. That interaction is small on any one trip and meaningful over a year.

Keep the receipts: substantiation for pre-opening spend

A startup deduction is claimed on the return for the year you open — often long after you actually spent the money — so the paper trail has to survive the gap. Keep receipts, invoices, and proof of payment for every pre-opening cost, sorted by the four buckets 6Ref 6Internal Revenue Service (2026).Recordkeeping.That business records are generally kept three years, and six where income was substantially understated — the retention that protects a pre-opening deduction claimed years later.. The IRS generally expects business records kept for three years, and longer — six years — where income was substantially understated 6Ref 6Internal Revenue Service (2026).Recordkeeping.That business records are generally kept three years, and six where income was substantially understated — the retention that protects a pre-opening deduction claimed years later..

Two cautions close the loop. First, a venture that posts losses year after year and never turns toward profit can be recharacterized, and a large pre-opening deduction sits right on the hobby-loss line if the practice never truly launches — a written 12-month runway and evidence you sought profit are your defense. Second, if you paid a consultant or contractor during launch, your 1099-NEC duties may attach to those payments. Contemporaneous records answer both.