12 accounting and compliance costs your company is paying without noticing

If your company is profitable enough to care about cost, the money going out through penalties, missed elections, and cleanup work is almost certainly larger than the money going out through software subscriptions. It is also harder to see, because none of it arrives as a line item labeled what it is.
These costs share a structure. Each one is a decision made by default rather than deliberately, or a deadline that passed while nobody was watching, and each is cheap to prevent and expensive to correct. The correction is usually three to ten times the prevention, and it lands at the worst moment, during a lender request, a diligence process, or a filing deadline.
Here are twelve of them, what each one costs, and what stops it.
1. The S-Corp election window closes
The election has a deadline tied to the start of the tax year you want it to apply to. Miss it and the election generally takes effect the following year, so a full year of the payroll tax saving is gone.
What prevents it: deciding on the election when the entity is formed rather than at the first tax appointment, and running the calculation rather than accepting the default advice either way.
2. Contractors who are actually employees
Paying someone on a 1099 while setting their hours and providing their equipment is a classification that does not hold. When it is challenged, the company owes back payroll taxes, amounts that should have been withheld, penalties, and interest, across every year the arrangement ran.
What prevents it: reviewing each contractor against the federal test and the test in their state, and revisiting the classification when a project engagement quietly becomes a permanent one.
3. Flat allowances treated as reimbursements
Car allowances, phone stipends, and home office payments made as a fixed monthly amount fail the accountable plan requirements. They are wages, and if they have not been taxed as wages, the company has been under-withholding for as long as the arrangement has existed.
What prevents it: either substantiating actual expenses or running the payment through payroll. Renaming it changes nothing.
4. Form 5472 filed late, or not at all
If a foreign person or entity holds 25% or more of your US company, the company files Form 5472 with its return. The penalty is $25,000 per form per year, and it applies whether or not the company had revenue or owed tax.
What prevents it: keeping a running list of transactions with foreign related parties through the year, including interest-free loans and costs the foreign parent absorbed, rather than assembling it from memory at filing.
5. Delaware franchise tax calculated the expensive way
Delaware offers two calculation methods, and the notice the state sends uses the one that produces the larger number for a company with many authorized shares. Companies pay it because it arrived looking like a bill. Recalculating under the alternative method frequently reduces the amount substantially.
What prevents it: running both calculations every year rather than paying what the notice says.
6. Good standing quietly lapsing
A missed annual report or a registered agent that stopped being current puts the entity out of good standing. It usually surfaces when you need a certificate for a financing, a bank, or a customer contract, and reinstatement takes time you do not have at that moment.
What prevents it: tracking the annual obligations for every state the company is registered in, not only the state of incorporation.
7. Employees in states where the company is not registered
One remote hire creates payroll tax registration obligations in their state, and often a foreign qualification requirement too. Companies discover this when the employee files for unemployment or when a state sends a notice.
What prevents it: treating every hire in a new state as a registration event before the first payroll rather than after.
8. Sales tax nexus crossed without anyone registering
Economic nexus thresholds mean you can create a filing obligation in a state you have never visited, purely through sales volume. The liability accrues from the date the threshold was crossed, not the date you noticed, and it compounds because uncollected tax comes out of your margin rather than the customer's pocket.
What prevents it: monitoring sales by state against the current thresholds, and registering when you approach one rather than after you pass it.
9. Books that were never actually closed
Transactions flowing in from bank feeds make a file look current. If nothing was ever reconciled, the balance sheet does not tie to reality, and the work of fixing it arrives all at once when a lender, an investor, or a preparer asks.
What prevents it: a monthly close with a committed date, so errors are caught in the month they occur rather than eighteen months later.
10. Information returns missed because W-9s were never collected
Contractor payments require information returns in January. Collecting a W-9 after the fact, from someone who has stopped responding, is the common failure, and penalties apply per return.
What prevents it: collecting the W-9 before the first payment, as a condition of payment.
11. Notices that nobody opened
State and IRS notices go to the registered address. If that address is a former office, a home someone moved out of, or a registered agent whose forwarding nobody monitors, the response window runs while the notice sits unread. Many notices escalate on a timer, and penalties accrue from the notice date rather than the date you saw it.
What prevents it: a mail address that is actually monitored, with notices routed to whoever can act on them. Inkle Mailroom exists for this.
12. Depreciation and elections made by default
Equipment expensed rather than capitalized, or capitalized without an in-service date, removes the choice about how it is depreciated. Elections that could have been made deliberately get made by omission, and reversing that usually means amending a return.
What prevents it: recording fixed assets properly at purchase, so the decision is still available at filing.
What these twelve have in common
None of them is an accounting error. Each is an obligation that existed whether or not anyone was tracking it, and a default that applied because no decision was made.
That is also why the usual cost-reduction exercise misses them. Auditing subscriptions and renegotiating vendor contracts examines money you chose to spend. This list is money you did not choose to spend, and it is generally the larger number for a company past its first year or two.
Inkle Books covers the bookkeeping side of this, sold on its own, with the option to add a bookkeeper to review the books and file for you. The broader point stands regardless of who does the work: the leaks are in the obligations, not the line items.
The bottom line
Cost reduction in most companies means auditing what you chose to buy. The larger number is usually sitting in what you never decided at all: an election that lapsed, a worker classified by habit, a state you were operating in without registering, a notice delivered to an address nobody checks. Work through this list against your own company once a year, ideally before your filing season rather than during it. The items that apply to you will be obvious, and every one of them is cheaper to handle now than at the point something forces the issue.
This post is general information, not tax or legal advice. Thresholds, penalties, and filing requirements change and vary by state, so confirm the current rules for your company before acting.
Frequently asked questions
What is the most expensive compliance mistake a small company makes?
For foreign-owned US companies, a missed Form 5472 is usually the largest single item, at $25,000 per form per year. For companies with workers, misclassification is typically larger overall because the exposure compounds across every year and every affected worker.
How far back can these problems go?
Generally across every year the arrangement or omission ran, subject to statutes of limitation that vary by issue and can be extended where a required return was never filed. This is why the cost of discovery rises the longer something goes unnoticed.
Can we fix these ourselves once we find them?
Some, yes. Registering in a state, closing the books, and collecting W-9s going forward are straightforward. Anything involving prior years, particularly classification and reimbursement issues, has correction programs and relief provisions attached that are worth using properly rather than improvising.
Which of these apply to a company with no employees and no revenue?
More than owners expect. Franchise tax, annual reports, good standing, registered address, and Form 5472 for foreign-owned entities all apply regardless of activity. Dormant is not the same as exempt.
When do these usually get discovered?
During diligence for a financing or a sale, when a lender asks for statements, or when a notice escalates. All three are moments when you have the least time and the least leverage to fix anything.




